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HomeMy WebLinkAbout20011197 Ver 1_Complete File_20020808\o??v O T Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Gregory J. Thorpe, Ph.D. Acting Director Division of Water Quality February 25, 2002 Rutherford County DWQ Project 4 01-1197 APPROVAL of 401 Water Quality Certification Delbert Pitman 460 Glover Road Ellensboro, NC 28040 Dear Ms. Pitman: You have our approval, in accordance with the attached conditions, to place fill material in 149.5 feet of streams for the purpose of constructing the Pitman dam (Max Crowe dam) as you described in your revised application dated February 125. 2002. After reviewing your application, we have decided that this fill is covered by General Water Quality Certification Number 3287 This Certification allows you to use Nationwide Permit Number 39 when the Corps of Engineers issues it. In addition, you should get any other federal, state or local permits before you go ahead with your project including (but not limited to) Sediment and Erosion Control, Coastal Stormwater, Non-Discharge and «'ater Supply Watershed regulations: Also this approval will expire when the accompanying 404 or CAMA permit expires unless otherwise specified in the General Certification. This approval is only valid for the purpose and design that you described in your application. If you change your project, you must notify us and send us a new application. If the property is sold, the new owner must be given a copy of this Certification and approval letter and is thereby responsible for complying with all conditions. This approval shall expire when the corresponding Nationwide Permit expires or as otherwise provided in the General Certification. If total wetland fills for this project (now or in the future) exceed one acre, compensatory mitigation may be required as described in 15A NCAC 2H .0506 (h). For this approval to be valid, you must follow the conditions listed in the attached certification. If you do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing. You must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition, which conforms to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, P.O. Box 2744-. Raleigh, N.C. 276 1 1-7447. This certification and its conditions are final and binding unless you ask for a hearins. This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If you have any questions, please telephone John Dorney at 919-733-1786 or Mike Parker at our Asheville Regional Office at 828-251-6209. Attachment cc: Corps of Engineers Asheville Field Office Asheville DWQ Regional Office File Copy Central Files Jonathan Hollifield, Odom and Associates S' erely, er.T ,P. Wetlands.' 01 Un:t 1650 Mail Service Center Raleigh, NC 27699-1650 Ph: (919) 733-7015 Fax: (919) 733-6893 N'DEhR Customer Service 1 800 623-7748 10 Odom &.Associates Engineering, Inc. REGISTERED MAIL February 15, 2002 Mr. Robert Ridings Division of Water Quality 2321 Crabtree Boulevard Parkview Building Suite 250 Raleigh, North Carolina 27604 RE: Pitman Dam Design Corrections Ruth ouny, North Carolina D Q# 011197 J Dear Mr. Ridings: Per our phone conversation, please find enclosed seven (7) copies of the revised Pitman Dam profile design. The following changes were made to the drawing: 1. Design changes were made to reduce the stream disturbance length to less than 150 linear feet, thus eliminating the need for mitigation (Total impact equals 134.69 feet). Additionally, the $475.00 fee for the Max Crowe Dam Design project (DWQ# 011749) is included in this mailing. Should you have any questions or comments regarding this matter, please do not hesitate to give me a call. Sincerely, (;?2?q2?e ?- Jonathan F. Hollifield 152 East Main Street 9 Forest City, North Carolina 28043 • (828) 247-4495 • Fax (828) 247-4498 QG ? ?r > o -c Certified Mail Return Receipt Requested Delbert Pitman 460 Glover Road Ellensboro, 28040 Dear Mr. Pitman: Michae William G. Ross, Jr., Department of Environment and Natural Re Gregory J. Thorpe, Ph.D., Acting L Division of Water ( September 20, 2001 Re: Pond Construction Rutherford County DWQ # 01h97 The Division of Water Quality has reviewed your submittal for a 401 Certification for the subject project. Based on the meeting between Staff from our Asheville Regional Office and John Hollifield of Odum and Associates, on September 10, 2001, the pond will be reconfigured to reduce the impacts. It is our understanding that new plans will be submitted to the Division that reflect these changes. This information is needed by DWQ in order for us to decide whether this project is approvable. I can be reached at 919-733-1786 if you have any questions. Until this information is received, I will place this project on hold due to incomplete information (15A NCAC 2H .0507(a)(4)). Sincerely, John R. Dorney Water Quality Certification Program cc: Asheville DWQ Regional Office Fife Central Files North Carolina Division of Water Quality, 401 Wetlands Certification Unit, 1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address) 2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location) 919-733-1786 (phone), 919-733-6893 (fax), http://h2o.enr.state.nc.us/ncwetiands/ MEMORANDUM TO: John Dorney Regional Contact: Non-Discharge Branch WO Supervisor: Date: SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS Facility Name Delbert Pittman Project Number 01 1197 Recvd From APP Received Date 8/8/01 Recvd By Region Project Type pond construction County Rutherford County2 Region Asheville Certificates _ Stream Impacts (ft.) Permit Wetland Wetland Wetland Streai i ,res Feet ME Type Type Impact Score Inde) ? eq. Req. - - 39 Stream O YO N ? 9-46 870.00 r F7 ON ?? Ala Mitigation Wetland MitigationType Type Acres Feet Is Wetland Rating Sheet Attached? O Y ON Did you request more info? O Y ON Have Project Changes/Conditions Been Discussed With Applicant? O Y O N Is Mitigation required? O Y O N Recommendation: O issue O Issue/fond O Deny Provided by Region: Latitude (ddmmss) Comments: ?.? Longitude (ddmmss) cc: Regional Office Page Number 1 Central Office Draft - for Internal Review and Comments Date: To: ?RRO ?FRO ?WaRO ?WiRO ?WSRO ?ARO )9ARO Steve Mitchell Ken Averitte Deborah Sawyer Joanne Steenhuis Jennifer Frye Mike Parker Pete Colwell qr? Triage Check List t1l t Project Name _?/k.? t?l?r p0 DWQ Project mber_ V/ - //9 County ?d _ Comments due in Central Office by: _ From: I=d C, y-. 34tw%- ?%[ 4 G Telephone (919) 733- 4t';-"5 The file attached is being forwarded to you for your evaluation. Please call if you need assistance. X, length impacted ? Stream determination ? Wetland determination and distance to blue-line surface waters on USGW topo maps S Minimization/avoidance issues ? NW 14 ? Neuse Buffer Rules ? Pond fill (is the pond drained or holding water) ? Mitigation Ratios ? Ditching ? Are the stream and or wetland mitigation sites available and acceptable? ? Check drawings for accuracy ? Is the application consistent with pre-application meetings? ? Cumulative impact concerns Cppy . 64"cc..n cA, tee,! 1 1 I 1 1 1 1 1 1 A 1 1 1 1 1 1 1 1 PRELIMINARY ENGINEERING REPORT POND AND DAM DESIGN Prepared for: Delbert Pitman June, 2001 Prepared by: 19 Odom &Associates Engineering, Inc. Post Office Box 1787 Shelby, North Carolina 28152 4 Fi?F?oPr ()11197 r ? ?! I RRQ ??S p IoN WATT Nor'glwhamo ver5i'09 1 1 1 1 1 1 TABLE OF CONTENTS 1. PROJECT DESCRIPTION II. SOILS III. SUPPORTING CALCULATIONS Figure 1. 2-Year Storm Event Hydrograph Figure 2. 2-Year Storm Event Non-Routed and Routed Hydrographs Figure 3. SCS Peak Discharge Method for a 50-year Storm Event Figure 4. 50-Year Storm Event Hydrograph Figure 5. 50-Year Storm Event Non-Routed and Routed Hydrographs Figure 6. Maximum Water Elevation Due to a 50-year Storm Event Figure 7. Outflow Capability Based on Water Elevation Figure 8. Buoyancy Calculations IV. APPENDIX A: SPECIFICATIONS V. APPENDIX B: PCN APPLICATION FORM VI. APPENDIX C: EROSION CONTROL PLAN I. PROJECT DESCRIPTION The purpose of this project is to construct a small pond north of the Town of Ellenboro, North Carolina. The dam is of sufficient size to require permitting by the state, and after a dam classification study executed by this office it has been classified as a low hazard class, small dam. ' The elevations shown on the drawing are based on an assumed datum and do not reflect the true elevation above sea level. Based on the assumed datum, the spillway discharges the flow at an elevation of 436 feet with a top of dam elevation of 458 feet thus resulting in an effective dam ' height of 22 feet. The top of water elevation will be 455 feet resulting in a total pond area of approximately three and one-quarter (3.25) acres. Assuming the average depth of the pond is equal to 40% of the dam height (i.e., 8.8 feet), the pond size in acre-feet would be 28.6 acre-feet. Regarding the actual design of the dam, a 20-foot wide private road has been designed to cross the crest to allow access to both sides of the pond. In addition, the upstream embankment will be a 2:1 slope and the downstream embankment will have a 3:1 slope for ease of maintenance. The emergency spillway is a 60-foot wide channel placed in the crest of the dam and is 1.5 feet deep. The channel will be concrete lined due to the significant 50-year storm flows it will be required ' to pass. Ii. SOILS I Soil studies will be performed on-site by the engineer at the time of excavation. 1 e 1 III. SUPPORTING CALCULATIONS The following calculations were performed using both a spreadsheet designed to calculate storm flows as well as the program "Hydroflow Hydrographs". The spreadsheet was designed to calculate the storm flows based on the SCS method of floodwater runoff. The values obtained from the spreadsheet were then used in the Hydroflow program to design the spillways size(s). Included in this section is a copy of the spreadsheet output as well as four graphs from the Hydroflow program displaying the hydrograph of the routed and non-routed storm flows, water surface elevation vs. time, and discharge capability vs. water elevation. Based on the derived information, the 50-year storm event can be carried in the emergency spillway comprised of a 60-foot wide trench 1.5 feet deep lined with concrete. Lastly, a spreadsheet was created to calculate the necessary weight required to offset the buoyancy of the standpipe. The above information is located on the following pages. 1 1 Fl, r? 1 1 a IJ I FIGURE 1: 2-YEAR STORM EVENT HYDROGRAPH The following hydrograph displays the discharge (in cubic feet per second) due to a 2-year storm event. The information used to plot this hydrograph was derived in the Hydroflow program. f i i i i Hydrograph Plot English Hyd. No. 1 Pitman SCS Discharge Hydrograph type = SCS Runoff Storm frequency = 2 yrs Drainage area = 600.00 ac Basin Slope = 8.6% Tc method = LAG Total precip. = 4.00 in Storm duration = 24 hrs Peak discharge = 78.45 cfs Time interval = 6 min Curve number = 55 Hydraulic length = 6780 ft Time of conc. (Tc) = 98.8 min Distribution = Type II Shape factor = 484 Total Volume = 1,168,286 cult 0 1 - SCS Runoff - 2 Yr - Qp = 78.45 cfs J 1 w FIGURE 2: 2-YEAR STORM EVENT NON-ROUTED AND ROUTED HYDROGRAPHS The following hydrograph displays both the 2-year storm not routed through the pond as well as the 2-year storm routed through the pond. When routed, the peak flow due to the 2-year storm is 55.76 cubic feet per second. Complying with state design criteria, the 2-year storm event can be handled by the primary spillway comprised of 24" and 30" pipe. t 11 i 1 I Hydrograph Plot English Hyd. No. 2 Hydrograph type = Reservoir Storm frequency = 2 yrs Inflow hyd. No. = 1 Max. Elevation = 456.59 ft Storage Indication method used Peak discharge = 55:76 cfs Time interval = 6 min Reservoir name = Pitman Dam Max. Storage = 279,368 cuft Total Volume = 1,168,284 cuft 2 - Reservoir - 2 Yr - Qp = 55.76 cfs c? 1 1 L 1-1 FIGURE 3: SCS PEAK DISCHARGE METHOD FOR A SO-YEAR STORM EVENT 1 Storm Flow Calculation Utilizing the SCS Peak Discharge Method Town of Ellenboro, North Carolina This document calculates the flow for a 50-year, 24-hour storm event in Elienboro, North Carolina, using the SCS method. The area in question is comprised of approximately 600 acres of land with a soil classification of B. The hydraulic length (maximum length of water flow) is approximately 6780 feet with an average slope of 8.55%. The land in this area has the following characteristics:. Type Description of Terrain % of Total CN Value Type I Wooded 100% 55 Type II None Listed N/A N/A Type III None Listed N/A N/A Type IV None Listed N/A N/A Type V None Listed N/A N/A In addition to the above information, data must be extracted from tables that can be found in the 'Erosion and Sediment Control Planning and Design Manual' published by the North Carolina Department of Environment and Natural Resources. All references in the equations below refer to this manual. ' Based on the soil and land types listed above, the CN can now be calculated. Based on the given information as well as chosen CN values from Table 8.03b, page 8.03. 10 in the reference, the final CN value is calculated to be: Type Description of Terrain % of Total CN Value % Total x CN Value TypeI Wooded '100% 55 55 Type II None Listed N/A N/A N/A Please Note: The column "% Total x CN Type III None Listed N/A N/A N/A Value" is summed to give the Final CN Type IV None Listed N/A N/A N/A Value Type V None Listed N/A N/A N/A Final CN Value >>> 55 Based on the area in question (Elienboro, North Carolina), the rainfall amount during a 50-year, 24-hour storm is 6.9 inches (Reference, Figure 8.03). In addition, the average runoff depth is 1.8 inches (Reference, Page 8.03.17, Table 8.03c). Lastly, the equivalent drainage area based on the hydraulic length of 6780 feet is 350 acres (Reference, Page 8.03.18, Figure 8.03p). Determining Q ' We first determine our peak discharge (140 CFS/Inch) using Table 8.03q, and multiply it by our runoff depth of 1.8 inches to get our initial flow. Q, = 140 CFS/Inch x 1.8 inches = 252 CFS The following equation takes into account the equivalent acreage vs. the actual acreage based on the hydraulic length. Q2 = 252 CFS x (600acres/350acres) = 432 CFS ' We will next use the impervious factor of 1 (Reference, Page 8.03.21, Figure 8.03r) to modify the flow. Q3 = 432 CFS x 1 = 432 CFS ¦ To adjust for the watershed slope, we will use a slope adjustment factor of 1.02 (Reference, Page 8.03.23, Table 8.03d) ' Q4 432 CFS x 1.02 = 440.7 CFS Lastly, we must adjust for any ponding effects impacting our flow with an adjustment factor of 1 (Reference, Page 8.03.24, Table 8.03e) Q = 440.7 CFS x 1 = 440.7 CFS iummary 3ased on the above equations and adjustment factors found in the reference, the flow for a 50-year, 24-hour storm event it his particular area of Ellenboro, North Carolina, would be 440.7 CFS. 1 J I I FIGURE 4: 50-YEAR STORM EVENT HYDROGRAPH ' The following hydrograph displays the discharge (in cubic feet per second) due to a 50-year storm event. The information used to plot this hydrograph was derived in the Hydroflow program. Since the peak flow value was roughly the same using the Hydroflow program (437.65 ' cfs vs. 440.7 cfs), this value was used in all additional calculations. I I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Hydrograph Plot English Hyd. No. 1 Pitman SCS Discharge Hydrograph type = SCS Runoff Storrn frequency = 50 yrs Drainage area = 600.00 ac Basin Slope = 8.6% Tc method = LAG Total precip. = 7.00 in Storm duration = 24 hrs Peak discharge = 437.65 cfs Time interval = 6 min Curve number = 55 Hydraulic length = 6780 ft Time of conc. (Tc) = 98.8 min Distribution = Type II Shape factor = 484 50 40 30 CY 20 10 0 5 10 15 20 Time (hrs) / Hyd. 1 Total Volume = 4,683,583 cuft 25 30 1 - SCS Runoff - 50 Yr - Op = 437.65 cfs 1 t FIGURE 5: 50-YEAR STORM EVENT NON-ROUTED AND ROUTED HYDROGRAPHS 1 The following hydrograph displays both the 50-year storm not routed through the pond as well as the 50-year storm routed through the pond. When routed, the peak flow due to the 50-year storm is 421.83 cubic feet per second. Complying with state design criteria, the 50-year storm event (421.83 CFS) can be routed through the combination of the primary spillway comprised of 24" and 30" pipes and the emergency spillway comprised of a concrete lined 60'x1.5' channel. J I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Hydrograph Plot English Hyd. No. 2 Hydrograph type = Reservoir Storm frequency = 50 yrs Inflow hyd. No. = 1 Max. Elevation = 457.95 ft Storage Indication method used Peak discharge = 421.83 cfs Time interval = 6 min Reservoir name = Pitman Dam Max. Storage = 519,677 cuft Total Volume = 4,683,579 cult 2 - Reservoir - 50 Yr - Qp = 421.83 cfs CY / Hyd. 1 / Hyd. 2 0 10 20 30 40 Time (hrs) 1 1 ' FIGURE 6: MAXIMUM WATER ELEVATION DUE TO A 50-YEAR STORM EVENT The following chart displays the maximum water elevation during a 50-year storm event. This procedure was performed to assure no overtopping of the dam would occur in the event of such a storm. Overtopping of the dam could potentially lead to severe erosion and possibly dam failure. 11 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Hydrograph Plot English Hyd. No. 2 Hydrograph type = Reservoir Storm frequency = 50 yrs Inflow hyd. No. = 1 Max. Elevation = 457.95 ft Peak discharge = 421.83 cfs Time interval = 6 min Reservoir name = Pitman Dam Max. Storage = 519,677 cuft Storage Indication method used. Total Volume = 4,683,579 cuR 2 - Reservoir - 50 Yr - Max. El. = 457.95 ft 458. 457. 456. > w 456. 455. 455.0 J- 10 20 30 40 Time (hrs) FIGURE 7: OUTFLOW CAPABILITY BASED ON WATER ELEVATION ' The following chart displays the maximum flow capacity of the entire piping system (primary and emergency) based on the water elevation above the spillway. 1 11 Pitman Dam 3. 2. 2. ? 1. Cu 0. 0._ 0 100 200 300 Discharge (cfs) 400 / Total / Culv A / Culy B / Culy C / Culv D Weir A / Weir B / Weir C / Weir D FIGURE 8: BUOYANCY CALCULATIONS i i Anti-Flotation Calculations The following information is a calculation to determine the necessary area and weight required to offset the buoyancy force of the standpipe in dam construction. The exact displacement is calculated and then a safety factor is used to determine the final weight and concrete volume required. These calculations are based on the average value of concrete density of 150 pcf. In this scenario, the standpipe diameter is 30 inches with a total length of 19 feet. Below is the calculation of the displaced water volume, weight of the water in pounds, and the cubic yards of concrete required to offset this buoyancy force. Displaced Water Volume V = (Pi)(r2)(1) _ Weight of Displaced Water W = (V)(density) = Required Volume of Concrete V = (weight)1(density)(27 cf/cy) = (pi][1.25 ft][1.25 ft][19 ft] = 93.3 cubic feet (93.3 cq[62.4 pcf] = 5819.8 pounds [5819.8 lbs]1(150 pcq[27 cf/cy] = 1.437 cubic yards Now that we have the exact figure to offset the buoyancy force, we can now apply the chosen safety factor of 1.25 to determine the volume of concrete required. V = (initial volume)(safety factor) = [1.437 cy][1.25] = 1.7962 cubic yards APPENDIX A: SPECIFICATIONS ' SMALL DAM CONSTRUCTION SPECIFICATIONS ' 1. SITE PREPARATION ' The site shall be shaped and prepared prior to the placement of earth fill. Once the clearing and grubbing limits have been identified, all trees, stumps, logs, snags, shrubs, rubbish, and debris shall be removed. Trees shall be cut as near to the ground as conventional equipment will permit. All ' stumps and roots having a diameter of one inch or greater shall be grubbed out to a depth of one foot below the ground surface. Any fences encountered within the grubbing limits shall be removed as part of the clearing and grubbing operation. All material removed as part of the ' clearing and grubbing operation shall be burned. All disposal of material by burning shall be in strict accordance with applicable state law and local ordinance. ' All channel banks and steep areas within the foundation area of the dam shall be shaped to a slope of 1:1 or flatter. The foundation shall be stripped of topsoil and undesirable material. After stripping, the foundation area shall be prepared to assure proper bond with the fill material by removing loose dry material, scarifying, disking, adjusting the moisture, and compacting the foundation material as necessary, prior to the placement of the fill material. ' 2. EXCAVATION The cutoff trench shall be excavated to remove and sand, gravel, and other permeable material. The actual depth of the cutoff trench shall be determined in the field by the engineer to ensure all unsatisfactory material is removed. Suitable materials obtained from the required excavations may be used in the embankment. Unsuitable material shall be disposed of in an area designated by the engineer. 3. EARTH FILL All fill material shall be free from sod, brush, roots, frozen soil, rocks over 6 inches in diameter and other objectionable material. The distribution and gradation of materials shall be such that there will be no lenses, pockets, streaks, or layers of material differing substantially in texture or gradation. The more plastic and impervious material shall be placed in the center portions of the fill. Fill shall not be placed until the foundation area is free of standing water and is properly grubbed, shaped, and scarified. The moisture content of the fill material shall be such that the fill can be satisfactorily compacted and shall be within plus or minus 3% of optimum. Optimum moisture shall be as defined by ASTM D 698, Method A. The placing and spreading of fill shall be started at the lowest point of the foundation and shall be brought up in approximately horizontal layers. The maximum thickness of a layer before compaction shall be 8 inches. The entire surface of each layer shall be compacted by at least three passes of a standard tamping roller. Fill placed within two feet of the pipe or any structure shall be placed in layers not to exceed four inches thick and compacted to a density equivalent to that of the surrounding fill by means of hand tampering or manually directed power tampers. Heavy equipment shall not be operated within two feet of any structure. l 4. PIPE SPILLWAY The spillway barrel and riser pipe will be 14 gauge CMP and 12 gauge CMP, respectively. Fabrication and installation of the pipe spillway shall be as specified on the drawings and as required by specification. The pipe conduit shall be placed on a firm foundation to the lines and grades shown on the plans. Installation shall be performed in a skillful and workmanlike manner in accordance with the manufacturer=s recommendations. Prior to laying the pipe, a foundation trench shall be prepared for the pipe by filling approximately two inches above grade with compacted material. The foundation area for the pipe shall then be excavated to approximately 1 inch below the planned invert elevation for the pipe and shaped to conform to the outside diameter of the pipe. One inch of select impervious moist material shall be placed in the shaped foundation trench immediately prior to placing the pipe. The pipe shall then be placed to line and grade and firmly and uniformly bedded in the foundation trench throughout its entire length with select impervious moist fill material. The area supporting the joints shall be over excavated as necessary to allow for assembly and to ensure that the pipe barrel is uniformly supported by the soil bedding. Select moist backfill material shall be placed and hand compacted around the pipe conduit at approximately the same rate on both sides of the pipe. Compaction around the bottom half of the pipe must be firm to fill all voids, but extreme caution must be exercised to prevent damage, movement, uplift or deflection of the pipe. ' 5. DRAIN FILL- N/A 6. DRAIN PIPE- N/A ' 7. SEEDING- ' Subsoil shall be prepared to eliminate uneven areas and low spots. Lines, levels, profiles and contours must be maintained. Make changes in grade gradual and bend slopes into level areas. Remove foreign materials, weeds and undesirable plants ' and their roots and remove any contaminated sub-soil. Scarify subsoil to a depth of 3 inches where topsoil is to be places. Repeat cultivation in areas where equipment used for hauling and spreading topsoil has compacted the sub-soil. ' Spread topsoil to a minimum depth of 8 inches over area to be seeded and rake until smooth. Place the topsoil during dry weather and on unfrozen subgrade. Remove ' vegetable matter and foreign non-organic material from topsoil while spreading. Grade the topsoil to eliminate rough, low or soft areas and to ensure positive drainage. Install edging at periphery of seeded areas in straight lines to consistent ' depth. w i i i i i SEEDING SPECIFICATIONS PERMANENT SEEDING GRASS LINED CHANNELS Tall Fescue ..........................................................................................................175-200 lb/ac Kentucky Bluegrass ..................................................................................................... 20 lb/ac Rye ............................................................................................................................... 40 lb/ac Lime ......................................................................................................................... 4000 lb/ac 10-10-10 fertilizer ....................................................................................................1200 lb/ac Straw ........................................................................................................................ 4000 lb/ac ALL OTHER SURACES Tall Fescue .................................................................................................................130 lb/ac Kobe lespedeza ............................................................................................................ 10 lb/ac Rye ............................................................................................................................... 40 lb/ac Lime ........................................................................................................................4000 lb/ac 10-10-10 fertilizer ....................................................................................................1000 lb/ac Straw ........................................................................................................................ 4000 lb/ac TEMPORARY SEEDING SUMMER (May 15-Aug 15) German millet .............................................................................................................. 40 lb/ac FALL (Aug 15-Dec 15) Rye (grain) .................................................................................................................120 lb/ac WINTER/EARLY SPRING (Feb 1-May 15) Rye (grain) .................................................................................................................120 lb/ac Korean lespedeza ......................................................................................................... 50 lb/ac Lime ......................................................................................................................... 2000 lb/ac 10-10-10 ..................................................................................................................... 750 lb/ac I] 7 APPENDIX B: PCN APPLICATION FORM N , vdt?f ? y?>c;uu ' bYATFR OUr?t?i ? S! t , t; .tee, ?._.. .. O ??wAr?9 4G ~I 'C _-00001M.- 011197 Pre-Construction Notification (PCN) Application Form For Section 404 and/or Section 10 Nationwide, Regional and General Permits, Section 401 General Water Quality Certifications, and Riparian Buffer and Watershed Buffer Rules This form is to be used for projects qualifying for any of the U.S. Army Corps of Engineers' (USACE) Nationwide, Regional or General Permits as required by Section 404 of the Clean Water Act and/or Section 10 of the Rivers and Harbors Act, and for the North Carolina Division of Water Quality's ' (DWQ) associated General 401 Water Quality Certifications. This form is also to be used for any project requiring approval under any Riparian Buffer Rules implemented by the N.C. Division of Water Quality. This form should not be used if you are requesting an Individual 404 Permit or Individual 401 Water Quality Certification. The USACE Individual Permit application form is available online at httv://Y,,ww.saw.usace.army.mil/,.vetlands/Penii--api).htrrL The USACE is the lead regulatory agency. To review the requirements for the use of Nationwide, Regional or General permits, and to determine which permit applies to your project, please go to the USACE website at http://www.saw.usace.annv.mil/wetlands/reZQur.htm, or contact one of the field ' offices listed at the end of this application. The website also lists the responsible project manager for each county in North Carolina and provides additional information regarding the identification and regulation of wetlands and waters of the U.S. f The DWQ issues a corresponding Certification (General or Individual), and cannot tell the applicant which 401 Certification will apply until the 404 Permit type has been determined by the USACE. Applicants are encouraged to visit DWQ's 401/Wetlands Unit website at h"://h2o.enr.state.nc.us/ncwetlands to read about current requirements for the 401 Water Quality Certification Program and to determine whether or not Riparian Buffer Rules are applicable. The applicant is also advised to read the full text of the General Certification (GC) matching the specific 404 Permit requested. In some cases, written approval for some General Certifications is not required, provided that the applicant adheres to all conditions of the GC. Applicants lacking access to the intemet should contact DWQ's Central Office in Raleigh at (919) 733-1786. Trout Waters Coordination - Special coordination with the North Carolina Wildlife Resources Commission (NCWRC) is also required for projects occurring in any of North Carolina's twenty-five counties that contain trout waters. In such cases, the applicant should contact the appropriate NCWRC regional coordinator (listed by county on the last page of this application). Page 1 of 12 1 CAMA Coordination - If the project occurs in any of North Carolina's twenty coastal counties (listed on ' the last page of this application) the applicant should also contact the North Carolina Division of Coastal Management (DCM) at (919) 733-2293. DCM will determine whether or not the project involves a designated Area of Environmental Concern, in which case DCM will act as the lead permitting agency. ' In such cases, DCM will require a Coastal Area Management Act (CAMA) Permit and will coordinate the 404/401 Permits. USACE Permits - Submit one copy of this form, along with supporting narratives, maps, data forms, photos, etc. to the applicable USACE Regulatory Field Office (addresses are listed at the end of this application). Upon receipt of an application, the USACE will determine if the application is complete as soon as possible, not to exceed 30 days. This PCN form is designed for the convenience of the applicant to address information needs for all USACE Nationwide, Regional or General permits, as well as information required for State authorizations, certifications, and coordination. Fully providing the ' information requested on this form will result in a complete application for any of the USACE Nationwide, Regional or General permits. To review the minimum amount of information that must be provided for a complete PCN for each USACE Nationwide permit, see Condition 13, 65 Fed.Reg. 12893 ' (March 9, 2000), available at http://www.saw.usace.army.mil/wetlands/nwpfinalFedReg.pd£ Processing times vary by permit and begin once the application has been determined to be complete. Please contact the appropriate regulatory field office for specific answers to permit processing periods. ' 401 Water Quality Certification or Buffer Rules - All information is required unless otherwise stated as optional. Incomplete applications will be returned. Submit seven collated copies of all USACE ' Permit materials to the Division of Water Quality, 401/Wetlands Unit, 1650 Mail Service Center, Raleigh, NC, 27699-1650. If written approval is required or specifically requested for a 401 Certification, then a non-refundable application fee is required. In brief, if project impacts include less than one acre of cumulative wetland/water impacts and less than 150 feet cumulative impacts to ' streams, then a fee of $200 is required. If either of these thresholds is exceeded, then a fee of $475 is required. A check made out to the North Carolina Division of Water Quality, with the specific name of the project or applicant identified, should be stapled to the front of the application package. For more information, see the DWQ website at http://h2o.ehnr.state.nc.us/ncwetlands/fees.html. The fee must be attached with the application unless the applicant is a federal agency in which case the check may be issued from a separate office. In such cases, the project must be identifiable on the U.S. Treasury check ' so that it can be credited to the appropriate project. If written approval is sought solely for Buffer Rules, the application fee does not apply, and the applicant should clearly state (in a cover letter) that only Buffer Rule approval is sought in writing. Wetlands or waters of the U.S. may not be impacted prior to issuance or waiver of a Section 401 Water Quality Certification. Upon receipt of a complete application for a 401 Certification, the Division of Water Quality has 60 days to prepare a written response to the applicant. This may include a 401 Certification, an on-hold letter pending receipt of additional I requested information, or denial. ' Page 2 of 12 Office Use Only: Form Version April 2001 USACE Action ID No. DWQ No. I If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A" rather than leaving the space blank. 1. Processing 1. Check all of the approval(s) requested for this project: X Section 404 Permit ? Section 10 Pen-nit ? 401 Water Quality Certification ? Riparian or Watershed Buffer Rules 2. Nationwide, Regional or General Permit Number(s) Requested: /I/W S17 3. If this notification is solely a courtesy copy because written approval for the 401 Certification is not required, check here: ? 4. If payment into the North Carolina Wetlands Restoration Program (NCWRP) is proposed for mitigation of impacts (see section VIII - Mitigation), check here: ? II. Applicant Information 1. Owner/Applicant Information Name: Lbc&er a7r, .,:;,j Mailing Address: 4GO 6coLzx &/--h> ?cr?6aco, AIC 26040 Telephone Number: (6M 4T S -a4:Gz Fax Number: AJIA E-mail Address: AJIA 2. Agent Information (A signed and dated copy of the Agent Authorization letter must be attached if the Agent has signatory authority for the owner/applicant.) Name: C?n C ?a55c?ra raV? Company Affiliation: - _&J -r Mailing Address: ---g- ncc E c? Lscx /787, HeCSI/ . AfC- 1'52. Telephone Number. E-mail Address: Page 3 of 12 III. Project Information Attach a vicinity map clearly showing the location of the property with respect to local landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property ' boundaries and development plans in relation to surrounding properties. Both the vicinity map and site plan must include a scale and north arrow. The specific footprints of all buildings, impervious surfaces, or other facilities must be included. If possible, the maps and plans should ' include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion, so long as the property is clearly defined. For administrative and distribution purposes, the USACE requires information to be submitted on sheets no larger than 11 by 17-inch format; however, DWQ may accept paperwork of any size. DWQ prefers full-size construction drawings rather than a sequential sheet version of the full-size plans. If full-size plans are 1 reduced to a small scale such that the final version is illegible, the applicant will be informed that the project has been placed on hold until decipherable maps are provided. T?/h? J.4?r 1. Name of project: 2. T.I.P. Project Number (NCDOT OnlY) AJA 3. Property Identification Number (Tax PIN): VIA C 4 5. Site coordinates, if available (UTM or Lat/L.ong): /_/A (Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) 6. Describe the existing land use or condition of the site at the time of this application: ' XFrL/,gaZf L1d_&o. ,-;? a-%z G Zzccr 0i ? .h= 7-,A-- f?1iC ii C t?PCC 7. Property size (acres): ,?2p,y 8. Nearest body of water (stream/river/sound/ocean/lake): ' 9. River Basin: 5M D (Note - this must be one of North Carolina's seventeen designated major river basins. The ' River Basin map is available at http://h2o.enr.state.nc.u-/adniin/mans/.) Page 4 of 12 1 Location County: &?z,=can Nearest Town: Ccr Subdivision name (include phase/lot number): ?t//i? 10. Describe the purpose of the proposed work: ZS a;C3:? gj,::, Rc aezT-L ? sc? r 11. List the type of equipment to be used to construct the project: % r, ez6Z 7-27gx_ 12. Describe the land use in the vicinity of this project: Z?7 Prior Project History If jurisdictional determinations and/or pemtmits have been requested and/or obtained for this project (including all prior phases of the same subdivision) in the past, please explain. Include the USACE Action ID Number, DWQ Project Number, application date, and date permits and certifications were issued or withdrawn. Provide photocopies of previously issued permits, certifications or other useful information. Describe previously approved wetland, stream and buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project, list and describe permits issued for prior segments of the same T.I.P. project, along with construction schedules. Future Project Plans Are any additional permit requests anticipated for this project in the future? If so, describe the anticipated work, and provide justification for the exclusion of this work from the current application: A&,4 Proposed Impacts to Waters of the United States/Waters of the State It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to wetlands, open water, and stream channels associated with the project. The applicant must also provide justification for these impacts in Section VII below. All proposed impacts, permanent and temporary, must be listed herein, and must be clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) must be shown on a delineation map, whether or not impacts are proposed to these systems. Wetland and stream evaluation and delineation forms should be included as appropriate. Photographs may be included at the applicant's discretion. If this proposed impact is strictly for wetland or stream mitigation, list and describe the impact in Section VIII below. If additional space is needed for listing or description, please attach a separate sheet. Page 5 of 12 1. Wetland Impacts Wetland Impact Site Number indicate on ma FTYPI of Impact* Area of Impact acres Located within 100-year Floodplain** es/no Distance to Nearest Stream linear feet Type of Wetland*** List each impact separately and identify temporary impacts. Impacts include, but are not limited to: mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams, separately lis t impacts due to both structure and flooding. * * 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps (FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA MapService Center at 1-804358-9616, or online athttn://www.fenia.Lov_. * * * List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond, Carolina Bay, bog, etc.) List the total acreage (estimated) of existing wetlands on the property: Total area of wetland impact proposed: 2. Stream Impacts, including all intermittent and perennial streams Stream Impact Site Number indicate on ma Type of Impact* Length of Impact linear feet Stream Name** Average Width of Stream Before Impact Perennial or Intermittent? leasespecify) wC. 'f r C k -' L * List each impact separately and identify temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap, dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net loss/gain), ' stabilization activities (cement wall, rip-rap, crib wall, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included. ** Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest downstream named stream into which it flows. USGS maps are available through the USGS at 1-800-358-9616, or online at www.uses.eov. Several intemet sites also allow direct download and printing of USGS maps (e.g., www.tooozone.com www.mapouest.com, etc.). Cumulative impacts (linear distance in feet) to all streams on site: Page 6 of 12 I 3. Open Water Impacts, including Lakes, Ponds, Estuaries, Sounds, Atlantic Ocean and any other Water of the U.S. Open Water Impact Site Number indicate on ma Type of Impact* Area of Impact acres Name of Waterbody (if applicable) Type of Waterbody (lake, pond, estuary, sound, bay, ocean, etc. - List eacn impact separateiy ana iaennry temporary impacts. impacts mciuuc, oul arc Ilui 111111MU W: Lill, cRGnvauvu, uacug,ug, flooding, drainage, bulkheads, etc. 4. Pond Creation If construction of a pond is proposed, associated wetland and stream impacts should be included above in the wetland and stream impact sections. Also, the proposed pond should be described here and illustrated on any maps included with this application. Pond to be created in (check all that apply): ? uplands 9 stream ? wetlands Describe the method of construction (e.g., dam/embankment, excavation, installation of draw-down valve or spillway, etc.): 1grn Proposed use or purpose of pond (e.., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): >1- - r Size of watershed draining to pond: 6U) tq?-XE?- Expected pond surface area: Z5 (1:4". VII. Impact Justification (Avoidance and Minimization) Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide information related to site constraints such as topography, building ordinances, accessibility, and financial viability of the project. The applicant may attach drawings of alternative, lower-impact site layouts, and explain why these design options were not feasible. Also discuss how impacts were minimized once the desired site plan was developed. If applicable, discuss construction techniques to be followed during construction to reduce impacts. Page 7 of 12 VIII. Mitigation DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC Division of Water Quality for projects involving greater than or equal to one acre of impacts to ' freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial streams. USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide Permits, published in the Federal Register on March 9, 2000, nitigation will be required when necessary to ensure that adverse effects to the aquatic environment are minimal. Factors ' including size and type of proposed impact and function and relative value of the impacted aquatic resource will be considered in determining acceptability of appropriate and practicable mitigation as proposed. Examples of mitigation that may be appropriate and practicable include, but are not limited to: reducing the size of the project; establishing and maintaining wetland and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of aquatic resource functions and values by creating, restoring, enhancing, or preserving similar ' functions and values, preferable in the same watershed. If mitigation is required for this project, a copy of the mitigation plan must be attached in order ' for USACE or DWQ to consider the application complete for processing. Any application lacking a required mitigation plan or NCWRP concurrence shall be placed on hold as incomplete. An applicant may also choose to review the current guidelines for stream restoration ' in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at http://h2o.enr.state.nc.us/ncwetlands/strmgide.html. ' 1. Provide a brief description of the proposed mitigation plan. The description should provide as much information as possible, including, but not limited to: site location (attach directions and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet) of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view, preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a description of the current site conditions and proposed method of construction. Please attach a separate sheet if more space is needed. 1 Page 8 of 12 2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration t Program (NCWRP) with the NCWRP's written agreement. Check the box indicating that you would like to pay into the NCWRP. Please note that payment into the NCWRP must be reviewed and approved before it can be used to satisfy mitigation requirements. Applicants will be notified early in the review process by the 401/Wetlands Unit if payment into the t NCWRP is available as an option. For additional information regarding the application process for the NCWRP, check the NCWRP website at thtttn://h2o.enr.state.nc.us/wrl2/index.htm if use of the NCWRP is proposed, please check the appropriate box on page three and provide ' the following information: Amount of stream mitigation requested (linear feet):_ 1,11A ' Amount of buffer mitigation requested (square feet): A 4,4 Amount of Riparian wetland mitigation requested (acres): A4,?( Amount of Nor riparian wetland mitigation requested (acres): ,(/% ' Amount of Coastal wetland mitigation requested (acres): &YA ' DL Environmental Documentation (DWQ Only) Does the project involve an expenditure of public funds or the use of public (federal/state/local) ' land? Yes ? No 9 ' If yes, does the project require preparation of an environmental document pursuant to the requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)? Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA coordinator at (919) 733-5083 to review current thresholds for environmental documentation. ' Yes ? No 14 If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a ' copy of the NEPA or SEPA final approval letter. Yes ? No tZ ' X. Proposed Impacts on Riparian and Watershed Buffers (DWQ Only) It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to ' required state and local buffers associated with the project. The applicant must also provide justification for these impacts in Section VII above. All proposed impacts must be listed herein, and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a ' map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ Regional Office may be included as appropriate. Photographs may also be included at the applicant's discretion. ' Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233 (Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify )? ' Yes ? No S If you answered "yes", provide the following information: Page 9 of 12 Identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer mitigation is required calculate the required amount of mitigation by applying the buffer multipliers. Zone* Impact (square feet Multiplier Required Mitigation 1 3 2 1.5 Total Zone 1 extends out 30 feet perpendicular from near bank of channel; Zone 2 extends an additional 20 feet from the edge of Zone 1. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or .0260. 1,11A Stormwater (DWQ Only) Describe impervious acreage (both existing and proposed) versus total acreage on the site. Discuss stormwater controls proposed in order to protect surface waters and wetlands downstream from the property. _ xta C Sewage Disposal (DWQ Only) Clearly detail the ultimate treatment methods and disposition (nor-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. A41A XIH. Violations (DWQ Only) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules? Yes ? No 9 Is this an after-the-fact permit application? Yes ? No Page 10 of 12 J ' XIV. Other Circumstances (Optional): It is the applicant's responsibility to submit the application sufficiently in advance of desired construction dates to allow processing time for these permits. However, an applicant may choose to list constraints associated with construction or sequencing that may impose limits on ' work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and Threatened Species, accessibility problems, or other issues outside of the applicant's control). Applicant/Agenfs Signature Date ' (Agent's signature is valid only if an authorization letter from the applicant is provided.) US Army C orps Of Engineers Field Offices and County Coverage ' Asheville Regulatory Field Office Alexander Cherokee Iredell Mitchell Union US Army Corps of Engineers Avery Clay Jackson Polk Watauga ' 151 Patton Avenue Buncombe Cleveland t G Lincoln Macon Rowan Rutherford Yancey Room 208 Burke on as Asheville, NC 28801-5006 Cabarrus Graham Madison Stanley Telephone: (828) 271-4854 Caldwell Haywood McDowell Swain ' Fax: (828) 271-4858 Catawba Henderson Mecklenburg Transylvania Raleigh Regulatory Field Office Alamance Durham Johnston Rockingham Wilson US Army Corps Of Engineers Alleghany Edgecombe Lee Stokes Yadkin 6508 Falls of the Neuse Road Ashe Franklin Nash Sunry Suite 120 Caswell Forsyth Northampton Vance Raleigh, NC 27615 Chatham Granville Orange Wake Telephone: (919) 876-8441 Davidson Guilford Person Warren ' Fax: (919) 876-5283 Davie Halifax Randolph Wilkes ' Washington Regulatory Field Office US Army Corps Of Engineers Post Office Box 1000 Washington, NC 27889-1000 Telephone: (252) 975-1616 Fax: (252) 975-1399 Wilmington Regulatory Field Office ' US Army Corps Of Engineers Post Office Box 1890 Wilmington, NC 28402-1890 Telephone: (910) 251-4511 Fax (910) 251.4025 Beaufort Currituck Jones Pitt Bertie Dare Lenoir Tyrrell Camden Gates Martin Washington Carteret* Green Pamlico Wayne Chowan Hertford Pasquotank Craven Hyde Perquimans *Croatan National Forest Only Anson Duplin Onslow Bladen Harnett Pender Brunswick Hoke Richmond Carteret Montgomery Robeson Columbus Moore Sampson Cumberland New Hanover Scotland Page 11 of 12 US Fish and Wildlife Service / National Marine Fisheries Service US Fish and Wildlife Service Raleigh Field Office Post Office Box 33726 Raleigh, NC 27636-3726 Telephone: (919) 856-4520 Division of Water Quality 401 Wetlands Unit 1650 Mail Service Center Raleigh, NC 27699-1650 ' Telephone: (919) 733-1786 Fax: (919) 733-9959 I I I Division of Coastal Management 1638 Mail Service Center Raleigh, NC 27699-1638 Telephone: (919) 733-2293 Fax: (919) 733-1495 Western Piedmont Region Coordinator 3855 Idlewild Road Kemersville, NC 27284-9180 Telephone: (336) 769-9453 Mountain Region Coordinator 20830 Great Smoky Mtn. Expressway Waynesville, NC 28786 Telephone: (828) 452-2546 Fax: (828) 506-1754 US Fish and Wildlife Service Asheville Field Office 160 Zillicoa Street Asheville, NC 28801 Telephone: (828) 665-1195 North Carolina State Agencies Division of Water Quality Wetlands Restoration Program 1619 Mail Service Center Raleigh, NC 27699-1619 Telephone: (919) 733-5208 Fax: (919) 733-5321 National Marine Fisheries Service Habitat Conservation Division Pivers Island Beaufort, NC 28516 Telephone: (252) 728-5090 State Historic Preservation Office Department Of Cultural Resources 4617 Mail Service Center Raleigh, NC 27699-4617 Telephone: (919) 733-4763 Fax: (919) 715-2671 CAMA and NC Coastal Counties Beaufort Chowan Bertie Craven Brunswick Currituck Camden Dare Carteret Gates NCWRC and NC Trout Counties Alleghany Caldwell Ashe Mitchell Avery Stokes Burke Surry Buncombe Henderson Cherokee Jackson Clay Macon Graham Madison Haywood McDowell Hertford Pasquotank Hyde Pender New Hanover Perquimans Onslow Tyrrell Pamlico Washington Watauga Wilkes Polk Rutherford Swain Transylvania Yancey Page 12 of 12 u 1 =? --? \ ?j.? ?i't `?="ij ? ?? ?`• 4 \ '"`-'?='/'?` fliJ ./ :\,%` i'! r - f , L-- ?' 1? / r • ?'7??r, ?.. ? ? 1, ?? ?`?l ?? ? ?? ? ? ,? ? t . ?? + • ? / ? +. .- ? r ?'f ?? .. - ? ?. \ r I 14 t ? ' f ? / / ? ,r?? ?'.,' \:fJ?t ;` !?'•- ??/,r _ o ?y \ ? , ?• ?- l cj `., j / i / 1`?.?`\ i I? /? I 1 ? tt:.,. ???-- \+ ; ? ?? ='`•? -''?'' tom ? f'; ? } ! }? , ? ' ? ? ?,?'-. i ? ?; ,ill ??, 'l. r;,_ ?` t`.?, - 1, . _ 3 ' ? ==' t ??r' r1,op `5 ?? 'r?_,, r, I ?';'?- .c• ? `,` ,. ` ti ?j?, ? \`i? ? ? .\l, % )? ' \\ ? ;. ? , • . }rte • 'J N35 23. h X? L*8 i•._ b L-N36 2 , . X t- 044 1 I E J /, .? j ?.1. \-_-.. r r ? .. _-" \ ?"_"?/vim ??? / /;? '_ _ ? M r? \? i <. ? ? { ? '?'"\ ' ? /!/ Vr r?? I : ? J" ? `v S?`L J__?',.? stir/ ??, ? ?t? ,..+. •\ ?, _ .??\/\ ? J ' r ? ? • t- ?,;f 1?J = ,.-fit >) i:__? ,, ,; \? ; ` ?? -.'L s 1?; /r' )'rte --/ ' 1 ,200 t ` 35?/ ?/ ,? } r '• ?? _,'?..?. ? `, ; i .` / , :?-t? -.;?. / .,..•^? _ i ?? it ?; i ?.?._ / t t I'A ?`, ?,, i?.. / ?,,.!ir_S __ ; ? ??/ i -- ± "'i \ / ^ t,. ??- .i alt . i P` .?,` " }?1 , \ I/r?I ? ' _? ""?I `. •>? ?, ? ..? i (l`, 'I?; t l .d V ,r ?'` \., r?.+, i? r J00: Z r1 ?? i N35 - l N-IJ \ / h ` J ?\ I i'• r r ivr V?40\•{•7 VVil?liyi?{r \% 17.7.7 LGLViiaJ.G iiiiaYV44raa? aaaJ v?v•iv vv.aa•ww aiw r.•..• ?r?.r EROSION AND SEDIMENTATION CONTROL PLAN PITTMAN DAM SITE OWNER: DELBERT PITTMAN Rutherford County, North Carolina JUNE 13, 2001 Odom & Associates Engineering, Inc. P.O. BOX 1787 Shelby, North Carolina 28151 (704)484-3778 i i i TABLE OF CONTENTS PAGE Narrative .....................................................1 Quadrangle Sheet ...............................................2 Supporting Calculations ........................................ 3-5 Financial Responsibility/Ownership Form ......................... 6-7 Site Erosion and Sedimentation Control Plan .................. Enclosure NOTE: The reference used in this plan is the "Erosion and Sediment Control Planning and Design Manual." All figures, graphs, tables, and calculations used were derived from this reference except where specifically indicated. NARRATIVE PROJECT DESCRIPTION The purpose of the project is to construct a dam approximately 4,752' north west of the intersection of SRI 300 and SRI 184. Approximately 4.0 acres will be disturbed during this construction period. SITE DESCRIPTION The site is a large acreage tract located between of SR 1749, SR 1769, and SR 1786. Sandy Run Creek runs through the property. The terrain at the site is mountainous. ADJACENT PROPERTY Land use in the immediate vicinity is rural/residential. SOILS The soils in the project area are determined to be classified as Soil Group B utilizing the table on page 8.03.8 of the reference. MAINTENANCE RESPONSIBILITY The owner is responsible for ensuring compliance with temporary measures and for instituting permanent measures. 1 3s N35.:2425 IN _ z ♦ _ .5' jJ354246 _ ^ _ N35/233 f - f j - 35, ,o s 3s ' I. RUNOFF SUPPORTING CALCULATIONS Runoff was determined using the Rational Method as explained in the manual. We determined the acreage contributing runoff using the Sunshine and Polkeville Quadrangle Map. The value for the Runoff Coefficient © was taken from Table 8.03a in the manual. A C value for the site during construction was chosen as 0.7. A return period of 25 years and the rainfall intensity duration curve for Charlotte was used in the design. The governing equation is Q=C*I*A. Data for calculations is below: I AREA I C I Tc I I I Q. (Be) lminl finAk"i TSP# 1 0.2 0.7 5 7.1 1.0 TSP#2 0.3 0.7 5 7.1 1.5 TSP#3 0.9 0.7 5 7.1 4.5 TSP#4 3.8 0.4 5 7.1 10.8 TSP#5 4.9 0.4 5 7.1 13.9 T P#6 4. 0.4 5 7.1 13.9 II. SEDIMENT TRAPS There will be one temporary sediment trap utilized on the project. In accordance with Section 6.60 of the reference, the temporary sediment trap is to be used below disturbed areas where the total drainage area is less than 5 acres. They are sized for a volume of 1800 W/acre based on the disturbed area draining into the basin. For improved efficiencies, larger surface areas are used with the following equation as guidance: Surface Area (ac.) = (0.01) peak inflow rate (cfs). ' Also, weir lengths are based on drainage area. 3 ' TSP#l : Total Drainage Area = 0.2 acres Total Disturbed Area =0.2 acres Peak Inflow Rate = 1.0 cfs 1) Volume = 1800 ft3 (0.2) =360 ft3 2) Surface Area = (0.01)(1.0)(43560) = 436 ft2 ' For a rectangular shape with a width of 15 ft, length = 30 ft For uniform purposes, all traps will be at least 2 ft. deep with 1 ft. clean out mark 3) Weir length = 4 ft ' TSP#2: Total Drainage Area = 0.3 acres ' Total Disturbed Area =0.3 acres Peak Inflow Rate = 1.5 cfs 1) Volume = 1800 ft3 (0.3) =540 ft3 2) Surface Area = (0.01)(1.5)(43560) = 654 ft2 For a rectangular shape with a width of 19 ft, length = 35 ft ' For uniform purposes, all traps will be at least 2 ft. deep with 1 ft. clean out mark 3) Weir length = 4 ft ' TSP#3: Total Drainage Area = 0.9 acres Total Disturbed Area =0.4 acres ' Peak Inflow Rate = 4.5 cfs 1) Volume = 1800 ft3 (0.4) =720 ft3 ' 2) Surface Area = (0.01)(4.5)(43560) = 1960 ft2 For a rectangular shape with a width of 32 ft, length = 62 ft For uniform purposes, all traps will be at least 2 ft. deep with 1 ft. clean out mark ' 3) Weir length = 4 ft ' TSP#4: Total Drainage Area = 3.8 acres Total Disturbed Area = 1.3 acres ' Peak Inflow Rate = 10.8 cfs 1) Volume = 1800 ft3(1.3) = 2340 ft3 ' 2) Surface Area = (0.0 1)(10.8)(43560) = 4704 ft2 For a rectangular shape with a width of 50 ft, length = 100 ft For uniform purposes, all traps will be at least 2 ft. deep with 1 ft. clean out mark ' 3) Weir length = 8 ft TSP#5: TSP#6: Total Drainage Area = 4.9 acres Total Disturbed Area = .9 acres Peak Inflow Rate = 13.9 cfs 1) Volume = 1800 ft3 (0.9) = 1620 ft3 2) Surface Area = (0.01)(13.9)(43560) = 6055 ft2 For a rectangular shape with a width of 56 ft, length = 110 ft For uniform purposes, all traps will be at least 2 ft. deep with 1 ft. clean out mark 3) Weir length = 10 ft Total Drainage Area = 4.9 acres Total Disturbed Area = 0.6 acres Peak Inflow Rate = 13.9 cfs 1) Volume = 1800 ft3 (0.6) = 1080 ft3 2) Surface Area = (0.01)(13.9)(43560) = 6055 ft2 For a rectangular shape with a width of 56 ft, length = 110 ft For uniform purposes, all traps will be at least 2 ft. deep with 1 ft. clean out mark 3) Weir length = 10 ft 5 I r FINANCIAL RESPONSIBILITY/OWNERSHIP FORM SEDIMENTATION POLLUTION CONTROL ACT No person may initiate any land-disturbing activity on one or more contiguous acres as covered by the Act before this form and an acceptable erosion and sedimentation control plan have been completed and approved by the Land Quality Section, N.C. Department of Natural Resources and Community Development. (Please type or print and, if question is not applicable, place N/A in the blank.) Part A 1. Project Name: Pittman Dam Site 2. Location of land-disturbing activity: County Rutherford City or Township Ellenboro and Highway / Street SR1749 3. Approximate date land-disturbing activity will be commenced: ASAP 4. Purpose of development (residential, commercial, industrial, etc.): Residential 5. Approximate acreage of land to be disturbed or uncovered: 4.0 6. Amount of fee enclosed: $ 160.00 7. Has an erosion and sedimentation control plan been filed? Yes No _ Enclosed X 8. Person to contact should sediment control issues arise during land-disturbing activity. Name Stephen C. Hood Telephone (704) 484-3778 9. Landowner(s) of Record (Use blank page to list additional owners.): Delbert Pittman Name(s) 460 Glover Road Mailing Address Street Address Ellenboro NC 28040 City State Zip 828-453-0662 Telephone City State Zip Telephone 10. Recorded in Deed Book No. 764 Page No. 385 Part B. Person(s) or firm(s) who are financially responsible for this land-disturbing activity (Use the blank page to list additional persons or firms): Same as item 9 Name of Person(s) or Firm(s) Mailing Address City State Zip Telephone Street Address City State Zip Telephone 6 (a) If the Financially Responsible Party is not a resident of North Carolina, give name and street address of the North Carolina Agent. N/A Name Mailing Address City State Zip Telephone Street Address City State Zip Telephone (b) If the Financially Responsible Party is Partnership or other person engaging in business under an assumed name, attach a copy of the certificate of assumed name. If the Financially ' Responsible Person is a Corporation, give the name and street address of the Registered Agent: N/A Name of Registered Agent ' Mailing Address Street Address City State Zip City State Zip Telephone Telephone ' The above information is true and correct to the best of my knowledge and belief and was provided by me under oath. (This form must be signed by the financially responsible person if an individual or his attorney-in-fact or if not an individual by an officer, director, partner, or registered agent with ' authority to execute instruments for the financially responsible person). I agree to provide corrected information should there be any change in the information provided herein. Type print name , . ??- vz'?? Signature Title or Authority Z-Z-O/ Date a Notary Public of the County of State of North Carolina, hereby certify that appeared personally before me this day and being duly sworn acknowledged that the above form was executed by him. Witness my hand and notarial seal, this day of (SEAL) 7 Notary My commission expires ,19 7 - carry rip-rap up - BASE TO BE 6 OF sides of spiliwoy \,`\`riut/n~ii,r1 - = - t ® WASHED STONE WITH 24" top of berm rY5 washed stone 2 ~ ' ,'CA~ 4' ~O ' v „~„r" °~;;.p OF RIP RAP ON TOP op elew ion o s ormwoter 1' ireeboad m~ I ~ wy r, ~o - o - _ $ 47O j r~~ ~ + r r~T ~ ; --f--T r ~ ' ~ I i ~ TT - --T-r-T , - r - - ~r r r ~~T, r-~ I I + ? ~I ii i; T r~~ - i I I ii I i' 1 i _ i ~ ~ I~~' ~ , ~..°~~m1 ~ . o M o o •o ° ~0 0 0 468 ~ +y~ 1~ ~ ' ~ I i : _ ~ ' ~ --i_ I ~ + ' „ ~ ~ I I I I - a - 466 I ~ - '-I- I r,-,-,~T,~~-,, -I-~-~-,- -~-;-I1 1 r-~-I-1 r_ r .~-r-F-r~ 1 ,rt ~ ~-r~ tr+-~-I-~~ 1 rt r ~ r ~ ~ ~ ~~"I ( r l I ~ ~.-~r I ~ I i i { ° ~ ~ ~ o ° - stir ~ ~ , ~ , ~ t' d5a = 9' , a a , ~ ~ iii,. , FILTER r(p rap 464 ~ I ! ~ . ICI '-?I ~j~ I', I~ ~ f I 1 I I ~ I _ i i ~ ~ ~ ~ ',r.~ I I }r-----~~~ r~~~ rt;.~~I __+.I 1 ~ I-{--1 t ~ ~ I ~ ~ I I ~ I - . ;`_~~i- + ~ r ~ -C_ i ~ f i i I i I - MATERIAL maximum level of ' d INE ~1 wrtri MrG{.~R,• ~ ii key in battam layer , 9 Q ~ ~ dimeat cdlected G i ' i + , ~ l ' -i- , ~ 1 ~ ~ J-J L 1 I . Y ~-+-r-r r~ t .1.. ~ . ~ t t 1 : ~ I~.._I-1 L-L_l.- ~ ~ -~L~+-l--!-.{--~- 1 1 ~ ~ I r _ - -t- i ~ r ~~i~ ; ~i r i li r 462 r- I I I ~ I-~ ~fi rt }1 I ~ ~ 1-r ~ i ~ } ~ - ' , ; ~ + ~ 1fi ~ I I I ; , 1 T fi I I =r I , _1_I 1- I .T~-~_~~ ~ Ia7_(~k4~k . , r- -r-~--' , r rr-r-~r+ ~-r~ --ter i+r rt r i-~r-~~...i-r+~-r~-~~-t- -t r r ~ r- - _ i~-- ~ v '~I~"~ it i i ~ ~ ~ ~ i i ~I~ - i~ i ~ i i ~ i i ~wD Dawn THE Hoff vROVnES . ~ =a ar np-rap J ~ , V` - con bosh when this ~ ~ Q Cfl00~ES 1HA7 NQL CATpI SEED. ~ ~ m - IeVel IS reoMed ~ ~~<<~ r i„~~~~ PlkYttl IND AEDIICE RIINDFF. ~ ~ I r I I ~ _ 6O i i I i I ~ r ~ i i ~ __i . ! ~ i I ~ ! ~ ~ ~ - ~-I -I ~ ~ 'J-+r. _i i I'I I ~ I' ~-~ll I I I I I ~8a ~ ~ F~-,~~+~ ~ r ~-r ~ ~ SECTION THROUGH BASIN AND FILTER SECTION Gary rip-rap up 458 { I 1 r +~-r~- 4 t t r I i -i ~ r}~ r- ~ ~ ~ I f r I t~, r r ~ ~ ~ I I I I I f ~ ~ 1 I I I 'III r~r , i. -r - 1- . , : : I I 1 I I ili i :-L ' i i I_ I I i I I i I- - I~ ~1y~_' - ~ i. 1 i i, + _ ~ I I -t.__{. ' i. !-.y r _i +r-y-, - r r _ ~1 + r ~~-err- _ Y. I + I', - i ~rr-r + ±rh l Y~ rtt 11-- TRACKING sides of spillway I 456 ~ ~ ~ ~1 i ~ I rt~ I II t~ ~ :rt. ~~1 I i ' i I i IE, _ ~ ~ ~ _ ~ I ~ I I - - ~ r ~ ~ ~ ~5~ I ~ ~ 11_~ _7 I, - ~ t-i ~,-I~~~~ ~ - „ I - ~l ~ i i -4 : '~I : i ~ r_}_i-' i ~ ! ~ _ r ' i, , .l , r { i I ! ~ I v ~ I _ I I , i_ _ -~-F,.-. L _ d5o = s° rip-rap r ` ~ ' + F { ; i , I I I r ~ a2-+ ~ I I t } ~ ~ ~ ~ I + f 7 ~ } ~ ~ ~ ~ ~ ~ ~ fi' ' ~ t+ I _ I I 1 I I ~ ~ ~I i I 1 454 ~ + + 1- i i ; ~-r~' t ~ I r~ I r ~ r ~ ~ ~ ~ ' i ~ ~ i ' ' 0.5 DIA Lo ~ 30' II I I 1 freeboard mi I ' ~ d-"1~]~Ti IiIF1~~A~°"°I'~~°~ 452 r I t ~ i i t ~`~-Ir* ; r 1 I - r i ~ i I - rT± ? j -~-r I - I~ F1~' + ` t I i I I ~ I i { r~'T---. I i ~ ri ~ i I MIN. 'D' =PIPE DIAMETER I i I ( o ° ° ~ 3' MIN. I i"~1_ I ~ ~ '-rTtT1-I~+,' ! - h ~ a_L I ~ _ _ i -~..~-t~~ I i ~ ~ i I i ~ ~t ~-1- i i I I 450. r,; , , - - ~~~00 • ~ o^ ° p5 washed stoney 448 I~ ~ '-~+fi ~ ~ ' ~ + r----rf f - ~ --~---r----- ~'i~-'~-j ,-"-ITT' I I I~ I~~~I,~~ I +~I ~ ~I + ~i ~ -NT 0 o dam width ~ ° ~ • ~0° 0 •o e°o ~41i 7NNi0II6H BAY d1iG il~,Tl~ i r~ I _ ~ F - , ~ ~ T I 446 'I~- ~L I ' i- I _ 1..+ 1 ! i t ~ i ~ I ~ i -iH T+,. ,~,Tt ~ , •-r-r-~~.I ~ I. 7._I~r ; + ~N `r4~o0~8dq, p0 ROCN d50 a~o0° ~aQ r ~1-~-1-1~ I r-~-~-~ I 444 7-,~_--~~. t -C-`~ i I I 1 I I, I ~ - - ~--1~, ~I. ~ ~ i I ~ iJ~~,~ ~ ~ ~ - ~ ~ I ~ ~I I . °D' (T° 50S SHALL ~ LARGER ° 9 4.0 x 'p' . ~ ~ THAN fi° (MIN.) DIR. ^~r~~0 • ~ ARN. ~ 1 1 po0~ iJO~~ as / Q' I _ I ~ . i- I 7 LE s L I I I tl t I I I C I I 442 ; i`"~-~ ` i ._i~ I + i _ ~ ~ ~ t t ~ ` ' ~ ~-:~1-i I _I 1 +t~-~++ 1 I I I li ~ - : + rbo • a~o j~ (~gx~(q~Oo• •O 44 'Y i J I t 1- . I J-1 J + ~ I• r i 4T 8 I~ ~r i~ ~ ~r- I~ I IrIJ r L.. a ~ I i ~ I 1 I ~ I l F I I i~ ~ ~ I I~~~ ~ ~ I, i~ I O i r_r_~ t ~ , ~1 r I i i CROOYES Nll CATCX t~ ~ T / RED. FERRIZER, MULCR ¢ • w,Q° ooa ° oa / ~ ~i t ~ ~ i I t ~91ti5-~ ~ I I I - ~ I I I III - III I ~I ~ ~ ~ + _ , + ~ ~T f ~ - { f I + 4 ~J-+ { + I i i~,--~--rl I ~ ' _ _ ~ ~ ' + ~ ~ t ~ I ~ I r„. + , AND DECwusE I •po a A° ~1 °.0 ' o. ~ ~ e~ ~ ~ °/1_x: i~ : ~ I ~~n ~ Int"~°~'~ I ~ 2 P1 I I ! is _ ~ ` ~ ~ ~ ~ - ~ ~ ~ t~ 436 i._~I_~-1i~~ ~..'-~._~if~~~Y~1~ a_~~l ~i_.t i_-_~-~~~~ ;_}~_i-~~..~.. i i~~ll !_r:I.,,~. ~ ~;~_f i ~ ',---r-;~~+,--1-I-~-r-~-}--t-I+~,,~~-F-~r' f~-I--~-*.-t_I-`~~~+-~--~-~ i / ~ ~ I II 434 . 1t t { 1 t-r-I~t-r± f ~ I t i f ; , : ; ~ I 1Tf!t' ~ ~ 1- ~ ' ~ ~ ~ ' DUR FURRO119 - - ~ / / \ 1~/ ~ CONT 1 PLAN ' ~ I~ ~ ~ ~------r' ~ tom' ~ I I - I r i ~ ~ ~I 432 ' L I~ E I{: ',~,I-- + ~ ~ ~ ~ I r I I ~ u. -I ~T ii i r '.t' iii 1,i ~i ~ --r-r~ G 'r-I-~ i ~T SURFACE i ePOr~g' TEMPORARY I SEDIMENT '-~-~-"---r-r-" r r--r+-~~ - I T i i ~ i I I i 1' fi i n I I 430 ~ 7-~t~ r i I r ~ t ~t ~rt"_" "~~rtr ~ i ~ G I:. 7 S T rt-~-r- r i I a ROUGHENING TRAP i NOTES: ~ I - -rr-T--t -<-a-~-~r~ ~ ~ ~ ~ ~ ~ IL B I r I-i-~ i a i l -----T---L ~ i i ~ ~ ~ I i 1 ~ A I I I I I it ~ 4 28 I I i i ~ ~ °"~0r°' 1. 'La' =LENGTH OF PPRON. pISTANCE 'Lo' SHALL BE 30' ~-~r-. 426 ~ ~ ~ ~ i ~ . ~ I , -N ~ ~ + + ~-1-Y-r~- ,1 + ' CONSTRUCTION SPECIFICATIONS 2. APRON SHALL BE SET AT A ZERO GRADE AND ALIGNED STRAIGHT.. THI x CONSTRUCTION SPECIFICATIONS 3. FILTER MATERIAL SHALL BE AN APPROVED FILTER FA~tIC WITH A 6 C (MIN.) I ~ , I I i ' 1 i~~ ~ ~ ~ ~ ~ ~ _ , I ! ~ ~ ~ I ~ ~ I ~ ~ _ I - I~ --~i,---- r'~ ' ! i ~ , 'ter ! ~ + + I _I + I ~ ~ 1~ ~ } r ~ + ~ + t rt~ + , F~~ ~ ' ~t ~ + 1--+ _ T~--~ , i ` -~-t-~-r±~ I-T i f I trt~ rTT~ I t 424 ! r t t-t } , i I ~ ~ I`~rt ~ 1, ~ i t 1 _ ' I- , a ~_t__~ ___~_~_~-T~~_~ i_ ~ _i III . ! _1 ' ' I~ + ; r; +-1=~ + ~1~i FILL SI GRADep GRAVEL LATER. 1. Clear, grub, and strip area of all vegetation and root ~ FILL SLOPES material, Remove all objectionable material. a T ~ ~r~ ~~T 4 , ~ ,+~r l . ~ i I i ~ + r r~T---~- ~ i `~C - r _r-~ _ N ~ 1_ ! I i i i I { I ' 1. Place fill slopes in lifts not to exceed 6 inches and 2. Ensure fill material is free of objectionable material. 17ATU~ '-Y I.1_.~ -l ~-±±~-I-i,...-r+ f F t ~ I-~ ~ ~ r~ I i 1 i m( 2. make sure each lift is properly compacted. Place fill in 6" lifts and machine compact ~i ENERGY Pr nnection between ri ra and soil b usin 2. Ensure that the face of the slope consists of loose, 3 oteci co p p y g ~ 420. un uncompacted fill 4 to 6 inches deep. DISSIPATOR filter fabric. Extend fabric across spillway foundation and c~ rn v M o 00 3. ri acv be 3. Groove using any appropriate implement that can sides to top of dam. ~ i; be safely operated on the slope: Do not make grooves 4, Clear pond area below dam for sediment cleanout, C 00 +D I~ M M M M M 1ec M M M d. d d d less than 3 inches deep or more than 15 inches apart. 5. All cut and fill slopes should be 2:1 or flatter. a ~ d ~ 4. 4, Do not blade or scrape the final slope face. 6. Ensure stone section has min. bottom wid{h of 3' with max side slopes of 2:1. CUT SI CUT SLOPES AND UNGRADED AREAS THAT NAVE BEEN 7, Ensure weir is level and constructed to grade, Q+pp 1 +00 2+00 3+00 CLEARI CLEARED AND GRUBBED 8. Material used in stone section should be well-graded 1. till 1. Roughen cut areas to shallow grooves by normal mixture of stone with d50 size of 9" and max size of 14". i ruse of a culti acker- 9. Ensure spillway extends past toe of embankment until tilling, disking, harrow ng, o p se' seeder. Make the final pass of any such tillage stable conditions are reached. Keep edges of scone outlet ~ ~ ~ ~ = im TI SCALE- 1 10~ HORIZONTAL SCALE 1 ~ 2. VER CAL implement on the contour. flush with surrounding ground and shape center to confine M..~ 2. Make grooves formed by such implements close outlet stream. to, together t0 inches} and not less thou 1 inch deep. 10. Direct emergency bypass to natural, stable areas. 3. Im 3. Excessive roughness is undesirable. 11. Stabilize embankment and all disturbed areas immed- Immediately seed and mulch roughened oreos to obtain lately offer construction, including embankment, emergency op optimum seed germination and growth. Periodically check spillway, above the sediment pool and downstream. th' on the seeded slopes for rills ~11Td washes. Fill these 12. Mark cleanout level in field. oreos slightly above the original grade, reseed and mi mulch as soon as possible. 3.3' 42"~ TRASH SCREEN 3" ANGLE IRON 3:1 SLOPE OR FLITTER 3.3 MAINTENANCE PLAN ~ INN OaIPACTED SqL 1. All erosion and sediment control practices will ~ gg' = , a be checked for stability and operation following SUPPORT BRACKETS FOR INN every runoff-producing rainfall but in no case less VALVE CRANK 3.3' . .~O than once every week. An needed repairs will be ~`~i",~'~~nGi , I r Y 30" RISER ANTI- ~ I~IE~I Ik~l I I I I I ri mode immediately to maintain dl practices as ~ ~ ~ ~ ~ I~~~I~I~II II I pI~J ~ I desi ed. i~Jlgl , I~I~I~gI ~ I~ 9n VORTEX 13' I~ 2. Sediment will be removed behind the sediment 9' IIIN --~?I fence when it becomes about 0.5' deep of the BAFFLES 3' TYP. fence. The sediment fence will be repaired as T necessary to maintain a barrier. TEMPORARY BERM DE AIL 3. Ensure temporary sediment trap Is cleared once 8' TOP VIEW sediment reaches cleanout mark. 4. All seeded oreos will be fertilized, reseeded os necessary according to specifications in the veg- etative plan to maintain a vigorous, dense, vegetative cover. NOTE: ANGLE IRON STRUCTURE TO BE ° ° CAST APPROXIMATELY 1' MIN INTO 1 MIN a , TtMPOAARY SEEDING ° THE RISER ANCHOR BLOCK. T W WITH RISER AND ° FRONT VIEW OP VIE d ° SUMMER (May 15 -Aug 15) ANTI-VORTEX BAFFLES CONCRETE BLOCK German millet 40 lblac FRONT VIEW FALL (Aug 15 -Dec 15) Aye (grain) 120 lblac WINTERIEARLY SPRING (Feb 1 -May 15j A T T Aye (grain) 120 lb/ac Korean lespedeza 50 lb/ac NTS NTS Lime 20D0 lblac 10-10-10 750 lblac straw 2000 lb/ac PERMANENT SEEDING 3' GRASS-LINED CHANNELS FILTER DIAPHRAGM-Use a fine Tall fescue 175.200 lb/ac D Kentucky bluegrass 20 LbraC sand and ravel a re ate W1 9 99 9 Rye 40 lb, ac 2x for fiter materials. 6„ Lime 4000 lbiac 10.10-10 fertilizer 1200 lb/ac i e sfi E PP =111~~11 straw 4000 lb/ac _ III=III= =i IIIi~ ALL OTHER SURFACES I I (-I 1' I-~~ Tall fescue 130 lblac Kobe lespedeia 10 Lb/ac Rye 40 lbiac Lime 4000 lblac H2 2x H1 10-10-10 fertilizer 1000 lb/ac straw 2000 1blac pipe ~ 12" 12" 6" W2 T N NTS FRONT NOTES: 1. ALL CONCRETE SHALL BE 4000 PSI MINIMUM. 'SI MINIMUM. GENERAL NOTES: 2. REINFORCEMENT STEEL SHALL MEET ASTM-A61 w 1, ONLY DISTURB CLEAR OR GRADE AREAS NECESSARY FOR CONSTRUCTION. ET ASTM-A615 GRADE 60 WITH 2 FLAG OR OTHERWISE DELINEATE AREAS NOT TO BE DISTURBED. EXCLUDE MINIMUM CLEARANCE. VEHICLES AND CONSTRUCTION EQUIPMENT FROM THESE AREAS TO PRESERVE NATURAL VEGETATION. 2. CLEAR AND GRUB AREAS TO BE FILLED TO REMOVE TREES, VEGETATION, MUCK, ROOTS, OR OTHER OBJECTIONABLE MATERIAL THAT WOULD AFFECT INSIDE PIPE ~ I W2 Hl H2 D E THE PLANTED STABILITY OF THE FILL, DIAMETER REINF. LBS. W1 ~ PI erF Fu I IN I CYFRC NnT Tn FXCFFf1 6" IN THICKNESS AND COMPACT THE 12"' 15"' 18 N0. 4 2060 44 64 2 64" 23" 42 1/2" 18 1/2" 27" LAYERS AS REQUIRED TO TO REDUCE EROSION, SLIPPAGE, SETTLEMENT, OR OTHER RELATED PROBLEMS. 21", 24" NO. 4 3100 50" 85" 3 85" 31" 56" 24" 33" 4. KEEP DIVERSIONS AND CHANNELS AND OTHER WATER CONVEYANCE MEASURES FREE OF SEDIMENT AT ALL TIMES, Om USE #6 REBAR J 27", 30", 36" NO. 4 5940 64" 108" 4 108" 41" 72" 36" 49" 5. ROUGHEN THE SURFACE OF ALL SLOPES DURING THE CONSTRUCTION OPERATION 6 O.C. WITH 2 1.5' 2 &A " " " " " TO RETAIN WATER, INCREASE INFILTRATION, AND FACILITATE VEGETATION SSOC1ateS CLEARANCE 42", 48" NO. 4 8040 79" 150" 5 150 52" 79 40 64 ESTABLISHMENT. Engineering, Inc. 1 L- " " " " 6. PERMANENTLY STABILIZE ALL GRADED AREAS IMMEDIATELY AFTER FINAL P.O. BOX 1787 54", 60", 72 N0. 4, NO. 5 16000 105" 161 6 161 60 9O 48 90 GRADING IS COMPLETED ON EACH AREA. APPLY TEMPORARY MEASURES ON ALL GRADED AREAS WHEN WORK IS TO BE INTERRUPTED OR DELAYED FOR 15 SHELBY, N.C. 28151 WORKING DAYS OR 90 CALENDAR DAYS. 704-484-3778 ~RETE HEADWALL 54 PRECAST CONCRETE HE. USE 4000 PSI HIGH EARLY DATO 06-11-01 STRENGTH CONCRETE 4" CONCRETE SPILLWAY THICK NTS MAAWM NO. 01023 SHEET 2 OF 2 r...--,-- . ~ _ - - - r _ _ _ _ ~ _ carry rip-rap up ~ sides of spillway `,,~'~~~i~i~ihr, 470 T ~ r i rr~-~-r-f-'-~-T i I i' I i ~ ~ I I I I r-rr-r i = ~ ~ ~ I iop of berm ~ washed stone 2 ~ \ ~ ~ Ci~ A ! o ew ion a s ormwa er 1' freeboard min 4, • ~I~ ~T I ~ ~ tom, Tel T?T~T~~i I ~ ~ _ ICI I IIII I fll II II I~ I I I I I I ~ ~ I I i I I I i~ I I I I- ~ I t~ ~+H-~-~T I,~-,-,-r----~~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ i ~ ~ - ~ ~ - ~ z' ~ ~ ~ `P' 468 I ~-I-,~ -I-~-I--~~ I r~ I I~ ~ I I~-r-T-rr;T1 ~ ~ j i i i I ~ i i I I I i ~ i i i I I I ~ f ,I ~I ~ III ~ I ~ I IIIIII III ~ ~ ~ I I I.I.. rill ~ II'~~ I I I - ~ ,,1 ® m 9 - ~ 1 _ ~ i ® ~ \Y + 3' ,mot E 466 I ~ I ~I ~ l~ VIII _ I_lil Ililll i~ ~_I! ! II ~I~ lil I i I ~Ilal~ I gill 'til tl ~-~~r, t ~ --i--I-- ~ t rt r I~ I fit1-~~I - - I~l~ ' H ~ i ~ ~ (i t t fit-r ~r T+ 7 1- i Crt i + ~-+-+-i-+-~-+1~ I. I t I i I i i I ~ + . I - o 9LJ O Off' _ 464 I i I I f I I I I i I I 1 1 I I I 1 1 1 1 1 ~ II I I , I I I t it l_ 11-i Z , I~ ~ I~~ ~ I i I I I ~ ~ I ~ r I I I I l l ~ I I I I I I I ~ I I II I I I , ~ , ~ i I ® 1., i m ~ o e o I ~-rap d50 = 9' 462 I, ~ ~ ~ I ~ I, I I ~ ~ ~ - I~ ~ ~ r-~- ~ I ~ t-~-~ ; I 1-~-~-~t ' I I I ~ I ~ I I r I I I I 1 I I~-r-rt ('~~Iiil IIII II I~ ,iiIIII~I"'~it~r!I~ ~ I I IIII~!II~ I I ~ IIII II IIII iIi i I ~T?-i-1-??~l+ ~ I maxirnum level of G'!NE• ~1;• I in,~aouG wrx wcHSatr ur ~i key in bottom layer edim~t collected ~ ~ um aae+ t~ s<ovc asa~noEs 460. ~ ~ ~ ~ ~ ,1 ~---r-rt-, ~ r I ~ ~ I ~ ~ I I ~ ~ I I III ~ I ~t I I I ~ ~ I I I ; I, ~ ~-t~~~ I ~ ~ ~ i_ _ ~-l-L:--~- ,-i-a ._J_ ~ ~~-(--~-,-r--G-++-r + a ~ v ~ I i ! I 1 u ~ ~ , ~ ,_I ~ t- ~ ~ ,i,1 ~II~i( ~ ,II I i GI-iIiIII,'; ' 1I{I_ i GROOVES MMT MWL GIiCH 50D, ~ ~ i uuairi 7xie"n"i trii5 of rip-rap ' ~ O \ w~,ru µo RmucE me+osf. level is reached ' h ~ ~ ~ r ~ i ~ ~ 4581'1 I I,,'ai!~ I 1~~li.l~ ~-1- 1'lyda`u~-I'~I1 1- ~ll I ~ IIIIIIII~I ~j~~lI~III~II~II~II~ I ~ It.a 1 { _,I~I 111 ,i ~-~I ~ Iii I " 1 1 I ~ I_ II I C I L L I ~_11 ~ I II I ~i a.~~~1~~-.. ~ I I I I i i ~ ~ ~ ~ I i l i l i t I l i~~ i l i l i i i_ i i ~ ~ ~ SBCTION THROUGH BASIN AND FIITBR ~ 456 , ~ ~I , ~ I ~ ~ ~ ~T;~ I ~ ~ , ~ I I ~ I ~ ~ I ~ I ~ ~ ~ -I i _C. C ~ ~ I I ~ I I ~ i ~ r t-~-I~±~ I Irt t 9 11 „ pc ~ ~ i I I I ill I I I I II f III, I I I I I r tli-rrllirl t-~ ~I ' + ' I-~ I ~ i ~ -1 I_x + i ~ ~ } } ~ I ~ I f f fi+~ I I corn r' -ra u r 1~ T~~NG ~ ~ sides of spillway 454 , ' I-' { i fij~ ~ rt ~ 1-~-I-I-~ t ~ ~ f ~ L~ t 4 ~ ~ I ~ i - ~ ~ _ ! 1 t ~ _!-t~ ~h ' -1 ~ ~ ~ i;! f I. f i i i t , 1 1 ' I_, I ~ I ! I ~ I' I i I I I 1 1 1 _ --1 1-i-I I I I' I I I I I I' I l r t i i. ~ I ' .:,-T- ' ' _ ~ ~ _ _ - ~ - - - - - 1 f ~f ~ 1 f i ~ f j ~l Q`~ = 9" ~ ~ np-rap i ~~I~i ? ~ I rt ' (t ~ I I ~ ~ i l -1 ~ (I ~ ! I I H I I ~ ~ i i i ~~a 1 ~ 1-:~ ~ ~1 1~~ i ~ ~ 1~~1 ~ ~ . I i ~ 4 ~ ~ ~ i 452, I; I~, ,;I i tin ~e II I I ~ I~ ~ F.. I j I t-~ i t r. l-.j~L~-~--~- i i i, t i I~-t I f ~ i i I I I i I~ _~`~~I i I f-i t~-F I I I t-_,-f_. --I--~-t-t--~- t 1....-, ~ i t o I, I I i i i i i I I I I i i +-t t-t-~t-t -I- i--~!-~t`-~-I -~-}1 1 I ~ ~ 1' freeboard mi t ~?tm,'~C~r'~(Cf~,"il'd~aF3v~ 450 ~ - i I i i I i I fTl ~~-T~ ~ I - - ~ ~ I ~ ~ I { l ~.1__~ i.~ L ~ I I' " i ~ I l i i I I' I~ I i~ i i i I i1 1~ I I I i I~ ~t'i ~ t I ' I i I i I l i i I I I~ I i ~I 3' MIN. /5 washed stoney ~:1 III I ~ ~ I 4481 I I I i i i I I I i~~ ' I i ( i I I I C I rl n li i _ I I 1 I I ~-1-1 11_~ ' I I I h~I i i I I y I ._-L'-1~ -H_ ~ . ~ ~ I ' i i a~ i I I LJ 1 ~ I t l ~ I _ I I I ~ i v `1 ~ j 2:1 SLOPE 446 I ~ f ± ~ . I r { I ~ + }I.-- ~ t r I ~ ~ 1 , , -t E t I ~ t- ~ I- ; ~ ~ I~ 11 .I l r t f~~3 I I ~ I# l a I_ ;11.~ I r ~ '-~i ~ 1 1 ~I I ~ ~ ~ - ~ I I -I~ ~j j r 1 { ~ ~ r? ~ I ~ I I~ it C i { i r I I I i l( l f I ~ I I 50 t"r 8~ ~ ~ dam width i , ..1 ~ SECTION THROUCT3 BERM ANB FILTER I 444 f ~ ~fil~ I ~ II ~ ~I I t-~ 7-i i - I ~ ~ ~ i I I i I I ~ ~ , ~ ~ ~ ~ ~ I fi I 1- i t I I I I I I I ~~~I I i I I I I I I I I i I i I . r' I- I I I I I I 442 I I ~ I ' , F ~ I , I a { ~ , i ~ 'I ~ { ~ I ~ I ~ I ~ ~ ~ i' ~ ~ ~1 ~ ~ I I { ~ - _I ~ ~ I f ~ I ~ I I ~ ~ I ~ I r i I ~ i I ~ ; i I ~ ~ l ~ l ~ I i ~ ~ ~ I i I ~ ~ ~ ~ I i I T r1LE I~rt I II i I~~~ i I I I ~ ~ i ~ ~ i ~ I ~ ~ I I_ ~ ~ ~ I I ~ I ~ ~ ~ I _t ~ , I a ~u I I I ~~a- I' I'IIIII~III~I I II VIII ~ - ~.I~ I I. ~~;~;,Ifi1~I IIIIIIi ll~~~lli~lllll ~I ~ , ~w~,a ~ VIII I ~i ALL I ~ 1- ~ ~ ~ I j I I t s e i ~~II ~ I I J , -t-t ~ ~l ' ~ y-~-~-I-~~ 440 + ~ { I k f ~-I A a ( ~ , r ~ ~ # I~-+ ~ r r r ~ ~ • I ~ 111 ~ Iz 1 III I ~ ~ ~ I (-*-_j ' {-J ~ri-~ T I T I I i I ~ ~ T1._~ 7-r1-~---i-r-r-~- }-I i I ~ i I"7 I ~ ~ ~ i ~ T~~ ~ I ( ~I I i i ~ I I ~~17_ ~ ~t . (-s, ~r . ~ ! i I I f ~ i f l a 438 rl V I I I I r i s _ i Ii~il-IG 1I _I__I I i { i ~ I ) -I r I I r I~ ~ i_rt I GRDavES Net GTCH ~ i~ 1 I n~ , wKa+. _ ~r I I' -f t T i I i l l 1~~ 3• i ~ I. i I ~ 2 ~ I I I 1 I - L- I- I ~ ~ I- ~ I 436 ~ ~_L,-I I ~-1-T++~-i--~-+-'-+ I ~ F I r_I - _ _ ~ I ~ , , , , , ~ -~-I, I + - I l i a ~ ~ I I I ICI , ,!L,+, ~ 1,,r~ ~ I- I i I I I I I I I I I i ~ } 1 + Rua a i °o ~ ~ of /~7h6/~ jp, ~ l i l I I I ~ ~ ~ I C I 1 LI ~ ~ ~ ~ I I a 434 ;--r-r-r ;~-r T -r- ~ ~ ~1~ ~ ~1rt. ~ _ ~ I I %i XI ~ ~ ~ ~ f " i i i r ~~~I ~rt I ~ II -i .I T~,_ ~ I,r~l I -I- "~h ` Mi • i~ ~ i / ~ t-~ ~ { ~ ' II ~ I ~I~I~ ~ ~ ~ ~,I ~~I II II II I i~li ~ I i I 432 ~ I t( ~ ~ ~ I ~ ~ I ~ I ~ .I ~ ~ I ~ T ,,Ir _ II I IIII ~I I ~ , CONTOUR FURR01fS ~ ~ ~ d5o = s° TEMPORARY I-+++--r~ t~+-I-~-~ I I ~ I ~ fi i I I I i ~ I~ ,_l~l- I~ ~ 1_ II~ - 430 ~ ~ ~ a ~ _I ~ ~ ~ I I I ~ I , ~ ,i_ii .~._i. i. rt~ l 1 1 1 I Ii I l i l i ~ I ~ ~ I I ~ I ~ I ~ _ 1I r~i i,i t I I I ITi I i~ r} I-+__ I I i i l 1 I i I I i I i i ~t-t - - "1-t-t~-t-1~ ~t~-t-t-f-~'-~rt 1 r - SURFACE rip_rap I - ; SEDIMENT n ROUGHENING ' eQLSrECrIVE vlErr ~ TRAP I '-t 428 I I I I I ~ IIII rtllli II ~ I I ~ I I I I - , _ , l _ J , ~+-r t--rfi--r- --r t+ ~-t J-J----,, r ~r1 -r ~ -r~ t I ~ t' I r-+-I-H L+~-~~ jt fi I C j~ i i- r I ' I _~_i_ ~ I I I I I i i i ~ ~ t i 11.f ~~-~~~_~~_I i~ 426 ~ ~ I ~ ~ , ~ ~ ~ I ~ ~ I E ~ I ~ I . 1-fl I -i i y I I i I L I i l l I I I I }-i ~ I I I I I I I~ I _ ~ ~ ,II I i _ ~i ~ I I ~ I~~ ~ ~ z- I ~ ~ ~ I I I-I-+-~-I F'-~ ~ ~ ~ iHrt ~~I I T ~ i ~ ~ ~ ~ ; i , I i , ~ I I~1~1 424 ~ t I ~ r~ I I I I. ~ I I,, I I I II I i I I I, + rH I I I ~-1-~~~-t ~ ~ ~--t-IfiPt1-i1 I I~ fi l II ~ ~ t I- -I I I I _i - -I I _ I I I I ~ I I ~ I I I I i ~ i ~ ~ I ~I (I I I~ ~ I ~ ~ I I I - i I I I I y l i I I I I I ~ i I t i i ~ ~ I i ~ ~ ~ N CONSTRUCTION SPECIFICATIONS CONSTRUCTION SPECIFICATIONS R r I t ~~t I ! ' ,rte ~ ~ ~ ~ 1 ~ ~ I Y I ~ - 1 ~ t_ 1 ~ ~ ~ ~ I ~1 III i I + ~ ~r 3 ' ~ - i -r+~ ~ ~-1 -i-+! ~ ~ , - I I-~ i I ~ 422. I fi I I , ~ ~ I~ ~ I I l i I~ t1-1 f l 1-t~ t ~ I I r (1 f t 1 { t t-I ~ ~ I t r FILL SLOPES 1. Clear, grub, and strip area of all vegetation and root material. Remove all objectionable material. T~ , I L I F ~ I + . ~ ~ . I I I~ , I ~ a ' fi r~ ~ , ~-r;- E I I ; J I I D~TU~1~ ~LC[~ I_~ ~ I ~ ~ ~ ~ , ~L ~ ~ i ~ I{ I I I I I I I„ 1~ ~ i 1 I i i I 1 i I I I I I I r I I I I ~ I t I ~_i_t_i _~_LS__~l i~ i(-i- I I_Lfi i i i i- ~ 1 J, I-_I i i _i_ I. I_I_~ i i t_~_i ~ 1 1. Place fill slopes in lifts not to exceed 6 inches and 2. Ensure fill materiel ie frar Of nhjer±innable material. L d20. G~ ~ ~ ; j ~ ~ i I I i it make sure each lift is properly compacted. Place fill in 6" lifts and machine compact. r 2. Ensure that the face of the slope consists of loose, 3. Protect connection between riprap and soil by using ~ 1=. I rn11 ~ of of o. I .I 'i ' uncompacted fill 4 to 6 inches deep. filter fabric. Extend fabric across spillway foundation and fa 3. Groove using any appropriate implement that can sides to top of dam. ~ M NI N, 0~ ~D'. t~ cfl, BFI d' III d' d'i ~ r be safely operated on the slope. Do not make grooves 4. Clear pond area below dam for sediment cleanout. i less than 3 inches deep or more than 15 inches apart. 5. All cut and fill slopes should be 2:1 or flatter. 4. Do not blade or scrape the final slope face. 6. Ensure stone section has min. bottom width of 3' with I I ~ ~ - I - - ~ max side slopes of z: 1. 0+00 1+00 2+00 3+00 CUT SLOPES AND UNGRADED AREAS THAT HAVE BEEN 7, Ensure weir is level and constructed to grade. CLEARED AND GRUBBED S. Material used in stone section should be well-graded re of st 1. Roughen cut areas to shallow grooves by normal mixtu one with d50 size of 9 and max size of 14 . tilling, disking, harrowing, or use of a cultipacker- 9. Ensure spillway extends post tae of embankment until a seeder. Make the final pass of any such tillage stable conditions are reached. Keep edges of stone outlet implement on the contour. flush with surrounding ground and shape center to confine F..~ VERTICAL GALE- 1' - 1~ HORIIANTAL SCALE 1' - ~ 2. "lake grooves formed by such imY!pme;,±~ c!ase outlet stream. together 10 inches) and not less than 1 inch deep. 10. Direct emergency bypass to natural, stable areas. 3. Excessive roughness is undesirable. 11. Stabilize embankment and all disturbed areas immed- Immediately seed and mulch roughened areas to obtain lately after construction, including embankment, emergency optimum seed germination and growth. Periodically check spillway, above the sediment pool and downstream. the seeded slopes for rills and washes. Fill these 12. Mark cleanout level in field. areas slightly above the original grade, reseed and mulch as soon as possible. 3.3' 2"~ TRASH SCREEN 3" ANGLE IRON , 3.3 3:1 SLOPE OR FL11T1ER MAINTENANCE PLAN 3' MIN OOMPACTED S~ 1. All erosion and sediment control practices will SUPPORT BRACKETS FOR VALVE CRANK 3.3' ALL 36' be checked for stability and operation following MNi every runoff-producing rainfall but in no case less ~ than once ever week. An needed repairs will be r~ i, Y Y 30" RISER ANTI- ~u~ - made immediately to maintain all practices as r - ` i~yitil~~ , i~'' designed. VORTEX 13' sir 2. Sediment will be removed behind the sediment 9' MIN BAFFLES , 3 TYP. fence when it becomes about 0.5' deep at the fence. The sediment fence will be repaired as 8' TE necessary to maintain a barrier. MPORARY BERM DETAIL 3. Ensure tem orar sediment trap is cleared once TOP VIEW P Y sediment reaches cleanout mark. - 4. Aii seeded areas will be fertilized, reseeded as necessary according to specifications in the veg- etative plan to maintain a vigorous, dense, vegetative cover. NOTE: ANGLE IRON STRUCTURE TO BE 1' MIN ~ a a a CAST APPROXIMATELY 1' MIN INTO a THE RISER ANCHOR BLOCK. TEMPORARY SEEDING ~ n e a FRONT VIEW TOP VIEW WITH RISER AND SUMMER (flay 15 -Aug 15) ANTI-VORTEX BAFFLES CONCRETE BLOCK German millet 40 lb/ac FRONT VIEW FALL (Aug 15 -Dec 15) Rye (grainy 120 lblac WINTFR/EARLY SPRING (Feb 1 -May 15) Rye (grain) 120 lblac Korean lespedeza 50 lb/ac NTS NTS Lime 2000 lblac 10-10 10 750 lb/ac straw 2D00 lblac PERMANENT SEEDING 3' GRASS-LINED CHANNELS FILTER DIAPHRAGM-Use a fine W1 Ta11 fescue 175-200 lbiac p Kentucky bluegrass 20 lblac sand and gravel aggregate Zx for Titer materials. Rye d0 lbiac pipe ~ E 6" Lime 4000 lblac ij'~I_ 10-10-10 fertilizer 1200 lblac I r=l ~ straw 4000 16 f ac - = ALL OTHER SURFACES 1' Tall fescue 130 lb/ac Kobe lespedeza 1D lbtac Rye 40 lb/ac H2 Lime 4000 lblac 2x H1 i1 10-10 10 fertilizer 1000 lbiac straw 2000 16lac pipe ~ t"'1 12" 2" 12" r,r, W2 6" NTS FRONT ~(QTES: 1. ALL CONCRETE SHALL BE 4000 PSI MINIMI 00 PSI MINIMUM. GENERAL NOTES: 2. REINFORCEMENT STEEL SHALL MEET ASTM• _ MEET ASTM-A615 GRADE 60 WITii 2" 1. ONLY DISTURB CLEAR OR GRADE AREAS NECESSARY FOR CONSTRUCTION. MINIMUM CLEARANCE. FLAG OR OTHERWISE DELINEATE AREAS NOT TO BE DISTURBED. EXCLUDE VEHICLES AND CONSTRUCTION EQUIPMENT FROM THESE AREAS TO PRESERVE NATURAL VEGETATION. INSIDE PIPE nrwr ~ n~ „M 2. CLEAR AND GRUB AREAS TO BE FILLED TO REMOVE TREES, VEGETATION, ..M u(n r r~ r rn ~ r MUCK, ROOTS, OR OTHER OBJECTIONABLE MATERIAL THAT WOULD AFFECT ~ DIAMETER RCOir. Loa wl nc wl nc ni nc u r- THE PLANTED STABILITY OF THE FILL. 60 12", 15", 18" NO. 4 2060 44" 64" 3. PLACE FILL IN LAYERS NOT TO EXCEED 6" IN THICKNESS AND COMPACT THE 44" 64" 23" 42 1/2-18 1/2- 27" LAYERS AS REQUIRED TO TO REDUCE EROSION, SLIPPAGE, SETTLEMENT, OR „ " » " " OTHER RELATED PROBLEMS. 21% 24" NO. 4 3100 50" 85" 50 85" 31 56 24 33* 4. KEEP DIVERSIONS AND CHANNELS AND OTHER WATER CONVEYANCE MEASURES USE #6 REBAR 27" 30" 36" NO. 4 5940 " „ " FREE OF SEDIMENT AT ALL TIMES, Odom 64 108 41 72 36 49 5. ROUGHEN THE SURFACE OF ALL SLOPES DURING THE CONSTRUCTION OPERATION 6"0. C. WITH 2 1.5 64 108 `LCLEARANCE 42", 48" NO. 4 8040 79" 150" „ " TO RETAIN WATER, INCREASE INFILTRATION, AND FACILITATE VEGETATION pEing6ineering, SSOCIatCS 79" 150 52 79 40" 64" ESTABLISHMENT. Inc. " " " " " 6. PERMANENTLY STABILIZE ALL GRADED AREAS IMMEDIATELY AFTER FINAL 1Q5 161 6O 9O 48 9O P.O. BOX 1787 60", 72" NO. 4, NO. 5 16000 105" 161 54 GRADING IS COMPLETED ON EACH AREA. APPLY TEMPORARY MEASURES ON ALL GRADED AREAS WHEN WORK IS TO BE INTERRUPTED OR DELAYED FOR 15 SHELBY, N.C. 28151 PRECAST CONCRETE WRETE HEADWALL WORKING DAYS OR 90 CALENDAR DAYS. 704-484-3778 USE 4000 PSI HIGH EARLY 54' DAM 06-11-01 STRENGTH CONCRETE 4" CONCRETE SPILLWAY THICK NTS DRAWIM NO 01023 SHEET 2 OF 2 __1 / o -rap~P \ ~iuui~ r 8P Y ` tt r 'iII t a„ 'i t of Germ ~ washed stone 2 ~ ~ G.~h? rrrr ew ion o s arm er 1' freebaad min i ~ - 04 s 470 , , , ~ T ; ri ' ~ I ! ~T I ~i i ~ I ~ I ~ _ i , , N~~~~r I 1 I , }_I ~~,-,--r- ~r { I ~--j~*I~ ~ I, i I I l ~ I !~i 1-1~~ i IT~j i 1 I~-~r-r ! .r-~-~ T-,-r-r-~~ i I l ® q a - _ r t e _ j {J-!-~~' I ~T i ~ ~ ~ ' ~ ~ i { ~ ~ r I ~-~-1 } 1 _ L l ~j ITT ~ I ! ~ ! ! I ! I I 468 ~ ~ ~ ~ L ~ ~ ~ ~ ~ 1 . ~ ! ~ ~ ~ f ~ I I ! i ~L I L , ~ - ~ ~ _ ~ , ' ` ~ ~ ' _ ~a - i ! ~ I ' i I I ! i ~ I ! i, ! I ! ~ i~ ! I i I _i__i i i____'..I ! i ~ i ~ ! i ~ i i ~ ~ I i-. _!_{.I ~ } -I-~ ~~--1... i I + '+-~-L-L~ ~ a ~ !~i ~ IIi!>I~I ( I _II i~~II~I~t ,T 7 ~ I ~ II ! , 466 {~l I ~ I ! I I f ~ I I i ? , ; ~ I I , I ~ ~ ~ ; ~ ~ ! ! ; ~ ; ! ! f ! I ~ , i . I , I I ! ! ! ! ~ ~ ~ I ~ ~ ! !~--L-~ rl- t !~-~--r -_t + !-r {I~" ,~j ~l~ I I~-r--~7 ~i ! -fir I 'i~'"-r~ I iI 'I I ! rT~~rt 1 7rt~ ~ I I i ' ' ly-~.- ! --:r~1~- 'y I I ~ , : - , ! ~ I :--~-~-r~-~ ~ ~-r-~-`-~ 464 , '~'1' ~-III IT I ! i I !I I I i~~{i I I m i I i d~ = 9" - ~ ° m ~ ~-raP ~ d~ j E~. '~1.1-l.' i '1 ~ ill I I ~ I' I i i I i E-+: -}-~-~Y r,-I+r--r ~ ~ ~ ~ ~ ~ ~ r iii i i ! i ! I ! ! 1i I!~ 1 462 ~ ~ I I ! I I _ ~ ! i ~ i -1-, ~ ~ ~ I ~ ~ I ! i ! I - - ~-+-~-r~ -~-r ! ~ maximum kvd of 'msaaaG' r~nx xr ur anent c I key m batten kybr ' `Q jT 0 i ed d eCted ~ ~ ® of ri -ra r ~ ilia down THE SLOPE PIIOrgES li D P Y ~ ~ ! i~~ i i t i I_ ! ~ I i i i i~l i I t i I _ I l_ -~~-~-I~- I~-(~-~} I I I! V I I I _ I _ ! r-t r-r-!~-,~~ ~ r~-r-~-~-~~!-~+~-~-rfir F r+~-r ~ I I I I I f I, 1 i~`-r-r-~+-~ fi I fit- ~ -F-11 460 - i, r ~ ~ ~ I~ ~ t I ~ ~ r ~ r: ~ i I~ 1-~~ ~ 11,! I I! r-t t!: I i I - _ ~ ~ , ._._~_~l a ~ , . , , , _ i ~ a j caoo~s not wxl cnta~ sem, ~ n~ when this ~ ~ rr, I~ ~ atrcw- an aEOL~ auHarF. j ~ lever is reached t ~ ~ i i i t i ~ ~ ~ n'~/ j I i SRGTION THROUGH BASIN AND FII,TER v I I ! ~ t ' I I ! I i.' I+ , 1 i G_I ~ i i i~ i ~_(_F_ ~ ! I III I I;- i i-~-, i ~ , C j i ~ 'T~' ! I ~ I I~ I- I I I I t I I ~ 458 ~ i ~~~1 I I ! ~ I I I I I I ! _ i ! I~ 1 I I!! ~ I~ i i i i I I F-~ -.-rT'-r-' ~-;~~+-r -F ~ I~ ~ ~ ~ i i i ~ ~ I I i t t I I I~ I I I i ~ r ~ ~ I I I ~ I i i ~ ~ i I carry r~-rapp up { -t-` ~ ~ ~ ~ ~ I r l I ! I i t ~ ~ I 456 I~ ~ ~ ~ , t, o. ! ~ 1~~ I ~ ! ! -nl i } { ! ! , ~ I~ I I ~ I ! ! -I ! ! ~ ! ! ! ! is ~ ~ ~ I ~ TRACIQNG i I sides of spllway i d50 = 9' 454~~ ~ - ~ ~ I`I I II I ! 1{i! -I ~I II If i I IIIII'I'III~~iII 1 I l i ~ I I I I ~ i I ~ h17 IIII i I' I I I C I I I I I I I I I' I _ _ ~ i~ ~ ~ rip-rap I i , '_(_-1_I I i _a t ~ ' ~ ~ I I ~-r I I ~ ~ ! -I_! ~ ~ ~ ~ I ! l..l- ! i I !i ~-~--L-~-~-~! 452 C -T~j j ! t i i i i : i! i I i 1"~ i i i A 'B I. 1 1 1 1 1 1 II ~J~I ~ I ~ I ~ i ! I 1' ! I - I i I~ _i I i I {_I ~ I I f ~ I 1' freeboard mi ' ~-~-ri~-j_-...~ ~ , , . t-~~~ -t±-~~ I -r ! 1 I~ - - ii t i . j ' T ~ ! ~ t-~~I ~ ~ .-~t-t--. ~ ~ ~ ! ~ 1+-;~~~{--1--~ { ~ } -r r+-~~ t ~ + ! ~ ~ ! I ~ ~ ~ ~ ~ ~ ~ 1-1~~ ~ ~ _ 450 r-F-± } a--~ ~Ft-~ ~ I , t ~ ~t 1 ~V I ~I l 3' MIN. 1_`_ I i15 washed stone-~ I I, ~i i i i - ~ ~ I` i 1 I ~ I i i i t + I I n I I ! III I I I ! I ~ I I i I I I I ~ I I I I I 448 ~ ~--r,-) _ ~ I ' i i ! I -~I~iT i i t-~F~~ ' ~ ' , I ~ { I I~~ ~L ~ ! . ~ t I ! ~ ; 1 ~ :1 L E - ~ ~ tr~~r~ J~ I r _ I 1 ~ ! ~ I I ~ i! f ~ 1 ~r- I I i .i. 1~ 446 I I ~ 1 I ~ ~ 1 --r- r fi I 30 ~ 6. , dam width - ~ ~ SECTION THROUGH BERM AND FILTER rT i a ~ r~l~l i ~ ~ I 444: I~r !i!~I-~~~IiI~' ii !li{Ei;I~Ii 4 fit II!!.n rr III'_II i I I i, i ,+~~I ~ j ~ _ ~ L_{_f} t ~ii IIl_.;_!_!1 I _i I, ~ I-r I T i_ ~ 1 _ ~-r ~ l l l; I - + I I ! , III „`~rt!I , Ijlll'i j IIII II ~I ~ I i- -I I - ~ 442 ~ t I +~-I~ I t ~ 1 ~ ~ ~ I , { ~ I ! I ~ r ~-r ~ L ~ -r-{ - , - T' ' ! i I ! I r ~ , ~ , ~ 1-1 I (t~ t 1 rt I r t ~ t ~ ~ r ~ -~r-~;-,-r ~-~-~-1--~ ~ I ~ II I , i t 'r 440 I-~~-~- ~-~-r~ . , ~ ~ ~ ~ ' i ! I T i ' ; i~ -t! - 11 I i t ! I ! I I ~ I ! _ i ! ! _ ! ! ! ! _ ! t . _ I ! t I ~ e 1 ~ I rt III fi - I I ! III 8 ! 43 I i I i { ~ { ! GROaJES MRL areH I j d~~ ~ 1 j s®, . wwcH. I~ ~nl RAMFlLL NO DECREASE ~ / A! 2 s ~ !u . ~ f 436 s - - - ~ i-~ ~ ~ : ~ ~ RUNDFF. I~ 1 ~nh~ lo, ~ , ~ !ill I!~t r~Ct" 434 r1 ~C ~ I 1 C : I Y- I f 1 f C1-1~j 1 1 ~ ~X I i- ; ~ I ~ / I ~ ~ ~ ~ 11 I ' ' - ~ r-r ~ ~ ~ ~ 32 7-I ~ I I I _ 4 ~ ' Y~r -I ~ ~ ' ~ ;-r r-~ ' ! ' I-r'r ~ ~ ~ ~ C 1~ ~ ~ ~ I r*~l ~r T CONTOUR FURROIIS d5a = 9' TEMPORARY i ~ ~ , ;--ter ~ f k--~-rTrt-, a-F + ~ +-~~-1-,~-rT j ' ~ ~ ?~'T ! ~ f ~-1 + I I r~-± ~ -f-N-~-7-F+- ; , r ~ I ~ ~ ' ~ r { t~ ~ ~ I 430 - i--~-!-4-+~-~-~-! I ~-,~r~ ! ~ ! ~ ~'t'-_! -t~ ! ! r ~ ~ i -1 ~ ! ! ! ! i i f -fah II SURFACE SEDIMENT ROUGHENING ~ ~ ~ i ~ ~ I~ ~ ! I - t 1 c*-' I r-f rr t--~rt . i~ Irt" ~ I~ ~ i t I I I ! ! ~ I ~ I I i I l i I! 428 _ !h---~- ~ r rte' I T } - PERSPECTIVE VIEIf TRAP ! ' ~ 426 IF-+~ ~ r-- y-~,----`rt + ~ ! I ~ v i , t ~ _!-_~_i. i~~.J r ~ ~ ~,I , , CONSTRUCTION SPECIFICATIONS CONSTRUCTION SPECIFICATIONS 424 ~-rr ~ ~I {~1-1-,' I ~ ~ ~ ~ fi ~ ~ , I ~ ~ I , , i~_ ~ _ i-t- ~ , ~ t Wit, r j.i.}.~ r I, ' -i fi-~- - - t rte-(-I ?-1-1- ~ ~ ~ t ± ~ -{-I"~t ~ ~ I ~ ~~~t~.~ ~ i ( I ~-I~~-j-?-±-1--r~~t-; ~ ~T I i i _ i I_ ! i ! ~ + i-+ ~ ~ ~ ~-r-t + t ~ 'F i FILL SLOPES 1. Clear, grub, and strip area of all vegetation and root ~ material. Remove all objectionable material. 422 Crhf ~'LEf " ~ t ~ ~-~-r I~- ~ ~ i- ~ ~ ~ - - ~ I ~ r r ~ ! ! 1 1 T_ ~ ~ 1~ I Li I_~ I I I I_ LI i LI_~ Ll I I LPL ~ I+_I DAT ,r }-~-I rte` I I i i! _L 1~ L I I LL I' 1 i I i I J~ -r r.1 1 1111 I{-~ i, } _1~ ~ I I I 1_ ~ ~ I I L 1~ I I l L1~_. 1 1 1~ -r . IJ 1 ~ , L~ i I LJ_l ~ L ~t ~ I-I 1. Place 611 slopes in lifts not to exceed 6 inches and 2. Ensure fill materia! is free of objectionable material. make sure each lift is properly compacted. Place fill in 6" lifts and machine compact. g ~ X20. Gtr ~ I I i I 2. Ensure that the face of the slope consists of loose, 3. Protect connection between riprap and soil by using I o _ olo rn'I ~ ~I~ I uncompacted fill 4 to 6 inches deep. filter fabric. Extend fabric across spillway foundation and r, 3. Groove using any appropriate implement that can sides to top of dam. ~ r~ I ~I, ~ N NI III ~I t\~ ~I 'i i dl r0 Mi be safely operated on the slope. Do not make grooves 4. Clear pond area below dam for sediment cleanout. ~ ll less than 3 inches deep or more than 15 inches sport. 5. All cut and 611 slopes should be 2:1 or flatter. 4. Do not blade or scrape the final slope face. 6. Ensure stone section has min. bottom width of 3' with I i i I _ - - _ I I - ~i _ _ - 0+00 1+00 2+00 3+00 CUT SLOPES AND UNGRADED AREAS THAT HAVE BEEN max side slopes of 2: 1. 7. Ensure weer is level and constructed to grade. CLEARED AND GRUBBED 8. Material used in stone section should be well-graded - 1 1. Roughen cut areas to shallow grooves by normal mixture of stone with d50 size of 9" and max size of 14°. F"~1 tillin , diskin , harrowin , or use of a culti acker- 9. Ensure spillway extends post toe of embankment until a g g g p stable conditions are reached. Keep edges of stone outlet seeder. Make the final pass of any such tillage implement on the contour. flush with surrounding ground and shape center to confine H ~ll~!'fLr ~7M!"!Ld'i 2. Make grooves formed by such implements close outlet stream. together 10 inches) and not less than 1 inch deep. 1D. Direct emergency bypass to natural, stable areas. 3. Excessive roughness is undesirable. 11. Stabilize embankment and all disturbed areas immed- Immediately seed and mulch roughened areas to obtain iotely after construction, including embankment, emergency optimum seed germination and growth. Periodically check spillway, above the sediment pool and downstream. the seeded slopes for rills and washes. Fill these 12. Mark cleanout level in field. areas slightly above the original grade, reseed and mulch as soon as possible. 3.3' 2"~ TRASH SCREEN 3" ANGLE IRON 3 3' 3:1 SLOPE OR FLATTER MAINTENANCE PLAN 3' MIN COMPACTED 901E 1. All erosion and sediment control practices will SUPPORT BRACKETS FOR FILL 36" be checked for stability and operation following MIN ~ every runoff-producing rainfall but in no case less VALVE CRANK 3.3' _ ~ than once every week. Any needed repairs will be 30" RISER ANTI- I~III~i acir~i'~~~ i~r r=il~iil a iii made Immedlateiy tG maintain 01! praCtICBS aS i ~i i- o iii ~n i ~ i~ i~io ~ L~ I_, design VORTEX 13' 2. Sediment will be removed behind the sediment 9' MIN -~I fence when it becomes about 0.5~ deep at the BAFFLES 3' TYP. fence. The sediment fence will be repaired as necessary to maintain a barrier. TEMPORARY BERM DETAIL 3. Ensure temporary sediment trap is cleared once 8' TOP VIEW sediment reaches cleanout mark. 4. All seeded areas will be fertilized, reseeded as necessary according to specifications in the veg- etative plan to maintain a vigorous, dense, vegeMtive cover. NOTE: ANGLE IRON STRUCTURE TO BE e ° e CAST APPROXIMATELY 1' MIN INTO 1 MIN a , TEMPORARY SEEDING ° THE RISER ANCHOR BLOCK. e ~ e FRONT VIEW TOP VIEW WITH RISER AND S1161MER (May 15 -Aug 15) !ANTI-VORTEX BAFFLES NCR T O K CO E E BL C GNrman millet 40 lb/ac FRONT VIEW FAiI {Aug 15 -Dec 15) 'CS"~ Rye (grain) 120 lblac NTER EARLY SPRING Feb 1 - Ma 15 _a W( I ( Y ) Rya jgrain) 120 lblae Korean lespedeza 50 lblac NTS NTS L~n,e 2000 lblac 10 10-10 750 lb/ac straw 2000 lblac PERMANENT SEEDING 3' GRASS-LINED CHANNELS FILTER DIAPHRAGM-Use a fine W1 Tall fescue 175-200 lb/ac ~ Kentucky bluegrass 20 lb/ac sand and gravel aggregate Rye 40 lblac 2x for fiter materials. 6° Linie 4000 lblac 10 10-10 fertilizer 1200 lb(ac Pipe ~ E aL1=111 ~ ~ - sh~aw 4000 lblac ~II 71~ ALL OTHER SURFACES 1' 1- Tall fescue 130 lb/ac Keba lespedeza 10 lb/ac Ry,~ 40 lbfac Lime 4000 lblae H2 2x H1 H1 10 10-10 fertilizer 1000 lb/ac st rztw 2000 lbl ac Pipe ~ 12" 12'~ 12'~ 6„ W2 NTS FRONT ~1pE NOTES: 1. ALL CONCRETE SHALL BE 4000 PSI MIN 4000 PSI MINIMUM. GENERAL NOTES: 2. REINFORCEMENT STEEL SHALL MEET AS' ALL MEET ASTM-A615 GRADE 60 Y~TH 2" 1. ONLY DISTURB CLEAR OR GRADE AREAS NECESSARY FOR CONSTRUCTION. MINIMUM CLEARANCE. FLAG OR OTHERWISE DELINEATE ARI AS NOT TO BE DISTURBED. EXCLUDE VEHICLES AND CONSTRUCTION EQUIPMENT FROM THESE AREAS TO PRESERVE NATURAL VEGETATION. 2. CLEAR AND GRUB AREAS TO 8E FIILED TO REMOVE TREES, VEGETATION, INSIfIF PIPF ~1ur.K RnnT~ nR nTHFa na.iFCTInNABLE MATERIAL THAT WOULD AFFECT DIAMETER REINF. LBS. W1 W Wl W2 Hl H2 D E THE PLANTED STABILITY Of THE FII L 60' 3. PLACE FILL IN LAYERS NOT TO EX('EED 6" IN THICKNESS AND COMPACT THE LLU 12", 15", 18" NO. 4 2060 44" 64 44" 64" 23" 42 1/2"18 1/2" 27" LAYERS AS REQUIRED TO TO REDU(:E EROSION, SLIPPAGE, SETTLEMENT, OR OTHER RELATED PROBLEMS. 21% 24" NO. 4 3100 50" M 50" 85" 31" 56" 24" 33" 4. KEEP DIVERSIONS AND CHANNELS AND OTHER WATER CONVEYANCE MEASURES USE #6 REBAft 27", 30", 36" NO. 4 5940 64" 101 „ " " " " " FREE OF SEDIMENT AT ALL TIMES, Odom 64 108 41 72 36 49 5. ROUGHEN THE SURFACE OF ALL SLOPES DURING THE CONSTRUCTION OPERATION ~ 6"O. C. WITH 2" ~ 1.5 ti• " 52" 79" 40 " TO RETAIN WATER INCREASE INFILTRATION, AND FACILITATE VEGETATION WissOCIates CLEARANCE 42", 48 NO. 4 8040 79" 151 79" 150 64" ESTABLISHMENT. Engineering, Inc. 54" 60" 72" NO. 4, NO. 5 16000 105" 16- " " " " " 6. PERMANENTLY BILIZE ALL GRADED AREAS IMMEDIATELY AFTER FINAL 105 161 60 90 48 90 STABILIZE P.O. BOX 1787 GRADING IS COMPLETED ON EACH AREA. APPLY TEMPORARY MEASURES ON ALL SHELBY N.C. 28151 54' PRECAST CONCRETE GRADED AREAS WHEN WORK IS TO BE INTERRUPTED OR DELAYED FOR 15 ,ONCRETE HEADWALL WORKING DAYS OR 90 CALENDAR DAYS. 704-484-3778 USE 4000 PSI HIGH EARLY DAM 06-11-01 STRENGTH CONCRETE 4" SPILLWAY CONCRETE THICK NTS DMW>M NO. 01023 SHEET 2 OF 2 8' FRONT VIEW TRASH SCREEN VERTICAL SCALE- r - 14Y 30" RISER ANTI- 'TEX FLES TOP VIEW WITH RISER AND ANTI -VORTEX BAFFLES TRASH RACK DETAIL NTS 3' FII TFR n1APHRAr,M-Ilca n fines 3" ANGL SUPPORT BRACKETS FOR VALVE CRANK CONC.,_ ­ HOMMWAL 3.3'� FRONT VIEW USE #6 REBAR 6"O.C. WITH 2" CLEARANCE USE 4000 PSI HIGH EARLY STRENGTH CONCRETE 4" THICK fI SAND FILTER NTS 60' T 1.5' 54' CONCRETE SPILLWAY NTS �3.3'� 3.3' TOP VIEW NOTE: ANGLE IRON STRUCTURE TO BE CAST APPROXIMATELY 1' MIN INTO THE RISER ANCHOR BLOCK. SUPPORT DETAIL NTS H2 H1 i 12" W2 12" NOTES: 1. ALL CONCRETE SHALL BE 4000 PSI MINIMUM. 2. REINFORCEMENT STEEL SHALL MEET ASTM -A615 GRADE 60 WITH 2" MINIMUM CLEARANCE. INSIDE PIPE DIAMETER REINF. LBS. W1 W2 H1 H2 D 470 I : I I I I 468 I I I I I I �i I , i I I f I -l- - l , L- I i i I I --i- �--1- 44 64" �_-� II j l l i - },�-i-�-�- I I I 27" 21 ", 24" NO. 4 3100 50" 85" 466 �-� T� tI���� ����i� +-� I-41 -_ �' -" 1 --? -v 5940 1 108" 464 I , _ I I 462- : 36" 49" 42", 48" N0, 4 8040 i 150" 52" 79" 40" 64" 54", 60", 72" INO. t.- a.. 16000 460: , r,I!;_1 I i, -�+- - 1 � ! . j 1 a- - 1+ I1r458 _ ' I Ell, , I I( 90" 456�y t T r ' ��7 i a:-, -, 1 -� t 454irn 452 Wit- �, .r �I R He I tI_ : I I ��--� + f n e : I _ � 450 r L.1 +- : 1 1 ��I�I 448 I hi t I 11 MAI I -` - to �. . 446 , , + + t1 tom`+�� i a ! + I r +\-I , 444 -y r� r { ��, I ' , t�T\r7 . I irtr r r t 442 -,- f t t- . r 1 _�+ �r { I I r LE s s - _ -- - , - - - -i t :. . s s I 440 , _, t , - 438 -r;�-� : I 1 T 7 T -T-T I T�r� - I I I I I I � i � i -i - „ + ' ( I l l I„ I I I f_ i ! - 14 436 1 T 3' 2 -. - fIL TEF II I , I ! L II 'F. 434 - �t \r -r I LSI -- - fl 432 ! I 430 _I - 1 _ .- r..lr . i S I I , - , I . . . . . � �� rt r\fi+fir r rfi 1�� r r�rt t -t t i 1 t t 428 1 r rr�T +fig + 426 424 i i 4 ; ._ t i � , { _;" ' t 1 t t" �T TT - 1 I 422 I- - ! ! -4- 1 lr 1_ _ , _ - - - --f ,I DATLM A'I�6 L; I 420.00 I 0� n' of o M Mi MI d -I MI M') M �� d] 0+00 1+00 2+00 3+00 8' FRONT VIEW TRASH SCREEN VERTICAL SCALE- r - 14Y 30" RISER ANTI- 'TEX FLES TOP VIEW WITH RISER AND ANTI -VORTEX BAFFLES TRASH RACK DETAIL NTS 3' FII TFR n1APHRAr,M-Ilca n fines 3" ANGL SUPPORT BRACKETS FOR VALVE CRANK CONC.,_ ­ HOMMWAL 3.3'� FRONT VIEW USE #6 REBAR 6"O.C. WITH 2" CLEARANCE USE 4000 PSI HIGH EARLY STRENGTH CONCRETE 4" THICK fI SAND FILTER NTS 60' T 1.5' 54' CONCRETE SPILLWAY NTS �3.3'� 3.3' TOP VIEW NOTE: ANGLE IRON STRUCTURE TO BE CAST APPROXIMATELY 1' MIN INTO THE RISER ANCHOR BLOCK. SUPPORT DETAIL NTS H2 H1 i 12" W2 12" NOTES: 1. ALL CONCRETE SHALL BE 4000 PSI MINIMUM. 2. REINFORCEMENT STEEL SHALL MEET ASTM -A615 GRADE 60 WITH 2" MINIMUM CLEARANCE. INSIDE PIPE DIAMETER REINF. LBS. W1 W2 H1 H2 D E 12% 15% 18" NO. 4 2060 44" 64" 23" 42 1 /2" 18 1 /2" 27" 21 ", 24" NO. 4 3100 50" 85" 31" 56" 24" 33" 27% 30", 36" NO. 4 5940 64" 108" 41" 72" 36" 49" 42", 48" N0, 4 8040 79" 150" 52" 79" 40" 64" 54", 60", 72" INO. 4, NO. 51 16000 105" 161" 60" 90" 48" 90" PRECAST CONCRETE HEADWALL 'TRAcraNc' W,rH +A•cr«NEi,r � _ � AND DOWN THE SLOPE PROVIDES -- GROOVES 7WQ WILL CATCH SEED. RAWWL AM REDUCE RUNOFF TRACKING CONSTRUCTION SPECIFICATIONS FILL SLOPES 1. Place fill slopes in lifts not to exceed 6 inches and make sure each lift is properly compacted. 2. Ensure that the face of the slope consists of loose, uncompocted fill 4 to 6 inches deep. 3. Groove using any appropriate implement that can be safely operated on the slope. Do not make grooves less than 3 inches deep or more than 15 inches apart. 4. Do not blade or scrape the final slope face. CUT SLOPES AND UNGRADED AREAS THAT HAVE BEEN CLEARED AND GRUBBED 1. Roughen cut areas to shallow grooves by normal tilling, disking, harrowing, or use of a cultipacker- seeder. Make the final pass of any such tillage implement on the contour. 2. Make grooves formed by such implements close together (< 10 inches) and not less than 1 inch deep. 3. Excessive roughness is undesirable. Immediately seed and mulch roughened areas to obtain optimum seed germination and growth. Periodically check the seeded slopes for rills and washes. Fill these areas slightly above the original grade, reseed and mulch as soon as possible. 3:1 SLOPE OR FLATTER 13' MIN I 36" COMPACTED SOIL nu_ SLOPE MIN FLOW , -� IL--IiI IIT Ili„I, �1L� h -=-III ahll�n-J I, IIII -ul�� IT nr�u�nrnl ,- ' I ir'li lll�nll�l rlrill�il 9' MIN (_II�_i= Imo-- --�) _ TEMPORARY BERM DETAIL carry rip -res up- sides of -, Tway of berm #5 washed stone 3 2 -T 1' freeboard min =t, -\ i 2' 1 d5o = s' rip -rap moxirnum level of key in bottom layer �sed'xnent collected of rip -rap clan basin when this level is reached SECTION THROUGH BASIN AND FILTER carry rip -rap up sides of spillway rip -rap 1 freeboard mi 3' MIN. #5 washed stone i 2:1 SLOPE dam width SECTION THROUGH BERM AND FILTER s' d` p9~J 1 TEMPORARY SEDIMENT PERSPECTIVIM ` TRAP VE i CONSTRUCTION SPECIFICATIONS 1. Clear, grub, and strip area of all vegetation and root material. Remove all objectionable material. 2. Ensure fill material is free of objectionable material. Place fill in 6" lifts and machine compact. 3. Protect connection between riprap and soil by using filter fabric. Extend fabric across spillway foundation and sides to top of dam. 4. Clear pond area below dam for sediment cleanout. 5. All cut and fill slopes should be 2:1 or flatter. 6. Ensure stone section has min. bottom width of 3' with max side slopes of 2:1. 7. Ensure weir is level and constructed to grade. 8. Material used in stone section should be well -graded mixture of stone with d50 size of 9" and max size of 14". 9. Ensure spillway extends past toe of embankment until stable conditions are reached. Keep edges of stone outlet flush with surrounding ground and shape center to confine outlet stream. 10. Direct emergency bypass to natural, stable areas. 11. Stabilize embankment and all disturbed areas immed- iately after construction, including embankment, emergency spillway, above the sediment pool and downstream. 12. Mark cleanout level in field. MAINTENANCE PLAN 1. All erosion and sediment control practices will be checked for stability and operation following every runoff -producing rainfall but in no case less than once every week. Any needed repairs will be made immediately to maintain all practices as designed. 2. Sediment will be removed behind the sediment fence whan it becomes about 0.5' deep at the fence. the sediment fence will be repaired as necessary to maintain a barrier. 3. Ensure temporary sediment trap is cleared once sediment reaches cleanout mark. 4. All seeded areas will be fertilized, reseeded as necessary according to specifications in the veg- etative plan to maintain a vigorous, dense, vegetative cover. TEMPORARY SEEDING SUMMIH (May 15 -Aug 15) German millet 40 lb/ac FALL (Aug 15 - Dec 15) Rye (grain) 120 lb/ac WINTIR/EARLY SPRING (Feb 1 - May 15) Rye (grain) 120 lb/ac Korean lespedeza 50 lb/ac Lime 2000 lblac 10-10 10 750 lb/ac straw 2000 lb/ac PERMANENT SEEDING GRASS -LINED CHANNELS Tall rescue 175-200 lb/ac Kentucky bluegrass 20 lb/ac Rye 40 lb/ac Lime 4000 lb/ac 10-10 10 fertilizer 1200 lb/ac straw 4000 lb/ac ALL OTHER SURFACES Tall rescue 130 lb/ac Kobe lespedeza 10 lb/ac Rye 40 lb/ac Lime 4000 lb/ac 10-10 10 fertilizer 1000 lb/ac straw 2000 lb/ac GENERAL NOTES: 1. ONLY DISTURB CLEAR OR GRADE AREAS NECESSARY FOR CONSTRUCTION. FLAG OR OTHERWISE DELINEATE AREAS NOT TO BE DISTURBED. EXCLUDE VEHICLES AND CONSTRUCTION EQUIPMENT FROM THESE AREAS TO PRESERVE NATURAL VEGETATION. 2. CLEAR AND GRUB AREAS TO BE FILLED TO REMOVE TREES, VEGETATION, MUCK, ROOTS, OR OTHER OBJECTIONABLE MATERIAL THAT WOULD AFFECT THE PLANTED STABILITY OF THE FILL. 3. PLACE FILL IN LAYERS NOT TO EXCEED 6" IN THICKNESS AND COMPACT THE LAYERS AS REQUIRED TO TO REDUCE EROSION, SLIPPAGE, SETTLEMENT, OR OTHER RELATED PROBLEMS. 4, KEEP DIVERSIONS AND CHANNELS AND OTHER WATER CONVEYANCE MEASURES FREE OF SEDIMENT AT ALL TIMES. 5. ROUGHEN THE SURFACE OF ALL SLOPES DURING THE CONSTRUCTION OPERATION TO RETAIN WATER, INCREASE INFILTRATION, AND FACILITATE VEGETATION ESTABLISHMENT. 6. PERMANENTLY STABILIZE ALL GRADED AREAS IMMEDIATELY AFTER FINAL GRADING IS COMPLETED ON EACH ARE A. APPLY TEMPORARY MEASURES ON ALL GRADED AREAS WHEN WORK IS TO BE INTERRUPTED OR DELAYED FOR 15 WORKING DAYS OR 90 CALENDAR DAYS. Dl&wNc NO 01023 F--1 �o� res � E W W nIM-4 Dl&wNc NO 01023 carry rip-rap up ~ r ~ ~ i ~ ~ ~ ~ i ~ ! sides of sp0lway '~'h ~ top of berm ~ washed stone z ~ ~'A~ I a, I I eva ion o s ormwa er r 1' freeboard min ° - - p~' ES _ 0~ ' r _ r' ~ T ~d a _ ° - 9 I - ~ I ~ 2' Q t' 468 , - ~ ~ ~ ~ i l- I I -4 h- i m e ~w 3' X ~ ~ 1' - - ~ o ~ I ~ - - ~I 1~~ 1-ice, <<~.T- _~_~i~~r.ii. _i~ r I-- I i iii i~r i I~~-F~! } i i_~ iI i i_I ( 466. ~~~~~iT~ ~ - r~rii f~~ ~ ~ i~ ~ ~ i ~ + ~ lil'1 ~ ~ ~ 1 ' ~ i ~ 1' ~ - II _ - i 4 ' ~ ~ i ~ 1 d50 = 9` 464 f ~ I ~ ~ i i i ~ i ~ I ~ f I ~ i II 1 e° I ~ _r 0 ® W aP m i s ;d rNE. I 1- -I-h r, i i 46211111 i i i ~ 1 ii i i i t i 1. ~ ~ i m - maximum level of ke in bottom la ~ ii ~ ~ ~ knent coAected ofyrip-rap ~ j t~ - 'ti~,~"-~ -r 460 i ~ ~ i t ~ I I i I 1~ Ih 1 'li i ~i 1 ~ II III II a ~ saoa~s mr MML cnM*+ s®. .m = level ~Q e~a~cl~eden this ~~~I L ~ awerx~ Mo amua auxrts. ° ~ ~ r i ~ i i i i i~ ~ SBCTION THROUGH BASIN AND FILTBR v ~I i 458 ~ i i i i i _r_ i 1 - - i ~ i ~1~ iii ~ lli i ~i ~V sorry rp-r up 456 r fi t t~-~~ ~ ~ ~ t ` ~ ~ j' ~ u F_ ' It; ~ ~ i i, ; TRACBING i sides of spillway d50 = 9" r _ rip-rap _L 454 ~ - _ - i ii i i,~, i ~~~i ~ I i ~I~ liitit ~ii i it iiii viii 1 f ~iiili i ~ ~i ~~il ~ ili i i - j ~I ~ i i 452 ~ -r-~ ~ i ~ i ~ i~ ~ i i i _ i i i i ~ i i i_ _ i , ~ i~ ~ i ~ ~ ~ i~_ I i 1' freeboard m' ii i ~tEIEBII'1[L"~~:?'i`R'Q~s'',Tw ~;f 450 I-r ~ ~ ~ ~ ~ ~ ~ ~r---~~~~r-,- ~ , ~ ~ ~ ~ r~ . , _ . ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ f ~ i~ ~ ~ ~ 1 L,_ i~ i,. i i -L_ i.-- ~ I ~ t ~ t i i 7... ~ ~ ~~r ~ - II iI i ~I i Ii'II l I~ ~ii 111~~ I I I i~IC ~ ~ 3' MIN. ~ I ;f!5 washed stone I ~ ~ ~~il lillllllll ICI I~Ill~i ICI II I Ilil II f I~fi ~ i I I I I 448 ~ i ~ t ~ ~ ~ ~ , ~ ~ ~ - I I~ l - 1 r I 1 __A_ 446 1, 1'-`~tI I'~I ~ ~ - rt ~ ~ 6. ~ J ~ , dam wdth - . ~ SECTION TOUGH BERN AND FILTER i 444 ~ ~ ~ ~ 1 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ I I i i 442 r'-; ~ , ~ _--~-~~-r 1 - t , t r ~ ` ~ ~ , ~ S ~ 6' ' 1 i a-u 1 ~ i~-r ~ TI ~T 440 ; ~ 1 ,-r, ii_ i ! I 1 v f I ewoorFS Mai. cen~n . ~ eyj~ f l 438. ~ ~ ~ ,ti ~ ~ ~ ~ ~ ~~t~ s®, ronuz~, mat ~r ~ en I awhF~u w+o of h~ ~ i , t pi t,: ~ r , r ~ ~ ~ i t I -1 436 f- t r T~-t-~- ~ (tom- rr~f7, 1 I ~ ~ +~~fh ro, ~ ~ M • i `i i~ fi~~ i~~ ~i .u, ~~~+,i ~ ~ _ > r rtt-r1 r~r-r~-t-r-rrt r ~ r , ~iY i ~ i i ~ 11 f rl r 434 ~ - - _ ~y~ ~ CONTOUR FURROIIS ~ ~ i_-F-r-,-_.-,-~ ~ i i__ _.f 432 H~ -+-m- ~ ~ ~ ~ ' ~ H d50 = 9" TEMPORARY r-r -;-,-r-rT~,-~----~-f-- ~ ~ ~ ~ ~ ~ ~ . ~ ~ ~ _ I ~ , ~ ~ 1~ ~ 430 ~ ~ ~ i~ii~ i i~t iiii i~~~ i i i i iiii~l i iil ~ i~ ,y, , SURFACE ~ ~ -ra iP P SEDIMENT ROUGHENING - ~ pBBSPB(R'IYE v>~I I TRAP „ ~ „ ~ , I' ~ ~ fiI . i ~ I t-f- 428 ' ' ' ~n~ - J 426 CONSTRUCTION SPECIFICATIONS CONSTRUCTION SPECIFICATIONS ~ f t ~ ~ '-i ' + 424 h-!~-!-r-L , ~ ~ ~ ~ I 1 ~ 422 'r; '1-~-T; ~ +-F , ~ ~ ~ _ ~ ~ ~ FILL SLOPES 1. Clear, grub, and strip area of all vegetation and root material. Remove all objectionable material. ~ DdThiY1ELEU i~'-t-f--i ~ 1 i ~i ~ i ~ i ii iii~~i~l I i I ii~ll ~i i i I I ~ I I i I I ~ I I I i ~ ~ i i 1. Place fill slopes in lifts not to exceed 6 inches and 2. Ensure fili materioi is free of abjectionoble material. make sure each lift is properly composted, Place fill in 6" lifts and machine compact. ~ I I 420.OD I I A I ~ i I 2. Ensure that the face of the slope consists of loose, 3. Protect connection between riprap and soil by using 0~ ~ M O O O ~ i uncompacted fill 4 to 6 inches deep. filter fabric. Extend fabric across spillway foundation and t? 3. Groove using any appropriate implement that can sides to top of dam. •I M pp~ ~ N N~ ~ n, co, M~ ~ M~ be safely operated on the slope. Do not make grooves 4. Clear pond area below dam for sediment cleanout. ~ ~ 1 less than 3 inches deep or more than 15 inches sport. 5. All cut and fill slopes should be 2:1 or flatter. 4. Do not blade or scrape the final slope face. 6. Ensure stone section has min. bottom width of 3' with l ~ 0+00 1t00 2+00 3+00 CUT SLOPES AND UNGRADED AREAS THAT HAVE BEEN max side slopes of 2:1. 7. Ensure weir is level and constructed to grade. CLEARED AND GRUBBED 8. Material used in stone section should be well-graded 1. Roughen cut areas to shallow grooves by normal mixkure of stone with d50 size of 9" and max size of 14". tillin diskin harrowin or use of a culti acker- 9. Ensure spillway extends past toe of embankment until g' g' g' p stable conditions are reached. Keep edges of stone outlet seeder. Make the final pass of any such tillage implement on the contour, flush with surrounding ground and shape center to confine M..~ v~~c,~, sc~- i~ _ ~ xo~zo~rr~, sc~ r = ~ 2. Make graaves formed t>y such implements class outlet stream. together 10 inches) and not less than 1 inch deep. 10. Direct emergency bypass to natural, stable areas. 3. Excessive roughness is undesirable. 11. Stabilize embankment and all disturbed areas immed- Immediately seed and mulch roughened areas to obtain lately after construction, including embankment, emergency optimum seed germination and growth. Periodically check spillway, above the sediment pool and downstream. the seeded slopes. for rills and washes. Fill these 12. Mark cleanout level in field. areas slightly above the original grade, reseed and mulch as soon as possible. 3.3' 2"~ TRASH SCREEN 3" ANGLE IRON 3 3' ~1 SLOPE OR FLAT1Qt MAINTENANCE PLAN 3' IAIN COI~ACTED 901L 1. All erosion and sediment control practices will SUPPORT BRACKETS FOR Fl 3B' be checked for stability and operation following LL MIN every runoff-producing rainfall but in no case less SLOPE FLOW VALVE CRANK 3.3' r- than once every week, Any needed repairs will be . . ~ ~ ~~r,~ made immediately to maintain o8 practices as 30" RISER ANTI- ~i~ ~-I~~ ~~al ~I~u~~lal~~~~~~~ iuiui Ti ~ i - ~'~,'~Il.,,~di~ designed. VORTEX 13' 'y" 2. Sediment will be removed behind the sediment 9' ~iIN-~ fence when it becomes about 0.5' deep at the BAFFLES 3' TYP. fence. the sediment fence will be repaired as 8' necessary to maintain a barrier. TEMPORARY BERM DETAIL 3. Ensure trmporory sediment trap is cleared once TOP VIEW sediment reaches cleanout mark. 4. All seeded areas will be fertilized, reseeded as necessary according to specifications in the veg- etative plan to maintain a vigorous, dense, vegetative cover. NOTE: ANGLE IRON STRUCTURE TO BE ° ° ° CAST APPROXIMATELY 1' MIN INTO 1 M!N ° ° e ° ° THE RISER ANCHOR BLOCK. TEMPORARY SEEDING ~r ° e e FRONT VIEW TOP VIEW WITH RISER AND SUMMIH (May 15 -Aug 15) ANTI-VORTEX BAFFLES CONCRETE BLOCK Germ.{n millet 40 lb/ac FRONT VIEW FALL (Aug 15 -Dec 15) Rye 1~71'ain) 120 lblac ViINTIR(EARLY SPRING (Feb 1 -May 15) Rye Igrain) 120 lblac Korean lespedeza 50 lbiac NTS NTS Lime 2000 lbiac 10-1a 1D 750 lblac straw 2000 lblac PERMANENT SEEDING 3' GRASS-LINED CHANNELS FILTER DIAPHRAGM-Use a fine W1 Tall fescue 175-200 lb/ac p Kentucky bluegrass 20 lb)ac sand and gravel aggregate Rye 40 1b/ac 2x for fiter materials. 6" Lime 4000 lbiac 10-10-10 fertilizer 1200 lb(ac Pipe ~ E ~ih;i-+ ' straw 4000 lbrac _ - II - ALL OTHER SURFACES 1' fescue 130 lb ac Tall / Kobe lespedeza 10 lblac Rye 40 lb(ac Lime 4000 lblac H2 2x H1 H1 10-10 10 fertilizer 1000 lb/ac straw 2000 lblac Pipe ~ 12" 2" ~2" W2 6" NTS FRONT ~1QE NOTES: 1. ALL CONCRETE SHALL BE 4000 PSI MINIM 100 PSI MINIMUM. GENERAL NOTES: 2. REINFORCEMENT STEEL SHALL MEET ASTM L MEET ASTM-A615 GRADE 60 WITH 2" 1. ONLY DISTURB CLEAR OR GRADE AREAS NECESSARY FOR CONSTRUC110N. MINIMUM CLEARANCE. FLAG OR OTHERWISE DELINEATE AREAS NOT TO BE DISTURBED. EXCLUDE VEHICLES AND CONSTRUCTION EQUIPMENT FROM THESE AREAS TO PRESERVE NATURAL VEGETATION. IN~DE PIPE prior ~ 2. CLEAR AND GRUB AREAS TO BE FILLED TO REMOVE TREES, VEGETATION, ..M urn u, un n r MUCK, ROOTS, OR OTHER OBJECTIONABLE MATERIAL THAT WOULD AFFECT d DIAMETER muimr. LDO- ni 114 ni nc ni n4 u r- THE PLANTED STABILITY OF THE FILL. ' 60 12", 150, 18" NO. 4 2060 44" 64" 3. PLACE FILL IN LAYERS NOT TO EXCEED 6" IN THICKNESS AND COMPACT THE 44" 64" 23" 42 1/2" 18 1/2" 27" LAYERS AS REQUIRED TO TO REDUCE EROSION, SLIPPAGE, SETTLEMENT, OR " " " " " " OTHER RELATED PROBLEMS. 21", 24" NO. 4 3100 50" 85" 50 85 31 56 24 33 4. KEEP DIVERSIONS AND CHANNELS AND OTHER WATER CONVEYANCE MEASURES Odo " " " " " " FREE OF SEDIMENT AT ALL TIMES. m USE #6 REBAR 2. 1 27" 30" 36" NO. 4 5940 " " 64 108 41 72 36 49 5. ROUGHEN THE SURFACE OF ALL SLOPES DURING THE CONSTRUCTION OPERATION LA Q~ 6"O.C. WITH 2 7 1.5 64 108 ti• CLEARANCE 42", 48" NO. 4 8040 79" 150" TO RETAIN WATER INCREASE INFILTRATION, AND FACILITATE VEGETATION SSOCIateS 79" 150" 52" 79" 40" 64" ESTABLISHMENT. En ineerin , Inc. 54" 60" 72" NO. 4, NO. 51160001 105" 161" 105" 161 60 90 48" 90" 6. PERMANENTLY STABILIZE ALL GRADED AREAS IMMEDIATELY AFTER FINAL P.Q. BOX 1787 GRADING IS COMPLETED ON EACH AREA. APPLY TEMPORARY MEASURES ON ALL SHELBY N.C. 28151 54' GRADED AREAS WHEN WORK IS TO BE INTERRUPTED OR DELAYED FOR 15 PRECAST CONCRETE )NCRETE HEADWALL WORKING DAYS OR 90 CALENDAR DAYS. 704-484-3778 USE 4000 PSI HIGH EARLY DATA 06-11-01 STRENGTH CONCRETE 4" CONCRETE SPILLWAY THICK NTS DRAWING NO. 01023 SHEET 2 OF 2 I, cony of -rNlwd ,~,r„itrrir~, sides sp y , ~ C , z' ~ , ° ° I t of berm /5 washed stone ~ ° m - ~f s° 1' freeboord min ion o s armwa w , ° ~A ~ ° _ - 2, ~ i i i 3 r-!-i-= ~ , ~ ! ~ , ~ , I 1 ~ 468 I-~~- ~ ~ ~ ~ , f i i ~ ~ ~ ~ ' ~ 1' ~ - I ~ ~ ~ ~ ~ i~*" f~ i ~ ~ , i ~~~i ~ ~ ~ , i i ~ ~I , - i . I I ~ i~ i i 466 ~ i i ~ i ~ ~ i i ~ i i t' - I ° I ~ dp raP~~ vA~~ - i d N. ~i~~ ~i ~ li i _II ii;'~ ~ i i FTC 464 ~ ~ - i ' ; ~ ~ ~ t _i ~ I i \ \ ° ~ maxinum level of `9 ~ ~ I _ ~ key in button hyer , I _ ® m _ i j ~m ~ \ ~ ~ i edim~t cdlected of rip rap ~ II ~ i I ~ I 'III-~----~--~-- - - - + + I i ii~;~ ~ ~ i Iili~ 11 I l i it ~ ~ I 462 ~ I~~, ~ ~ ~ ~ ~i I~ _ i~ ~ i ~ i i , ew oo~ nc siavc v~o~s > - _ ~ boain when this ' ~ :A\~A\. is reached `~~rruui r~` anoo+~s nNr Mu cox st». ; ~ ~ ~ J ~ r i i ~ i i i ~ i ~ ~ ~ ~ " ~ ~ -1-t-' ~ ~ ' 460 ~Yt~-r-art t t+ t -r ~ t" r~++-r ~ I~ t 1-t - r I ~ I l ~ ~ ~ ~ , ~ ~ ~I ~ ~i I I I I ~ h I i ~i i I i I wrwrru wo xmua auror>:. ~ ~ _ I SECTION THROUGH BASIN AND FILT1sR \'a \ ' curry rq-rapp up I I ~ ~ ~ ~ ~I I~; ~ III ~ I~ ~ i' ~ - - ll~!!- f;,'. ~ ~;a lr;,a,tl-+~~" 4581 I i I I I I--I ~ ~ ~rt; , , in-I I ~ , , , : I _ ~ • ~ ~ } k_ i i i i ~ i ! ; . ~ ~ I~~', i ~ sides of spillwoy TRACEING I i~ 'i i 46 5 d50 = 9" I_ ~ rip-rap o fi i ~ ~ ~ ~ 1 ~ i I I T: ~ I 454 f-,_~~- , a-, _ i ~ i i I I i t I ~I I 1~ freeboard m' ~~~p.'~?,:v.R,"u`u-~,F3 i I Ill~il iii i i i L I ~ ~ ~ - 452 ~ ~ --~--t i 3' MIN. /5 washed atone ~ i i ~ I i n II II I i~ i , i - i i 1~ i i i i i ~ . ~ i - 450 i~~T' I ~ ~ ~ ~ I~ T ~ ~ ; t ~I -~~1~LOPE ~ ~s- i I-----~ f I ~ i - ~ I. ! ~ i i i 4 i I . . ~ dam width ' so R e' SECTION THROUGH BERN AND F&TER i i I ~ ! 446 ~ ~ ~ ~r-r-;-rte ~ - ' „ _ , ~I ~ I ~ 444 ' fi t s f- ~ ~ ` ~ ~ i I , ~ I t~ l~rfit-'- L'I 1 j--~- _ _ i ' r ; r,l -}-~-t-~-----7------~-r- ; } } , ~ s' II ~ ~ i a ~ eyj ~ 1 li j I ~ / ~r t fi 442 , ~ i r ~ - - t ~ - ~ ~ ~ fi~~ r I ~I~~+~I~+~•1}-}I tf~i ...~I 1~r~r~, ~s ~ ~ ~ ~ ~a-I i ~f ~ ~ ~l s ~ti* ~ / tp/_~ ~ 440 ; Y-~~ i r ~ . ! N~ :ti-1 _ ~ ~ ~ ~ ~ ~ ~ ~ , i , i ~ ~ ~ ~ _ - , i i ~ i ~ i ; - _ pKM~ wa occams ~ ~ °o, 438 ~ ~ 1 ~ i 1 rt 1 ~ t- ' i ,a / Mi i °^n 1 ~ J 4 , , , 436 -~-i-~-I-~+ ' ~-r r ; ~ _ ---r r ~ - i ~ ~ i f , ~ , , corrroux >~o?s i y ~ ~ • d5o = s` I~ TEMPORAR 434 ~ ~rfi r ~r~ ~ - r't-t . _ t~r h - - _ ~ fi - +I i1 ,Y Tit _ _ - - ~ i i i rlp-rap ~ ! SEDIMENT ! SURFACE i TRAF 432 ~-1-1-~-~~-j--±-~ _ _ . 1-~--r-r~ I ~ ~ ROUGHENING o ~ ~ i I ~ - ~ _ 430 428 ~ -r~ i - ~ i ~ ' ~r~ i ~ ~ i , ~ ~ ~ ~ I ~ ~ TRUCTION SPECIFICATIONS n CONSTRUCTION SPECIFICATIONS CONS 426 ~-~-~-;-T rte,-.-~ --~-~-i-+~-1-~--,~--~- - . _ - , ~ ~ ~ ~ i i~ ~iiii~. Dili i.~ i~, H i~~~l II~T~~ II i~~ ,iii iil~i~ iii ~ ~I~ ~ L Clear, grub, and strip area of all vegetation and root [ta material. Remove all objectionable material. 424 r1-t-H-t ~t~' i „ ~ ~ ~ „ ~ , -t-t , 1 ~ FILL SLOPES exceed 6 inches and 2. Ensure fill material is free of objectionable material. ~ 1, Place fill stapes in lifts not to 422 ~ ~ ~ ~ ~ ~ - -r ,~I +..~~T--~- ' 'fir,- - _ _-1 ~ i ~ i i i - I -1 - ; i _ I ~ eke sure each lift is properly compacted. Place fill in 6" lifts and machine compact. rrt m DATLhf ELE4 I I ~fi_1 - i ~ i - - - :~1 i i' ! ~ ~ i ~ ~ III - ~ ~I_ t ~ ~ J~11J_ ' ~ - - , ~ I 420.00 I nsists of loose, 3. Proteck connection between riprap and soil by using i~ 2. Ensure that the face of the slope co 6 inches dee . filter fabric. Extend fabric across spillway foundation and uncompacted fill 4 to P sides to to of dam. ' i I ~ OO 3. Groove usin an appropriate implement that can p nowt. U g Y 01'~, ~ M N N O~II, ~O',, t0 MI r,Mj! M MCI e safe) o erated on the slope. Do not make grooves 4. Clear pond area below dam for sediment clea b yp than 3 inches de or more than 15 inches apart. 5. All cut and fill slopes should be 2:1 or flatter. h less eP MI M M M d ~I C i i ~ ~ ~ blade or scra a the final slope face. 6. Ensure stone section has min. bottom width of 3 wl 4. Do not P max side slopes of 2; 1. 'i CUT SLOPES AND UNGRADED AREAS THAT HAVE BEEN 7. Ensure weir is level and constructed to grade. i - - 2+00 3+00 8. Material used in stone section should be well-graded CLEARED AND GRUBBED mixture of stone with d50 size of 9" and max size of 14". 0+00 1+00 1. Rou hen cut areas to shallow grooves by normal nsure s illwa extends past tae of embankment until 9 9, E P Y tilling, disking, harrowing, or use of a cultipacker- stable conditions are reached. Keep edges of stone outlet seeder. Make the final pass of any such tillage flush with surrounding ground and shape center to confine implement on the contour. outlet stream. t ~~/~~AL+ aw!!Ld'i~ 1 ~ ~1/ ~1V W1~ i 2. Make grooves formed by such implements close 10. Direct emergency bypass to natural, stable areas. together 10 inches) and not Tess than 1 inch deep. 11. Stabilize embankment and all disturbed areas immed- VER1zCAL 8(',ALE Y 10~ 3. Excessive roughness is undesirable. lately after construction, including embankment, emergency Immediately seed and mulch roughened areas to obtain spillway, above the sediment pool and downstream. optimum seed germination and growth. Periodically check 12. Mark cleanout level in field. the seeded slopes for rills and washes. Fill these areas slightly above the original grade, reseed and mulch as soon as possible. 3.3' 2"~ TRASH SCREEN 3" ANGLE IRON 3.3' ~1 SLOPE OR FLATTER MAIN ItNANCE PLAN 3' MIN 1. All erosion and sediment control practices will COMPACTED SOIL be checked for stability and operation following FILL ~ ever runoff- roducing rainfall but in no case less SUPPORT BRACKETS FOR MIN FLO'N than once ever week. Any needed repairs will be Y VALVE CRANK 3'3 to maintain all roctices as ~u,~„~, „i~,,,~i I, made immediately P 11 `i1~i1 ~ - ~r~ll ~~„«1 ~ ~~~~I~~~~h ~ r~ designed. ~iru ii_ni~i_ ~_ni I _iii i. u_I!~ III i'ilih ' a,l_ 2. Sediment will be removed behind the sediment 30" RISER ANTI- VORTEX 13' 9 MIN ~ fence when it b?~ omes about 0.5' deep at the fence. The sedirrrent fence will be repaired as BAFFLES 3' TYP. necessary to mai~~tain a barrier. MPORARY BERM DETAIL 3. Ensure temporary sediment trap is cleared once t mark. uu 8' TOP VIEW sediment reacheQ cleanou 4. All seeded areas will be fertilized, reseeded as - necessary according to specifications in the veg ' \ etative pion to maintain a vigorous, dense, vegetative cover NOTL: ANGLE IRON STRUCTURE TO BE ° ° CAST APPROXIMATELY 1' MIN INTO 1 MIN ° , TEMPORARY SEEDING ° THE RISER ANCHOR BLOCK. a FRONT VIEW TOP VIEW WITH RISER AND ~ ° SUMMER (May t5 -Aug 15) German millet 40 lblac ANTI-VORTEX BAFFLES CONCRETE BLOCK FRONT VIEW FALL (Aug 16 -Dec 15) Rye (grain) 120 lblac WINTERIEARL~~ SPRING (Feb 1 -May 15) Rye (grain) 120 16/ac A Korean lesparieza 50 lb/ac NTS NTS Lime 2000 lb(ac 10-10-10 750 lb/ac straw 2000 lblac pFtIMANENT SEEDING 3' GAASS TINED CHANNELS Tall fescue 175-200 lb(ac FILTER DIAPHRAGM-Use a fine W1 Kentucky bluegrass 20 lblac sand and gravel aggregate ~ Rye 40 lblac _ Lime 4000 lb/ac 2x for fiter materials. 6 10-10-10 fertilizer 1200 lb/ac Pipe ~ E I ~ I- straw 4000 lb /ac ry;l= III. I' ALL O~IIER SURFACES I-' Tall fescue 130 lb/ac Kobe lespednla 10 lb/ac 1' Rye 40 lblac Lime 4000 lblac 10-10-10 fertilizer 1000 lb)ac H2 2x H1 straw 2000 lblac Pipe ~ I~ 12>, 12" 6" W2 NTS E~.Q>yI ~lQE NOTES: ~i MINIMUM. GENERAL NOTES: 1. ALL CONCRETE SHALL BE 4000 PSI MINIMUM. 2. REINFORCEMENT STEEL SHALL MEET ASTM-A61: 1. ONLY DISTURB CLEAR OR GRADE AREAS NEC.ISSARY FOR CONSTRUCTION. .T ASTM-A615 GRADE 60 WITH 2 FLAG OR OTHERWISE DELINEATE AREAS NOT IO BE DISTURBED. EXCLUDE MINIMUM CLEARANCE. VEHICLES AND CONSTRUGTION EQUIPMENT FRtiM THESE AREAS TO PRESERVE NATURAL VEGETATION. 2. CLEAR AND GRUB AREAS TO BE FILLED TO IttMOVE TREES, VEGETATION, _ _ MUCK, ROOTS, OR OTHER OBJECTIONABLE MA IERIAL THAT WOULD AFFECT ItuCinF PIPE DIAMETER REINF. LBS. W1 W2 H W2 Hl H2 U E THE PLANTED STABILITY OF THE FILL. iy 60' 3. PLACE FILL IN LAYERS NOT TO EXCEED 6" IN THICKNESS AND COMPACT THE 12", 15", 18" NO. 4 2060 44" 64" 23 64" 23" 42 1/2-18 1/2" 27" LAYERS AS REQUIRED TO TO REDUCE EROSION, SLIPPAGE, SETTLEMENT, OR OTHER RELATED PROBLEMS. ;WATER CONVEYANCE MEASURES 21", 24" NO. 4 3100 50" 85" 31 85» 31 56» 24 33» 4. KEEP DIVERSIONS AND CHANNELS AND OTHER y~ USE #6 REBAR ?.7 27", 30", 36" NO. 4 5940 64" 108" 41 FREE OF SEDIMENT AT ALL TIMES, Odom 108" 41 72" 36" 49" 5. ROUGHEN THE SURFACE OF ALL SLOPES DURING THE CONSTRUCTION OPERATION 6"O.C. WITH 2" 1.5 VEGETATION jaCAssqciates " » " " " TO RETAIN WATER, INCREASE INFILTRATION, AND FACILITATE CLEARANCE 42", 48" NO. 4 8040 79" 150" 52 150 52 79 40 64 ESTABLISHMENT. Engineering, Inc. 54", 60% 72" NO. 4, NO. 5 16000 105" 161" 6C » » » » 6. PERMANENTLY STABILIZE ALL GRADED AREA', IMMEDIATELY AFTER FINAL P.O. BOX 1787 161 60 90 48 90 GRADING IS COMPLETED ON EACH AREA. APPLY TEMPORARY MEASURES ON ALL IS TO BE INTERi,,UPTED OR DELAYED FOR 15 SHELBY, N.C. 28151 GRADED AREAS WHEN WORK 54' - PRECAST CONCRETE HEA WORKING DAYS OR 90 CALENDAR DAYS. 704-484-3778 BETE HEADWALL USE 4000 PSI HIGH EARLY »ATB 06-11-01 STRENGTH CONCRETE 4" CONCRETE SPILLWAY THICK NTS DRf?W1Pd(i NO. 01023 SHEET 2 OF 2 _ , sides o -rillwap \~ulu+lr~~~ I 00 sP Y 470 ~ ~T~~ - , I ~ I ~ ~ I~ ~ ~ hT ~ ~I~ ~ I ~ m a, o t of berm ~ washed stone 2 C evo Ion o s ormwa er t' freeboard min , ~ ~ES ~ - , ~T+ r : i ~ r - ~ - -r,-- ~ : 68 ~ ITI i l I% ' 'I 4 -~-I-1 } o ~ ~ - E-~ + -I-~-~-~-i-~ a - 466.. ~i~~ ~ I. ~I I: ~ 4 I ,r 1 ~ ~I~~ I 9 , I I o I ° m w 3' 1' ~ - ~ I ~ _ - - ~ ~ i : ~~~r ! ~ i ~ ~ ~ i I~~ _ I~1, ~ i i I i i ~ l i l~ 1. i i A l i I i i i ~ i -+-r+-r-r-r1-~-.._t-+- i I ~ ° I I - - r 13 i . , 462 ~~--~-i-~ ~ _ I' i I i I I ~ I ~ i i I i ~ I I j G-,- - : i ~ I~ ~ - - - ~ ~ j - - I d50 = 9" I c ~ rp-rap _ ~ _ _ I fi~ ~ ~ ~ ~ I ~ i + ~ h~- _ i i t . I . ~ r 46D ~ T i i I-1 ~ I ~~-_f I i f ~ ~ i ~ " °°m' I maximum level of N : '~1\` ° o v ~i y, bottom foyer r ~ n~ie S~.oatppMO[s~ - \ ° edinent cdlected of n1e-r ~ 1 458 I I ~ I 1 I ~~,~I I I~ I I I-... - ~ i-~-, ~ i ~ I i I~ I i i ~ i I_f ~ l~ I I ~ ~ I ~ _t ~ a CAa01R5 R16 wLL GVGI $Em, ~ `°'~m m ~ n basin w}78n tDrs p ~ U~ wurwt wrn xtaia nunaFS. ° ' level is reached ~~r i~` ~ r u n rlJ \ I n I ` ~ ; ~~-I _ I I I I I r~ ~ ~ ~ ' 456 ; ~ ~ ~ ~ ~ - -r-~ ~ I I ~ ~ i I _I ~ SECTION TBRDUGH BASIN AND FlII'ER ~ ~ I ~ : l E 454: ~ ~ ~ t t-t ~ ~ ~ ~ i II TRACSING I carcy rlp-rapp up I sides of spiNway Ilia ~I i i i i~ i~ III I II i ~ : III I I II I III I I I ~ I I I I I Ilil i;~ it': i i i : I 452 ~ I ' - ~ I ~ ~ d5a = 9" rip-rap I i 1 al!il ~~~~aa ~ fi I ';I~ ~I li n a III I ~ It ~~Ilil~l I I F~, t~~ ~ i i i i -t-1-1 i ~ ~ - \ ~ 1 1' freeboard mi 448 I I~-1 i t ~~T I ~ 11 1 I ~ t I I I i i ~ I i III I I I ~--III i I I i ~ _ 3' IAIN. ii i i ~i i , , i 1 : i i i i I i I t i i I I i 446 ~ a~ t~ t ~ I i ~ I_~-._.__ I I I I ~ i ~ -F i i I I ~ I C I I j I ~S washed scone ~ ~ 2:1 SLOPE : i i - i~ ~ ' I L~ a I I I I~ III I f -r t I-t 444 ~ ' I I~' rl~~t t i r t-r-r- ~ - ~ _ II 50 R 6• u1 ~ ' ~ I I dam width "yl ! I SECTIDN TBROUGB BERN AND FILTER _ . ~ 1 ( - ~ i n j_ii ~ - ~ I I i ~ i ! 442 7 ~.__1 - i--1 i i I I I 1 : ~ ~ ~.~i, ~ I ~ i_ ~ i~ t ~ I i ~ -+".'i i I ice: : I I ~ ~ 1~ ~ i i~ ~ ~i ' I ~ I I I --t I ~ i ~ - . ~ fi F ~ ; ' s s I 1 ~ ~I ~ ~ ~ t t I 1 ~ ~ t1 ' -}--I-. _ e t f I I I 1~ I I I I I I I I I I t I t f I I 1 1_, 1 I I~ V I ~ ~ ~ I ~ ~i 440 ~ F-_i-1 ~ 1. ; I -t-~--~~.._._.,_,_. ~ ~ _ ~ ~ ~ - i .°_l ~ ~ ' I - : - - ~ I i - _ I i : , ` # ` _ I ~ ~ i i , r 438 __i ~ Tom, ~ ~ ~ ` -~1 ,TI ; ~ ~ ~ ~ ~ i II Iii II ~ I II~ I i ~ ~ ~ -~I -r,- ~-i : aroucs eu a~x I n~ ~ ~ ~xu~iro~occ~ ~ ~ ~ i ~ ~ enr At : ~ ~ 436 ~ s ~ ~ I I a ~ + mNOrr. i ~ /eoph i ~ ~ ~i ` M • 434 i I 'i t~r""._.i. ~_t - z l i: ~ I ~ l i i l i i i i i i i i~ I I i~ I l I ~ i~ ~ I~-.. - ~ i ~ -trtt~l~l~rt I § CONTOUR FURROI?S I ~ 432 ` ' + , ,-~rl_;1-I-~ ~ _ t_~ _ . ~ ~ ' ~ ~ ~u ~ ~ . ~ ; I e~r~ ~~-r : II ~ H eso = s' TEMPORARY 430 ~ t! ; ' . ---~-~-4 ' -~-I-a-' ' _ ; ~ I ~ ~rt~~. 1 iii -I-1-r t - I SURFACE r -ra I ~ p ~ SEDIMENT ~ ROUGHENING I pERSFEL~vE v>~r j Tip 428 , ~_~I~r-rH~ ~~~-tt' 3:; ' ~ , I I_ I enl' ~ l - 426 i-~ r r~`~~ I ~ ~ ~ ~ ~ ~ ~ ; ~ ~ : ~ : ~ : ..r 424 ~ ~-t-'fiFrt-t-t ;~r------ ~ i i i i, i I ~ ~ , i i , I DTI CONSTRUCTION SPECIFCATIONS CONSTRUCTION SPECIFICATIONS ~ I; 422 ~~-r t~ ~ ~ r!-r 1 i ~ ~ ' , ~ A - : r +t-r-_ . _ 1 i I--1 ~ i ~ 1~~-'-+ ' I~ rt ~ , i ~ ~ ' 1~ ' r ' , rt ~ , r~ t~ifi f i- ; r~-j- x-1-1 : : DATUM ELBG I! i i r I i E i~ ' i i ~ ~ I ~ ~ ~ i 1-1 FILL SLOPES 1. Clear, grub, and strip area of all vegetation and root material. Remove all objectionable material. - 420.00 - Ill~t,l~~LL! ~iit~ _ 11iL 1, I~ _ 1-_i _ 11I1iIiIf f__~il11 ~ !i!'~iiiilili(11tIii1 ~I.I_~i~1~~~~iL~ I 1. Place fill slopes in lifts not to exceed 6 inches and 2. Ensure fill material is free of objectionable material. I ~ ' I I I I make sure each lift is properly compacted. Place fill in 6" lifts and machine compact. i~ 2. Ensure that the face of the slope consists of loose, 3. Protect connection between tiptop and soil by using L, ~ rn `t N1 O O O ~I, ~ r) I ~ h cqI a r~l, tV I N uncompacted fill 4 to 6 inches deep. filter fabric. Extend fabric across spillway foundation and ~ ~ ~ d~'I ~I ~I ~ 3. Groove using any appropriate implement that can sides to top of dam. be safely operated on the slope. Do not make grooves 4. Clear pond area below dam for sediment cleanout. ¢I ~ j I ii less than 3 inches deep or more than 15 inches apart. 5. All cut and fill slopes should be 2:1 or Hotter. ~ I ~ i I - 4. Do not blade or scrape the final slope face. 6. Ensure stone section has min, bottom width of 3' with o+oo ~+oo z+oo 3±00 CUT SLOPES AND UNGRADED AREAS THAT HAVE BEEN max side slopes of 2:1. 7. Ensure welt is level and constructed to grade. CLEARED AND GRUBBED 8. Material used in stone section should be wdl-graded 1. Roughen cut areas to shallow grooves by normal mixture of stone with d50 size of 9" and max size of 14". tilling, disking, harrowing, or use of a cultipacker- 9. Ensure spillway extends past toe of embankment until seeder. Make the final pass of any such tillage stable conditions are reached. Keep edges of stone outlet V~tTICAL SCALE- 1" ~ 10~ - • HO SCALE Y 20r implement on the contour. flush with surrounding ground and shape center to confine E..~ 2. Make grooves formed by such implements close outlet stream. together 10 inches) and not less than 1 inch deep. 10. Direct emergency bypass to natural, stable areas. 3. Excessive roughness is undesirable. 11. Stabilize embankment and all disturbed oreas immed- Immediately seed and mulch roughened areas to obtain iotely after construction, including embankment, emergency optimum seed germination and growth. Periodically check spillway, above the sediment pool and downstream. the seeded slopes for rills and washes. Fill these 12. Mork cleanout level in field. areas slightly above the original grade, reseed and mulch as soon as possible. 3.3' 2"~ TRASH SCREEN 3" ANGLE IRON , 3.3 3t1 SLOPE OR FLATTER MAINTENANCE PLAN s ?eN SUPPORT BRACKETS FOR COMPACTED S0~ 1. All erosion and sediment control practices will VALVE CRANK 3.3' 36~ be checked for stability and operation following FlLL MIN ever runoff-producing rainfall but in no case less SLOPE ~,OW Y . r- than once every week. Any needed repairs will be 30" RISER ANTI- VORTEX 13' «~I u~i~ ~~,J,~ mil made immediately to maintain all practices as II JI III"` IJ~I~~'\iIi - III-JII it ll~ll-~JI'- I \i~iir!_I designed. BAFFLES 9~ t~HN ~I ?I 2. Sediment will be removed behind the sediment 3' TYP. fence when it becomes about 0.5~ deep at the fence. The ~:ediment fence will be repaired as 8' TOP VIEW 1_, TEMPORARY B necessary to maintain a barrier. ERM DETAIL 3. Ensure tem orary sediment trap is cleared once R sediment reaches cleanout mark. 4. All seeded oreas will be fertilized, reseeded as necessary according to specifications in the veg- etative plan to maintain a vigorous, dense, vegetative cover. NOTE: -r--_ ANGLE IRON STRUCTURE TO BE 1' MIN 4 CAST APPROXIMATELY 1' MIN INTO 0 FRONT VIEW THE RISER ANCHOR BLOCK, TOP VI W WITH RISER AND a ANTI-VORTEX BAFFLES TEMPORARY SEEDING SUMMER (May 15 -Aug 15) CONCRETE BLOCK German mltlet 4D lb/ac FRONT VIEW FALL (Auy1 15 -Dec 15) Rye (grant) 120 lbfac A WINTERiEARLY SPRING (Feb 1 -May 15} NTS Rye (grain) 120 lb/ac NTS Korean lr+spedeza 50 lblac Lime 2000 lb/ac 10-1D-10 750 lblac straw 2000 lblac 3' FILTER DIAPHRAGM-Use a fine PERMANENT SEEDING GRASS-LINED CHANNELS sand and ravel a re ate W1 Tall fescue 175-200 lblac 9 99 9 2x for fiter materials. ~ Kentucky hluegrass 20 lb/ac Rye 40 lblac 6„ Lime 4000 lblac Pipe ~ E ~I,~ji- 1D-10-10 fertilizer 12D0 lb1aC ~~~I~' straw 4000 lblac _-1 I 1' J I ~ ~ L THER RFA E I_ AL 0 SU C S Tall fescue 130 1b1ac - Kobe lespetleza 10 lblac 2x H2 Rye 40 lblac Lime 4000 lblac pipe ~ H1 10 10-10 tertilizer 1000 lblac straw 2000 lblac 12" ~ 2~, 6„ A w2 NTS FRONT NOTES: 1. ALL CONCRETE SHALL BE 4000 PSI MINIMUM. PSI MINIMUM. GENERAL NOTES: 2. REINFORCEMENT STEEL SHALL MEET ASTM-A! EET ASTM-Afit5 GRADE 60 WITH 2" 1. ONLY DISTURB CLEAR OR GRADE AREAS NECESSARY FOR CONSTRUCTION. MINIMUM CLEARANCE. FLAG OR OTHERWISE DELINEATE AREAS NOT T4 BE DISTURBED. EXCLUDE VEHICLES AND CONSTRUCTION EQUIPMENT FROM THESE AREAS TO PRESERVE NATURAL VEGETATION. INSIDE PIPE , 2. CLEAR AND GRUB AREAS TO SE FittED TO REMOVE TREES, VEGETATION, _ eal Iru RnnTC nR nTUro na icrTlntilaal c uaTl-Rlel Tuer wnrn n >S~rmr 60' DIAMETER MUNI-. uis. wl wz THE PLANTED STABILITY OF THE FILL. 12% 15", 18" NO. 4 2060 44" 64" » 1/2- 3. PLACE FILL IN LAYERS NOT TO EXCEED 6" IN THICKNESS AND COMPACT THE 64 23 42 1/2-18 27" LAYERS AS REQUIRED TO TO REDUCE EROSION, SLIPPAGE, SETTLEMENT, OR 21 24" NO. 4 3100 50" 85" USE #6 REBAft ~ I" 85" 31 56" 24" 33" OTHER RELATED PROBLEMS. 4, KEEP DIVERSIONS AND CHANNELS AND OTHER WATER CONVEYANCE MEASURES 6'O.C. WITH 2" 1.5' ` 27", 30", 36" NO. 4 5940 " 64 108 FREE OF SEDIMENT AT ALL TIMES, " 108" 41" 72" 36" 49" 'Odom CLEARANCE " 42", 48 NO. 4 8040 79" 150" 5. ROUGHEN THE SURFACE OF ALL SLOPES DURING THE CONSTRUCTION OPERATION " " » " » TO RETAIN WATER, INCREASE INFILTRATION, AND FACILITATE VEGETATION &ASSOCIates 150 52 79 40 64 ESTABLISHMENT. " » » Engineering, Inc. 54", 60", 72" NO. 4, NO. 5 16000 105" 161 161 60 90" 48" 9O 6. PERMANENTLY STABILIZE ALL GRADED AREAS IMMEDIATELY AFTER FINAL P.O. BOX 1787 GRADING IS COMPLETED ON EACH AREA. APPLY TEMPORARY MEASURES ON ALL ' 54' GRADED AREAS WHEN WORK IS TO BE INTERRUPTED OR DELAYED FOR 15 SHELBY, N.C.28151 PRECAST CONCRETE HE USE 4000 PSI HIGH EARLY "BETE HEADWALL WORKING DAYS OR 90 CALENDAR DAYS. 704-484-3778 STRENGTH CONCRETE 4" CONCRETE SPILLWAY DATE 06-11-01 THICK NTS DROANG NO 01023 SHEET 2 OF 2 _ _ carcyrq-roppup `~~ru~irrUrr sides of illwa rr sP y ~ I+- ff ' v, m- ~ ~ _ t of berm ,$5 washed stone 2 ` ~'S1 r',, evo ion o s ormwa er c' 1' freeboard min ~ O~ 2, ~ + ,T. I , -r, ' 470 ; , I ; ~T ~Ti '~T~ i I I ~ ~ I ~ I ~_I ; - i. I ili ii + j ~ s li II 3' - ~t' ~L_~;-~-~-- - - 468 ~ 1- - ±-I-!-! ~ ; ~ I ~ . \ ° Cpl-. 1 i~lI~iilil .,.i ~ i it I ~ i I~ 466 ` ~ ~ ~ r-r-r-r-~, - r+-~ - ~ ~ - I ~ ~t I ~~f- ~ 1 - _ - i t~ aao = s" , 464 ~ ~ i i I I , i 1~ l ( Imo' I I I I j I. , ~ I i ~ ~ , o ~ F p , d 1 E ~ maximum lewd of key in bottom layer ~ d ~ f -f „ , I I 1-, , ~ i .III II i - - i I I ,i i 462 ~--a---~-`~ i ~ ~ ~ _ _r ....._---rt - r ~ ; ~ ; ~ T ~ I I I I~~ I i f i~ I l i t I i 1 I i I I I I I ~ I I hn~daxo' •nx rrxtm' ua ~ ~ ediment collected of n rap , , ~ oa•+ nE auvc rnaao[s - ? basin when this p- ` r, I D ~ ~ i i I I i i iii ~ i i li i i I ~ ~ it , - - 460 ~ -1-, ,~-I I I ~ ~ „ i ~ a- i i I I { I ceoaES 71MT N71 GaCli sue, ~ m ° lewal is reached r r r r r, r y ~ t ~ w~xi wa ~ a ~ ' ~ ® ~ SECTION THROUGH BASIN AND FILTER / U S I , I ~ f i I ~ ~ I I I 458 I i ! ~ carry ~-ra~ up n, l ~l J a_~-1--1--t k-1-~1-z_~ ~ L_ 1~ _~_l_Lli t 1-~- - ~ L _ ~ I- ~I ~ I-~ ~_l ~ - - t I , ~ ~ I ~ ~ { ~ , I TIC I'IIll~~li I illl Iill I I I ~~I ~ I i~ ii i1.1 ~ U , i i I ~ 456 -t-t7 I L • ~ ~ ~ ~ j ~ _t~ + ' ' - - ' i , ~ I TR?ClD7'IG i ~ sides of spalway V d50 = 9" _ _ I rip-rap i ~ I ~ i i ~ I t- i i ~ i i i. i i I~_.i-1. _ ii t,-. i.. _i { f a, t~ ..L, { 1-__ i i. 1. i~ i l 1 a-t l I I ~i I , 4541 I i i I-1 I I r I i I I l i i l l i i i~ LI --I- I I I I I~~~,I I~ III i i I I I (i_I I I V I I I ~ i i i I I I I I I I Ii - I I t' freeboard m' ~1vI~"II'i~'~~P~'II7Ci~T3 ~ ~ i i ~ -~-~-r ~ I I r--I i ~I 452 ' 11 ~ ICI ; e L I ~ - ~ ~ ~I~ I ~ 3' MIN. I III ' • - ~ i I ~ __-_1__r-t I I ~ - 450 ~ ~ ~ _ ~-F--+-H-f • ,i r~ - I I /5 washed stone) ~ ~ ~ i I I r li i1, I~ sl- I i - i Ifi f i~ i { .~L~ ~ I ~ ~ ~ ~ I i I I . ~ ~ .I I u {i I III _~I I III' II I lily ~ 448 I . I t 1 I I I I- ~ I ~ ~ I -~--.-1 I~ ~~-1-i Iii' ~~i~ ~7- ~ ~ - I ~ ~ i i h----'~ - ~ i dam width - - - - - - -1 ~_L. i - - - - - t - ~ I t { -1T { -i-F-I ;--r t -f t r -,-r , t-i--- -t f , + ~1 i ~ i • H-;-- ~ ~ ~ ~ ~ , ~ I-r-r- I 446 ~ ~ I I , so ~ s' ~ ~ SECTIDN TOUGH BER![ AND FILTER -I--F I 1 ~~~i ~ , , -~-I-+-E-+-I--+ ~ ~ I 444 ~ _T - T-f ~ I I - - --r ~ I ; I , I I ~ I tl ~ 11 - ~ t ~ ~ { 1 i I ' ~ ~ i 1-T ~ i ~ I I I ~ i 7 1 1-i~' I I ~ I I I ~ ~ I I! II, i ~ ~ ~ _ ~ - _ _ i 442 ~ . ~ ~ I I ~ I $1- r I I , ~ ~I I ,ti, ~ g' I , 1 , , . 8 , A - ~ I I~I~ I 440 ~ I ~ I ~ ~ I r I + I • ~ i_I ~ i ~ , , , , ; ~ ~ I i ~ ff1 e o' 1 I 1 caoaa wu a>cx „ ~ ~ it ~ r~ i ~ L ~ I i~ - ,-i~ ' i I~ ~ i 1~ ~ i r 438 III ~ ~ i t; I I scm, r[m~, wua+, ~ . i i eat ai _ awrrru Na r ear ~ T ~ (_~I_ ~r I i I , 436 - - r t _r_,_T_,___T-+ _.t_.... ~ r - ~I ~ ~ ~ t - ' ~ { / b~ d~ ~ r~' is • i i an,,~ 1 - Mr i~ ~ ~ iltlli I ILIi i 7 i i, i i i I. i i i s I , i i i I I n. - -i ~ r-~rr~i-- ~ ~ , i~l I ~ ~ coNTOUR x~ROIls I ; h-~ 434 1-rr I t fi-r t t I l ~ - ~ ~ ~t , t- t L t I tt , , I aso = s" ~ TEMPORARY I • SURFACE ~ r~-rap SEDIMENT ~ 432 ~ ~ ~ _I ~ I r , Ire,--' - ----~-~-I- i - - r~ - I ~ t-~-F-r-u ~ ~~~{{{I{.G_ ~ ~ ~ I, s ~t~ ~ -I I ~ ~ I II _r _ ROUGHENING I I TRAP ~ PERSPE(T1VE VIfil1 ~I - l 430 Imo-, ~ ~ I ~ ~ . ~ ~ I ~ ~ , ~I~ I I 1~_. ~ ~ rt - I -i t 1-y-* Imo"-f-~1 4 - - i± - , I I ~ ~ - - 428 ` -I," I . -~I-~~ t1 f- I F1-rr ~ I ~'_t~~^ I x e I - CONSTRUCTION SPECIFICATIONS CONSTRUCTION SPECIFICATIONS ~ 426 ' I i' l ~ i ~ I 1 1 { ~ ~ ~ ~ ~ 1 1 ~ I ~ '~-l ~ 1-~. I ~ i I I I I , 1. Clear, grub, and strip area of all vegetation and root ni - ' 4 .H-~~t-t , 42 t--- -rt ~ ~ I ~ FILL SLOPES material. Remove all objectionable material. ' h and 2. Ensure fill material is free of objectionable material. { i I i 422: ~ ~ ~ ~ ~ ' ~ ~ , I ~ II ~ ~ I - ~ ~ I I ~ I ~T-~-~ , I r ~ „ , I I , I ~~I - i 4, ~ I I I ~ ~ ~ I I I l-L I I , DATCW ELE I i i ii it - - - I 1. Place fill slopes in lifts not to exceed 6 inc es rl cam acted. Place fill in 6" lifts and machine compact. make sure each Irft ~s grope y p I 420.00 j ~ I ~ ~ 2. Ensure that the face of the slope consists of loose, 3. Protect connection between riprap and soil by using [y a~ I i I I o oho ~I ~ ri cv! N, uncom acted fill 4 to 6 inches deep. filter fabric. Extend fabric across spillway foundation and P 3. Groove using any appropriate implement that can sides to top of dam. rn ~I n r~ M~ M~ r11 dl ~I ~ be safely operated on the slope. Do not make grooves 4. Clear pond area below dam for sediment cleanout. less than 3 inches deep or more than 15 inches apart. 5. All cut and fill slopes should be 2:1 or flatter. fy 4. Do not blade or scrape the final slope face. 6. Ensure stone section has min. bottom width of 3' with I I li _ - , i ~ 1 _ I max side slopes of 2:1. CUT SLOPES AND UNGRADED AREAS THAT NAVE BEEN 7. Ensure weir is level and constructed to grade. _ - _ _ o+oo ~+ao 2+00 3+00 CLEARED AND GRUBBED 8. Material used in stone section should be well-graded w rooves b normal mixture of stone with d50 size of 9" and max size of 14°. 1. Roughen cut areas to shallo g y - a 'I' diskin harrowin or use of a culti acker 9. Ensure spillway extends past #oe of embankment until tll ing, g. 9~ p stable conditions are reached. Keep edges of stone outlet seeder. Make the final pass of any such tillage on the contour. flush with surrounding ground and shape center to confine H implement outlet stream. - HORIZONTAL SCALE- Y _ ~ VER1zCAi, ~.l~E p' ~ 2. Make grooves formed by such implements close 10. Direct emergency bypass to natural, stable areas. together 10 inches) and not less than 1 inch deep. slue rou hness is undesirable. 11. Stabilize embankment and all disturbed areas immed- 3. Exces g lately after construction, including embankment, emergency Immediately seed and mulch roughened areas to obtain spillway, above the sediment pool and downstream. optimum seed germination and growth. Periodically check 12. Mark cleanout level in field. the seeded slopes far rills and washes. Fill these areas slightly above the original grade, reseed and mulch as soon as possible. 3.3' 2"~b TRASH SCREEN 3" ANGLE IRON 3.3' ~1 SLOPE OR FLATTER MAINTENANCE PLAN 3' MIN COrrIPACTED S0~ 1. All erasion and sediment control practices will be chrcked for stability and operation following SUPPORT BRACKETS FOR FILL every runoff-producing rainfall but in no case less 1~W than once every week. Any needed repairs will be VALVE CRANK 3.3 r' ,Ili ~ ~ made immediately to maintain all practices as 30" RISER ANTI- nii~l,-lil~j),~u-iC,i~ i ~u ~~luli-~ihu~~lr n Ibi~li~ii i i - i i-il~i.~ i-n i i i~L deslgnf+d. ~"J =a'~ 2. Sediment will be removed behind the sediment VORTEX 13' 9 MIN when it becomes about 0.5' dee at the fence P BAFFLES ~ 3' TYP. fence. The sediment fence will be repaired as necessary to maintain a barrier. h TEMPORARY BERM DETAIL 3. Ensure temporary sediment trap is cleared once 8' . s ~ TOP VIEW sediment reaches cleanout mark. - _ 4. All seeded areas will be fertilized, reseeded as necessary according to specifications in the veg- etativF plan to maintain a vigorous, dense, vegetative cover. NOTE: ANGLE IRON STRUCTURE TO BE ° ° ° CAST APPROXIMATELY 1' MIN INTO 1 MIN a , ° TEMPORARY SEEDING ' THE RISER ANCHOR BLOCK. a ° e e FRONT VIEW TOP VIEW WITH RISER AND SUMMER (May 15 -Aug 15) Garman millet 40 lblac ANTI- VORTEX BAFFLES BETE OCK CONC BL FRONT VIEW FAIL (Aug 15 -Dec f5} Ryrr igrain) 120 lblac 4YINTERlEARLY SPRING (Feb 1 -May 15} qye (grain) 120 lblac Korean lespedeza 50 lblac NTS NTS L,,,,e 2000 lb/ac 10 10-10 750 lb/ac straw 2000 iblac PERMANENT SEEDING 3' GRASS-LINED CHANNELS Tail fescue 175-200 lblac FILTER DIAPHRAGM-Use a fine W1 Kentucky bluegrass 24 lbiac sand and gravel aggregate ~ qy,, a0 lb!ac » Lime 4000 lblac 2x for fiter materials. 6 10 iD-10 fertilizer 1200 lblac pipe ~ E ~ ~~-i l straw 4000 lblac _-~i X11=~~ `=I I ALL OTHER SURFACES jl , Tall fiescue 130 lblac 1' Kobe lespedeza 10 lblac qyr~ 40 lblac Lime 4000 lblac 10 10-10 fertilizer 1000 161ac H2 2x H1 H1 straw 2000 lb/ac Pipe ~ b 12" 12" 12" W2 - 6" NTS FRONT NOTES: 1. ALL CONCRETE SHALL BE 4000 PSI MIS 4000 PSI MINIMUM. GENERAL NOTES: 2. REINFORCEMENT STEEL SHALL MEET AS 1. ONLY DISTURB CLEAR OR GRADE AREAS NECESSARY FOR CONSTRUCTION. ALL MEET ASTM-A615 GRADE 60 WITH 2 FLAG OR OTHERWISE DELINEATE AREAS NOT TO BE DISTURBED. EXCLUDE MINIMUM CLEARANCE. VEHICLES AND CONSTRUCTION EQUIPMENT FROM THESE AREAS TO PRESERVE NATURAL VEGETATION. 2, CLEAR AND GRUB AREAS TO BE FILLED TO REMOVE TREES, VEGETATION, _ _ _ _ MUCK, ROOTS, OR OTHER OBJECTIONABLE MATERIAL THAT WOULD AFFECT IN~It]F PIPF DIAMETER REINF. LBS. W1 A W1 WZ Hl HZ U L THE PLANTED STABILITY OF THE FILL. 6Q 3. PLACE FILL IN LAYERS NOT TO EXCEED 6" IN THICKNESS AND COMPACT THE 12", 15 18" NO. 4 2060 44" 61 1 44- 64' 23- 42 1/2' 18 112' 27- LAYERS AS REQUIRED TO TO REDUCE EROSION, SLIPPAGE, SETTLEMENT, OR OTHER RELATED PROBLEMS. 21", 24" NO. 4 3100 50" 8; REBAR USE 6 I 50p 85p 31N 56N 24„ 33N 4. KEEP DIVERSIONS AND CHANNELS AND OTHER WATER CONVEYANCE MEASURES M N FREE OF SEDIMENT AT ALL TIMES. Odom fi4' 108' 41 72 36' 49 5, ROUGHEN THE SURFACE OF ALL SIOPES DURING THE CONSTRUCTION OPERATION 6"O. C. WITH TH 2" 1.5 27% 30", 36" NO. 4 5940 64" 10 ~ N - N N N TO RETAIN WATER, INCREASE INFILTRATION, AND FACILITATE VEGETATION &Associates CLEARANCE 42", 48" NO. 4 8040 79" 15 79 150 52 79 40 64 ESTABLISHMENT. Engineering, Inc. 54" 60" 72" NO. 4, NO. 5 16000 105" 16 p p p p p p 6. PERMANENTLY STABILIZE ALL GRADED AREAS IMMEDIATELY AFTER FINAL P.O. BOX 1787 Q 105 161 6O 9O 48 90 GRADING IS COMPLETED ON EACH AREA. APPLY TEMPORARY MEASURES ON ALL 54' CRETI GRADED AREAS WHEN WORK IS TO BE INTERRUPTED OR DELAYED FOR 15 SHELBY, N.C. 28151 HEADWALL WORKING DAYS OR 90 CALENDAR BAYS. 704-484-3778 CONCRETE USE 4000 PSI HIGH EARLY PRECAST CON DAME 06-11-01 STRENGTH CONCRETE 4" CONCRETE SPILLWAY THICK N TS DRAVANG NO. 01023 SHEET 2 OF 2 DEVELOPMENT PLAN LAN FOR PITTA DA ELLENB0R0, N.C. slrrE N.C. OWNER: DELBERT PITTMA x' ['MAN X60 -r- VICINITY MAP p19191 r~~,~ s.a~e~ INDEX SHEET TITLE SHEET YdQ M78 RCVffiKIPT ID~SCA4IPIYOt~I PLAN/ECP 1 DETAILS 2 ~~,'N. ~ f....,,~ 9 ~ Odom &Associates Engineering, Inc. P.O. BOX 1787 SHELBY, N.C. 28151 704-484-3778 JUNE 20, 2001 O1 RECEiVED V4P-7ER OIJAI_ITY RECTION L4?w ~ L.e Non-Discharge Harrniting ~,4 l 7 ~ Z~ o ' a o. - o' ~ ~ c °?~1` ~ 30 , 4 o~NEE~ t~,,9pJ~ ~ ~0 D 0 i - - ~ ~ ~ % ~ ` W • j', l ~ ~ LENGTH-1f0' T- i ~ 1NID H 56 V 1 • DEPTH-2' WEIR-10' w ~i ld r -7 w DELBERT D. PITTMAN and wife DONNA L. PITTMAN 764/385 ~ ' ~ - ~ ~ . ~ _ 1, H = ~ ~ 1 ~ ~ ~ ~ - t A ~ _ ~ ~ `i ~ ~ ~ ~ ~ ~ ~ i~~ ~i'-~1i ~~i ~i = TEMPORARY DIVERSION BERM C)p TSP - - 0, 'N ' 1~ D -56 ` t CLEARINGUMITS ~~~r ~ ~ 1 DEPT 2' ~ - ~ ` _ WEIR-1 ' - ~ ~ ~ .~~u~~~i ~ ~ ~ * ~ TEMPORARY SEDWEMT PIT ~ ~ ` ` ~ , \ - r V A ~ A a 1 ~ ` ~ M--r - ~ ~ 1 V ~ ~ ~ ` Oa - - - ~ ~i ' i i 1 i i ~ ~ ~i ~ ~ ! - i ~ - l ~ ~ ~ l ~ ~h ~ ~ ~ ' I', 1 JSP #4 30" 15ER IPE ~0 ~o. _ i I ~ LENGTH-10 ' -,,~F Thh 50' z, DEP =2.' i ' i WEIR- t,1~ _ - - - . ~ ~ ~ ~ i~' - / / / - _ / ~EXT€ND~CONCRETE~SPJ~LWAY / ` ~L 10' PAST THE-TOE OF SL1~RE / TS #1 ~ \ 5'. LENG1` 30' ~~--OE THE DAM / S / I W~DTH~ / S / 4 ~ . DFPTH~ , N .r..' / ` / IR-4' . / 1 / R / ~~I / ' / ~ / ~~A` 1 1 / - - X~, i l ~ ~ / = ii ASP #2 ` , - ~ ~ LENGTH-35' ` #2 / NTH-35; / -ii- ~ , _ WIDTH-19' , ~ , TN-i9' V~,'~-,~ - / = ' II DEPTk-2' ? ~ ~r I ~ ,WEIR-~4' 'T)d-2' / \ / .IR 4' ~~1. ; , ~ _ / ~ ~ pl i~ / = DELDERT D. P~TTMkj~! i bad wife - ~ / - / 1- ` ~~~~~OONNA ~C., PITTMAN - ~~i~r I 526 596 / ~ w ~ DELBERT D. PITTMAN / ~ and wife DONNA L. PITTMAN - ~ w 526/596 ~ m \ ' ~ TSP #3 / LENGTH-62' z _ ~ / 1MDTH 32' / DEPTN-2' rc ~ ~ / / WEIR-4' ` i ~ L I I I I I I J ~ Odom Associates &Engineering. Inc. GRAPHIC SCALE P.O. BOX 1787 / 50 0 25 50 100 200 SHELBY, N.C. 28151 704-484-3778 1 INCH = 50 FEET DATE 06-11-01 DRAVAM NO 01023 SHEET 1 OF 2 - carry rip-rap up - BASE TO BE 6 OF sides of spiliwoy \,`\`riut/n~ii,r1 - = - t ® WASHED STONE WITH 24" top of berm rY5 washed stone 2 ~ ' ,'CA~ 4' ~O ' v „~„r" °~;;.p OF RIP RAP ON TOP op elew ion o s ormwoter 1' ireeboad m~ I ~ wy r, ~o - o - _ $ 47O j r~~ ~ + r r~T ~ ; --f--T r ~ ' ~ I i ~ TT - --T-r-T , - r - - ~r r r ~~T, r-~ I I + ? ~I ii i; T r~~ - i I I ii I i' 1 i _ i ~ ~ I~~' ~ , ~..°~~m1 ~ . o M o o •o ° ~0 0 0 468 ~ +y~ 1~ ~ ' ~ I i : _ ~ ' ~ --i_ I ~ + ' „ ~ ~ I I I I - a - 466 I ~ - '-I- I r,-,-,~T,~~-,, -I-~-~-,- -~-;-I1 1 r-~-I-1 r_ r .~-r-F-r~ 1 ,rt ~ ~-r~ tr+-~-I-~~ 1 rt r ~ r ~ ~ ~ ~~"I ( r l I ~ ~.-~r I ~ I i i { ° ~ ~ ~ o ° - stir ~ ~ , ~ , ~ t' d5a = 9' , a a , ~ ~ iii,. , FILTER r(p rap 464 ~ I ! ~ . ICI '-?I ~j~ I', I~ ~ f I 1 I I ~ I _ i i ~ ~ ~ ~ ',r.~ I I }r-----~~~ r~~~ rt;.~~I __+.I 1 ~ I-{--1 t ~ ~ I ~ ~ I I ~ I - . ;`_~~i- + ~ r ~ -C_ i ~ f i i I i I - MATERIAL maximum level of ' d INE ~1 wrtri MrG{.~R,• ~ ii key in battam layer , 9 Q ~ ~ dimeat cdlected G i ' i + , ~ l ' -i- , ~ 1 ~ ~ J-J L 1 I . Y ~-+-r-r r~ t .1.. ~ . ~ t t 1 : ~ I~.._I-1 L-L_l.- ~ ~ -~L~+-l--!-.{--~- 1 1 ~ ~ I r _ - -t- i ~ r ~~i~ ; ~i r i li r 462 r- I I I ~ I-~ ~fi rt }1 I ~ ~ 1-r ~ i ~ } ~ - ' , ; ~ + ~ 1fi ~ I I I ; , 1 T fi I I =r I , _1_I 1- I .T~-~_~~ ~ Ia7_(~k4~k . , r- -r-~--' , r rr-r-~r+ ~-r~ --ter i+r rt r i-~r-~~...i-r+~-r~-~~-t- -t r r ~ r- - _ i~-- ~ v '~I~"~ it i i ~ ~ ~ ~ i i ~I~ - i~ i ~ i i ~ i i ~wD Dawn THE Hoff vROVnES . ~ =a ar np-rap J ~ , V` - con bosh when this ~ ~ Q Cfl00~ES 1HA7 NQL CATpI SEED. ~ ~ m - IeVel IS reoMed ~ ~~<<~ r i„~~~~ PlkYttl IND AEDIICE RIINDFF. ~ ~ I r I I ~ _ 6O i i I i I ~ r ~ i i ~ __i . ! ~ i I ~ ! ~ ~ ~ - ~-I -I ~ ~ 'J-+r. _i i I'I I ~ I' ~-~ll I I I I I ~8a ~ ~ F~-,~~+~ ~ r ~-r ~ ~ SECTION THROUGH BASIN AND FILTER SECTION Gary rip-rap up 458 { I 1 r +~-r~- 4 t t r I i -i ~ r}~ r- ~ ~ ~ I f r I t~, r r ~ ~ ~ I I I I I f ~ ~ 1 I I I 'III r~r , i. -r - 1- . , : : I I 1 I I ili i :-L ' i i I_ I I i I I i I- - I~ ~1y~_' - ~ i. 1 i i, + _ ~ I I -t.__{. ' i. !-.y r _i +r-y-, - r r _ ~1 + r ~~-err- _ Y. I + I', - i ~rr-r + ±rh l Y~ rtt 11-- TRACKING sides of spillway I 456 ~ ~ ~ ~1 i ~ I rt~ I II t~ ~ :rt. ~~1 I i ' i I i IE, _ ~ ~ ~ _ ~ I ~ I I - - ~ r ~ ~ ~ ~5~ I ~ ~ 11_~ _7 I, - ~ t-i ~,-I~~~~ ~ - „ I - ~l ~ i i -4 : '~I : i ~ r_}_i-' i ~ ! ~ _ r ' i, , .l , r { i I ! ~ I v ~ I _ I I , i_ _ -~-F,.-. L _ d5o = s° rip-rap r ` ~ ' + F { ; i , I I I r ~ a2-+ ~ I I t } ~ ~ ~ ~ I + f 7 ~ } ~ ~ ~ ~ ~ ~ ~ fi' ' ~ t+ I _ I I 1 I I ~ ~ ~I i I 1 454 ~ + + 1- i i ; ~-r~' t ~ I r~ I r ~ r ~ ~ ~ ~ ' i ~ ~ i ' ' 0.5 DIA Lo ~ 30' II I I 1 freeboard mi I ' ~ d-"1~]~Ti IiIF1~~A~°"°I'~~°~ 452 r I t ~ i i t ~`~-Ir* ; r 1 I - r i ~ i I - rT± ? j -~-r I - I~ F1~' + ` t I i I I ~ I i { r~'T---. I i ~ ri ~ i I MIN. 'D' =PIPE DIAMETER I i I ( o ° ° ~ 3' MIN. I i"~1_ I ~ ~ '-rTtT1-I~+,' ! - h ~ a_L I ~ _ _ i -~..~-t~~ I i ~ ~ i I i ~ ~t ~-1- i i I I 450. r,; , , - - ~~~00 • ~ o^ ° p5 washed stoney 448 I~ ~ '-~+fi ~ ~ ' ~ + r----rf f - ~ --~---r----- ~'i~-'~-j ,-"-ITT' I I I~ I~~~I,~~ I +~I ~ ~I + ~i ~ -NT 0 o dam width ~ ° ~ • ~0° 0 •o e°o ~41i 7NNi0II6H BAY d1iG il~,Tl~ i r~ I _ ~ F - , ~ ~ T I 446 'I~- ~L I ' i- I _ 1..+ 1 ! i t ~ i ~ I ~ i -iH T+,. ,~,Tt ~ , •-r-r-~~.I ~ I. 7._I~r ; + ~N `r4~o0~8dq, p0 ROCN d50 a~o0° ~aQ r ~1-~-1-1~ I r-~-~-~ I 444 7-,~_--~~. t -C-`~ i I I 1 I I, I ~ - - ~--1~, ~I. ~ ~ i I ~ iJ~~,~ ~ ~ ~ - ~ ~ I ~ ~I I . °D' (T° 50S SHALL ~ LARGER ° 9 4.0 x 'p' . ~ ~ THAN fi° (MIN.) DIR. ^~r~~0 • ~ ARN. ~ 1 1 po0~ iJO~~ as / Q' I _ I ~ . i- I 7 LE s L I I I tl t I I I C I I 442 ; i`"~-~ ` i ._i~ I + i _ ~ ~ ~ t t ~ ` ' ~ ~-:~1-i I _I 1 +t~-~++ 1 I I I li ~ - : + rbo • a~o j~ (~gx~(q~Oo• •O 44 'Y i J I t 1- . I J-1 J + ~ I• r i 4T 8 I~ ~r i~ ~ ~r- I~ I IrIJ r L.. a ~ I i ~ I 1 I ~ I l F I I i~ ~ ~ I I~~~ ~ ~ I, i~ I O i r_r_~ t ~ , ~1 r I i i CROOYES Nll CATCX t~ ~ T / RED. FERRIZER, MULCR ¢ • w,Q° ooa ° oa / ~ ~i t ~ ~ i I t ~91ti5-~ ~ I I I - ~ I I I III - III I ~I ~ ~ ~ + _ , + ~ ~T f ~ - { f I + 4 ~J-+ { + I i i~,--~--rl I ~ ' _ _ ~ ~ ' + ~ ~ t ~ I ~ I r„. + , AND DECwusE I •po a A° ~1 °.0 ' o. ~ ~ e~ ~ ~ °/1_x: i~ : ~ I ~~n ~ Int"~°~'~ I ~ 2 P1 I I ! is _ ~ ` ~ ~ ~ ~ - ~ ~ ~ t~ 436 i._~I_~-1i~~ ~..'-~._~if~~~Y~1~ a_~~l ~i_.t i_-_~-~~~~ ;_}~_i-~~..~.. i i~~ll !_r:I.,,~. ~ ~;~_f i ~ ',---r-;~~+,--1-I-~-r-~-}--t-I+~,,~~-F-~r' f~-I--~-*.-t_I-`~~~+-~--~-~ i / ~ ~ I II 434 . 1t t { 1 t-r-I~t-r± f ~ I t i f ; , : ; ~ I 1Tf!t' ~ ~ 1- ~ ' ~ ~ ~ ' DUR FURRO119 - - ~ / / \ 1~/ ~ CONT 1 PLAN ' ~ I~ ~ ~ ~------r' ~ tom' ~ I I - I r i ~ ~ ~I 432 ' L I~ E I{: ',~,I-- + ~ ~ ~ ~ I r I I ~ u. -I ~T ii i r '.t' iii 1,i ~i ~ --r-r~ G 'r-I-~ i ~T SURFACE i ePOr~g' TEMPORARY I SEDIMENT '-~-~-"---r-r-" r r--r+-~~ - I T i i ~ i I I i 1' fi i n I I 430 ~ 7-~t~ r i I r ~ t ~t ~rt"_" "~~rtr ~ i ~ G I:. 7 S T rt-~-r- r i I a ROUGHENING TRAP i NOTES: ~ I - -rr-T--t -<-a-~-~r~ ~ ~ ~ ~ ~ ~ IL B I r I-i-~ i a i l -----T---L ~ i i ~ ~ ~ I i 1 ~ A I I I I I it ~ 4 28 I I i i ~ ~ °"~0r°' 1. 'La' =LENGTH OF PPRON. pISTANCE 'Lo' SHALL BE 30' ~-~r-. 426 ~ ~ ~ ~ i ~ . ~ I , -N ~ ~ + + ~-1-Y-r~- ,1 + ' CONSTRUCTION SPECIFICATIONS 2. APRON SHALL BE SET AT A ZERO GRADE AND ALIGNED STRAIGHT.. THI x CONSTRUCTION SPECIFICATIONS 3. FILTER MATERIAL SHALL BE AN APPROVED FILTER FA~tIC WITH A 6 C (MIN.) I ~ , I I i ' 1 i~~ ~ ~ ~ ~ ~ ~ _ , I ! ~ ~ ~ I ~ ~ I ~ ~ _ I - I~ --~i,---- r'~ ' ! i ~ , 'ter ! ~ + + I _I + I ~ ~ 1~ ~ } r ~ + ~ + t rt~ + , F~~ ~ ' ~t ~ + 1--+ _ T~--~ , i ` -~-t-~-r±~ I-T i f I trt~ rTT~ I t 424 ! r t t-t } , i I ~ ~ I`~rt ~ 1, ~ i t 1 _ ' I- , a ~_t__~ ___~_~_~-T~~_~ i_ ~ _i III . ! _1 ' ' I~ + ; r; +-1=~ + ~1~i FILL SI GRADep GRAVEL LATER. 1. Clear, grub, and strip area of all vegetation and root ~ FILL SLOPES material, Remove all objectionable material. a T ~ ~r~ ~~T 4 , ~ ,+~r l . ~ i I i ~ + r r~T---~- ~ i `~C - r _r-~ _ N ~ 1_ ! I i i i I { I ' 1. Place fill slopes in lifts not to exceed 6 inches and 2. Ensure fill material is free of objectionable material. 17ATU~ '-Y I.1_.~ -l ~-±±~-I-i,...-r+ f F t ~ I-~ ~ ~ r~ I i 1 i m( 2. make sure each lift is properly compacted. Place fill in 6" lifts and machine compact ~i ENERGY Pr nnection between ri ra and soil b usin 2. Ensure that the face of the slope consists of loose, 3 oteci co p p y g ~ 420. un uncompacted fill 4 to 6 inches deep. DISSIPATOR filter fabric. Extend fabric across spillway foundation and c~ rn v M o 00 3. ri acv be 3. Groove using any appropriate implement that can sides to top of dam. ~ i; be safely operated on the slope: Do not make grooves 4, Clear pond area below dam for sediment cleanout, C 00 +D I~ M M M M M 1ec M M M d. d d d less than 3 inches deep or more than 15 inches apart. 5. All cut and fill slopes should be 2:1 or flatter. a ~ d ~ 4. 4, Do not blade or scrape the final slope face. 6. Ensure stone section has min. bottom wid{h of 3' with max side slopes of 2:1. CUT SI CUT SLOPES AND UNGRADED AREAS THAT NAVE BEEN 7, Ensure weir is level and constructed to grade, Q+pp 1 +00 2+00 3+00 CLEARI CLEARED AND GRUBBED 8. Material used in stone section should be well-graded 1. till 1. Roughen cut areas to shallow grooves by normal mixture of stone with d50 size of 9" and max size of 14". i ruse of a culti acker- 9. Ensure spillway extends past toe of embankment until tilling, disking, harrow ng, o p se' seeder. Make the final pass of any such tillage stable conditions are reached. Keep edges of scone outlet ~ ~ ~ ~ = im TI SCALE- 1 10~ HORIZONTAL SCALE 1 ~ 2. VER CAL implement on the contour. flush with surrounding ground and shape center to confine M..~ 2. Make grooves formed by such implements close outlet stream. to, together t0 inches} and not less thou 1 inch deep. 10. Direct emergency bypass to natural, stable areas. 3. Im 3. Excessive roughness is undesirable. 11. Stabilize embankment and all disturbed areas immed- Immediately seed and mulch roughened oreos to obtain lately offer construction, including embankment, emergency op optimum seed germination and growth. Periodically check spillway, above the sediment pool and downstream. th' on the seeded slopes for rills ~11Td washes. Fill these 12. Mark cleanout level in field. oreos slightly above the original grade, reseed and mi mulch as soon as possible. 3.3' 42"~ TRASH SCREEN 3" ANGLE IRON 3:1 SLOPE OR FLITTER 3.3 MAINTENANCE PLAN ~ INN OaIPACTED SqL 1. All erosion and sediment control practices will ~ gg' = , a be checked for stability and operation following SUPPORT BRACKETS FOR INN every runoff-producing rainfall but in no case less VALVE CRANK 3.3' . .~O than once every week. An needed repairs will be ~`~i",~'~~nGi , I r Y 30" RISER ANTI- ~ I~IE~I Ik~l I I I I I ri mode immediately to maintain dl practices as ~ ~ ~ ~ ~ I~~~I~I~II II I pI~J ~ I desi ed. i~Jlgl , I~I~I~gI ~ I~ 9n VORTEX 13' I~ 2. Sediment will be removed behind the sediment 9' IIIN --~?I fence when it becomes about 0.5' deep of the BAFFLES 3' TYP. fence. The sediment fence will be repaired as T necessary to maintain a barrier. TEMPORARY BERM DE AIL 3. Ensure temporary sediment trap Is cleared once 8' TOP VIEW sediment reaches cleanout mark. 4. All seeded oreos will be fertilized, reseeded os necessary according to specifications in the veg- etative plan to maintain a vigorous, dense, vegetative cover. NOTE: ANGLE IRON STRUCTURE TO BE ° ° CAST APPROXIMATELY 1' MIN INTO 1 MIN a , TtMPOAARY SEEDING ° THE RISER ANCHOR BLOCK. T W WITH RISER AND ° FRONT VIEW OP VIE d ° SUMMER (May 15 -Aug 15) ANTI-VORTEX BAFFLES CONCRETE BLOCK German millet 40 lblac FRONT VIEW FALL (Aug 15 -Dec 15) Aye (grain) 120 lblac WINTERIEARLY SPRING (Feb 1 -May 15j A T T Aye (grain) 120 lb/ac Korean lespedeza 50 lb/ac NTS NTS Lime 20D0 lblac 10-10-10 750 lblac straw 2000 lb/ac PERMANENT SEEDING 3' GRASS-LINED CHANNELS FILTER DIAPHRAGM-Use a fine Tall fescue 175.200 lb/ac D Kentucky bluegrass 20 LbraC sand and ravel a re ate W1 9 99 9 Rye 40 lb, ac 2x for fiter materials. 6„ Lime 4000 lbiac 10.10-10 fertilizer 1200 lb/ac i e sfi E PP =111~~11 straw 4000 lb/ac _ III=III= =i IIIi~ ALL OTHER SURFACES I I (-I 1' I-~~ Tall fescue 130 lblac Kobe lespedeia 10 Lb/ac Rye 40 lbiac Lime 4000 lblac H2 2x H1 10-10-10 fertilizer 1000 lb/ac straw 2000 1blac pipe ~ 12" 12" 6" W2 T N NTS FRONT NOTES: 1. ALL CONCRETE SHALL BE 4000 PSI MINIMUM. 'SI MINIMUM. GENERAL NOTES: 2. REINFORCEMENT STEEL SHALL MEET ASTM-A61 w 1, ONLY DISTURB CLEAR OR GRADE AREAS NECESSARY FOR CONSTRUCTION. ET ASTM-A615 GRADE 60 WITH 2 FLAG OR OTHERWISE DELINEATE AREAS NOT TO BE DISTURBED. EXCLUDE MINIMUM CLEARANCE. VEHICLES AND CONSTRUCTION EQUIPMENT FROM THESE AREAS TO PRESERVE NATURAL VEGETATION. 2. CLEAR AND GRUB AREAS TO BE FILLED TO REMOVE TREES, VEGETATION, MUCK, ROOTS, OR OTHER OBJECTIONABLE MATERIAL THAT WOULD AFFECT INSIDE PIPE ~ I W2 Hl H2 D E THE PLANTED STABILITY OF THE FILL, DIAMETER REINF. LBS. W1 ~ PI erF Fu I IN I CYFRC NnT Tn FXCFFf1 6" IN THICKNESS AND COMPACT THE 12"' 15"' 18 N0. 4 2060 44 64 2 64" 23" 42 1/2" 18 1/2" 27" LAYERS AS REQUIRED TO TO REDUCE EROSION, SLIPPAGE, SETTLEMENT, OR OTHER RELATED PROBLEMS. 21", 24" NO. 4 3100 50" 85" 3 85" 31" 56" 24" 33" 4. KEEP DIVERSIONS AND CHANNELS AND OTHER WATER CONVEYANCE MEASURES FREE OF SEDIMENT AT ALL TIMES, Om USE #6 REBAR J 27", 30", 36" NO. 4 5940 64" 108" 4 108" 41" 72" 36" 49" 5. ROUGHEN THE SURFACE OF ALL SLOPES DURING THE CONSTRUCTION OPERATION 6 O.C. WITH 2 1.5' 2 &A " " " " " TO RETAIN WATER, INCREASE INFILTRATION, AND FACILITATE VEGETATION SSOC1ateS CLEARANCE 42", 48" NO. 4 8040 79" 150" 5 150 52" 79 40 64 ESTABLISHMENT. Engineering, Inc. 1 L- " " " " 6. PERMANENTLY STABILIZE ALL GRADED AREAS IMMEDIATELY AFTER FINAL P.O. BOX 1787 54", 60", 72 N0. 4, NO. 5 16000 105" 161 6 161 60 9O 48 90 GRADING IS COMPLETED ON EACH AREA. APPLY TEMPORARY MEASURES ON ALL GRADED AREAS WHEN WORK IS TO BE INTERRUPTED OR DELAYED FOR 15 SHELBY, N.C. 28151 WORKING DAYS OR 90 CALENDAR DAYS. 704-484-3778 ~RETE HEADWALL 54 PRECAST CONCRETE HE. USE 4000 PSI HIGH EARLY DATO 06-11-01 STRENGTH CONCRETE 4" CONCRETE SPILLWAY THICK NTS MAAWM NO. 01023 SHEET 2 OF 2 r...--,-- . ~ _ - - - r _ _ _ _ ~ _ carry rip-rap up ~ sides of spillway `,,~'~~~i~i~ihr, 470 T ~ r i rr~-~-r-f-'-~-T i I i' I i ~ ~ I I I I r-rr-r i = ~ ~ ~ I iop of berm ~ washed stone 2 ~ \ ~ ~ Ci~ A ! o ew ion a s ormwa er 1' freeboard min 4, • ~I~ ~T I ~ ~ tom, Tel T?T~T~~i I ~ ~ _ ICI I IIII I fll II II I~ I I I I I I ~ ~ I I i I I I i~ I I I I- ~ I t~ ~+H-~-~T I,~-,-,-r----~~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ i ~ ~ - ~ ~ - ~ z' ~ ~ ~ `P' 468 I ~-I-,~ -I-~-I--~~ I r~ I I~ ~ I I~-r-T-rr;T1 ~ ~ j i i i I ~ i i I I I i ~ i i i I I I ~ f ,I ~I ~ III ~ I ~ I IIIIII III ~ ~ ~ I I I.I.. rill ~ II'~~ I I I - ~ ,,1 ® m 9 - ~ 1 _ ~ i ® ~ \Y + 3' ,mot E 466 I ~ I ~I ~ l~ VIII _ I_lil Ililll i~ ~_I! ! II ~I~ lil I i I ~Ilal~ I gill 'til tl ~-~~r, t ~ --i--I-- ~ t rt r I~ I fit1-~~I - - I~l~ ' H ~ i ~ ~ (i t t fit-r ~r T+ 7 1- i Crt i + ~-+-+-i-+-~-+1~ I. I t I i I i i I ~ + . I - o 9LJ O Off' _ 464 I i I I f I I I I i I I 1 1 I I I 1 1 1 1 1 ~ II I I , I I I t it l_ 11-i Z , I~ ~ I~~ ~ I i I I I ~ ~ I ~ r I I I I l l ~ I I I I I I I ~ I I II I I I , ~ , ~ i I ® 1., i m ~ o e o I ~-rap d50 = 9' 462 I, ~ ~ ~ I ~ I, I I ~ ~ ~ - I~ ~ ~ r-~- ~ I ~ t-~-~ ; I 1-~-~-~t ' I I I ~ I ~ I I r I I I I 1 I I~-r-rt ('~~Iiil IIII II I~ ,iiIIII~I"'~it~r!I~ ~ I I IIII~!II~ I I ~ IIII II IIII iIi i I ~T?-i-1-??~l+ ~ I maxirnum level of G'!NE• ~1;• I in,~aouG wrx wcHSatr ur ~i key in bottom layer edim~t collected ~ ~ um aae+ t~ s<ovc asa~noEs 460. ~ ~ ~ ~ ~ ,1 ~---r-rt-, ~ r I ~ ~ I ~ ~ I I ~ ~ I I III ~ I ~t I I I ~ ~ I I I ; I, ~ ~-t~~~ I ~ ~ ~ i_ _ ~-l-L:--~- ,-i-a ._J_ ~ ~~-(--~-,-r--G-++-r + a ~ v ~ I i ! I 1 u ~ ~ , ~ ,_I ~ t- ~ ~ ,i,1 ~II~i( ~ ,II I i GI-iIiIII,'; ' 1I{I_ i GROOVES MMT MWL GIiCH 50D, ~ ~ i uuairi 7xie"n"i trii5 of rip-rap ' ~ O \ w~,ru µo RmucE me+osf. level is reached ' h ~ ~ ~ r ~ i ~ ~ 4581'1 I I,,'ai!~ I 1~~li.l~ ~-1- 1'lyda`u~-I'~I1 1- ~ll I ~ IIIIIIII~I ~j~~lI~III~II~II~II~ I ~ It.a 1 { _,I~I 111 ,i ~-~I ~ Iii I " 1 1 I ~ I_ II I C I L L I ~_11 ~ I II I ~i a.~~~1~~-.. ~ I I I I i i ~ ~ ~ ~ I i l i l i t I l i~~ i l i l i i i_ i i ~ ~ ~ SBCTION THROUGH BASIN AND FIITBR ~ 456 , ~ ~I , ~ I ~ ~ ~ ~T;~ I ~ ~ , ~ I I ~ I ~ ~ I ~ I ~ ~ ~ -I i _C. C ~ ~ I I ~ I I ~ i ~ r t-~-I~±~ I Irt t 9 11 „ pc ~ ~ i I I I ill I I I I II f III, I I I I I r tli-rrllirl t-~ ~I ' + ' I-~ I ~ i ~ -1 I_x + i ~ ~ } } ~ I ~ I f f fi+~ I I corn r' -ra u r 1~ T~~NG ~ ~ sides of spillway 454 , ' I-' { i fij~ ~ rt ~ 1-~-I-I-~ t ~ ~ f ~ L~ t 4 ~ ~ I ~ i - ~ ~ _ ! 1 t ~ _!-t~ ~h ' -1 ~ ~ ~ i;! f I. f i i i t , 1 1 ' I_, I ~ I ! I ~ I' I i I I I 1 1 1 _ --1 1-i-I I I I' I I I I I I' I l r t i i. ~ I ' .:,-T- ' ' _ ~ ~ _ _ - ~ - - - - - 1 f ~f ~ 1 f i ~ f j ~l Q`~ = 9" ~ ~ np-rap i ~~I~i ? ~ I rt ' (t ~ I I ~ ~ i l -1 ~ (I ~ ! I I H I I ~ ~ i i i ~~a 1 ~ 1-:~ ~ ~1 1~~ i ~ ~ 1~~1 ~ ~ . I i ~ 4 ~ ~ ~ i 452, I; I~, ,;I i tin ~e II I I ~ I~ ~ F.. I j I t-~ i t r. l-.j~L~-~--~- i i i, t i I~-t I f ~ i i I I I i I~ _~`~~I i I f-i t~-F I I I t-_,-f_. --I--~-t-t--~- t 1....-, ~ i t o I, I I i i i i i I I I I i i +-t t-t-~t-t -I- i--~!-~t`-~-I -~-}1 1 I ~ ~ 1' freeboard mi t ~?tm,'~C~r'~(Cf~,"il'd~aF3v~ 450 ~ - i I i i I i I fTl ~~-T~ ~ I - - ~ ~ I ~ ~ I { l ~.1__~ i.~ L ~ I I' " i ~ I l i i I I' I~ I i~ i i i I i1 1~ I I I i I~ ~t'i ~ t I ' I i I i I l i i I I I~ I i ~I 3' MIN. /5 washed stoney ~:1 III I ~ ~ I 4481 I I I i i i I I I i~~ ' I i ( i I I I C I rl n li i _ I I 1 I I ~-1-1 11_~ ' I I I h~I i i I I y I ._-L'-1~ -H_ ~ . ~ ~ I ' i i a~ i I I LJ 1 ~ I t l ~ I _ I I I ~ i v `1 ~ j 2:1 SLOPE 446 I ~ f ± ~ . I r { I ~ + }I.-- ~ t r I ~ ~ 1 , , -t E t I ~ t- ~ I- ; ~ ~ I~ 11 .I l r t f~~3 I I ~ I# l a I_ ;11.~ I r ~ '-~i ~ 1 1 ~I I ~ ~ ~ - ~ I I -I~ ~j j r 1 { ~ ~ r? ~ I ~ I I~ it C i { i r I I I i l( l f I ~ I I 50 t"r 8~ ~ ~ dam width i , ..1 ~ SECTION THROUCT3 BERM ANB FILTER I 444 f ~ ~fil~ I ~ II ~ ~I I t-~ 7-i i - I ~ ~ ~ i I I i I I ~ ~ , ~ ~ ~ ~ ~ I fi I 1- i t I I I I I I I ~~~I I i I I I I I I I I i I i I . r' I- I I I I I I 442 I I ~ I ' , F ~ I , I a { ~ , i ~ 'I ~ { ~ I ~ I ~ I ~ ~ ~ i' ~ ~ ~1 ~ ~ I I { ~ - _I ~ ~ I f ~ I ~ I I ~ ~ I ~ I r i I ~ i I ~ ; i I ~ ~ l ~ l ~ I i ~ ~ ~ I i I ~ ~ ~ ~ I i I T r1LE I~rt I II i I~~~ i I I I ~ ~ i ~ ~ i ~ I ~ ~ I I_ ~ ~ ~ I I ~ I ~ ~ ~ I _t ~ , I a ~u I I I ~~a- I' I'IIIII~III~I I II VIII ~ - ~.I~ I I. ~~;~;,Ifi1~I IIIIIIi ll~~~lli~lllll ~I ~ , ~w~,a ~ VIII I ~i ALL I ~ 1- ~ ~ ~ I j I I t s e i ~~II ~ I I J , -t-t ~ ~l ' ~ y-~-~-I-~~ 440 + ~ { I k f ~-I A a ( ~ , r ~ ~ # I~-+ ~ r r r ~ ~ • I ~ 111 ~ Iz 1 III I ~ ~ ~ I (-*-_j ' {-J ~ri-~ T I T I I i I ~ ~ T1._~ 7-r1-~---i-r-r-~- }-I i I ~ i I"7 I ~ ~ ~ i ~ T~~ ~ I ( ~I I i i ~ I I ~~17_ ~ ~t . (-s, ~r . ~ ! i I I f ~ i f l a 438 rl V I I I I r i s _ i Ii~il-IG 1I _I__I I i { i ~ I ) -I r I I r I~ ~ i_rt I GRDavES Net GTCH ~ i~ 1 I n~ , wKa+. _ ~r I I' -f t T i I i l l 1~~ 3• i ~ I. i I ~ 2 ~ I I I 1 I - L- I- I ~ ~ I- ~ I 436 ~ ~_L,-I I ~-1-T++~-i--~-+-'-+ I ~ F I r_I - _ _ ~ I ~ , , , , , ~ -~-I, I + - I l i a ~ ~ I I I ICI , ,!L,+, ~ 1,,r~ ~ I- I i I I I I I I I I I i ~ } 1 + Rua a i °o ~ ~ of /~7h6/~ jp, ~ l i l I I I ~ ~ ~ I C I 1 LI ~ ~ ~ ~ I I a 434 ;--r-r-r ;~-r T -r- ~ ~ ~1~ ~ ~1rt. ~ _ ~ I I %i XI ~ ~ ~ ~ f " i i i r ~~~I ~rt I ~ II -i .I T~,_ ~ I,r~l I -I- "~h ` Mi • i~ ~ i / ~ t-~ ~ { ~ ' II ~ I ~I~I~ ~ ~ ~ ~,I ~~I II II II I i~li ~ I i I 432 ~ I t( ~ ~ ~ I ~ ~ I ~ I ~ .I ~ ~ I ~ T ,,Ir _ II I IIII ~I I ~ , CONTOUR FURR01fS ~ ~ ~ d5o = s° TEMPORARY I-+++--r~ t~+-I-~-~ I I ~ I ~ fi i I I I i ~ I~ ,_l~l- I~ ~ 1_ II~ - 430 ~ ~ ~ a ~ _I ~ ~ ~ I I I ~ I , ~ ,i_ii .~._i. i. rt~ l 1 1 1 I Ii I l i l i ~ I ~ ~ I I ~ I ~ I ~ _ 1I r~i i,i t I I I ITi I i~ r} I-+__ I I i i l 1 I i I I i I i i ~t-t - - "1-t-t~-t-1~ ~t~-t-t-f-~'-~rt 1 r - SURFACE rip_rap I - ; SEDIMENT n ROUGHENING ' eQLSrECrIVE vlErr ~ TRAP I '-t 428 I I I I I ~ IIII rtllli II ~ I I ~ I I I I - , _ , l _ J , ~+-r t--rfi--r- --r t+ ~-t J-J----,, r ~r1 -r ~ -r~ t I ~ t' I r-+-I-H L+~-~~ jt fi I C j~ i i- r I ' I _~_i_ ~ I I I I I i i i ~ ~ t i 11.f ~~-~~~_~~_I i~ 426 ~ ~ I ~ ~ , ~ ~ ~ I ~ ~ I E ~ I ~ I . 1-fl I -i i y I I i I L I i l l I I I I }-i ~ I I I I I I I~ I _ ~ ~ ,II I i _ ~i ~ I I ~ I~~ ~ ~ z- I ~ ~ ~ I I I-I-+-~-I F'-~ ~ ~ ~ iHrt ~~I I T ~ i ~ ~ ~ ~ ; i , I i , ~ I I~1~1 424 ~ t I ~ r~ I I I I. ~ I I,, I I I II I i I I I, + rH I I I ~-1-~~~-t ~ ~ ~--t-IfiPt1-i1 I I~ fi l II ~ ~ t I- -I I I I _i - -I I _ I I I I ~ I I ~ I I I I i ~ i ~ ~ I ~I (I I I~ ~ I ~ ~ I I I - i I I I I y l i I I I I I ~ i I t i i ~ ~ I i ~ ~ ~ N CONSTRUCTION SPECIFICATIONS CONSTRUCTION SPECIFICATIONS R r I t ~~t I ! ' ,rte ~ ~ ~ ~ 1 ~ ~ I Y I ~ - 1 ~ t_ 1 ~ ~ ~ ~ I ~1 III i I + ~ ~r 3 ' ~ - i -r+~ ~ ~-1 -i-+! ~ ~ , - I I-~ i I ~ 422. I fi I I , ~ ~ I~ ~ I I l i I~ t1-1 f l 1-t~ t ~ I I r (1 f t 1 { t t-I ~ ~ I t r FILL SLOPES 1. Clear, grub, and strip area of all vegetation and root material. Remove all objectionable material. T~ , I L I F ~ I + . ~ ~ . I I I~ , I ~ a ' fi r~ ~ , ~-r;- E I I ; J I I D~TU~1~ ~LC[~ I_~ ~ I ~ ~ ~ ~ , ~L ~ ~ i ~ I{ I I I I I I I„ 1~ ~ i 1 I i i I 1 i I I I I I I r I I I I ~ I t I ~_i_t_i _~_LS__~l i~ i(-i- I I_Lfi i i i i- ~ 1 J, I-_I i i _i_ I. I_I_~ i i t_~_i ~ 1 1. Place fill slopes in lifts not to exceed 6 inches and 2. Ensure fill materiel ie frar Of nhjer±innable material. L d20. G~ ~ ~ ; j ~ ~ i I I i it make sure each lift is properly compacted. Place fill in 6" lifts and machine compact. r 2. Ensure that the face of the slope consists of loose, 3. Protect connection between riprap and soil by using ~ 1=. I rn11 ~ of of o. I .I 'i ' uncompacted fill 4 to 6 inches deep. filter fabric. Extend fabric across spillway foundation and fa 3. Groove using any appropriate implement that can sides to top of dam. ~ M NI N, 0~ ~D'. t~ cfl, BFI d' III d' d'i ~ r be safely operated on the slope. Do not make grooves 4. Clear pond area below dam for sediment cleanout. i less than 3 inches deep or more than 15 inches apart. 5. All cut and fill slopes should be 2:1 or flatter. 4. Do not blade or scrape the final slope face. 6. Ensure stone section has min. bottom width of 3' with I I ~ ~ - I - - ~ max side slopes of z: 1. 0+00 1+00 2+00 3+00 CUT SLOPES AND UNGRADED AREAS THAT HAVE BEEN 7, Ensure weir is level and constructed to grade. CLEARED AND GRUBBED S. Material used in stone section should be well-graded re of st 1. Roughen cut areas to shallow grooves by normal mixtu one with d50 size of 9 and max size of 14 . tilling, disking, harrowing, or use of a cultipacker- 9. Ensure spillway extends post tae of embankment until a seeder. Make the final pass of any such tillage stable conditions are reached. Keep edges of stone outlet implement on the contour. flush with surrounding ground and shape center to confine F..~ VERTICAL GALE- 1' - 1~ HORIIANTAL SCALE 1' - ~ 2. "lake grooves formed by such imY!pme;,±~ c!ase outlet stream. together 10 inches) and not less than 1 inch deep. 10. Direct emergency bypass to natural, stable areas. 3. Excessive roughness is undesirable. 11. Stabilize embankment and all disturbed areas immed- Immediately seed and mulch roughened areas to obtain lately after construction, including embankment, emergency optimum seed germination and growth. Periodically check spillway, above the sediment pool and downstream. the seeded slopes for rills and washes. Fill these 12. Mark cleanout level in field. areas slightly above the original grade, reseed and mulch as soon as possible. 3.3' 2"~ TRASH SCREEN 3" ANGLE IRON , 3.3 3:1 SLOPE OR FL11T1ER MAINTENANCE PLAN 3' MIN OOMPACTED S~ 1. All erosion and sediment control practices will SUPPORT BRACKETS FOR VALVE CRANK 3.3' ALL 36' be checked for stability and operation following MNi every runoff-producing rainfall but in no case less ~ than once ever week. An needed repairs will be r~ i, Y Y 30" RISER ANTI- ~u~ - made immediately to maintain all practices as r - ` i~yitil~~ , i~'' designed. VORTEX 13' sir 2. Sediment will be removed behind the sediment 9' MIN BAFFLES , 3 TYP. fence when it becomes about 0.5' deep at the fence. The sediment fence will be repaired as 8' TE necessary to maintain a barrier. MPORARY BERM DETAIL 3. Ensure tem orar sediment trap is cleared once TOP VIEW P Y sediment reaches cleanout mark. - 4. Aii seeded areas will be fertilized, reseeded as necessary according to specifications in the veg- etative plan to maintain a vigorous, dense, vegetative cover. NOTE: ANGLE IRON STRUCTURE TO BE 1' MIN ~ a a a CAST APPROXIMATELY 1' MIN INTO a THE RISER ANCHOR BLOCK. TEMPORARY SEEDING ~ n e a FRONT VIEW TOP VIEW WITH RISER AND SUMMER (flay 15 -Aug 15) ANTI-VORTEX BAFFLES CONCRETE BLOCK German millet 40 lb/ac FRONT VIEW FALL (Aug 15 -Dec 15) Rye (grainy 120 lblac WINTFR/EARLY SPRING (Feb 1 -May 15) Rye (grain) 120 lblac Korean lespedeza 50 lb/ac NTS NTS Lime 2000 lblac 10-10 10 750 lb/ac straw 2D00 lblac PERMANENT SEEDING 3' GRASS-LINED CHANNELS FILTER DIAPHRAGM-Use a fine W1 Ta11 fescue 175-200 lbiac p Kentucky bluegrass 20 lblac sand and gravel aggregate Zx for Titer materials. Rye d0 lbiac pipe ~ E 6" Lime 4000 lblac ij'~I_ 10-10-10 fertilizer 1200 lblac I r=l ~ straw 4000 16 f ac - = ALL OTHER SURFACES 1' Tall fescue 130 lb/ac Kobe lespedeza 1D lbtac Rye 40 lb/ac H2 Lime 4000 lblac 2x H1 i1 10-10 10 fertilizer 1000 lbiac straw 2000 16lac pipe ~ t"'1 12" 2" 12" r,r, W2 6" NTS FRONT ~(QTES: 1. ALL CONCRETE SHALL BE 4000 PSI MINIMI 00 PSI MINIMUM. GENERAL NOTES: 2. REINFORCEMENT STEEL SHALL MEET ASTM• _ MEET ASTM-A615 GRADE 60 WITii 2" 1. ONLY DISTURB CLEAR OR GRADE AREAS NECESSARY FOR CONSTRUCTION. MINIMUM CLEARANCE. FLAG OR OTHERWISE DELINEATE AREAS NOT TO BE DISTURBED. EXCLUDE VEHICLES AND CONSTRUCTION EQUIPMENT FROM THESE AREAS TO PRESERVE NATURAL VEGETATION. INSIDE PIPE nrwr ~ n~ „M 2. CLEAR AND GRUB AREAS TO BE FILLED TO REMOVE TREES, VEGETATION, ..M u(n r r~ r rn ~ r MUCK, ROOTS, OR OTHER OBJECTIONABLE MATERIAL THAT WOULD AFFECT ~ DIAMETER RCOir. Loa wl nc wl nc ni nc u r- THE PLANTED STABILITY OF THE FILL. 60 12", 15", 18" NO. 4 2060 44" 64" 3. PLACE FILL IN LAYERS NOT TO EXCEED 6" IN THICKNESS AND COMPACT THE 44" 64" 23" 42 1/2-18 1/2- 27" LAYERS AS REQUIRED TO TO REDUCE EROSION, SLIPPAGE, SETTLEMENT, OR „ " » " " OTHER RELATED PROBLEMS. 21% 24" NO. 4 3100 50" 85" 50 85" 31 56 24 33* 4. KEEP DIVERSIONS AND CHANNELS AND OTHER WATER CONVEYANCE MEASURES USE #6 REBAR 27" 30" 36" NO. 4 5940 " „ " FREE OF SEDIMENT AT ALL TIMES, Odom 64 108 41 72 36 49 5. ROUGHEN THE SURFACE OF ALL SLOPES DURING THE CONSTRUCTION OPERATION 6"0. C. WITH 2 1.5 64 108 `LCLEARANCE 42", 48" NO. 4 8040 79" 150" „ " TO RETAIN WATER, INCREASE INFILTRATION, AND FACILITATE VEGETATION pEing6ineering, SSOCIatCS 79" 150 52 79 40" 64" ESTABLISHMENT. Inc. " " " " " 6. PERMANENTLY STABILIZE ALL GRADED AREAS IMMEDIATELY AFTER FINAL 1Q5 161 6O 9O 48 9O P.O. BOX 1787 60", 72" NO. 4, NO. 5 16000 105" 161 54 GRADING IS COMPLETED ON EACH AREA. APPLY TEMPORARY MEASURES ON ALL GRADED AREAS WHEN WORK IS TO BE INTERRUPTED OR DELAYED FOR 15 SHELBY, N.C. 28151 PRECAST CONCRETE WRETE HEADWALL WORKING DAYS OR 90 CALENDAR DAYS. 704-484-3778 USE 4000 PSI HIGH EARLY 54' DAM 06-11-01 STRENGTH CONCRETE 4" CONCRETE SPILLWAY THICK NTS DRAWIM NO 01023 SHEET 2 OF 2 __1 / o -rap~P \ ~iuui~ r 8P Y ` tt r 'iII t a„ 'i t of Germ ~ washed stone 2 ~ ~ G.~h? rrrr ew ion o s arm er 1' freebaad min i ~ - 04 s 470 , , , ~ T ; ri ' ~ I ! ~T I ~i i ~ I ~ I ~ _ i , , N~~~~r I 1 I , }_I ~~,-,--r- ~r { I ~--j~*I~ ~ I, i I I l ~ I !~i 1-1~~ i IT~j i 1 I~-~r-r ! .r-~-~ T-,-r-r-~~ i I l ® q a - _ r t e _ j {J-!-~~' I ~T i ~ ~ ~ ' ~ ~ i { ~ ~ r I ~-~-1 } 1 _ L l ~j ITT ~ I ! ~ ! ! I ! I I 468 ~ ~ ~ ~ L ~ ~ ~ ~ ~ 1 . ~ ! ~ ~ ~ f ~ I I ! i ~L I L , ~ - ~ ~ _ ~ , ' ` ~ ~ ' _ ~a - i ! ~ I ' i I I ! i ~ I ! i, ! I ! ~ i~ ! I i I _i__i i i____'..I ! i ~ i ~ ! i ~ i i ~ ~ I i-. _!_{.I ~ } -I-~ ~~--1... i I + '+-~-L-L~ ~ a ~ !~i ~ IIi!>I~I ( I _II i~~II~I~t ,T 7 ~ I ~ II ! , 466 {~l I ~ I ! I I f ~ I I i ? , ; ~ I I , I ~ ~ ~ ; ~ ~ ! ! ; ~ ; ! ! f ! I ~ , i . I , I I ! ! ! ! ~ ~ ~ I ~ ~ ! !~--L-~ rl- t !~-~--r -_t + !-r {I~" ,~j ~l~ I I~-r--~7 ~i ! -fir I 'i~'"-r~ I iI 'I I ! rT~~rt 1 7rt~ ~ I I i ' ' ly-~.- ! --:r~1~- 'y I I ~ , : - , ! ~ I :--~-~-r~-~ ~ ~-r-~-`-~ 464 , '~'1' ~-III IT I ! i I !I I I i~~{i I I m i I i d~ = 9" - ~ ° m ~ ~-raP ~ d~ j E~. '~1.1-l.' i '1 ~ ill I I ~ I' I i i I i E-+: -}-~-~Y r,-I+r--r ~ ~ ~ ~ ~ ~ ~ r iii i i ! i ! I ! ! 1i I!~ 1 462 ~ ~ I I ! I I _ ~ ! i ~ i -1-, ~ ~ ~ I ~ ~ I ! i ! I - - ~-+-~-r~ -~-r ! ~ maximum kvd of 'msaaaG' r~nx xr ur anent c I key m batten kybr ' `Q jT 0 i ed d eCted ~ ~ ® of ri -ra r ~ ilia down THE SLOPE PIIOrgES li D P Y ~ ~ ! i~~ i i t i I_ ! ~ I i i i i~l i I t i I _ I l_ -~~-~-I~- I~-(~-~} I I I! V I I I _ I _ ! r-t r-r-!~-,~~ ~ r~-r-~-~-~~!-~+~-~-rfir F r+~-r ~ I I I I I f I, 1 i~`-r-r-~+-~ fi I fit- ~ -F-11 460 - i, r ~ ~ ~ I~ ~ t I ~ ~ r ~ r: ~ i I~ 1-~~ ~ 11,! I I! r-t t!: I i I - _ ~ ~ , ._._~_~l a ~ , . , , , _ i ~ a j caoo~s not wxl cnta~ sem, ~ n~ when this ~ ~ rr, I~ ~ atrcw- an aEOL~ auHarF. j ~ lever is reached t ~ ~ i i i t i ~ ~ ~ n'~/ j I i SRGTION THROUGH BASIN AND FII,TER v I I ! ~ t ' I I ! I i.' I+ , 1 i G_I ~ i i i~ i ~_(_F_ ~ ! I III I I;- i i-~-, i ~ , C j i ~ 'T~' ! I ~ I I~ I- I I I I t I I ~ 458 ~ i ~~~1 I I ! ~ I I I I I I ! _ i ! I~ 1 I I!! ~ I~ i i i i I I F-~ -.-rT'-r-' ~-;~~+-r -F ~ I~ ~ ~ ~ i i i ~ ~ I I i t t I I I~ I I I i ~ r ~ ~ I I I ~ I i i ~ ~ i I carry r~-rapp up { -t-` ~ ~ ~ ~ ~ I r l I ! I i t ~ ~ I 456 I~ ~ ~ ~ , t, o. ! ~ 1~~ I ~ ! ! -nl i } { ! ! , ~ I~ I I ~ I ! ! -I ! ! ~ ! ! ! ! is ~ ~ ~ I ~ TRACIQNG i I sides of spllway i d50 = 9' 454~~ ~ - ~ ~ I`I I II I ! 1{i! -I ~I II If i I IIIII'I'III~~iII 1 I l i ~ I I I I ~ i I ~ h17 IIII i I' I I I C I I I I I I I I I' I _ _ ~ i~ ~ ~ rip-rap I i , '_(_-1_I I i _a t ~ ' ~ ~ I I ~-r I I ~ ~ ! -I_! ~ ~ ~ ~ I ! l..l- ! i I !i ~-~--L-~-~-~! 452 C -T~j j ! t i i i i : i! i I i 1"~ i i i A 'B I. 1 1 1 1 1 1 II ~J~I ~ I ~ I ~ i ! I 1' ! I - I i I~ _i I i I {_I ~ I I f ~ I 1' freeboard mi ' ~-~-ri~-j_-...~ ~ , , . t-~~~ -t±-~~ I -r ! 1 I~ - - ii t i . j ' T ~ ! ~ t-~~I ~ ~ .-~t-t--. ~ ~ ~ ! ~ 1+-;~~~{--1--~ { ~ } -r r+-~~ t ~ + ! ~ ~ ! I ~ ~ ~ ~ ~ ~ ~ 1-1~~ ~ ~ _ 450 r-F-± } a--~ ~Ft-~ ~ I , t ~ ~t 1 ~V I ~I l 3' MIN. 1_`_ I i15 washed stone-~ I I, ~i i i i - ~ ~ I` i 1 I ~ I i i i t + I I n I I ! III I I I ! I ~ I I i I I I I ~ I I I I I 448 ~ ~--r,-) _ ~ I ' i i ! I -~I~iT i i t-~F~~ ' ~ ' , I ~ { I I~~ ~L ~ ! . ~ t I ! ~ ; 1 ~ :1 L E - ~ ~ tr~~r~ J~ I r _ I 1 ~ ! ~ I I ~ i! f ~ 1 ~r- I I i .i. 1~ 446 I I ~ 1 I ~ ~ 1 --r- r fi I 30 ~ 6. , dam width - ~ ~ SECTION THROUGH BERM AND FILTER rT i a ~ r~l~l i ~ ~ I 444: I~r !i!~I-~~~IiI~' ii !li{Ei;I~Ii 4 fit II!!.n rr III'_II i I I i, i ,+~~I ~ j ~ _ ~ L_{_f} t ~ii IIl_.;_!_!1 I _i I, ~ I-r I T i_ ~ 1 _ ~-r ~ l l l; I - + I I ! , III „`~rt!I , Ijlll'i j IIII II ~I ~ I i- -I I - ~ 442 ~ t I +~-I~ I t ~ 1 ~ ~ ~ I , { ~ I ! I ~ r ~-r ~ L ~ -r-{ - , - T' ' ! i I ! I r ~ , ~ , ~ 1-1 I (t~ t 1 rt I r t ~ t ~ ~ r ~ -~r-~;-,-r ~-~-~-1--~ ~ I ~ II I , i t 'r 440 I-~~-~- ~-~-r~ . , ~ ~ ~ ~ ' i ! I T i ' ; i~ -t! - 11 I i t ! I ! I I ~ I ! _ i ! ! _ ! ! ! ! _ ! t . _ I ! t I ~ e 1 ~ I rt III fi - I I ! III 8 ! 43 I i I i { ~ { ! GROaJES MRL areH I j d~~ ~ 1 j s®, . wwcH. I~ ~nl RAMFlLL NO DECREASE ~ / A! 2 s ~ !u . ~ f 436 s - - - ~ i-~ ~ ~ : ~ ~ RUNDFF. I~ 1 ~nh~ lo, ~ , ~ !ill I!~t r~Ct" 434 r1 ~C ~ I 1 C : I Y- I f 1 f C1-1~j 1 1 ~ ~X I i- ; ~ I ~ / I ~ ~ ~ ~ 11 I ' ' - ~ r-r ~ ~ ~ ~ 32 7-I ~ I I I _ 4 ~ ' Y~r -I ~ ~ ' ~ ;-r r-~ ' ! ' I-r'r ~ ~ ~ ~ C 1~ ~ ~ ~ I r*~l ~r T CONTOUR FURROIIS d5a = 9' TEMPORARY i ~ ~ , ;--ter ~ f k--~-rTrt-, a-F + ~ +-~~-1-,~-rT j ' ~ ~ ?~'T ! ~ f ~-1 + I I r~-± ~ -f-N-~-7-F+- ; , r ~ I ~ ~ ' ~ r { t~ ~ ~ I 430 - i--~-!-4-+~-~-~-! I ~-,~r~ ! ~ ! ~ ~'t'-_! -t~ ! ! r ~ ~ i -1 ~ ! ! ! ! i i f -fah II SURFACE SEDIMENT ROUGHENING ~ ~ ~ i ~ ~ I~ ~ ! I - t 1 c*-' I r-f rr t--~rt . i~ Irt" ~ I~ ~ i t I I I ! ! ~ I ~ I I i I l i I! 428 _ !h---~- ~ r rte' I T } - PERSPECTIVE VIEIf TRAP ! ' ~ 426 IF-+~ ~ r-- y-~,----`rt + ~ ! I ~ v i , t ~ _!-_~_i. i~~.J r ~ ~ ~,I , , CONSTRUCTION SPECIFICATIONS CONSTRUCTION SPECIFICATIONS 424 ~-rr ~ ~I {~1-1-,' I ~ ~ ~ ~ fi ~ ~ , I ~ ~ I , , i~_ ~ _ i-t- ~ , ~ t Wit, r j.i.}.~ r I, ' -i fi-~- - - t rte-(-I ?-1-1- ~ ~ ~ t ± ~ -{-I"~t ~ ~ I ~ ~~~t~.~ ~ i ( I ~-I~~-j-?-±-1--r~~t-; ~ ~T I i i _ i I_ ! i ! ~ + i-+ ~ ~ ~ ~-r-t + t ~ 'F i FILL SLOPES 1. Clear, grub, and strip area of all vegetation and root ~ material. Remove all objectionable material. 422 Crhf ~'LEf " ~ t ~ ~-~-r I~- ~ ~ i- ~ ~ ~ - - ~ I ~ r r ~ ! ! 1 1 T_ ~ ~ 1~ I Li I_~ I I I I_ LI i LI_~ Ll I I LPL ~ I+_I DAT ,r }-~-I rte` I I i i! _L 1~ L I I LL I' 1 i I i I J~ -r r.1 1 1111 I{-~ i, } _1~ ~ I I I 1_ ~ ~ I I L 1~ I I l L1~_. 1 1 1~ -r . IJ 1 ~ , L~ i I LJ_l ~ L ~t ~ I-I 1. Place 611 slopes in lifts not to exceed 6 inches and 2. Ensure fill materia! is free of objectionable material. make sure each lift is properly compacted. Place fill in 6" lifts and machine compact. g ~ X20. Gtr ~ I I i I 2. Ensure that the face of the slope consists of loose, 3. Protect connection between riprap and soil by using I o _ olo rn'I ~ ~I~ I uncompacted fill 4 to 6 inches deep. filter fabric. Extend fabric across spillway foundation and r, 3. Groove using any appropriate implement that can sides to top of dam. ~ r~ I ~I, ~ N NI III ~I t\~ ~I 'i i dl r0 Mi be safely operated on the slope. Do not make grooves 4. Clear pond area below dam for sediment cleanout. ~ ll less than 3 inches deep or more than 15 inches sport. 5. All cut and 611 slopes should be 2:1 or flatter. 4. Do not blade or scrape the final slope face. 6. Ensure stone section has min. bottom width of 3' with I i i I _ - - _ I I - ~i _ _ - 0+00 1+00 2+00 3+00 CUT SLOPES AND UNGRADED AREAS THAT HAVE BEEN max side slopes of 2: 1. 7. Ensure weer is level and constructed to grade. CLEARED AND GRUBBED 8. Material used in stone section should be well-graded - 1 1. Roughen cut areas to shallow grooves by normal mixture of stone with d50 size of 9" and max size of 14°. F"~1 tillin , diskin , harrowin , or use of a culti acker- 9. Ensure spillway extends post toe of embankment until a g g g p stable conditions are reached. Keep edges of stone outlet seeder. Make the final pass of any such tillage implement on the contour. flush with surrounding ground and shape center to confine H ~ll~!'fLr ~7M!"!Ld'i 2. Make grooves formed by such implements close outlet stream. together 10 inches) and not less than 1 inch deep. 1D. Direct emergency bypass to natural, stable areas. 3. Excessive roughness is undesirable. 11. Stabilize embankment and all disturbed areas immed- Immediately seed and mulch roughened areas to obtain iotely after construction, including embankment, emergency optimum seed germination and growth. Periodically check spillway, above the sediment pool and downstream. the seeded slopes for rills and washes. Fill these 12. Mark cleanout level in field. areas slightly above the original grade, reseed and mulch as soon as possible. 3.3' 2"~ TRASH SCREEN 3" ANGLE IRON 3 3' 3:1 SLOPE OR FLATTER MAINTENANCE PLAN 3' MIN COMPACTED 901E 1. All erosion and sediment control practices will SUPPORT BRACKETS FOR FILL 36" be checked for stability and operation following MIN ~ every runoff-producing rainfall but in no case less VALVE CRANK 3.3' _ ~ than once every week. Any needed repairs will be 30" RISER ANTI- I~III~i acir~i'~~~ i~r r=il~iil a iii made Immedlateiy tG maintain 01! praCtICBS aS i ~i i- o iii ~n i ~ i~ i~io ~ L~ I_, design VORTEX 13' 2. Sediment will be removed behind the sediment 9' MIN -~I fence when it becomes about 0.5~ deep at the BAFFLES 3' TYP. fence. The sediment fence will be repaired as necessary to maintain a barrier. TEMPORARY BERM DETAIL 3. Ensure temporary sediment trap is cleared once 8' TOP VIEW sediment reaches cleanout mark. 4. All seeded areas will be fertilized, reseeded as necessary according to specifications in the veg- etative plan to maintain a vigorous, dense, vegeMtive cover. NOTE: ANGLE IRON STRUCTURE TO BE e ° e CAST APPROXIMATELY 1' MIN INTO 1 MIN a , TEMPORARY SEEDING ° THE RISER ANCHOR BLOCK. e ~ e FRONT VIEW TOP VIEW WITH RISER AND S1161MER (May 15 -Aug 15) !ANTI-VORTEX BAFFLES NCR T O K CO E E BL C GNrman millet 40 lb/ac FRONT VIEW FAiI {Aug 15 -Dec 15) 'CS"~ Rye (grain) 120 lblac NTER EARLY SPRING Feb 1 - Ma 15 _a W( I ( Y ) Rya jgrain) 120 lblae Korean lespedeza 50 lblac NTS NTS L~n,e 2000 lblac 10 10-10 750 lb/ac straw 2000 lblac PERMANENT SEEDING 3' GRASS-LINED CHANNELS FILTER DIAPHRAGM-Use a fine W1 Tall fescue 175-200 lb/ac ~ Kentucky bluegrass 20 lb/ac sand and gravel aggregate Rye 40 lblac 2x for fiter materials. 6° Linie 4000 lblac 10 10-10 fertilizer 1200 lb(ac Pipe ~ E aL1=111 ~ ~ - sh~aw 4000 lblac ~II 71~ ALL OTHER SURFACES 1' 1- Tall fescue 130 lb/ac Keba lespedeza 10 lb/ac Ry,~ 40 lbfac Lime 4000 lblae H2 2x H1 H1 10 10-10 fertilizer 1000 lb/ac st rztw 2000 lbl ac Pipe ~ 12" 12'~ 12'~ 6„ W2 NTS FRONT ~1pE NOTES: 1. ALL CONCRETE SHALL BE 4000 PSI MIN 4000 PSI MINIMUM. GENERAL NOTES: 2. REINFORCEMENT STEEL SHALL MEET AS' ALL MEET ASTM-A615 GRADE 60 Y~TH 2" 1. ONLY DISTURB CLEAR OR GRADE AREAS NECESSARY FOR CONSTRUCTION. MINIMUM CLEARANCE. FLAG OR OTHERWISE DELINEATE ARI AS NOT TO BE DISTURBED. EXCLUDE VEHICLES AND CONSTRUCTION EQUIPMENT FROM THESE AREAS TO PRESERVE NATURAL VEGETATION. 2. CLEAR AND GRUB AREAS TO 8E FIILED TO REMOVE TREES, VEGETATION, INSIfIF PIPF ~1ur.K RnnT~ nR nTHFa na.iFCTInNABLE MATERIAL THAT WOULD AFFECT DIAMETER REINF. LBS. W1 W Wl W2 Hl H2 D E THE PLANTED STABILITY Of THE FII L 60' 3. PLACE FILL IN LAYERS NOT TO EX('EED 6" IN THICKNESS AND COMPACT THE LLU 12", 15", 18" NO. 4 2060 44" 64 44" 64" 23" 42 1/2"18 1/2" 27" LAYERS AS REQUIRED TO TO REDU(:E EROSION, SLIPPAGE, SETTLEMENT, OR OTHER RELATED PROBLEMS. 21% 24" NO. 4 3100 50" M 50" 85" 31" 56" 24" 33" 4. KEEP DIVERSIONS AND CHANNELS AND OTHER WATER CONVEYANCE MEASURES USE #6 REBAft 27", 30", 36" NO. 4 5940 64" 101 „ " " " " " FREE OF SEDIMENT AT ALL TIMES, Odom 64 108 41 72 36 49 5. ROUGHEN THE SURFACE OF ALL SLOPES DURING THE CONSTRUCTION OPERATION ~ 6"O. C. WITH 2" ~ 1.5 ti• " 52" 79" 40 " TO RETAIN WATER INCREASE INFILTRATION, AND FACILITATE VEGETATION WissOCIates CLEARANCE 42", 48 NO. 4 8040 79" 151 79" 150 64" ESTABLISHMENT. Engineering, Inc. 54" 60" 72" NO. 4, NO. 5 16000 105" 16- " " " " " 6. PERMANENTLY BILIZE ALL GRADED AREAS IMMEDIATELY AFTER FINAL 105 161 60 90 48 90 STABILIZE P.O. BOX 1787 GRADING IS COMPLETED ON EACH AREA. APPLY TEMPORARY MEASURES ON ALL SHELBY N.C. 28151 54' PRECAST CONCRETE GRADED AREAS WHEN WORK IS TO BE INTERRUPTED OR DELAYED FOR 15 ,ONCRETE HEADWALL WORKING DAYS OR 90 CALENDAR DAYS. 704-484-3778 USE 4000 PSI HIGH EARLY DAM 06-11-01 STRENGTH CONCRETE 4" SPILLWAY CONCRETE THICK NTS DMW>M NO. 01023 SHEET 2 OF 2 8' FRONT VIEW TRASH SCREEN VERTICAL SCALE- r - 14Y 30" RISER ANTI- 'TEX FLES TOP VIEW WITH RISER AND ANTI -VORTEX BAFFLES TRASH RACK DETAIL NTS 3' FII TFR n1APHRAr,M-Ilca n fines 3" ANGL SUPPORT BRACKETS FOR VALVE CRANK CONC.,_ ­ HOMMWAL 3.3'� FRONT VIEW USE #6 REBAR 6"O.C. WITH 2" CLEARANCE USE 4000 PSI HIGH EARLY STRENGTH CONCRETE 4" THICK fI SAND FILTER NTS 60' T 1.5' 54' CONCRETE SPILLWAY NTS �3.3'� 3.3' TOP VIEW NOTE: ANGLE IRON STRUCTURE TO BE CAST APPROXIMATELY 1' MIN INTO THE RISER ANCHOR BLOCK. SUPPORT DETAIL NTS H2 H1 i 12" W2 12" NOTES: 1. ALL CONCRETE SHALL BE 4000 PSI MINIMUM. 2. REINFORCEMENT STEEL SHALL MEET ASTM -A615 GRADE 60 WITH 2" MINIMUM CLEARANCE. INSIDE PIPE DIAMETER REINF. LBS. W1 W2 H1 H2 D 470 I : I I I I 468 I I I I I I �i I , i I I f I -l- - l , L- I i i I I --i- �--1- 44 64" �_-� II j l l i - },�-i-�-�- I I I 27" 21 ", 24" NO. 4 3100 50" 85" 466 �-� T� tI���� ����i� +-� I-41 -_ �' -" 1 --? -v 5940 1 108" 464 I , _ I I 462- : 36" 49" 42", 48" N0, 4 8040 i 150" 52" 79" 40" 64" 54", 60", 72" INO. t.- a.. 16000 460: , r,I!;_1 I i, -�+- - 1 � ! . j 1 a- - 1+ I1r458 _ ' I Ell, , I I( 90" 456�y t T r ' ��7 i a:-, -, 1 -� t 454irn 452 Wit- �, .r �I R He I tI_ : I I ��--� + f n e : I _ � 450 r L.1 +- : 1 1 ��I�I 448 I hi t I 11 MAI I -` - to �. . 446 , , + + t1 tom`+�� i a ! + I r +\-I , 444 -y r� r { ��, I ' , t�T\r7 . I irtr r r t 442 -,- f t t- . r 1 _�+ �r { I I r LE s s - _ -- - , - - - -i t :. . s s I 440 , _, t , - 438 -r;�-� : I 1 T 7 T -T-T I T�r� - I I I I I I � i � i -i - „ + ' ( I l l I„ I I I f_ i ! - 14 436 1 T 3' 2 -. - fIL TEF II I , I ! L II 'F. 434 - �t \r -r I LSI -- - fl 432 ! I 430 _I - 1 _ .- r..lr . i S I I , - , I . . . . . � �� rt r\fi+fir r rfi 1�� r r�rt t -t t i 1 t t 428 1 r rr�T +fig + 426 424 i i 4 ; ._ t i � , { _;" ' t 1 t t" �T TT - 1 I 422 I- - ! ! -4- 1 lr 1_ _ , _ - - - --f ,I DATLM A'I�6 L; I 420.00 I 0� n' of o M Mi MI d -I MI M') M �� d] 0+00 1+00 2+00 3+00 8' FRONT VIEW TRASH SCREEN VERTICAL SCALE- r - 14Y 30" RISER ANTI- 'TEX FLES TOP VIEW WITH RISER AND ANTI -VORTEX BAFFLES TRASH RACK DETAIL NTS 3' FII TFR n1APHRAr,M-Ilca n fines 3" ANGL SUPPORT BRACKETS FOR VALVE CRANK CONC.,_ ­ HOMMWAL 3.3'� FRONT VIEW USE #6 REBAR 6"O.C. WITH 2" CLEARANCE USE 4000 PSI HIGH EARLY STRENGTH CONCRETE 4" THICK fI SAND FILTER NTS 60' T 1.5' 54' CONCRETE SPILLWAY NTS �3.3'� 3.3' TOP VIEW NOTE: ANGLE IRON STRUCTURE TO BE CAST APPROXIMATELY 1' MIN INTO THE RISER ANCHOR BLOCK. SUPPORT DETAIL NTS H2 H1 i 12" W2 12" NOTES: 1. ALL CONCRETE SHALL BE 4000 PSI MINIMUM. 2. REINFORCEMENT STEEL SHALL MEET ASTM -A615 GRADE 60 WITH 2" MINIMUM CLEARANCE. INSIDE PIPE DIAMETER REINF. LBS. W1 W2 H1 H2 D E 12% 15% 18" NO. 4 2060 44" 64" 23" 42 1 /2" 18 1 /2" 27" 21 ", 24" NO. 4 3100 50" 85" 31" 56" 24" 33" 27% 30", 36" NO. 4 5940 64" 108" 41" 72" 36" 49" 42", 48" N0, 4 8040 79" 150" 52" 79" 40" 64" 54", 60", 72" INO. 4, NO. 51 16000 105" 161" 60" 90" 48" 90" PRECAST CONCRETE HEADWALL 'TRAcraNc' W,rH +A•cr«NEi,r � _ � AND DOWN THE SLOPE PROVIDES -- GROOVES 7WQ WILL CATCH SEED. RAWWL AM REDUCE RUNOFF TRACKING CONSTRUCTION SPECIFICATIONS FILL SLOPES 1. Place fill slopes in lifts not to exceed 6 inches and make sure each lift is properly compacted. 2. Ensure that the face of the slope consists of loose, uncompocted fill 4 to 6 inches deep. 3. Groove using any appropriate implement that can be safely operated on the slope. Do not make grooves less than 3 inches deep or more than 15 inches apart. 4. Do not blade or scrape the final slope face. CUT SLOPES AND UNGRADED AREAS THAT HAVE BEEN CLEARED AND GRUBBED 1. Roughen cut areas to shallow grooves by normal tilling, disking, harrowing, or use of a cultipacker- seeder. Make the final pass of any such tillage implement on the contour. 2. Make grooves formed by such implements close together (< 10 inches) and not less than 1 inch deep. 3. Excessive roughness is undesirable. Immediately seed and mulch roughened areas to obtain optimum seed germination and growth. Periodically check the seeded slopes for rills and washes. Fill these areas slightly above the original grade, reseed and mulch as soon as possible. 3:1 SLOPE OR FLATTER 13' MIN I 36" COMPACTED SOIL nu_ SLOPE MIN FLOW , -� IL--IiI IIT Ili„I, �1L� h -=-III ahll�n-J I, IIII -ul�� IT nr�u�nrnl ,- ' I ir'li lll�nll�l rlrill�il 9' MIN (_II�_i= Imo-- --�) _ TEMPORARY BERM DETAIL carry rip -res up- sides of -, Tway of berm #5 washed stone 3 2 -T 1' freeboard min =t, -\ i 2' 1 d5o = s' rip -rap moxirnum level of key in bottom layer �sed'xnent collected of rip -rap clan basin when this level is reached SECTION THROUGH BASIN AND FILTER carry rip -rap up sides of spillway rip -rap 1 freeboard mi 3' MIN. #5 washed stone i 2:1 SLOPE dam width SECTION THROUGH BERM AND FILTER s' d` p9~J 1 TEMPORARY SEDIMENT PERSPECTIVIM ` TRAP VE i CONSTRUCTION SPECIFICATIONS 1. Clear, grub, and strip area of all vegetation and root material. Remove all objectionable material. 2. Ensure fill material is free of objectionable material. Place fill in 6" lifts and machine compact. 3. Protect connection between riprap and soil by using filter fabric. Extend fabric across spillway foundation and sides to top of dam. 4. Clear pond area below dam for sediment cleanout. 5. All cut and fill slopes should be 2:1 or flatter. 6. Ensure stone section has min. bottom width of 3' with max side slopes of 2:1. 7. Ensure weir is level and constructed to grade. 8. Material used in stone section should be well -graded mixture of stone with d50 size of 9" and max size of 14". 9. Ensure spillway extends past toe of embankment until stable conditions are reached. Keep edges of stone outlet flush with surrounding ground and shape center to confine outlet stream. 10. Direct emergency bypass to natural, stable areas. 11. Stabilize embankment and all disturbed areas immed- iately after construction, including embankment, emergency spillway, above the sediment pool and downstream. 12. Mark cleanout level in field. MAINTENANCE PLAN 1. All erosion and sediment control practices will be checked for stability and operation following every runoff -producing rainfall but in no case less than once every week. Any needed repairs will be made immediately to maintain all practices as designed. 2. Sediment will be removed behind the sediment fence whan it becomes about 0.5' deep at the fence. the sediment fence will be repaired as necessary to maintain a barrier. 3. Ensure temporary sediment trap is cleared once sediment reaches cleanout mark. 4. All seeded areas will be fertilized, reseeded as necessary according to specifications in the veg- etative plan to maintain a vigorous, dense, vegetative cover. TEMPORARY SEEDING SUMMIH (May 15 -Aug 15) German millet 40 lb/ac FALL (Aug 15 - Dec 15) Rye (grain) 120 lb/ac WINTIR/EARLY SPRING (Feb 1 - May 15) Rye (grain) 120 lb/ac Korean lespedeza 50 lb/ac Lime 2000 lblac 10-10 10 750 lb/ac straw 2000 lb/ac PERMANENT SEEDING GRASS -LINED CHANNELS Tall rescue 175-200 lb/ac Kentucky bluegrass 20 lb/ac Rye 40 lb/ac Lime 4000 lb/ac 10-10 10 fertilizer 1200 lb/ac straw 4000 lb/ac ALL OTHER SURFACES Tall rescue 130 lb/ac Kobe lespedeza 10 lb/ac Rye 40 lb/ac Lime 4000 lb/ac 10-10 10 fertilizer 1000 lb/ac straw 2000 lb/ac GENERAL NOTES: 1. ONLY DISTURB CLEAR OR GRADE AREAS NECESSARY FOR CONSTRUCTION. FLAG OR OTHERWISE DELINEATE AREAS NOT TO BE DISTURBED. EXCLUDE VEHICLES AND CONSTRUCTION EQUIPMENT FROM THESE AREAS TO PRESERVE NATURAL VEGETATION. 2. CLEAR AND GRUB AREAS TO BE FILLED TO REMOVE TREES, VEGETATION, MUCK, ROOTS, OR OTHER OBJECTIONABLE MATERIAL THAT WOULD AFFECT THE PLANTED STABILITY OF THE FILL. 3. PLACE FILL IN LAYERS NOT TO EXCEED 6" IN THICKNESS AND COMPACT THE LAYERS AS REQUIRED TO TO REDUCE EROSION, SLIPPAGE, SETTLEMENT, OR OTHER RELATED PROBLEMS. 4, KEEP DIVERSIONS AND CHANNELS AND OTHER WATER CONVEYANCE MEASURES FREE OF SEDIMENT AT ALL TIMES. 5. ROUGHEN THE SURFACE OF ALL SLOPES DURING THE CONSTRUCTION OPERATION TO RETAIN WATER, INCREASE INFILTRATION, AND FACILITATE VEGETATION ESTABLISHMENT. 6. PERMANENTLY STABILIZE ALL GRADED AREAS IMMEDIATELY AFTER FINAL GRADING IS COMPLETED ON EACH ARE A. APPLY TEMPORARY MEASURES ON ALL GRADED AREAS WHEN WORK IS TO BE INTERRUPTED OR DELAYED FOR 15 WORKING DAYS OR 90 CALENDAR DAYS. Dl&wNc NO 01023 F--1 �o� res � E W W nIM-4 Dl&wNc NO 01023 carry rip-rap up ~ r ~ ~ i ~ ~ ~ ~ i ~ ! sides of sp0lway '~'h ~ top of berm ~ washed stone z ~ ~'A~ I a, I I eva ion o s ormwa er r 1' freeboard min ° - - p~' ES _ 0~ ' r _ r' ~ T ~d a _ ° - 9 I - ~ I ~ 2' Q t' 468 , - ~ ~ ~ ~ i l- I I -4 h- i m e ~w 3' X ~ ~ 1' - - ~ o ~ I ~ - - ~I 1~~ 1-ice, <<~.T- _~_~i~~r.ii. _i~ r I-- I i iii i~r i I~~-F~! } i i_~ iI i i_I ( 466. ~~~~~iT~ ~ - r~rii f~~ ~ ~ i~ ~ ~ i ~ + ~ lil'1 ~ ~ ~ 1 ' ~ i ~ 1' ~ - II _ - i 4 ' ~ ~ i ~ 1 d50 = 9` 464 f ~ I ~ ~ i i i ~ i ~ I ~ f I ~ i II 1 e° I ~ _r 0 ® W aP m i s ;d rNE. I 1- -I-h r, i i 46211111 i i i ~ 1 ii i i i t i 1. ~ ~ i m - maximum level of ke in bottom la ~ ii ~ ~ ~ knent coAected ofyrip-rap ~ j t~ - 'ti~,~"-~ -r 460 i ~ ~ i t ~ I I i I 1~ Ih 1 'li i ~i 1 ~ II III II a ~ saoa~s mr MML cnM*+ s®. .m = level ~Q e~a~cl~eden this ~~~I L ~ awerx~ Mo amua auxrts. ° ~ ~ r i ~ i i i i i~ ~ SBCTION THROUGH BASIN AND FILTBR v ~I i 458 ~ i i i i i _r_ i 1 - - i ~ i ~1~ iii ~ lli i ~i ~V sorry rp-r up 456 r fi t t~-~~ ~ ~ ~ t ` ~ ~ j' ~ u F_ ' It; ~ ~ i i, ; TRACBING i sides of spillway d50 = 9" r _ rip-rap _L 454 ~ - _ - i ii i i,~, i ~~~i ~ I i ~I~ liitit ~ii i it iiii viii 1 f ~iiili i ~ ~i ~~il ~ ili i i - j ~I ~ i i 452 ~ -r-~ ~ i ~ i ~ i~ ~ i i i _ i i i i ~ i i i_ _ i , ~ i~ ~ i ~ ~ ~ i~_ I i 1' freeboard m' ii i ~tEIEBII'1[L"~~:?'i`R'Q~s'',Tw ~;f 450 I-r ~ ~ ~ ~ ~ ~ ~ ~r---~~~~r-,- ~ , ~ ~ ~ ~ r~ . , _ . ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ f ~ i~ ~ ~ ~ 1 L,_ i~ i,. i i -L_ i.-- ~ I ~ t ~ t i i 7... ~ ~ ~~r ~ - II iI i ~I i Ii'II l I~ ~ii 111~~ I I I i~IC ~ ~ 3' MIN. ~ I ;f!5 washed stone I ~ ~ ~~il lillllllll ICI I~Ill~i ICI II I Ilil II f I~fi ~ i I I I I 448 ~ i ~ t ~ ~ ~ ~ , ~ ~ ~ - I I~ l - 1 r I 1 __A_ 446 1, 1'-`~tI I'~I ~ ~ - rt ~ ~ 6. ~ J ~ , dam wdth - . ~ SECTION TOUGH BERN AND FILTER i 444 ~ ~ ~ ~ 1 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ I I i i 442 r'-; ~ , ~ _--~-~~-r 1 - t , t r ~ ` ~ ~ , ~ S ~ 6' ' 1 i a-u 1 ~ i~-r ~ TI ~T 440 ; ~ 1 ,-r, ii_ i ! I 1 v f I ewoorFS Mai. cen~n . ~ eyj~ f l 438. ~ ~ ~ ,ti ~ ~ ~ ~ ~ ~~t~ s®, ronuz~, mat ~r ~ en I awhF~u w+o of h~ ~ i , t pi t,: ~ r , r ~ ~ ~ i t I -1 436 f- t r T~-t-~- ~ (tom- rr~f7, 1 I ~ ~ +~~fh ro, ~ ~ M • i `i i~ fi~~ i~~ ~i .u, ~~~+,i ~ ~ _ > r rtt-r1 r~r-r~-t-r-rrt r ~ r , ~iY i ~ i i ~ 11 f rl r 434 ~ - - _ ~y~ ~ CONTOUR FURROIIS ~ ~ i_-F-r-,-_.-,-~ ~ i i__ _.f 432 H~ -+-m- ~ ~ ~ ~ ' ~ H d50 = 9" TEMPORARY r-r -;-,-r-rT~,-~----~-f-- ~ ~ ~ ~ ~ ~ ~ . ~ ~ ~ _ I ~ , ~ ~ 1~ ~ 430 ~ ~ ~ i~ii~ i i~t iiii i~~~ i i i i iiii~l i iil ~ i~ ,y, , SURFACE ~ ~ -ra iP P SEDIMENT ROUGHENING - ~ pBBSPB(R'IYE v>~I I TRAP „ ~ „ ~ , I' ~ ~ fiI . i ~ I t-f- 428 ' ' ' ~n~ - J 426 CONSTRUCTION SPECIFICATIONS CONSTRUCTION SPECIFICATIONS ~ f t ~ ~ '-i ' + 424 h-!~-!-r-L , ~ ~ ~ ~ I 1 ~ 422 'r; '1-~-T; ~ +-F , ~ ~ ~ _ ~ ~ ~ FILL SLOPES 1. Clear, grub, and strip area of all vegetation and root material. Remove all objectionable material. ~ DdThiY1ELEU i~'-t-f--i ~ 1 i ~i ~ i ~ i ii iii~~i~l I i I ii~ll ~i i i I I ~ I I i I I ~ I I I i ~ ~ i i 1. Place fill slopes in lifts not to exceed 6 inches and 2. Ensure fili materioi is free of abjectionoble material. make sure each lift is properly composted, Place fill in 6" lifts and machine compact. ~ I I 420.OD I I A I ~ i I 2. Ensure that the face of the slope consists of loose, 3. Protect connection between riprap and soil by using 0~ ~ M O O O ~ i uncompacted fill 4 to 6 inches deep. filter fabric. Extend fabric across spillway foundation and t? 3. Groove using any appropriate implement that can sides to top of dam. •I M pp~ ~ N N~ ~ n, co, M~ ~ M~ be safely operated on the slope. Do not make grooves 4. Clear pond area below dam for sediment cleanout. ~ ~ 1 less than 3 inches deep or more than 15 inches sport. 5. All cut and fill slopes should be 2:1 or flatter. 4. Do not blade or scrape the final slope face. 6. Ensure stone section has min. bottom width of 3' with l ~ 0+00 1t00 2+00 3+00 CUT SLOPES AND UNGRADED AREAS THAT HAVE BEEN max side slopes of 2:1. 7. Ensure weir is level and constructed to grade. CLEARED AND GRUBBED 8. Material used in stone section should be well-graded 1. Roughen cut areas to shallow grooves by normal mixkure of stone with d50 size of 9" and max size of 14". tillin diskin harrowin or use of a culti acker- 9. Ensure spillway extends past toe of embankment until g' g' g' p stable conditions are reached. Keep edges of stone outlet seeder. Make the final pass of any such tillage implement on the contour, flush with surrounding ground and shape center to confine M..~ v~~c,~, sc~- i~ _ ~ xo~zo~rr~, sc~ r = ~ 2. Make graaves formed t>y such implements class outlet stream. together 10 inches) and not less than 1 inch deep. 10. Direct emergency bypass to natural, stable areas. 3. Excessive roughness is undesirable. 11. Stabilize embankment and all disturbed areas immed- Immediately seed and mulch roughened areas to obtain lately after construction, including embankment, emergency optimum seed germination and growth. Periodically check spillway, above the sediment pool and downstream. the seeded slopes. for rills and washes. Fill these 12. Mark cleanout level in field. areas slightly above the original grade, reseed and mulch as soon as possible. 3.3' 2"~ TRASH SCREEN 3" ANGLE IRON 3 3' ~1 SLOPE OR FLAT1Qt MAINTENANCE PLAN 3' IAIN COI~ACTED 901L 1. All erosion and sediment control practices will SUPPORT BRACKETS FOR Fl 3B' be checked for stability and operation following LL MIN every runoff-producing rainfall but in no case less SLOPE FLOW VALVE CRANK 3.3' r- than once every week, Any needed repairs will be . . ~ ~ ~~r,~ made immediately to maintain o8 practices as 30" RISER ANTI- ~i~ ~-I~~ ~~al ~I~u~~lal~~~~~~~ iuiui Ti ~ i - ~'~,'~Il.,,~di~ designed. VORTEX 13' 'y" 2. Sediment will be removed behind the sediment 9' ~iIN-~ fence when it becomes about 0.5' deep at the BAFFLES 3' TYP. fence. the sediment fence will be repaired as 8' necessary to maintain a barrier. TEMPORARY BERM DETAIL 3. Ensure trmporory sediment trap is cleared once TOP VIEW sediment reaches cleanout mark. 4. All seeded areas will be fertilized, reseeded as necessary according to specifications in the veg- etative plan to maintain a vigorous, dense, vegetative cover. NOTE: ANGLE IRON STRUCTURE TO BE ° ° ° CAST APPROXIMATELY 1' MIN INTO 1 M!N ° ° e ° ° THE RISER ANCHOR BLOCK. TEMPORARY SEEDING ~r ° e e FRONT VIEW TOP VIEW WITH RISER AND SUMMIH (May 15 -Aug 15) ANTI-VORTEX BAFFLES CONCRETE BLOCK Germ.{n millet 40 lb/ac FRONT VIEW FALL (Aug 15 -Dec 15) Rye 1~71'ain) 120 lblac ViINTIR(EARLY SPRING (Feb 1 -May 15) Rye Igrain) 120 lblac Korean lespedeza 50 lbiac NTS NTS Lime 2000 lbiac 10-1a 1D 750 lblac straw 2000 lblac PERMANENT SEEDING 3' GRASS-LINED CHANNELS FILTER DIAPHRAGM-Use a fine W1 Tall fescue 175-200 lb/ac p Kentucky bluegrass 20 lb)ac sand and gravel aggregate Rye 40 1b/ac 2x for fiter materials. 6" Lime 4000 lbiac 10-10-10 fertilizer 1200 lb(ac Pipe ~ E ~ih;i-+ ' straw 4000 lbrac _ - II - ALL OTHER SURFACES 1' fescue 130 lb ac Tall / Kobe lespedeza 10 lblac Rye 40 lb(ac Lime 4000 lblac H2 2x H1 H1 10-10 10 fertilizer 1000 lb/ac straw 2000 lblac Pipe ~ 12" 2" ~2" W2 6" NTS FRONT ~1QE NOTES: 1. ALL CONCRETE SHALL BE 4000 PSI MINIM 100 PSI MINIMUM. GENERAL NOTES: 2. REINFORCEMENT STEEL SHALL MEET ASTM L MEET ASTM-A615 GRADE 60 WITH 2" 1. ONLY DISTURB CLEAR OR GRADE AREAS NECESSARY FOR CONSTRUC110N. MINIMUM CLEARANCE. FLAG OR OTHERWISE DELINEATE AREAS NOT TO BE DISTURBED. EXCLUDE VEHICLES AND CONSTRUCTION EQUIPMENT FROM THESE AREAS TO PRESERVE NATURAL VEGETATION. IN~DE PIPE prior ~ 2. CLEAR AND GRUB AREAS TO BE FILLED TO REMOVE TREES, VEGETATION, ..M urn u, un n r MUCK, ROOTS, OR OTHER OBJECTIONABLE MATERIAL THAT WOULD AFFECT d DIAMETER muimr. LDO- ni 114 ni nc ni n4 u r- THE PLANTED STABILITY OF THE FILL. ' 60 12", 150, 18" NO. 4 2060 44" 64" 3. PLACE FILL IN LAYERS NOT TO EXCEED 6" IN THICKNESS AND COMPACT THE 44" 64" 23" 42 1/2" 18 1/2" 27" LAYERS AS REQUIRED TO TO REDUCE EROSION, SLIPPAGE, SETTLEMENT, OR " " " " " " OTHER RELATED PROBLEMS. 21", 24" NO. 4 3100 50" 85" 50 85 31 56 24 33 4. KEEP DIVERSIONS AND CHANNELS AND OTHER WATER CONVEYANCE MEASURES Odo " " " " " " FREE OF SEDIMENT AT ALL TIMES. m USE #6 REBAR 2. 1 27" 30" 36" NO. 4 5940 " " 64 108 41 72 36 49 5. ROUGHEN THE SURFACE OF ALL SLOPES DURING THE CONSTRUCTION OPERATION LA Q~ 6"O.C. WITH 2 7 1.5 64 108 ti• CLEARANCE 42", 48" NO. 4 8040 79" 150" TO RETAIN WATER INCREASE INFILTRATION, AND FACILITATE VEGETATION SSOCIateS 79" 150" 52" 79" 40" 64" ESTABLISHMENT. En ineerin , Inc. 54" 60" 72" NO. 4, NO. 51160001 105" 161" 105" 161 60 90 48" 90" 6. PERMANENTLY STABILIZE ALL GRADED AREAS IMMEDIATELY AFTER FINAL P.Q. BOX 1787 GRADING IS COMPLETED ON EACH AREA. APPLY TEMPORARY MEASURES ON ALL SHELBY N.C. 28151 54' GRADED AREAS WHEN WORK IS TO BE INTERRUPTED OR DELAYED FOR 15 PRECAST CONCRETE )NCRETE HEADWALL WORKING DAYS OR 90 CALENDAR DAYS. 704-484-3778 USE 4000 PSI HIGH EARLY DATA 06-11-01 STRENGTH CONCRETE 4" CONCRETE SPILLWAY THICK NTS DRAWING NO. 01023 SHEET 2 OF 2 I, cony of -rNlwd ,~,r„itrrir~, sides sp y , ~ C , z' ~ , ° ° I t of berm /5 washed stone ~ ° m - ~f s° 1' freeboord min ion o s armwa w , ° ~A ~ ° _ - 2, ~ i i i 3 r-!-i-= ~ , ~ ! ~ , ~ , I 1 ~ 468 I-~~- ~ ~ ~ ~ , f i i ~ ~ ~ ~ ' ~ 1' ~ - I ~ ~ ~ ~ ~ i~*" f~ i ~ ~ , i ~~~i ~ ~ ~ , i i ~ ~I , - i . I I ~ i~ i i 466 ~ i i ~ i ~ ~ i i ~ i i t' - I ° I ~ dp raP~~ vA~~ - i d N. ~i~~ ~i ~ li i _II ii;'~ ~ i i FTC 464 ~ ~ - i ' ; ~ ~ ~ t _i ~ I i \ \ ° ~ maxinum level of `9 ~ ~ I _ ~ key in button hyer , I _ ® m _ i j ~m ~ \ ~ ~ i edim~t cdlected of rip rap ~ II ~ i I ~ I 'III-~----~--~-- - - - + + I i ii~;~ ~ ~ i Iili~ 11 I l i it ~ ~ I 462 ~ I~~, ~ ~ ~ ~ ~i I~ _ i~ ~ i ~ i i , ew oo~ nc siavc v~o~s > - _ ~ boain when this ' ~ :A\~A\. is reached `~~rruui r~` anoo+~s nNr Mu cox st». ; ~ ~ ~ J ~ r i i ~ i i i ~ i ~ ~ ~ ~ " ~ ~ -1-t-' ~ ~ ' 460 ~Yt~-r-art t t+ t -r ~ t" r~++-r ~ I~ t 1-t - r I ~ I l ~ ~ ~ ~ , ~ ~ ~I ~ ~i I I I I ~ h I i ~i i I i I wrwrru wo xmua auror>:. ~ ~ _ I SECTION THROUGH BASIN AND FILT1sR \'a \ ' curry rq-rapp up I I ~ ~ ~ ~ ~I I~; ~ III ~ I~ ~ i' ~ - - ll~!!- f;,'. ~ ~;a lr;,a,tl-+~~" 4581 I i I I I I--I ~ ~ ~rt; , , in-I I ~ , , , : I _ ~ • ~ ~ } k_ i i i i ~ i ! ; . ~ ~ I~~', i ~ sides of spillwoy TRACEING I i~ 'i i 46 5 d50 = 9" I_ ~ rip-rap o fi i ~ ~ ~ ~ 1 ~ i I I T: ~ I 454 f-,_~~- , a-, _ i ~ i i I I i t I ~I I 1~ freeboard m' ~~~p.'~?,:v.R,"u`u-~,F3 i I Ill~il iii i i i L I ~ ~ ~ - 452 ~ ~ --~--t i 3' MIN. /5 washed atone ~ i i ~ I i n II II I i~ i , i - i i 1~ i i i i i ~ . ~ i - 450 i~~T' I ~ ~ ~ ~ I~ T ~ ~ ; t ~I -~~1~LOPE ~ ~s- i I-----~ f I ~ i - ~ I. ! ~ i i i 4 i I . . ~ dam width ' so R e' SECTION THROUGH BERN AND F&TER i i I ~ ! 446 ~ ~ ~ ~r-r-;-rte ~ - ' „ _ , ~I ~ I ~ 444 ' fi t s f- ~ ~ ` ~ ~ i I , ~ I t~ l~rfit-'- L'I 1 j--~- _ _ i ' r ; r,l -}-~-t-~-----7------~-r- ; } } , ~ s' II ~ ~ i a ~ eyj ~ 1 li j I ~ / ~r t fi 442 , ~ i r ~ - - t ~ - ~ ~ ~ fi~~ r I ~I~~+~I~+~•1}-}I tf~i ...~I 1~r~r~, ~s ~ ~ ~ ~ ~a-I i ~f ~ ~ ~l s ~ti* ~ / tp/_~ ~ 440 ; Y-~~ i r ~ . ! N~ :ti-1 _ ~ ~ ~ ~ ~ ~ ~ ~ , i , i ~ ~ ~ ~ _ - , i i ~ i ~ i ; - _ pKM~ wa occams ~ ~ °o, 438 ~ ~ 1 ~ i 1 rt 1 ~ t- ' i ,a / Mi i °^n 1 ~ J 4 , , , 436 -~-i-~-I-~+ ' ~-r r ; ~ _ ---r r ~ - i ~ ~ i f , ~ , , corrroux >~o?s i y ~ ~ • d5o = s` I~ TEMPORAR 434 ~ ~rfi r ~r~ ~ - r't-t . _ t~r h - - _ ~ fi - +I i1 ,Y Tit _ _ - - ~ i i i rlp-rap ~ ! SEDIMENT ! SURFACE i TRAF 432 ~-1-1-~-~~-j--±-~ _ _ . 1-~--r-r~ I ~ ~ ROUGHENING o ~ ~ i I ~ - ~ _ 430 428 ~ -r~ i - ~ i ~ ' ~r~ i ~ ~ i , ~ ~ ~ ~ I ~ ~ TRUCTION SPECIFICATIONS n CONSTRUCTION SPECIFICATIONS CONS 426 ~-~-~-;-T rte,-.-~ --~-~-i-+~-1-~--,~--~- - . _ - , ~ ~ ~ ~ i i~ ~iiii~. Dili i.~ i~, H i~~~l II~T~~ II i~~ ,iii iil~i~ iii ~ ~I~ ~ L Clear, grub, and strip area of all vegetation and root [ta material. Remove all objectionable material. 424 r1-t-H-t ~t~' i „ ~ ~ ~ „ ~ , -t-t , 1 ~ FILL SLOPES exceed 6 inches and 2. Ensure fill material is free of objectionable material. ~ 1, Place fill stapes in lifts not to 422 ~ ~ ~ ~ ~ ~ - -r ,~I +..~~T--~- ' 'fir,- - _ _-1 ~ i ~ i i i - I -1 - ; i _ I ~ eke sure each lift is properly compacted. Place fill in 6" lifts and machine compact. rrt m DATLhf ELE4 I I ~fi_1 - i ~ i - - - :~1 i i' ! ~ ~ i ~ ~ III - ~ ~I_ t ~ ~ J~11J_ ' ~ - - , ~ I 420.00 I nsists of loose, 3. Proteck connection between riprap and soil by using i~ 2. Ensure that the face of the slope co 6 inches dee . filter fabric. Extend fabric across spillway foundation and uncompacted fill 4 to P sides to to of dam. ' i I ~ OO 3. Groove usin an appropriate implement that can p nowt. U g Y 01'~, ~ M N N O~II, ~O',, t0 MI r,Mj! M MCI e safe) o erated on the slope. Do not make grooves 4. Clear pond area below dam for sediment clea b yp than 3 inches de or more than 15 inches apart. 5. All cut and fill slopes should be 2:1 or flatter. h less eP MI M M M d ~I C i i ~ ~ ~ blade or scra a the final slope face. 6. Ensure stone section has min. bottom width of 3 wl 4. Do not P max side slopes of 2; 1. 'i CUT SLOPES AND UNGRADED AREAS THAT HAVE BEEN 7. Ensure weir is level and constructed to grade. i - - 2+00 3+00 8. Material used in stone section should be well-graded CLEARED AND GRUBBED mixture of stone with d50 size of 9" and max size of 14". 0+00 1+00 1. Rou hen cut areas to shallow grooves by normal nsure s illwa extends past tae of embankment until 9 9, E P Y tilling, disking, harrowing, or use of a cultipacker- stable conditions are reached. Keep edges of stone outlet seeder. Make the final pass of any such tillage flush with surrounding ground and shape center to confine implement on the contour. outlet stream. t ~~/~~AL+ aw!!Ld'i~ 1 ~ ~1/ ~1V W1~ i 2. Make grooves formed by such implements close 10. Direct emergency bypass to natural, stable areas. together 10 inches) and not Tess than 1 inch deep. 11. Stabilize embankment and all disturbed areas immed- VER1zCAL 8(',ALE Y 10~ 3. Excessive roughness is undesirable. lately after construction, including embankment, emergency Immediately seed and mulch roughened areas to obtain spillway, above the sediment pool and downstream. optimum seed germination and growth. Periodically check 12. Mark cleanout level in field. the seeded slopes for rills and washes. Fill these areas slightly above the original grade, reseed and mulch as soon as possible. 3.3' 2"~ TRASH SCREEN 3" ANGLE IRON 3.3' ~1 SLOPE OR FLATTER MAIN ItNANCE PLAN 3' MIN 1. All erosion and sediment control practices will COMPACTED SOIL be checked for stability and operation following FILL ~ ever runoff- roducing rainfall but in no case less SUPPORT BRACKETS FOR MIN FLO'N than once ever week. Any needed repairs will be Y VALVE CRANK 3'3 to maintain all roctices as ~u,~„~, „i~,,,~i I, made immediately P 11 `i1~i1 ~ - ~r~ll ~~„«1 ~ ~~~~I~~~~h ~ r~ designed. ~iru ii_ni~i_ ~_ni I _iii i. u_I!~ III i'ilih ' a,l_ 2. Sediment will be removed behind the sediment 30" RISER ANTI- VORTEX 13' 9 MIN ~ fence when it b?~ omes about 0.5' deep at the fence. The sedirrrent fence will be repaired as BAFFLES 3' TYP. necessary to mai~~tain a barrier. MPORARY BERM DETAIL 3. Ensure temporary sediment trap is cleared once t mark. uu 8' TOP VIEW sediment reacheQ cleanou 4. All seeded areas will be fertilized, reseeded as - necessary according to specifications in the veg ' \ etative pion to maintain a vigorous, dense, vegetative cover NOTL: ANGLE IRON STRUCTURE TO BE ° ° CAST APPROXIMATELY 1' MIN INTO 1 MIN ° , TEMPORARY SEEDING ° THE RISER ANCHOR BLOCK. a FRONT VIEW TOP VIEW WITH RISER AND ~ ° SUMMER (May t5 -Aug 15) German millet 40 lblac ANTI-VORTEX BAFFLES CONCRETE BLOCK FRONT VIEW FALL (Aug 16 -Dec 15) Rye (grain) 120 lblac WINTERIEARL~~ SPRING (Feb 1 -May 15) Rye (grain) 120 16/ac A Korean lesparieza 50 lb/ac NTS NTS Lime 2000 lb(ac 10-10-10 750 lb/ac straw 2000 lblac pFtIMANENT SEEDING 3' GAASS TINED CHANNELS Tall fescue 175-200 lb(ac FILTER DIAPHRAGM-Use a fine W1 Kentucky bluegrass 20 lblac sand and gravel aggregate ~ Rye 40 lblac _ Lime 4000 lb/ac 2x for fiter materials. 6 10-10-10 fertilizer 1200 lb/ac Pipe ~ E I ~ I- straw 4000 lb /ac ry;l= III. I' ALL O~IIER SURFACES I-' Tall fescue 130 lb/ac Kobe lespednla 10 lb/ac 1' Rye 40 lblac Lime 4000 lblac 10-10-10 fertilizer 1000 lb)ac H2 2x H1 straw 2000 lblac Pipe ~ I~ 12>, 12" 6" W2 NTS E~.Q>yI ~lQE NOTES: ~i MINIMUM. GENERAL NOTES: 1. ALL CONCRETE SHALL BE 4000 PSI MINIMUM. 2. REINFORCEMENT STEEL SHALL MEET ASTM-A61: 1. ONLY DISTURB CLEAR OR GRADE AREAS NEC.ISSARY FOR CONSTRUCTION. .T ASTM-A615 GRADE 60 WITH 2 FLAG OR OTHERWISE DELINEATE AREAS NOT IO BE DISTURBED. EXCLUDE MINIMUM CLEARANCE. VEHICLES AND CONSTRUGTION EQUIPMENT FRtiM THESE AREAS TO PRESERVE NATURAL VEGETATION. 2. CLEAR AND GRUB AREAS TO BE FILLED TO IttMOVE TREES, VEGETATION, _ _ MUCK, ROOTS, OR OTHER OBJECTIONABLE MA IERIAL THAT WOULD AFFECT ItuCinF PIPE DIAMETER REINF. LBS. W1 W2 H W2 Hl H2 U E THE PLANTED STABILITY OF THE FILL. iy 60' 3. PLACE FILL IN LAYERS NOT TO EXCEED 6" IN THICKNESS AND COMPACT THE 12", 15", 18" NO. 4 2060 44" 64" 23 64" 23" 42 1/2-18 1/2" 27" LAYERS AS REQUIRED TO TO REDUCE EROSION, SLIPPAGE, SETTLEMENT, OR OTHER RELATED PROBLEMS. ;WATER CONVEYANCE MEASURES 21", 24" NO. 4 3100 50" 85" 31 85» 31 56» 24 33» 4. KEEP DIVERSIONS AND CHANNELS AND OTHER y~ USE #6 REBAR ?.7 27", 30", 36" NO. 4 5940 64" 108" 41 FREE OF SEDIMENT AT ALL TIMES, Odom 108" 41 72" 36" 49" 5. ROUGHEN THE SURFACE OF ALL SLOPES DURING THE CONSTRUCTION OPERATION 6"O.C. WITH 2" 1.5 VEGETATION jaCAssqciates " » " " " TO RETAIN WATER, INCREASE INFILTRATION, AND FACILITATE CLEARANCE 42", 48" NO. 4 8040 79" 150" 52 150 52 79 40 64 ESTABLISHMENT. Engineering, Inc. 54", 60% 72" NO. 4, NO. 5 16000 105" 161" 6C » » » » 6. PERMANENTLY STABILIZE ALL GRADED AREA', IMMEDIATELY AFTER FINAL P.O. BOX 1787 161 60 90 48 90 GRADING IS COMPLETED ON EACH AREA. APPLY TEMPORARY MEASURES ON ALL IS TO BE INTERi,,UPTED OR DELAYED FOR 15 SHELBY, N.C. 28151 GRADED AREAS WHEN WORK 54' - PRECAST CONCRETE HEA WORKING DAYS OR 90 CALENDAR DAYS. 704-484-3778 BETE HEADWALL USE 4000 PSI HIGH EARLY »ATB 06-11-01 STRENGTH CONCRETE 4" CONCRETE SPILLWAY THICK NTS DRf?W1Pd(i NO. 01023 SHEET 2 OF 2 _ , sides o -rillwap \~ulu+lr~~~ I 00 sP Y 470 ~ ~T~~ - , I ~ I ~ ~ I~ ~ ~ hT ~ ~I~ ~ I ~ m a, o t of berm ~ washed stone 2 C evo Ion o s ormwa er t' freeboard min , ~ ~ES ~ - , ~T+ r : i ~ r - ~ - -r,-- ~ : 68 ~ ITI i l I% ' 'I 4 -~-I-1 } o ~ ~ - E-~ + -I-~-~-~-i-~ a - 466.. ~i~~ ~ I. ~I I: ~ 4 I ,r 1 ~ ~I~~ I 9 , I I o I ° m w 3' 1' ~ - ~ I ~ _ - - ~ ~ i : ~~~r ! ~ i ~ ~ ~ i I~~ _ I~1, ~ i i I i i ~ l i l~ 1. i i A l i I i i i ~ i -+-r+-r-r-r1-~-.._t-+- i I ~ ° I I - - r 13 i . , 462 ~~--~-i-~ ~ _ I' i I i I I ~ I ~ i i I i ~ I I j G-,- - : i ~ I~ ~ - - - ~ ~ j - - I d50 = 9" I c ~ rp-rap _ ~ _ _ I fi~ ~ ~ ~ ~ I ~ i + ~ h~- _ i i t . I . ~ r 46D ~ T i i I-1 ~ I ~~-_f I i f ~ ~ i ~ " °°m' I maximum level of N : '~1\` ° o v ~i y, bottom foyer r ~ n~ie S~.oatppMO[s~ - \ ° edinent cdlected of n1e-r ~ 1 458 I I ~ I 1 I ~~,~I I I~ I I I-... - ~ i-~-, ~ i ~ I i I~ I i i ~ i I_f ~ l~ I I ~ ~ I ~ _t ~ a CAa01R5 R16 wLL GVGI $Em, ~ `°'~m m ~ n basin w}78n tDrs p ~ U~ wurwt wrn xtaia nunaFS. ° ' level is reached ~~r i~` ~ r u n rlJ \ I n I ` ~ ; ~~-I _ I I I I I r~ ~ ~ ~ ' 456 ; ~ ~ ~ ~ ~ - -r-~ ~ I I ~ ~ i I _I ~ SECTION TBRDUGH BASIN AND FlII'ER ~ ~ I ~ : l E 454: ~ ~ ~ t t-t ~ ~ ~ ~ i II TRACSING I carcy rlp-rapp up I sides of spiNway Ilia ~I i i i i~ i~ III I II i ~ : III I I II I III I I I ~ I I I I I Ilil i;~ it': i i i : I 452 ~ I ' - ~ I ~ ~ d5a = 9" rip-rap I i 1 al!il ~~~~aa ~ fi I ';I~ ~I li n a III I ~ It ~~Ilil~l I I F~, t~~ ~ i i i i -t-1-1 i ~ ~ - \ ~ 1 1' freeboard mi 448 I I~-1 i t ~~T I ~ 11 1 I ~ t I I I i i ~ I i III I I I ~--III i I I i ~ _ 3' IAIN. ii i i ~i i , , i 1 : i i i i I i I t i i I I i 446 ~ a~ t~ t ~ I i ~ I_~-._.__ I I I I ~ i ~ -F i i I I ~ I C I I j I ~S washed scone ~ ~ 2:1 SLOPE : i i - i~ ~ ' I L~ a I I I I~ III I f -r t I-t 444 ~ ' I I~' rl~~t t i r t-r-r- ~ - ~ _ II 50 R 6• u1 ~ ' ~ I I dam width "yl ! I SECTIDN TBROUGB BERN AND FILTER _ . ~ 1 ( - ~ i n j_ii ~ - ~ I I i ~ i ! 442 7 ~.__1 - i--1 i i I I I 1 : ~ ~ ~.~i, ~ I ~ i_ ~ i~ t ~ I i ~ -+".'i i I ice: : I I ~ ~ 1~ ~ i i~ ~ ~i ' I ~ I I I --t I ~ i ~ - . ~ fi F ~ ; ' s s I 1 ~ ~I ~ ~ ~ t t I 1 ~ ~ t1 ' -}--I-. _ e t f I I I 1~ I I I I I I I I I I t I t f I I 1 1_, 1 I I~ V I ~ ~ ~ I ~ ~i 440 ~ F-_i-1 ~ 1. ; I -t-~--~~.._._.,_,_. ~ ~ _ ~ ~ ~ - i .°_l ~ ~ ' I - : - - ~ I i - _ I i : , ` # ` _ I ~ ~ i i , r 438 __i ~ Tom, ~ ~ ~ ` -~1 ,TI ; ~ ~ ~ ~ ~ i II Iii II ~ I II~ I i ~ ~ ~ -~I -r,- ~-i : aroucs eu a~x I n~ ~ ~ ~xu~iro~occ~ ~ ~ ~ i ~ ~ enr At : ~ ~ 436 ~ s ~ ~ I I a ~ + mNOrr. i ~ /eoph i ~ ~ ~i ` M • 434 i I 'i t~r""._.i. ~_t - z l i: ~ I ~ l i i l i i i i i i i i~ I I i~ I l I ~ i~ ~ I~-.. - ~ i ~ -trtt~l~l~rt I § CONTOUR FURROI?S I ~ 432 ` ' + , ,-~rl_;1-I-~ ~ _ t_~ _ . ~ ~ ' ~ ~ ~u ~ ~ . ~ ; I e~r~ ~~-r : II ~ H eso = s' TEMPORARY 430 ~ t! ; ' . ---~-~-4 ' -~-I-a-' ' _ ; ~ I ~ ~rt~~. 1 iii -I-1-r t - I SURFACE r -ra I ~ p ~ SEDIMENT ~ ROUGHENING I pERSFEL~vE v>~r j Tip 428 , ~_~I~r-rH~ ~~~-tt' 3:; ' ~ , I I_ I enl' ~ l - 426 i-~ r r~`~~ I ~ ~ ~ ~ ~ ~ ~ ; ~ ~ : ~ : ~ : ..r 424 ~ ~-t-'fiFrt-t-t ;~r------ ~ i i i i, i I ~ ~ , i i , I DTI CONSTRUCTION SPECIFCATIONS CONSTRUCTION SPECIFICATIONS ~ I; 422 ~~-r t~ ~ ~ r!-r 1 i ~ ~ ' , ~ A - : r +t-r-_ . _ 1 i I--1 ~ i ~ 1~~-'-+ ' I~ rt ~ , i ~ ~ ' 1~ ' r ' , rt ~ , r~ t~ifi f i- ; r~-j- x-1-1 : : DATUM ELBG I! i i r I i E i~ ' i i ~ ~ I ~ ~ ~ i 1-1 FILL SLOPES 1. Clear, grub, and strip area of all vegetation and root material. Remove all objectionable material. - 420.00 - Ill~t,l~~LL! ~iit~ _ 11iL 1, I~ _ 1-_i _ 11I1iIiIf f__~il11 ~ !i!'~iiiilili(11tIii1 ~I.I_~i~1~~~~iL~ I 1. Place fill slopes in lifts not to exceed 6 inches and 2. Ensure fill material is free of objectionable material. I ~ ' I I I I make sure each lift is properly compacted. Place fill in 6" lifts and machine compact. i~ 2. Ensure that the face of the slope consists of loose, 3. Protect connection between tiptop and soil by using L, ~ rn `t N1 O O O ~I, ~ r) I ~ h cqI a r~l, tV I N uncompacted fill 4 to 6 inches deep. filter fabric. Extend fabric across spillway foundation and ~ ~ ~ d~'I ~I ~I ~ 3. Groove using any appropriate implement that can sides to top of dam. be safely operated on the slope. Do not make grooves 4. Clear pond area below dam for sediment cleanout. ¢I ~ j I ii less than 3 inches deep or more than 15 inches apart. 5. All cut and fill slopes should be 2:1 or Hotter. ~ I ~ i I - 4. Do not blade or scrape the final slope face. 6. Ensure stone section has min, bottom width of 3' with o+oo ~+oo z+oo 3±00 CUT SLOPES AND UNGRADED AREAS THAT HAVE BEEN max side slopes of 2:1. 7. Ensure welt is level and constructed to grade. CLEARED AND GRUBBED 8. Material used in stone section should be wdl-graded 1. Roughen cut areas to shallow grooves by normal mixture of stone with d50 size of 9" and max size of 14". tilling, disking, harrowing, or use of a cultipacker- 9. Ensure spillway extends past toe of embankment until seeder. Make the final pass of any such tillage stable conditions are reached. Keep edges of stone outlet V~tTICAL SCALE- 1" ~ 10~ - • HO SCALE Y 20r implement on the contour. flush with surrounding ground and shape center to confine E..~ 2. Make grooves formed by such implements close outlet stream. together 10 inches) and not less than 1 inch deep. 10. Direct emergency bypass to natural, stable areas. 3. Excessive roughness is undesirable. 11. Stabilize embankment and all disturbed oreas immed- Immediately seed and mulch roughened areas to obtain iotely after construction, including embankment, emergency optimum seed germination and growth. Periodically check spillway, above the sediment pool and downstream. the seeded slopes for rills and washes. Fill these 12. Mork cleanout level in field. areas slightly above the original grade, reseed and mulch as soon as possible. 3.3' 2"~ TRASH SCREEN 3" ANGLE IRON , 3.3 3t1 SLOPE OR FLATTER MAINTENANCE PLAN s ?eN SUPPORT BRACKETS FOR COMPACTED S0~ 1. All erosion and sediment control practices will VALVE CRANK 3.3' 36~ be checked for stability and operation following FlLL MIN ever runoff-producing rainfall but in no case less SLOPE ~,OW Y . r- than once every week. Any needed repairs will be 30" RISER ANTI- VORTEX 13' «~I u~i~ ~~,J,~ mil made immediately to maintain all practices as II JI III"` IJ~I~~'\iIi - III-JII it ll~ll-~JI'- I \i~iir!_I designed. BAFFLES 9~ t~HN ~I ?I 2. Sediment will be removed behind the sediment 3' TYP. fence when it becomes about 0.5~ deep at the fence. The ~:ediment fence will be repaired as 8' TOP VIEW 1_, TEMPORARY B necessary to maintain a barrier. ERM DETAIL 3. Ensure tem orary sediment trap is cleared once R sediment reaches cleanout mark. 4. All seeded oreas will be fertilized, reseeded as necessary according to specifications in the veg- etative plan to maintain a vigorous, dense, vegetative cover. NOTE: -r--_ ANGLE IRON STRUCTURE TO BE 1' MIN 4 CAST APPROXIMATELY 1' MIN INTO 0 FRONT VIEW THE RISER ANCHOR BLOCK, TOP VI W WITH RISER AND a ANTI-VORTEX BAFFLES TEMPORARY SEEDING SUMMER (May 15 -Aug 15) CONCRETE BLOCK German mltlet 4D lb/ac FRONT VIEW FALL (Auy1 15 -Dec 15) Rye (grant) 120 lbfac A WINTERiEARLY SPRING (Feb 1 -May 15} NTS Rye (grain) 120 lb/ac NTS Korean lr+spedeza 50 lblac Lime 2000 lb/ac 10-1D-10 750 lblac straw 2000 lblac 3' FILTER DIAPHRAGM-Use a fine PERMANENT SEEDING GRASS-LINED CHANNELS sand and ravel a re ate W1 Tall fescue 175-200 lblac 9 99 9 2x for fiter materials. ~ Kentucky hluegrass 20 lb/ac Rye 40 lblac 6„ Lime 4000 lblac Pipe ~ E ~I,~ji- 1D-10-10 fertilizer 12D0 lb1aC ~~~I~' straw 4000 lblac _-1 I 1' J I ~ ~ L THER RFA E I_ AL 0 SU C S Tall fescue 130 1b1ac - Kobe lespetleza 10 lblac 2x H2 Rye 40 lblac Lime 4000 lblac pipe ~ H1 10 10-10 tertilizer 1000 lblac straw 2000 lblac 12" ~ 2~, 6„ A w2 NTS FRONT NOTES: 1. ALL CONCRETE SHALL BE 4000 PSI MINIMUM. PSI MINIMUM. GENERAL NOTES: 2. REINFORCEMENT STEEL SHALL MEET ASTM-A! EET ASTM-Afit5 GRADE 60 WITH 2" 1. ONLY DISTURB CLEAR OR GRADE AREAS NECESSARY FOR CONSTRUCTION. MINIMUM CLEARANCE. FLAG OR OTHERWISE DELINEATE AREAS NOT T4 BE DISTURBED. EXCLUDE VEHICLES AND CONSTRUCTION EQUIPMENT FROM THESE AREAS TO PRESERVE NATURAL VEGETATION. INSIDE PIPE , 2. CLEAR AND GRUB AREAS TO SE FittED TO REMOVE TREES, VEGETATION, _ eal Iru RnnTC nR nTUro na icrTlntilaal c uaTl-Rlel Tuer wnrn n >S~rmr 60' DIAMETER MUNI-. uis. wl wz THE PLANTED STABILITY OF THE FILL. 12% 15", 18" NO. 4 2060 44" 64" » 1/2- 3. PLACE FILL IN LAYERS NOT TO EXCEED 6" IN THICKNESS AND COMPACT THE 64 23 42 1/2-18 27" LAYERS AS REQUIRED TO TO REDUCE EROSION, SLIPPAGE, SETTLEMENT, OR 21 24" NO. 4 3100 50" 85" USE #6 REBAft ~ I" 85" 31 56" 24" 33" OTHER RELATED PROBLEMS. 4, KEEP DIVERSIONS AND CHANNELS AND OTHER WATER CONVEYANCE MEASURES 6'O.C. WITH 2" 1.5' ` 27", 30", 36" NO. 4 5940 " 64 108 FREE OF SEDIMENT AT ALL TIMES, " 108" 41" 72" 36" 49" 'Odom CLEARANCE " 42", 48 NO. 4 8040 79" 150" 5. ROUGHEN THE SURFACE OF ALL SLOPES DURING THE CONSTRUCTION OPERATION " " » " » TO RETAIN WATER, INCREASE INFILTRATION, AND FACILITATE VEGETATION &ASSOCIates 150 52 79 40 64 ESTABLISHMENT. " » » Engineering, Inc. 54", 60", 72" NO. 4, NO. 5 16000 105" 161 161 60 90" 48" 9O 6. PERMANENTLY STABILIZE ALL GRADED AREAS IMMEDIATELY AFTER FINAL P.O. BOX 1787 GRADING IS COMPLETED ON EACH AREA. APPLY TEMPORARY MEASURES ON ALL ' 54' GRADED AREAS WHEN WORK IS TO BE INTERRUPTED OR DELAYED FOR 15 SHELBY, N.C.28151 PRECAST CONCRETE HE USE 4000 PSI HIGH EARLY "BETE HEADWALL WORKING DAYS OR 90 CALENDAR DAYS. 704-484-3778 STRENGTH CONCRETE 4" CONCRETE SPILLWAY DATE 06-11-01 THICK NTS DROANG NO 01023 SHEET 2 OF 2 _ _ carcyrq-roppup `~~ru~irrUrr sides of illwa rr sP y ~ I+- ff ' v, m- ~ ~ _ t of berm ,$5 washed stone 2 ` ~'S1 r',, evo ion o s ormwa er c' 1' freeboard min ~ O~ 2, ~ + ,T. I , -r, ' 470 ; , I ; ~T ~Ti '~T~ i I I ~ ~ I ~ I ~_I ; - i. I ili ii + j ~ s li II 3' - ~t' ~L_~;-~-~-- - - 468 ~ 1- - ±-I-!-! ~ ; ~ I ~ . \ ° Cpl-. 1 i~lI~iilil .,.i ~ i it I ~ i I~ 466 ` ~ ~ ~ r-r-r-r-~, - r+-~ - ~ ~ - I ~ ~t I ~~f- ~ 1 - _ - i t~ aao = s" , 464 ~ ~ i i I I , i 1~ l ( Imo' I I I I j I. , ~ I i ~ ~ , o ~ F p , d 1 E ~ maximum lewd of key in bottom layer ~ d ~ f -f „ , I I 1-, , ~ i .III II i - - i I I ,i i 462 ~--a---~-`~ i ~ ~ ~ _ _r ....._---rt - r ~ ; ~ ; ~ T ~ I I I I~~ I i f i~ I l i t I i 1 I i I I I I I ~ I I hn~daxo' •nx rrxtm' ua ~ ~ ediment collected of n rap , , ~ oa•+ nE auvc rnaao[s - ? basin when this p- ` r, I D ~ ~ i i I I i i iii ~ i i li i i I ~ ~ it , - - 460 ~ -1-, ,~-I I I ~ ~ „ i ~ a- i i I I { I ceoaES 71MT N71 GaCli sue, ~ m ° lewal is reached r r r r r, r y ~ t ~ w~xi wa ~ a ~ ' ~ ® ~ SECTION THROUGH BASIN AND FILTER / U S I , I ~ f i I ~ ~ I I I 458 I i ! ~ carry ~-ra~ up n, l ~l J a_~-1--1--t k-1-~1-z_~ ~ L_ 1~ _~_l_Lli t 1-~- - ~ L _ ~ I- ~I ~ I-~ ~_l ~ - - t I , ~ ~ I ~ ~ { ~ , I TIC I'IIll~~li I illl Iill I I I ~~I ~ I i~ ii i1.1 ~ U , i i I ~ 456 -t-t7 I L • ~ ~ ~ ~ j ~ _t~ + ' ' - - ' i , ~ I TR?ClD7'IG i ~ sides of spalway V d50 = 9" _ _ I rip-rap i ~ I ~ i i ~ I t- i i ~ i i i. i i I~_.i-1. _ ii t,-. i.. _i { f a, t~ ..L, { 1-__ i i. 1. i~ i l 1 a-t l I I ~i I , 4541 I i i I-1 I I r I i I I l i i l l i i i~ LI --I- I I I I I~~~,I I~ III i i I I I (i_I I I V I I I ~ i i i I I I I I I I Ii - I I t' freeboard m' ~1vI~"II'i~'~~P~'II7Ci~T3 ~ ~ i i ~ -~-~-r ~ I I r--I i ~I 452 ' 11 ~ ICI ; e L I ~ - ~ ~ ~I~ I ~ 3' MIN. I III ' • - ~ i I ~ __-_1__r-t I I ~ - 450 ~ ~ ~ _ ~-F--+-H-f • ,i r~ - I I /5 washed stone) ~ ~ ~ i I I r li i1, I~ sl- I i - i Ifi f i~ i { .~L~ ~ I ~ ~ ~ ~ I i I I . ~ ~ .I I u {i I III _~I I III' II I lily ~ 448 I . I t 1 I I I I- ~ I ~ ~ I -~--.-1 I~ ~~-1-i Iii' ~~i~ ~7- ~ ~ - I ~ ~ i i h----'~ - ~ i dam width - - - - - - -1 ~_L. i - - - - - t - ~ I t { -1T { -i-F-I ;--r t -f t r -,-r , t-i--- -t f , + ~1 i ~ i • H-;-- ~ ~ ~ ~ ~ , ~ I-r-r- I 446 ~ ~ I I , so ~ s' ~ ~ SECTIDN TOUGH BER![ AND FILTER -I--F I 1 ~~~i ~ , , -~-I-+-E-+-I--+ ~ ~ I 444 ~ _T - T-f ~ I I - - --r ~ I ; I , I I ~ I tl ~ 11 - ~ t ~ ~ { 1 i I ' ~ ~ i 1-T ~ i ~ I I I ~ i 7 1 1-i~' I I ~ I I I ~ ~ I I! II, i ~ ~ ~ _ ~ - _ _ i 442 ~ . ~ ~ I I ~ I $1- r I I , ~ ~I I ,ti, ~ g' I , 1 , , . 8 , A - ~ I I~I~ I 440 ~ I ~ I ~ ~ I r I + I • ~ i_I ~ i ~ , , , , ; ~ ~ I i ~ ff1 e o' 1 I 1 caoaa wu a>cx „ ~ ~ it ~ r~ i ~ L ~ I i~ - ,-i~ ' i I~ ~ i 1~ ~ i r 438 III ~ ~ i t; I I scm, r[m~, wua+, ~ . i i eat ai _ awrrru Na r ear ~ T ~ (_~I_ ~r I i I , 436 - - r t _r_,_T_,___T-+ _.t_.... ~ r - ~I ~ ~ ~ t - ' ~ { / b~ d~ ~ r~' is • i i an,,~ 1 - Mr i~ ~ ~ iltlli I ILIi i 7 i i, i i i I. i i i s I , i i i I I n. - -i ~ r-~rr~i-- ~ ~ , i~l I ~ ~ coNTOUR x~ROIls I ; h-~ 434 1-rr I t fi-r t t I l ~ - ~ ~ ~t , t- t L t I tt , , I aso = s" ~ TEMPORARY I • SURFACE ~ r~-rap SEDIMENT ~ 432 ~ ~ ~ _I ~ I r , Ire,--' - ----~-~-I- i - - r~ - I ~ t-~-F-r-u ~ ~~~{{{I{.G_ ~ ~ ~ I, s ~t~ ~ -I I ~ ~ I II _r _ ROUGHENING I I TRAP ~ PERSPE(T1VE VIfil1 ~I - l 430 Imo-, ~ ~ I ~ ~ . ~ ~ I ~ ~ , ~I~ I I 1~_. ~ ~ rt - I -i t 1-y-* Imo"-f-~1 4 - - i± - , I I ~ ~ - - 428 ` -I," I . -~I-~~ t1 f- I F1-rr ~ I ~'_t~~^ I x e I - CONSTRUCTION SPECIFICATIONS CONSTRUCTION SPECIFICATIONS ~ 426 ' I i' l ~ i ~ I 1 1 { ~ ~ ~ ~ ~ 1 1 ~ I ~ '~-l ~ 1-~. I ~ i I I I I , 1. Clear, grub, and strip area of all vegetation and root ni - ' 4 .H-~~t-t , 42 t--- -rt ~ ~ I ~ FILL SLOPES material. Remove all objectionable material. ' h and 2. Ensure fill material is free of objectionable material. { i I i 422: ~ ~ ~ ~ ~ ' ~ ~ , I ~ II ~ ~ I - ~ ~ I I ~ I ~T-~-~ , I r ~ „ , I I , I ~~I - i 4, ~ I I I ~ ~ ~ I I I l-L I I , DATCW ELE I i i ii it - - - I 1. Place fill slopes in lifts not to exceed 6 inc es rl cam acted. Place fill in 6" lifts and machine compact. make sure each Irft ~s grope y p I 420.00 j ~ I ~ ~ 2. Ensure that the face of the slope consists of loose, 3. Protect connection between riprap and soil by using [y a~ I i I I o oho ~I ~ ri cv! N, uncom acted fill 4 to 6 inches deep. filter fabric. Extend fabric across spillway foundation and P 3. Groove using any appropriate implement that can sides to top of dam. rn ~I n r~ M~ M~ r11 dl ~I ~ be safely operated on the slope. Do not make grooves 4. Clear pond area below dam for sediment cleanout. less than 3 inches deep or more than 15 inches apart. 5. All cut and fill slopes should be 2:1 or flatter. fy 4. Do not blade or scrape the final slope face. 6. Ensure stone section has min. bottom width of 3' with I I li _ - , i ~ 1 _ I max side slopes of 2:1. CUT SLOPES AND UNGRADED AREAS THAT NAVE BEEN 7. Ensure weir is level and constructed to grade. _ - _ _ o+oo ~+ao 2+00 3+00 CLEARED AND GRUBBED 8. Material used in stone section should be well-graded w rooves b normal mixture of stone with d50 size of 9" and max size of 14°. 1. Roughen cut areas to shallo g y - a 'I' diskin harrowin or use of a culti acker 9. Ensure spillway extends past #oe of embankment until tll ing, g. 9~ p stable conditions are reached. Keep edges of stone outlet seeder. Make the final pass of any such tillage on the contour. flush with surrounding ground and shape center to confine H implement outlet stream. - HORIZONTAL SCALE- Y _ ~ VER1zCAi, ~.l~E p' ~ 2. Make grooves formed by such implements close 10. Direct emergency bypass to natural, stable areas. together 10 inches) and not less than 1 inch deep. slue rou hness is undesirable. 11. Stabilize embankment and all disturbed areas immed- 3. Exces g lately after construction, including embankment, emergency Immediately seed and mulch roughened areas to obtain spillway, above the sediment pool and downstream. optimum seed germination and growth. Periodically check 12. Mark cleanout level in field. the seeded slopes far rills and washes. Fill these areas slightly above the original grade, reseed and mulch as soon as possible. 3.3' 2"~b TRASH SCREEN 3" ANGLE IRON 3.3' ~1 SLOPE OR FLATTER MAINTENANCE PLAN 3' MIN COrrIPACTED S0~ 1. All erasion and sediment control practices will be chrcked for stability and operation following SUPPORT BRACKETS FOR FILL every runoff-producing rainfall but in no case less 1~W than once every week. Any needed repairs will be VALVE CRANK 3.3 r' ,Ili ~ ~ made immediately to maintain all practices as 30" RISER ANTI- nii~l,-lil~j),~u-iC,i~ i ~u ~~luli-~ihu~~lr n Ibi~li~ii i i - i i-il~i.~ i-n i i i~L deslgnf+d. ~"J =a'~ 2. Sediment will be removed behind the sediment VORTEX 13' 9 MIN when it becomes about 0.5' dee at the fence P BAFFLES ~ 3' TYP. fence. The sediment fence will be repaired as necessary to maintain a barrier. h TEMPORARY BERM DETAIL 3. Ensure temporary sediment trap is cleared once 8' . s ~ TOP VIEW sediment reaches cleanout mark. - _ 4. All seeded areas will be fertilized, reseeded as necessary according to specifications in the veg- etativF plan to maintain a vigorous, dense, vegetative cover. NOTE: ANGLE IRON STRUCTURE TO BE ° ° ° CAST APPROXIMATELY 1' MIN INTO 1 MIN a , ° TEMPORARY SEEDING ' THE RISER ANCHOR BLOCK. a ° e e FRONT VIEW TOP VIEW WITH RISER AND SUMMER (May 15 -Aug 15) Garman millet 40 lblac ANTI- VORTEX BAFFLES BETE OCK CONC BL FRONT VIEW FAIL (Aug 15 -Dec f5} Ryrr igrain) 120 lblac 4YINTERlEARLY SPRING (Feb 1 -May 15} qye (grain) 120 lblac Korean lespedeza 50 lblac NTS NTS L,,,,e 2000 lb/ac 10 10-10 750 lb/ac straw 2000 iblac PERMANENT SEEDING 3' GRASS-LINED CHANNELS Tail fescue 175-200 lblac FILTER DIAPHRAGM-Use a fine W1 Kentucky bluegrass 24 lbiac sand and gravel aggregate ~ qy,, a0 lb!ac » Lime 4000 lblac 2x for fiter materials. 6 10 iD-10 fertilizer 1200 lblac pipe ~ E ~ ~~-i l straw 4000 lblac _-~i X11=~~ `=I I ALL OTHER SURFACES jl , Tall fiescue 130 lblac 1' Kobe lespedeza 10 lblac qyr~ 40 lblac Lime 4000 lblac 10 10-10 fertilizer 1000 161ac H2 2x H1 H1 straw 2000 lb/ac Pipe ~ b 12" 12" 12" W2 - 6" NTS FRONT NOTES: 1. ALL CONCRETE SHALL BE 4000 PSI MIS 4000 PSI MINIMUM. GENERAL NOTES: 2. REINFORCEMENT STEEL SHALL MEET AS 1. ONLY DISTURB CLEAR OR GRADE AREAS NECESSARY FOR CONSTRUCTION. ALL MEET ASTM-A615 GRADE 60 WITH 2 FLAG OR OTHERWISE DELINEATE AREAS NOT TO BE DISTURBED. EXCLUDE MINIMUM CLEARANCE. VEHICLES AND CONSTRUCTION EQUIPMENT FROM THESE AREAS TO PRESERVE NATURAL VEGETATION. 2, CLEAR AND GRUB AREAS TO BE FILLED TO REMOVE TREES, VEGETATION, _ _ _ _ MUCK, ROOTS, OR OTHER OBJECTIONABLE MATERIAL THAT WOULD AFFECT IN~It]F PIPF DIAMETER REINF. LBS. W1 A W1 WZ Hl HZ U L THE PLANTED STABILITY OF THE FILL. 6Q 3. PLACE FILL IN LAYERS NOT TO EXCEED 6" IN THICKNESS AND COMPACT THE 12", 15 18" NO. 4 2060 44" 61 1 44- 64' 23- 42 1/2' 18 112' 27- LAYERS AS REQUIRED TO TO REDUCE EROSION, SLIPPAGE, SETTLEMENT, OR OTHER RELATED PROBLEMS. 21", 24" NO. 4 3100 50" 8; REBAR USE 6 I 50p 85p 31N 56N 24„ 33N 4. KEEP DIVERSIONS AND CHANNELS AND OTHER WATER CONVEYANCE MEASURES M N FREE OF SEDIMENT AT ALL TIMES. Odom fi4' 108' 41 72 36' 49 5, ROUGHEN THE SURFACE OF ALL SIOPES DURING THE CONSTRUCTION OPERATION 6"O. C. WITH TH 2" 1.5 27% 30", 36" NO. 4 5940 64" 10 ~ N - N N N TO RETAIN WATER, INCREASE INFILTRATION, AND FACILITATE VEGETATION &Associates CLEARANCE 42", 48" NO. 4 8040 79" 15 79 150 52 79 40 64 ESTABLISHMENT. Engineering, Inc. 54" 60" 72" NO. 4, NO. 5 16000 105" 16 p p p p p p 6. PERMANENTLY STABILIZE ALL GRADED AREAS IMMEDIATELY AFTER FINAL P.O. BOX 1787 Q 105 161 6O 9O 48 90 GRADING IS COMPLETED ON EACH AREA. APPLY TEMPORARY MEASURES ON ALL 54' CRETI GRADED AREAS WHEN WORK IS TO BE INTERRUPTED OR DELAYED FOR 15 SHELBY, N.C. 28151 HEADWALL WORKING DAYS OR 90 CALENDAR BAYS. 704-484-3778 CONCRETE USE 4000 PSI HIGH EARLY PRECAST CON DAME 06-11-01 STRENGTH CONCRETE 4" CONCRETE SPILLWAY THICK N TS DRAVANG NO. 01023 SHEET 2 OF 2 DEVELOPMENT PLAN LAN FOR PITTA DA ELLENB0R0, N.C. slrrE N.C. OWNER: DELBERT PITTMA x' ['MAN X60 -r- VICINITY MAP p19191 r~~,~ s.a~e~ INDEX SHEET TITLE SHEET YdQ M78 RCVffiKIPT ID~SCA4IPIYOt~I PLAN/ECP 1 DETAILS 2 ~~,'N. ~ f....,,~ 9 ~ Odom &Associates Engineering, Inc. P.O. BOX 1787 SHELBY, N.C. 28151 704-484-3778 JUNE 20, 2001 O1 RECEiVED V4P-7ER OIJAI_ITY RECTION L4?w ~ L.e Non-Discharge Harrniting ~,4 l 7 ~ Z~ o ' a o. - o' ~ ~ c °?~1` ~ 30 , 4 o~NEE~ t~,,9pJ~ ~ ~0 D 0 i - - ~ ~ ~ % ~ ` W • j', l ~ ~ LENGTH-1f0' T- i ~ 1NID H 56 V 1 • DEPTH-2' WEIR-10' w ~i ld r -7 w DELBERT D. PITTMAN and wife DONNA L. PITTMAN 764/385 ~ ' ~ - ~ ~ . ~ _ 1, H = ~ ~ 1 ~ ~ ~ ~ - t A ~ _ ~ ~ `i ~ ~ ~ ~ ~ ~ ~ i~~ ~i'-~1i ~~i ~i = TEMPORARY DIVERSION BERM C)p TSP - - 0, 'N ' 1~ D -56 ` t CLEARINGUMITS ~~~r ~ ~ 1 DEPT 2' ~ - ~ ` _ WEIR-1 ' .~~u~~~i ~ ~ ~ * ~ TEMPORARY SEDWEMT PIT ~ ~ ` ` ~ , \ - r V A ~ A a 1 ~ ` ~ M--r - ~ ~ 1 V ~ ~ ~ ` Oa - - - ~ ~i ' i i 1 i i ~ ~ ~i ~ ~ ! - i ~ - l ~ ~ ~ l ~ ~h ~ ~ ~ ' I', 1 JSP #4 30" 15ER IPE ~0 ~o. _ i I ~ LENGTH-10 ' -,,~F Thh 50' z, DEP =2.' i ' i WEIR- t,1~ _ - - - . ~ ~ ~ ~ i~' - / / / - _ / ~EXT€ND~CONCRETE~SPJ~LWAY / ` ~L 10' PAST THE-TOE OF SL1~RE / TS #1 ~ \ 5'. LENG1` 30' ~~--OE THE DAM / S / I W~DTH~ / S / 4 ~ . DFPTH~ , N .r..' / ` / IR-4' . / 1 / R / ~~I / ' / ~ / ~~A` 1 1 / - - X~, i l ~ ~ / = ii ASP #2 ` , - ~ ~ LENGTH-35' ` #2 / NTH-35; / -ii- ~ , _ WIDTH-19' , ~ , TN-i9' V~,'~-,~ - / = ' II DEPTk-2' ? ~ ~r I ~ ,WEIR-~4' 'T)d-2' / \ / .IR 4' ~~1. ; , ~ _ / ~ ~ pl i~ / = DELDERT D. P~TTMkj~! i bad wife - ~ / - / 1- ` ~~~~~OONNA ~C., PITTMAN - ~~i~r I 526 596 / ~ w ~ DELBERT D. PITTMAN / ~ and wife DONNA L. PITTMAN - ~ w 526/596 ~ m \ ' ~ TSP #3 / LENGTH-62' z _ ~ / 1MDTH 32' / DEPTN-2' rc ~ ~ / / WEIR-4' ` i ~ L I I I I I I J ~ Odom Associates &Engineering. Inc. GRAPHIC SCALE P.O. BOX 1787 / 50 0 25 50 100 200 SHELBY, N.C. 28151 704-484-3778 1 INCH = 50 FEET DATE 06-11-01 DRAVAM NO 01023 SHEET 1 OF 2