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HomeMy WebLinkAbout20100612 Ver 1_Stormwater Info_20101012150 Fayetteville Street, Suite 95o Ralei ., 27601 charlotte 919 719 1800 .919 719 1819 w d.? ieneststone.com Raleigh RECEIVED Wilmington DIVISION OF WATER QUALITY SEP 3 0 2010 SWP SECTION MOORESVILLE REGIONAL OFFIGfRANSMITTAL Shaping the Environment Reahzi??a the Pcsib"'lies Date: September 29, 2010 Reference: 50243.02 - Walgreens - Store No. 13036 D- 0 LP 1 Attention: Mr. Alan Johnson Company: North Carolina Department of Environment and (704) 235-2200 Natural Resources Division of Water Quality 610 East Center Avenue Mooresville, North Carolina 28115 We Are IRM90!"#ansmifting: OCT 12 2010 DENR- WATER QUAUTy 69MID STORUW4jjE BWWCH Land Planning Landscape Architecture Civil Engineering Urban Design ID Herewith ? Under Separate Cover Copies Dated Description 2 09/29/10 24" x 36" Documents See attached sheet list 2 07/19/10 Revised Stormwater Management Permit A lication Form 2 09/29/10 Sand Filter Supplement 2 09/29/10 Calculation Package 2 09/28/10 Comment Response Letter 2 -- Revised PCN 2 -- Revised USCOE Nationwide Permit Verification Transmitted ? Mail ® Overnight ? Courier ? Hand Delive Via: rY El Pick-Up ? For Approval ? For Your Use ? As Requested ® For Review Remarks: The attached Stormwater Permit Application Package is being submitted on behalf of Morgan Property Group. Mr. Trey Morgan will be mailing the signed Operation and Maintenance Agreement separately. Please contact us with any questions or comments. By: Ani McGla *fee ry, EI, L E E D AP bec cc: Mr. Trey Morgan - Morgan Property Group Mr. Michael S. Cole, Sr., RLA, LEED AP - CJS Mr. R. Todd Fisher, PE - CJS P:\SDSKPROJ\50243\_Correspondences\2010\Trans\0929t Johnson, A., SW Permit App Pkg.doc II? 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III To ;j t Ik 4? way •i lt?R Y IF ?v ail ?11 50243.02 - Walgreens - Store No. 13036 Sheet List September 29, 2010 CV1.0 Existing Conditions CV2.0 Staking and Materials Plan CV2.1 Staking and Materials Plan CV3.0 Stage 1 Erosion Control Plan CV3.1 Stage 2 Erosion Control Plan CV4.0 Grading and Drainage Plan CV4.1 Grading and Drainage Plan CV5.0 Water Distribution and Sanitary Sewer Plan CV6.0 Planting Plan CV6.1 Planting Plan CV6.2 Buffer Tree Inventory CV6.3 Buffer Enhancement Plan CV7.0 Site Details CV7.1 Site Details CV7.2 Site Details CV7.3 Site Details CV7.4 Site Details RECEIVED DIVISION OF WATER QUALITY SEP 3 0 2010 SWP SECTION MOORESVILLE REGIONAL OFFICE AND 3 WW WE BVNCN P:\SDSKPROJ\50243\_Correspondences\2010\Misc\0929 sheet listing.doc I D-ola?7 Date Received Fee Paid Permit Number RECEIVED State of North Carolina DIVISION OF WATER QUALITY Department of Environment and Natural Resources 0 2010 Division of Water Quality SEP 3 SWP SECT ION STORMWATER MANAGEMENT PERMIT APPLICATION Wfd&VILLE REGIONAL OFFICE This form may be photocopied for use as an original 1. GENERAL INFORMATION 1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): ?0% OAT I ? ?? / 2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance7.44, q, Vi- Trey Morgan "'?%?? 3. Mailing Address for person listed in item 2 above: 14120 Ballantyne Court Suite 460 City: Charlotte State: NC Zip:28277 Phone: (704 ) 909-4500 Fax: (704 ) 909-4501 Email: TMorgan@morganpg.com 4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Walg_reens - Store No 13036 5. Location of Project (street address): 7359 NC Highway 73 City:Denver County:Lincoln Zip:28040 6. Directions to project (from nearest major intersection): Driving west on Highway 73 from Huntersville the site is located at the northwest corner of Highway 73 and Hiewav 16. 7. Latitude:35° 26' 50" N Longitude:80° 59' 50" W of project 8. Contact person who can answer questions about the project: Name: R. Todd Fisher, PE Email: tfisher@colejeneststone.com II. PERMIT INFORMATION: 1. Specify whether project is (check one): ®New Telephone Number: (919 ) 719-1800 ?Renewal ?Modification Form SWU-101 Version 09.25.08 Page 1 of 4 -:4 . . . 2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the existing permit number N/A and its issue date (if known) N/A 3. Specify the type of project (check one): ?Low Density ®High Density ?Redevelop ?General Permit ?Universal SMP ?Other 4. Additional Project Requirements (check applicable blanks; information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748): ?CAMA Major ®Sedimentation/Erosion Control ®404/401 Permit ?NPDES Industrial Stormwater III. PROJECT INFORMATION 1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative (one to two pages) describing stormwater management for the project. The currently undeveloped property is being subdivided and partially developed for a Walgreen's store. An underground sand filter will be used to treat the runoff from the building, parking lot, and drive aisles. 2. Stormwater runoff from this project drains to the Catawba River basin. 3. Total Property Area: 2.44 acres 4. Total Coastal Wetlands Area: 0.00 acres 5. Total Property Area (3) - Total Coastal Wetlands Area (4) = Total Project Area**:2.44 6. (Total Impervious Area / Total Project Area) X 100 = Project Built Upon Area (BUA):78 7. How many drainage areas does the project have?l 8. Complete the following information for each drainage area. If there are more than two drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. For high density projects, complete the table with one drainage area for each engineered stormwater device. MOE Receiving Stream Name Forney Creek Stream Class & Index No. C, 11-119-2-3 Total Drainage Area (sf) 86,684 On-site Drainage Area (sf) 70,096 Off-site Drainage Area (sf) 16,588 Existing Impervious* Area (sf) 0 Proposed Impervious*Area (sf) 69,347 % Impervious* Area (total) 78 On-site Buildings (sf) 14,783 On-site Streets (sf) On-site Parking (sf) 35,655 On-site Sidewalks (sf) 2,321 Other on-site (sf) Off-site (sf) 16,588 Total (sf): 68,633 * Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc. **Total project area shall be calculated to exclude Coastal Wetlands from use when calculating the built upon area percentage calculation. This is the area used to calculate overall percent project built upon area (BUA). acres Form SWU-101 Version 09.25.08 Page 2 of 4 9. How was the off-site impervious area listed above derived? Drainage that is acceptedfrom off-site is collected in structures CI-A-17 and CI-A13. The impervious area is an off-site driveway. Projects in Union County: Contact the DWQ Central Office staff to check to see if you project is located within a Threatened & Endangered Species watershed that may be subject to more stringent stormwater requirements. IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS One of the following property restrictions and protective covenants are required to be recorded for all subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table listing each lot number, size and the allowable built-upon area for each lot must be provided as an attachment. Forms can be downloaded from http://h2o.enr.state.nc.us/su/bml2 forms.htm - deed restrictions. Form DRPC-1 High Density Commercial Subdivisions Form DRPC-2 High Density Developments with Outparcels Form DRPC-3 High Density Residential Subdivisions Form DRPC-4 Low Density Commercial Subdivisions Form DRPC-5 Low Density Residential Subdivisions Form DRPC-6 Low Density Residential Subdivisions with Curb Outlets By your signature below, you certify that the recorded property restrictions and protective covenants for this project shall include all the applicable items required in the above form, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the NC DWQ, and that they will be recorded prior to the sale of any lot. V. SUPPLEMENT FORMS The applicable state stormwater management permit supplement form(s) listed below must be submitted for each BMP specified for this project. Contact the Stormwater Permitting Unit at (919) 807-6300 for the status and availability of these forms. Forms can be downloaded from http://h2o.enr.state.nc.us/su/bmp forms.htm. Form SW401-Low Density Form SW401-Curb Outlet System Form SW401-Off-Site System Form SW401-Wet Detention Basin Form SW401-Infiltration Basin Form SW401-Infiltration Trench Form SW401-Bioretention Cell Form SW401-Level Spreader Form SW401-Wetland Form SW401-Grassed Swale Form SW401-Sand Filter Form SW401-Permeable Pavement Form SW401-Cistern Low Density Supplement Curb Outlet System Supplement Off-Site System Supplement Wet Detention Basin Supplement Infiltration Basin Supplement Underground Infiltration Trench Supplement Bioretention Cell Supplement Level Spreader/Filter Strip/Restored Riparian Buffer Supplement Constructed Wetland Supplement Grassed Swale Supplement Sand Filter Supplement Permeable Pavement Supplement Cistern Supplement Form SWU-101 Version 09.25.08 Page 3 of4 VI. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A complete package includes all of the items listed below. The complete application package should be submitted to the appropriate DWQ Office. (Appropriate office may be found by locating project on the interactive online map at hgp://h2o.enr.state.nc.us/su/msi maps.htm) 1. Please indicate that you have provided the following required information by initialing in the space provided next to each item. Ini ials • Original and one copy of the Stormwater Management Permit Application Form • Original and one copy of the Deed Restrictions & Protective Covenants Form (if required as per Part IV above) • Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP • Permit application processing fee of $505 (Express: $4,000 for HD, $2,000 for LD) payable to NCDENR _ • Calculations & detailed narrative description of stormwater treatment/management • Copy of any applicable soils report • Two copies of plans and specifications (sealed, signed & dated), including: it! ILI - Development/Project name - Engineer and firm - Legend - North arrow - Scale - Revision number & date - Mean high water line - Dimensioned property/project boundary - Location map with named streets or NCSR numbers - Original contours, proposed contours, spot elevations, finished floor elevations - Details of roads, drainage features, collection systems, and stormwater control measures - Wetlands delineated, or a note on plans that none exist - Existing drainage (including off-site), drainage easements, pipe sizes, runoff calculations - Drainage areas delineated - Vegetated buffers (where required) VII. AGENT AUTHORIZATION If you wish to designate authority to another individual or firm so that they may provide information on your behalf (such as additional information requests), please complete this section. (ex. designing engineer or firm) Designated agent (individual or firm): Colejenest & Stone Mailing Address: 150 Fayetteville Street, Suite 950 City: Raleigh State: NC Zip: 27601 Phone: ( 919 ) 719-1800 Email:tfisher@colejeneststone.com VIII. APPLICANT'S CERTIFICATION Fax: ( 919 ) 719-1819 I, (print or type name of person listed in General Information, item 2) K( c /'r f G'1 certify that the information included on this permit application form is, to a best of my knowledge, correct and that the project will be constructed in conformance with the approved plan a required deed restrictions and protective co 1 be recorded, and that the proposed ct complies with the requirements of 15A NCAC 2H .1000. venant Date:-205410 Fonn S)&'U-101 Version 09.25.08 Page 4 of 4 Permit Number: (to be provided by D WQ) ? M of W ATF9 50 OG NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM SAND FILTER SUPPLEMENT This form must be filled out on line, printed and submitted with all of the required information. Make sure to also fill out and submit the Required Items Checklist (Section III) and the I&M Agreement (Section IV) Project name Walgreen's - Store No. 13036 Contact name R. Todd Fisher, PE Phone number (919) 719-1800 Date September 29, 2010 Drainage area number 1 Site Characteristics Drainage area (AD) 86,684.00 ft2 OK Impervious area 69,347.00 ft2 % Impervious (IA) 800% % Design rainfall depth (RD) 1.00 in Peak Flow Calculations 1-yr, 24-hr runoff depth in 1-yr, 24-hr intensity in/hr Pre-development 1-yr, 24-hr runoff ft3/sec Post-development 1-yr, 24-hr runoff ft3/sec Pre/Post 1-yr, 24-hr peak control ft 3/sec Storage Volume Design volume (WQV) 5,674.00 ft3 Adjusted water quality volume (WQVAd) 4,255.50 ft3 OK Volume contained in the sedimentation basin and on top of the sand filter 4,480.00 Top of sand filter/grate elevation 35.333 ft amsl Weir elevation (between chambers) 33.833 ft amsl Maximum head on the sedimentation basin and sand filter (hMa.Flter) 4.00 ft OK Average head on the sedimentation basin and sand filter (hA) 2.00 ft OK Runoff Coefficient (Rv) 0.77 (unitless) Type of Sand Filter Open sand filter? Y or N SHWT elevation ft amsl Bottom of the sand filter elevation ft amsl Clearance (dSHwr) Closed/pre-cast sand filter? Y Y or N SHWT elevation 25.00 ft amsl Bottom of the sand filter elevation 27.67 ft amsl Clearance (dSHWT) 2.00 If this is a closed, underground closed sand filter: The clearance between the surface of the sand filter and the bottom of the roof of the underground 4.50 ft structure (dspwe) Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and 11. Project Design Summary, Page 1 of 2 Permit Number: (to be provided by DWQ) Sedimentation Basin Surface area of sedimentation basin (As) Sedimentation basin/chamber depth Sand Filter Surface area of sand filter (AF) Top of sand media filter bed elevation Bottom of sand media filter bed/drain elevation Depth of the sand media filter bed (dF) Coefficient of permeability for the sand filter (k) Outlet diameter Outlet discharge/flowrate Time to drain the sand filter (t) Time to drain the sand filter (t) Additional Information Does volume in excess of the design volume bypass the sand filter? Is an off-line flow-splitting device used? If draining to SA waters: Does volume in excess of the design volume flow evenly distributed through a vegetated filter? What is the length of the vegetated filter? Does the design use a level spreader to evenly distribute flow? Is the BMP located at least 30ft from surface waters (50ft if SA waters)? If not a closed bottom, is BMP located at least 100ft from water supply wells? Are the vegetated side slopes equal to or less than 3:1 Is the BMP located in a recorded drainage easement with a recorded access easement to a public Right of Way (ROW)? What is the width of the sedimentation chamber/forebay (Wsed)? What is the depth of sand over the outlet pipe (dpipe)? 560.00 ft2 OK. Meets minimum, but may need to be increased to 7.00 ft Y Yor N OK Y Y or N OK Yor N ft Yor N Y Y or N OK Yor N Yor N Y Y or N OK 8.00 ft OK 1.50 ft OK Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and II. Project Design Summary, Page 2 of 2 Permit No. (to be provided by DWQ) Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Initials Pagel Plan Sheet No. - Connection between the sedimentation chamber and the sand filter chamber and weir elevation, - SHWT elevation, - Outlet pipe, and - Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if applicable). NOT irv4"ED 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The results of the soils report must be verified in the field by DWQ, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. ATrk tED 5. Supporting calculations (including drainage calculations) t ILW sW? MW 6. Signed and notarized operation and maintenance (0&M) agreement JtXV0V__ ilk 7. A copy of the deed restrictions (if required). 6v to 0T.K 1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries - System dimensions (length, width, and depth) for both the sedimentation chamber and the filter chamber, - Maintenance access, - Flow splitting device, - Proposed drainage easement and public right of way (ROW), - Design at ultimate build-out, - Off-site drainage (if applicable), and - Boundaries of drainage easement. 2. Plan details (1" = 30' or larger) for the sand filter showing: - System dimensions (length, width, and depth) for both the sedimentation chamber and the chamber, - Maintenance access, - Flow splitting device, - Vegetative filter strip dimensions and slope (if SA waters), - Proposed drainage easement and public right of way (ROW), - Design at ultimate build-out, - Off-site drainage (if applicable), and - Boundaries of drainage easement. filter ?V ?• 3. Section view of the sand filter (1" = 20' or larger) showing: - Depth(s) of the sedimentation chamber and sand filter chamber, - Depth of sand filter media, Form SW401-Sand Filter-Rev.5 2009Sept17 Part III, Page 1 of 1 Charlotte Raleigh Wilmington Land Planning Landscape Architecture Civil Engineering Urban Design 200 South Tryon Street, Suite 1400 Charlotte, North Carolina 28202 P+ 704 376 1555 f+ 704 376 7851 WALGREENS - STORE NO. 13036 CJS # 50243 CALCULATIONS FOR: EROSION CONTROL STORM DRAINAGE ANALYSIS STORMWA TER (WATER QUALITY) DATE: 09.29.10 REV 1.0 IVA CA r.: *-co SEAL ?` • n, .6 C-103 •'•.AwM CARS FI$N???. CJS Project No. 50243 Issued: 07/20/10 Page 1 of 1 PROJECT NARRATIVE Walgreens - Denver Lincoln County, North Carolina PROJECT DESCRIPTION The proposed project consists of a Walgreens store to be constructed within a 4.25-acre parcel at the intersection of NC Highway 16 and NC Highway 73 in Lincoln County, North Carolina. Only a portion of the existing parcel (f2.5 acres) is to be developed, with approximately 1.8 acres being retained for future development (Parcel B). The project will access both NC 16 and NC 73 via right-in/right-out driveways and will have an interparcel connection to a proposed full- movement driveway at NC 73 in conjunction with developments to the west. The project lies outside of the Lake Norman/Catawba River watershed protection area and is not located within an NPDES Phase II community. Therefore, the project is not subject to stormwater management requirements under these programs. DRAINAGE DESIGN The property is traversed by an unnamed tributary to Forney Creek. The tributary is collected in an existing 60-inch culvert at the southeast corner of the property which carries the flow under Highway 73 (Culvert B). Under the proposed project, a portion of the existing onsite channel will be placed within a second culvert (Culvert A) to accommodate the proposed driveway connection to NC 16. Impacts to the existing channel are to be limited to 145 LF in accordance with Nationwide 39 General Permit Authorization No. SAW-2010-00882 issued by the U.S.A.C.O.E. Wilmington District-Asheville Field Office, July 9, 2010. The proposed Culvert A has been sized to pass the peak flow from the 25-year storm based on ultimate development conditions within the watershed under current zoning. However,. drainage calculations indicate that the existing Highway 73 culvert is undersized relative to ultimate development peak flows within the watershed. Accordingly, unless the capacity of the existing Culvert B is increased, significant backwater at the inlet to the culvert is anticipated which will impact the performance of the proposed driveway Culvert A. In accordance with Condition No. 4 of General Water Quality Certification No. 3631 which accompanies the NWP 39 authorization, the NCDENR Division of Water Quality requires that the project include stormwater best management practices to control and treat site runoff. Accordingly, the project stormwater management plan includes a below grade sand filter to capture and treat the runoff from proposed building and parking areas. STREAM BUFFER Under the Lincoln County Streamside Buffer regulations, a 50-foot buffer will be established and maintained along the tributary channel at the Highway 16 frontage. In accordance with the variance approved on May 24, 2010, to allow the driveway and outfall channel encroachment into the buffer zone, the remaining undisturbed buffer area will be enhanced via supplemental planting per the Buffer Enhancement Plan. EROSION CONTROL ,SEDIMENT TRAP CALCULATIONS WALGREENS - STORE NO. 13036 CJS PROJECT NO.: 50243 TE: 07.20.10 BY: DJM REVISED: RVW: RTF O Charlotte Raleigh ColeJenest Wilmington & Stone Land Planning + Landscape Architecture + Civil Engineering + Urban Design TEMPORARY SEDIMENT TRAP #1 NCDENR? 1 f-- IF Yes, Type: 1 DRAINAGE AREAS/REQ'D STORAGE DESIGN CRITERIA Total drainage area (TDA) 2.2 ac Proposed sediment depth 2 ft Disturbed area(DA) 2.2 ac Bottom elevation of basin 728 msl Required sediment storage 3600xDA 7848 cf Depth of flow over spillway 1.0 ft BASIN CONFIGURATION Bottom elevation 728 msl Sediment Storage elevation 730 msl Spillway crest 731 msl To of Berm 731.5 msl ESTIMATED BASIN SIZE (RECTANGULAR) Length(ft) Width(ft) Bottom 85 41 To 99 55 BASIN EFFICIENCY Sediment storage required: 7848 cf Sediment storage provided: 7861.5 OKAY Surface area required. 4002 Surface area provided. 4868 OKAY PLANNED BASIN SIZE REFER TO EROSION CONTROL PLAN Elev. Area (SF) Cumulative Volume (CF) 728 3031 0 729 3912 3472 730 4868 7862 731 5881 13236 732 6950 19652 X 0 0 X 0 0 X 0 0 X 0 0 X 0 0 X 0 0 SPILLWAY DESIGN DESIGN FLOW (Q=CIA SPILLWAY SIZE Composite soil coefficient 'C'= 0.6 Spillway design: (L=Q1(C*h"1.5)); C= 3.0 Area 'A'= 2.18 ac h= 1.00 10 yr. storm rainfall intensity, T= 7.03 in/hr Spillway length @ flow depth 10 Computed flow from site, 'Q'= 9.20 cfs Page 4 of 9 'SEDIMENT TRAP CALCULATIONS WALGREENS - STORE NO. 13036 CJS PROJECT NO.: 50243 DATE: 07.20.10 BY: DJM D RVW: RTF O Charlotte Raleigh ColeJenest Wilmington & Stone Land Planning + Landscape Architecture + Civil Engineering + Urban Design TEMPORARY SEDIMENT TRAP #2 NCDENR? 714- IF Yes, Type DRAINAGE AREAS/REQ'D STORAGE DESIGN CRITERIA Total drainage area (TDA) 0.8 ac Proposed sediment depth 2 ft Disturbed area(DA) 0.8 ac Bottom elevation of basin 743 msl Required sediment storage (3600xDA) 2772 cf Depth of flow over spillway 1.0 ft BASIN CONFIGURATION Bottom elevation 743 msl Sediment Storage elevation 745 msl Spillway crest 745 msl To of Berm 746.5 ms/ ESTIMATED BASIN SIZE RECTANGULAR Length(ft) Width(ft) Bottom 49 23 To 63 37 BASIN EFFICIENCY Sediment storage required: 2772 cf Sediment storage provided: 2813.5 OKAY Surface area required: 1413.75 Surface area provided. 1850 OKAY PLANNED BASIN SIZE REFER TO EROSION CONTROL PLAN) Elev. Area (SF) Cumulative Volume (CF) 743 991 0 744 1393 1192 745 1850 2814 746 2364 4921 X 0 0 X 0 0 X 0 0 X 0 0 X 0 0 X 0 0 X 0 0 SPILLWAY DESIGN DESIGN FLOW Q=CIA SPILLWAY SIZE Composite soil coefficient 'C'= 0.6 Spillway design: (L=Q1(C*h"1.5)); C= 3.0 Area 'A' = 0.77 ac h= 1.00 10 yr. storm rainfall intensity, T= 7.03 in/hr Spillway length @ flow depth 10 Computed flow from site, 'Q'= 3.25 cfs Page 5 of 9 RIPRAP APRON DESIGN Charlotte WALGREENS - STORE NO. 13036 Raleigh +ColeJenest Wilmington CJS PROJECT NO.: 50243 & Stone DATE: 09.29.10 BY: DJM REVISED: RVW: RTF Land Planning + Landscape Architecture + Civil Engineering + Urban Design FES # DIA (ft) SLOPE (ft/ft) n V (ft/s) Q (cfs) RIP RAP CLASS LENGTH (ft) WIDTH (ft) DEPTH (in) FES-A1 2 0.005 0.013 5.09 13.64 B 16 22 24 XXX XX XXXX XXXX XX #VALUE! #VALUE! XXX XX XXXX XXXX # XX #VALUE! #VALUE! XXX XX XXXX XXXX # XX #VALUE! #VALUE! XXX XX XXXX XXXX # XX #VALUE! #VALUE! XXX XX XXXX XXXX XX #VALUE! #VALUE! 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(n V N C>- 4) (m (07 v v m co m M M Cl) M M M M M M (M M M co N N N r r r rn r r r r r n_ r r r r r r r r r r r r r r w d T NU N O o 0 0 V 0 V 0 0 N M M M r r 0 M 0 V V 0 N o 0 0 0 r r (D M (D 10 O M- CF) M r m (D M 0 m r 0 0 O O O O to M 0 V co r V 0 V M r (D 0 V V (O r 0 0 Q ? v C p p L L L L L L L L L L L L L L L L L L L L U U U U U U U L L U U U U U U U L U U U U U U C C C c c C C U U C C C C N C C C U C C C C C C C (n LO (O 00 00 M) (0 U) 'o - W o m O m m OD OD (O (0 U) N N N Y u! C (D V M N V V r O (O m r N (O 00 m N r OD M M CO (D ? O M M M M r r V (0 r V U? (9 Lq N V O O m r c7 .0) N N N 'q (0 () CF) OD O O- O N O CO N O M M M CO (D N X (1) W O O. 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(D (O V N 0 O aZ M a ^' ce) o0C14 CO C14 o a=aQaacL = a L ooa m UU= oovUUUV?ov??°vUC?u 2o- ? ? o O N C O d rn ui W U ? N (O O > d ? Q U E 0 (D (D O U) u7 r M 0 N Q M U) 0) r - ED O H U 0O r N U C E N T U) a m E ; co ?O O M m O OS M U E 0.2 Z 2 I? O .S a c N U2 56 c o ? M O j N O 3: 0- ?6) N N m H d 0 Ditch A Worksheet for Triangular Channel Project Description Project File p:\sdskproj\50243\engineering\calculations\50243 di.fm2 Worksheet Ditch A Flow Element Triangular Channel Method Manning's Formula Solve For Channel Depth Input Data Mannings Coefficient 0.054 Channel Slope 0.035000 ft/ft Left Side Slope 2.000000 H : V Right Side Slope 2.000000 H : V Discharge 0.81 cfs Results Depth 0.47 ft Flow Area 0.44 ftz Wetted Perimeter 2.11 ft Top Width 1.89 ft Critical Depth 0.40 ft Critical Slope 0.084333 ft/ft Velocity 1.82 ft/s Velocity Head 0.05 ft Specific Energy 0.52 ft Froude Number 0.66 Flow is subcritical. 07/20/10 FlowMaster v5.13 02:54:51 PM Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 (203) 755-1666 Page 1 of 1 Ditch B Worksheet for Trapezoidal Channel Project Description Project File p:\sdskproj\50243\engineering\calculations\50243 di.fm2 Worksheet Ditch B Flow Element Trapezoidal Channel Method Manning's Formula Solve For Channel Depth Input Data Mannings Coefficient 0.032 Channel Slope 0.010000 ft/ft Left Side Slope 3.000000 H : V Right Side Slope 3.000000 H : V Bottom Width 2.00 ft Discharge 12.10 cfs Results Depth 0.86 ft Flow Area 3.97 ft2 Wetted Perimeter 7.47 ft Top Width 7.19 ft Critical Depth 0.73 ft Critical Slope 0.019995 ft/ft Velocity 3.05 ft/s Velocity Head 0.14 ft Specific Energy 1.01 ft Froude Number 0.72 Flow is subcritical. 07/20/10 FlowMaster v5.13 02:42:07 PM Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 (203) 755-1666 Page 1 of 1 CULVERT DESIGN Y ? z.,-$ ? ?^?g?. ?$ ? ^".€ ??"Sg3 ?+d?Fw? +'IgnY; ??. ?p®yq?,?yj VW G i f1 rZ r N W D Z U O . WQfgl??I1S Denver i !'viit Taosonrr,ternsiwe+ ? ' i8!` Stitt, tAt)(1 crndw v r?c??„aas2oa PtCv'JE%i i`v 50243 BY. F?'7F r ay St ? P ? t v e i?.} F. 704 ? 85 ?? U ? X 7 76 75?? one ~ 7 f tt w cd Tt te e:s DATE: 7/20/2010 T.M.: RTF , n,ne n iw a 3 REVISED: P. M.: RTF CULVER T DESIGN DRAINAGE AREAS: (see attached drainage area map) Basin A 64.7 acres 0.101094 s q. miles Basin B 59.6 acres 0.093125 s q. miles SOIL TYPES: (see attached soils map) Ce Cecil B Gn Gaston C Wn Winnsboro D Zw Zion C CURVE NUMBER: nA t?tr rm?nrrousT Soil Group Area ac % CN Md. CN ? Road r?O x.03 0.05 96 +.5 D 0.48 0.01 96 0.7 B-G (General Business) 85 C 7.67 0.12 94 11.1 D 1.19 0.02 95 1.7 B-N (Neighborhood Business) 85 C 2.56 0.04 94 3.7 R-T (Transitional Residential) 40 C 39.83 0.62 84 51.7 D 2.12 0.03 87 2.9 R-S (Residential Suburban) 40 c 1.45 0.02 84 1.9 D 6.36 0.10 87 8.6 Total 64.7 86.8 Com osite CN 86.8 Use CN = 87 in A J - - _ - it Roao KCJL?V % brvious soy Gr is c D oin Ara cg % u.i?3 0.01 0.94 0.01 3.93 0.06 CN tMtd CN 94 i. 96 1.4 96 5.8 B-G (General Business) 85 B 1.28 0.02 92 1.8 c 12.20 0.19 94 17.7 D 11.76 0.18 95 17.3 R-T (Transitional Residential) 40 c 20.00 0.31 84 26.0 D 8.17 0.13 87 11.0 R-S (Residential Suburban) 40 c 0.21 0.00 84 0.3 D 0.26 0.00 87 0.3 Total 59.6 82.8 Com osite CN 82.8 Use CN = 83 Page 1 of 1 Culvert Designer/Analyzer Report Culvert A Component: Culvert-1 Culvert Summary Computed Headwater Elevs Inlet Control HW Elev. Outlet Control HW Elev. Headwater Depth/Height 734.49 ft 733.84 ft 734.49 ft 1.25 Discharge Tailwater Elevation Control Type 141.00 cfs 733.84 ft Outlet Control Grades Upstream Invert Length 727.00 ft 60.00 ft Downstream Invert Constructed Slope 724.00 ft 0.050000 ft/ft Hydraulic Profile Profile PressureProfile Slope Type N/A Flow Regime N/A Velocity Downstream 4.99 ft/s Depth, Downstream Normal Depth Critical Depth Critical Slope 9.84 ft 1.56 ft 3.22 ft 0.003497 ft/ft Section Section Shape Section Material Section Size Number Sections Circular Concrete 72 inch 1 Mannings Coefficient Span Rise 0.013 6.00 ft 6.00 ft Outlet Control Properties Outlet Control HW Elev. Ke 734.49 ft 0.50 Upstream Velocity Head Entrance Loss 0.39 ft 0.19 ft Inlet Control Properties Inlet Control HW Elev. 733.84 ft Inlet Type Square edge w/headwall K 0.00980 M 2.00000 C 0.03980 Y 0.67000 Flow Control Area Full HDS 5 Chart HDS 5 Scale Equation Form Unsubmerged 28.3 ft: 1 1 1 Title: 50243 - Walgreens Denver Project Engineer: RTF p:\...\50243\engineering\calculations\50243.cvm CulvertMaster v3.1 [03.01.009.00] 07/20/10 03:11:31 FOBentley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA +1-203-755-1666 Page 2 of 2 Culvert Designer/Analyzer Report Culvert A Analysis Component Storm Event Design Discharge 141.00 cfs Peak Discharge Method: User-Specified Design Discharge 141.00 cfs Check Discharge 173.00 cfs Tailwater Conditions: Constant Tailwater Tailwater Elevation 733.84 ft Name Description Discharge HW Elev. Velocity Culvert-1 1-72 inch Circular 141.00 cfs 734.49 ft 4.99 ft/s Weir Not Considered N/A N/A N/A Title: 50243 - Walgreens Denver Project Engineer: RTF p:\...\50243\engineering\calculations\50243.cvm CulvertMaster v3.1 [03.01.009.00] 07/20/10 03:11:31 IOBentley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA +1-203-755-1666 Page 1 of 2 1 10 Culvert Designer/Analyzer Report Culvert B Component: Culvert-1 Culvert Summary Computed Headwater Elev< inlet Control HW Elev. Outlet Control HW Elev. Headwater Depth/Height 733.84 ft 733.84 ft 732.57 ft 2.08 Discharge Tailwater Elevation Control Type 263.00 cfs N/A ft Inlet Control Grades Upstream Invert Length 723.42 ft 107.00 ft Downstream Invert Constructed Slope 720.39 ft 0.028318 ft/ft Hydraulic Profile Profile S2 Slope Type Steep Flow Regime Supercritical Velocity Downstream 19.43 ft/s Depth, Downstream Normal Depth Critical Depth Critical Slope 3.26 ft 2.79 ft 4.50 ft 0.008978 ft/ft Section Section Shape Section Material Section Size Number Sections Circular Concrete 60 inch 1 Mannings Coefficient Span Rise 0.013 5.00 ft 5.00 ft Outlet Control Properties Outlet Control HW Elev. Ke 732.57 ft 0.50 Upstream Velocity Head Entrance Loss 3.10 ft 1.55 ft Inlet Control Properties Inlet Control HW Elev. 733.84 ft Inlet Type Square edge w/headwall K 0.00980 M 2.00000 C 0.03980 Y 0.67000 Flow Control Area Full HDS 5 Chart HDS 5 Scale Equation Form Submerged 19.6 ft2 1 1 1 Title: 50243 - Walgreens Denver Project Engineer: RTF p:\...\50243\engineering\calculations\50243.cvm CulvertMaster v3.1 [03.01.009.00] 07/20/10 03:12:18 OUBentley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA +1-203-755-1666 Page 2 of 2 Culvert Designer/Analyzer Report Culvert B Analysis Component Storm Event Design Discharge 263.00 cfs Peak Discharge Method: User-Specified Design Discharge 263.00 cis Check Discharge 324.00 cis Tailwater Conditions: Constant Tailwater Tailwater Elevation N/A ft Name Description Discharge HW Elev. Velocity Culvert-1 1-60 inch Circular 263.00 cfs 733.84 ft 19.43 ft/s Weir Not Considered N/A N/A N/A i Title: 50243 - Walgreens Denver Project Engineer: RTF p:\...\50243\engineering\calculations\50243.cvm CulvertMaster v3.1 [03.01.009.00] 07/20/10 03:12:18 FOMentley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA +1-203-755-1666 Page 1 of 2 W'aI rams Denver ar #RJR N Suit, IL" South fijdn mt, t sa } 1400 Cmgmtg: Vanh Cardibm 20202 PROJECT NO. 50243 BY: RTF GaleJenesf CivilF.n alrinq 17?7M.176 Iasi DATE: 07120110 T. M: RTF & Stone uran D64a wuwroWlteusrarc can- REVISED: P.M.: RTF CULVERt DESIGN TIME OF CONCENTRATION - BASIN A Page 1 of 2 ? ?W ?auth iryoa 57rPPE LG11? n?AnlSli;Q. „We-1400 (:DldaeR A2GiWure Cfwlwe V"lhCaraliaa28202- PROJECT NO. 50243 BY: RTF GQCe},?IieS'f e""`" "°y . rV 04 376 7851 stoN` a wao Qi~3o YiIPW (DEP?PHPUStpBf tJ111 DATE: 07120110 RTF REVISED: P.M.: RTF CULVERT DESIGN TIME OF CONCENTRATION - BASIN B Page 2 of 2 La; 7 i tt Pir i(rJ 700 &wtk TryM strat 50243 PROJECT NO BY: RTF 9.44 1 d 00 rlmte rtteth ('rm7firn JMAIJ GoleJeanest r TO 704.376 1555 . Fa.704. 3M 7841 DATE: 07i20i10 T.M.: RTF & Storrs u, t r REVISED: P.M.: RTF RIPRAP APRON DESIGN Tractive Force Procedure Determine shear stress, T, at normal depth T=yds y = unit weight of water, 62.4 Ib/ft3 d = flow depth in feet = 4.67 ft (See attached FlowMaster calculation) s = channel gradient in ft/ft = 0.015 T = (62.4 Ib/ft3) x (4.67 ft) x 0.015 T = 4.37 Ib/ft2 Td = Permissible Unit Shear Stress If Td > T, then the riprap is considered acceptable Therefore, choose Td >T Using Table 8.05g, Td of 5.0 Ib/ft2 corresponds with riprap size of 12" Determine riprap size for side slopes dso (sides) = Kj/K2 X dso (bottom) K, = 0.98 (Table 8.05h) B = width of channel bottom = 2.8 ft d = flow depth = 4.67 ft B/d = 2.8/4.67 = 0.6 z = side slope = 2.5 K2 = 0.84 (Table 8.05i) Angle of repose = 41.5° (d50 = 12 inches, angular) Side slope, z = 2.5 dso(sides) = K, /K2 = 0.98/0.84 = 1.17' Therefore, use d50 = 15" for side slopes Thickness = 1.5 x largest rock in gradation Page 1 of 1 II l ?? ?--1 Q r R N W cis to J (n cnl cc 0000' • m \'\ d cc = p p \ \ •L a j 79 41 4 Gr , 40P 1 411 W u r o Z Li cri l 1 .C I - -??J 1 0 1 _ \ a+ :0 R Cts ol CL ?_ / / ) U¢ V ; 18 z ,? JN - I 1 O / =e \ II ? ? a \\\\ \ iii ??1\?\ 0 f ? IL T KN AD I ? 0000 I CD0 C r \ \ I / / C M cc j, l ° D 0 oy? \ ? N a m rn } Z \4/ co k4i \ H `Ih`', 11 lY ` / \ \ GLI P .,F FA ' 1'E;Li 199P?N`P?h',I, \ 11 oil 41P CID 00 / \ lSlih !` S{'1,"':, P :S'M:: "S • I Z Sao cc Lu C-) m ?Z o H w V LU CL OZ ? ` \ \ N C w N !/ \ \ ea c t c ?? 11?t'1 1 1 ? E ???? * FLOOD HYDROGRAPH PACKAGE (HEC-1) * JUN 1998 * VERSION 4.1 x * * RUN DATE 12JUN06 TIME 13:13:26 * * *#******x*#«###*i******iiii#*****#x****** * * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756-1104 « * X X XXXXXXX XXXXX X X x x X X XX X X X X X ?/ y /W y y? ??y xMM XXXX ?/?/y X xxxxx x X X X X X X X X X X X X y ?/?/?/ yX X xxxxM y?/?/yAA X XXX M THIS PROGRAM REPLACES ALL PREVIOUS VERSIONS OF HEC-1 KNOWN AS HEC1 (JAN 73), HECIGS, HEC1DB, AND HEC1 KW. THE DEFINITIONS OF VARIABLES -RTIMP- AND -RTIOR- HAVE CHANGED FROM THOSE USED WITH THE 1973-STYLE INPUT STRUCTURE. THE DEFINITION OF -AMSKK- ON RM-CARD WAS CHANGED WITH REVISIONS DATED 28 SEP 81. THIS IS THE FORTRAN77 VERSION NEW OPTIONS: DAMBREAK OUTFLOW SUBMERGENCE, SINGLE EVENT DAMAGE CALCULATION, DSS:WRITE STAGE FREQUENCY, DSS:READ TIME SERIES AT DESIRED CALCULATION INTERVAL LOSS RATE:GREEN AND AMPT INFILTRATION KINEMATIC WAVE: NEW FINITE DIFFERENCE ALGORITHM HEC-1 INPUT PAGE 1 LINE ID....... 1....... 2....... 3....... 4....... 5....... 6....... 7....... 8....... 9...... 10 *** FREE *** 1 ID 3509: WALGREENS EAST LINCOLN, LINCOLN COUNTY, NC 2 ID PROPOSED CULVERT DESIGN 3 ID ULTIMATE DEVELOPMENT CONDITIONS 4 IT 2 01JAN00 1200 1000 5 IN 60 01JAN00 1200 6 10 0 0 * 10-YEAR STORM x 7 KK A-10 8 KM TOTAL AT DRIVEWAY CULVERT 9 KO 3 1 10 BA 0.10109 11 LS 0 87 12 PB 4.90 13 PC 0 0.01 0.02 0.04 0.05 0.07 0.08 0.10 0.12 0.15 14 PC 0.19 0.24 0.66 0.78 0.82 0.86 0.88 0.90 0.92 0.94 15 PC 0.96 0.97 0.98 0.99 1 16 LID 0.17 17 KK B-10 18 KO 3 1 19 BA 0.09313 20 LS 0 83 21 UD 0.13 I 72 PC 0.96 0.97 0.98 0.99 1 73 UD 0.17 74 KK B-100 75 KO 3 1 76 BA 0.09313 77 LS 0 83 78 UD 0.13 HEC-1 INPUT LINE ID....... 1....... 2....... 3....... 4....... 5....... 6....... 7....... 8....... 9...... 10 79 KK TOT-100 80 KM TOTAL AT HWY. 73 CULVERT 81 KO 3 1 82 HC 2 83 84 ZZ 1#*#+t+##x*xxxxxxxxxw*r**r*#*#+r++*xxxxxx# * FLOOD HYDROGRAPH PACKAGE (HEC-1) * JUN 1998 * VERSION 4.1 x x * RUN DATE 12JUN06 TIME 13:13:26 x x x****#xx+xxxxxx*x+xx+++**+++#x*++#xx*xx#* PAGE 3 # # * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756-1104 * * *#*#*#*#*****#*#####*********#*******## 3509: WALGREENS EAST LINCOLN, LINCOLN COUNTY, NC PROPOSED CULVERT DESIGN ULTIMATE DEVELOPMENT CONDITIONS 610 OUTPUT CONTROL VARIABLES IPRNT 0 PRINT CONTROL IPLOT 0 PLOT CONTROL QSCAL 0. HYDROGRAPH PLOT SCALE IT HYDROGRAPH TIME DATA WIN 2 MINUTES IN COMPUTATION INTERVAL IDATE 1JAN 0 STARTING DATE ITIME 1200 STARTING TIME NQ 1000 NUMBER OF HYDROGRAPH ORDINATES NDDATE 2JAN 0 ENDING DATE NDTIME 2118 ENDING TIME (CENT 19 CENTURY MARK COMPUTATION INTERVAL .03 HOURS TOTAL TIME BASE 33.30 HOURS ENGLISH UNITS DRAINAGE AREA SQUARE MILES PRECIPITATION DEPTH INCHES LENGTH, ELEVATION FEET FLOW CUBIC FEET PER SECOND STORAGE VOLUME ACRE-FEET SURFACE AREA ACRES TEMPERATURE DEGREES FAHRENHEIT * * 11 LS 16 UD . 00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 SCS LOSS RATE STRTL .30 INITIAL ABSTRACTION CRVNBR 87.00 CURVE NUMBER RTIMP .00 PERCENT IMPERVIOUS AREA SCS DIMENSIONLESS UNITGRAPH TLAG .17 LAG .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 UNIT HYDROGRAPH 27 END-OF-PERIOD ORDINATES 22. 68. 141. 219. 258. 260. 234. 196. 145. 105. 78. 60. 45. 33. 25. 18. 14. 10. 8. 6. 4. 3. 3. 2. 1. 1. 0. HYDROGRAPH AT STATION A-10 TOTAL RAINFALL = 4.90, TOTAL LOSS = 1.43, TOTAL EXCESS= 3.47 PEAK FLOW TIME MAXIMUM AVERAGE FLOW 6-HR 24-HR 72-HR 33.30-HR + (CFS) (HR) (CFS) + 115. 12.00 30. 9. 7. 7. (INCHES) 2.738 3.473 3.473 3.473 (AC-FT) 15. 19. 19. 19. CUMULATIVE AREA = 10 SQ MI RkR kRR RRR RRR kRR k## ### ### tfifi ### ### *f# fR* #*f ff# kk# *** *** #** i#* kkk R## #*# *** i## **f fi#* Rk* k*# #*# RkR *** R#R k * 17 KK # B-10 ` I R 20 LS 21 UD .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 SCS LOSS RATE STRTL .41 INITIAL ABSTRACTION CRVNB R 83.00 C URVE NUMBER RTIMP .00 PERCENT IMPERVI OUS AREA SCS DIMEN SIONLESS UNITGRAPH TLAG .13 LAG .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 xxx UNIT HYDROGRAPH 21 END-OF-PERIOD ORDINATES 38. 122. 242. 304. 297. 248. 175. 116. 81. 57. 39. 27. 18. 13. 9. 6. 4. 3. 2. 1. 1. HYDROGRAPH AT STATION B-10 TOTAL RAINFALL = 4.90, TOTAL LOSS = 1.82, TOTAL EXCESS= 3.08 PEAK FLOW TIME MAXIMUM AVERAGE FLOW 6-HR 24-HR 72-HR 33.30-HR + (CFS) (HR) (CFS) + 98. 12.00 25. 8. 6. 6. (INCHES) 2.453 3.084 3.084 3.084 (AC-FT) 12. 15. 15. 15. CUMULATIVE AREA = .09 SQ MI xxxxxxxxxxxxxx x x 22 KK x TOT-10 x x xxxxxxxxxxxxxx TOTAL AT HWY. 73 CULVERT 24 KO OUTPUT CONTROL VARIABLES IPRNT 3 PRINT CONTROL IPLOT 1 PLOT CONTROL QSCAL 0. HYDROGRAPH PLOT SCALE 30 LS 35 LID .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 SCS LOSS RATE STRTL .30 INITIAL ABSTRACTION CRVNBR 87.00 CURVE NUMBER RTIMP .00 PERCENT IMPERVIOU! SCS DIMENSIONLESS UNITGRAPH TLAG .17 LAG .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 .01 .01 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 'AREA .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 .01 .01 .01 .01 .01 .01 .01 .01 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 UNIT HYDROGRAPH 27 END-OF-PERIOD ORDINATES 22. 68. 141. 219. 258. 260. 234. 196. 145. 105. 78. 60. 45. 33. 25. 18. 14. 10. 8. 6. 4. 3. 3. 2. 1. 1. 0. 39 LS 40 UD .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 SCS LOSS RATE STRTL .41 INITIAL AB STRACT ION CRVNBR 83.00 C URVE NUMBER RTIMP .00 PERCENT IMPERVI OUS AREA SCS DIMENSIONLESS UNITGRAPH TLAG . 13 LAG .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 .01 .01 .01 .01 .01 .01 .01 .01 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 UNIT HYDROGRAPH 21 END-OF-PERIOD ORDINATES 38. 122. 242. 304. 297. 248. 175. 116. 81. 57. 39. 27. 18. 13. 9. 6. 4. 3. 2. 1. 1. HYDROGRAPH AT STATION B-25 TOTAL RAINFALL = 5.80, TOTAL LOSS = 1.89, TOTAL EXCESS = 3.91 PEAK FLOW TIME MAXIMUM AVERAGE FLOW - 48 BA SUBBASIN CHARACTERISTICS TAREA .10 SUBBASI N AREA PRECIPI TATION DATA 50 PB STORM 6.50 BASIN TOTAL PRECIPITATION 51 PI INCR EMENTAL PRECIPITATION PATTERN .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 4 ? Y 51 PI INCREMENTAL PRECIPITATION PATTERN .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 0 + 4 CUMULATIVE AREA = .19 SQ MI ************** * Y 64 KK A-100 " TOTAL AT DRIVEWAY CULVERT 66 KO OUTPUT CONTROL VARIABLES IPRNT 3 PRINT CONTROL IPLOT 1 PLOT CONTROL QSCAL 0. HYDROGRAPH PL OT SCALE 5 IN TIME DATA FOR INPUT TIME SERIES JXMIN 60 TIME INTERVAL IN MINUTES JXDATE 1JAN 0 STARTING DATE JXTIME 1200 STARTING TIME SUBBASIN RUNOFF DATA 67 BA SUBBASIN CHARACTERISTICS TAREA .10 SUBBASIN AREA PRECIPITATION DATA 69 PB STORM 6.90 BASIN TOTAL PRECIPITATION 70 PI INCREMEN TAL PRECIPITATION PATTERN .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 10 74 KK B-100 75 KO OUTPUT CONTROL VARIABLES IPRNT 3 PRINT CONTROL IPLOT 1 PLOT CONTROL QSCAL 0. HYDROGRAPH PLOT SCALE SUBBASIN RUNOFF DATA 76 BA SUBBASIN CHARACTERISTICS TAREA .09 SUBBASIN AREA PRECIPITATION DATA 69 PB STORM 6.90 BASIN TOTAL PRECIPITATION 70 PI INCREMENTAL PRECIPITATION PATTERN .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 w . 6 . LL r 79 KK TOT-100 TOTAL AT HWY. 73 CULVERT 81 KO OUTPUT CONTROL VARIABLES IPRNT 3 PRINT CONTROL IPLOT 1 PLOT CONTROL QSCAL 0. HYDROGRAPH PLOT SCALE *** HEC-1 ERROR 1 *** INVALID CARD IDENTIFICATION CODE OR CARD OUT OF SEQUENCE CARD NO. 83 82 HC HYDROGRAPH COMBINATION (COMP 2 NUMBER OF HYDROGRAPHS TO COMBINE HYDROGRAPH AT STATION TOT-100 PEAK FLOW TIME MAXIMUM AVERAGE FLOW 6-HR 24-HR 72-HR 33.30-HR + (CFS) (HR) (CFS) + 324. 12.00 85. 27. 19. 19. (INCHES) 4.052 5.167 5.167 5.167 (AC-FT) 42. 54. 54. 54. CUMULATIVE AREA = .19 SQ MI 1 RUNOFF SUMMARY FLOW IN CUBIC FEET PER SECOND TIME IN HOURS, AREA IN SQUARE MILES PEAK TIME OF AVERAGE FLOW FOR MAXIMUM PERIOD BASIN MAXIMUM TIME OF OPERATION STATION FLOW PEAK AREA STAGE MAX STAGE + 6-HOUR 24-HOUR 72-HOUR HYDROGRAPH AT + A-10 115. 12.00 30. 9. 7. .10 HYDROGRAPH AT + B-10 98. 12.00 25. 8. 6. .09 2 COMBINED AT + TOT-10 213. 12.00 54. 17. 12. .19 HYDROGRAPH AT + A-25 141. 12.00 37. 12. 8. .10 HYDROGRAPH AT + B-25 122. 12.00 31. 10. 7. .09 2 COMBINED AT + TOT-25 263. 12.00 68. 22. 16. .19 HYDROGRAPH AT + A-50 161. 12.00 43. 14. 10. .10 HYDROGRAPH AT + B-50 141. 12.00 36. 11. 8. .09 2 COMBINED AT + TOT-50 302. 12.00 79. 25. 18. .19 HYDROGRAPH AT STORMWATER WATER QUALITY DESIGN 0 M W NCDENR Sand Filter Calculation WALGREENS - STORE NO. 13036 CJS PROJECT NO.: 50243 ATE: 09.29.10 BY: DJM EVISED: RVW: RTF Charlotte Wilmington +ColeJenest Raleigh & Stone Land Planning + Landscape Architecture + Civil Engineering + Urban Design *Note: The Water Quality Protection Volume (WQv) is the runoff volume required when designing a BMP to treat the runoff from a 1-inch rainfall event. Rv = 0.05 + 0.009( 1 ) Rv = Volumetric Runoff Coefficient (Runoff/Rainfall) - unitless I = % Impervious WQv = (1.0*Rv*A)/12 WQv = Water Quality Volume based on the 1-inch, 6-hour storm event (Ac. Ft.) WQv (Adj) = Adjusted Water Quality Volume = 0.75*WQv A = Total Drainage Area (ac) ("Simple Method" - Schueler, 1987) .T. = 80 Percent Impervious 1.99 Acres Rv = 0.77 Answer WQv = 0.128 Ac. Ft. 5562 Cubic Feet Required WQv (Adj) = 4172 Cubic Feet IIMAXIMUM HEAD CALCULATIONS FOR FILTER hmaxfifter = WQv (Adj) / [As + Af], 2'- 6' hmaxfllter = WQv Ad' As + A ft ft-3 ft-2 2.0 4172 2086 3.0 4172 1391 4.0 4172 1043 5.0 4172 834 6.0 4172 695 IISURFACE AREA CALCULATIONS As = Sedimentation Basin Surface Area = [240*Rv*Ad]*Rd Af = Filter Bed Surface Area = (WQv)(df)/[(k)(hf+df)(tf)] As (min.) = 368 Sq. Ft. As (actual) = 560 Sq. Ft. Coefficient of permeability, k = 3.5 ft/day Height of water (ha) must be max 3:1 side slope and max 12" depth, average head Drain time (tf) must be within 40 hours (1.66 days) Filter bed depth (df) must be 1.5ft minimum Fill in Values: k = 3.5 ft./day df = 2 feet he = 2 feet tf = 1.66 days Answer: Af (min.) = 479 Square Feet Required For Sand Filter Bed Af (actual) = 560 Check [As + Af] * hmaxfllter >= WQv (Adj) [As + At] * hmaxfllter = 4480 OK WQv (Adj) = 4172 150 Fayetteville Street, Suite 95o Raleigh, NC 27601 ;_919 719 1800=,919 719 1819 www.colejeneststone.com Charlotte Raleigh Wilmington September 28, 2010 Mr. Alan D. Johnson ColeJenest North Carolina Department of Environment and Natural Resources Division of Water Quality & Stone 610 East Center Avenue, Suite :301 Mooresville, North Carolina 28115 Shaping the Environment Re: 50243 - Walgreens Store No. 13036 Realizing the Possibilities Dear Alan: The following is offered in response to your plan review comments for the referenced project, dated September 10, 2010. Comment Post construction stormwater measures are required for the entire site. Response The project developer, Morgan Property Group, will only purchase and develop the 2.4- acre tract for the Walgreens. For purposes of the 401 Water Quality Certification, this is the project area. The adjacent properties to the north and west remain under separate ownership and there are no current plans for development. Morgan Property Group maintains no interest in the adjacent parcels. The access road to the north, behind the Land Planning Walgreens, is being constructed under a joint agreement between the three individual + property owners, Lincoln County, and NCDOT. The road will not be owned by Morgan or Landscape Architecture Walgreens; they will simply have access to it via easement agreement. The Corps of Engineers has modified the General Permit Verification to reflect the correct project area Civil Engineering of 2.44 acres. Drainage inlets D1, D2, D3, and B2 collect offsite drainage only, which is not subject to treatment regulations. Drainage inlets C1, C2, and C3 are being installed Urban Design as blind inlets for future use by the ac..-:jacent property developer such that future cutting of the pavement can be avoided. Under the current plan, no drainage will be collected in these inlets. Comment The proposed culvert does not line up with the stream. Response The alignment of the 72-inch culvert has been adjusted to better align with the existing channel. Comment Given the size of the culvert and the :rize of the stream, flood plain benches are required immediately up and downstream of .'he culvert. Response The culvert realignment working in conjunction with the energy dissipation measures which have been incorporated into the plan should alleviate concerns with bank erosion immediately up and downstream of the culvert. The overbank areas will be stabilized with willow cuttings and other plant materials as part of the proposed buffer enhancement plan, achieving the effect of a constructed flood plain bench. Comment Check dam is shown in :he stream on the downstream end of the culvert. If the coffer dam is constructed property, this should not be required. Response The referenced check dam has bc;en eliminated and a revised detail for the coffer dam and temporary bypass pump has been incorporated into the plan. Areas of temporary II i ?i I ?i 'w I I I? i 50243 - Walgreens Stare No. 113036 September 23, 2010 Page 2 ?i stream impact above and below the culvert have been accounted for in the 145 LF of permitted stream impact. Comment The grass swale from the sand filter is shown constructed to the top of bank of the stream. Can the swale be terminated prior to entering the buffer? Response The elevations of the drainage system are such that it is not possible to discharge the sand filter at the upland side of the buffer. The proposed discharge channel enters the existing stream at the existing streari invert elevation, immediately upstream of the exiting culvert at NC73, and within an area of the stream that has already has rip rap stabilization in place. The plan specifies that the discharge channel be stabilized with a permanent erosion control fabric (worth American Green C350). A plunge pool type energy dissipation device has been added at the end of the discharge channel to further limit the potential for eroaive impact at the stream. Comment Pump around of the stream should he discharged through a well buffered area prior to entering the stream or the flow pimped through a silt/filter bag and released. Response A revised detail for the temporary bypass pump operation that includes a silt bag on the pump discharge line has been incorporated into the plan. Comment During discussions at the Site it was stated that the culvert is at a 5% grade which may cause scouring of the stream without a dissipation pad. Response The proposed culvert slope is dictated by the existing stream invert elevations at the culvert entrance and exit. The invert of the culvert is specified to be buried 1 ft below the existing base of the channel in accordance with permit requirements. A plunge pool constructed of Class II rip rap material has been added below the culvert discharge to provide energy dissipation. Two copies of the revised plans, supporting calculations, and permit application are attached for your review. Please contact our office for further information, as required. Best regards, COLEJENEST & STONE, P.A. R. Todd Fisher, PE Senior Project Manager reg cc: Mr. Trey Morgan - MPG Mr. Mark Romulus - LQV Mr. Michael S. Cole, Sr., RLA, LEED AP - CJS P:\SDSKPROJ\50243\_ Correspondences\2010\Ietter\092.'1 Johnson, A., Comment Response.doc Appendix A Pre Construction Notification 1@@@OW@ I OCT 1 2 2010 !ADS AN STOR.Q4VATE BRANCH LandQuest Ventures, LLC Environmental S e r v i c e s o/a?oFrywja rE?9oc O Niii? Y Office Use Only: Corps action ID no. DWQ project no. Form Version 1.3 Dec 10 2008 Pre-Construction Notification PCN Form A. Applicant Information 1. Processing 1 a. Type(s) of approval sought from the Corps: ®Section 404 Permit El Section 10 Permit 1b. Specify Nationwide Permit (NWP) number: 39 or General Permit (GP) number: 1c. Has the NWP or GP number been verified by the Corps? ® Yes ? No 1 d. Type(s) of approval sought from the DWQ (check all that apply): ® 401 Water Quality Certification - Regular ? Non-404 Jurisdictional General Permit ? 401 Water Quality Certification - Express ? Riparian Buffer Authorization 1 e. Is this notification solely for the record because written approval is not required? For the record only for DWQ 401 Certification: ? Yes ® No For the record only for Corps Permit: ® Yes ? No 1f. Is payment into a mitigation bank or in-lieu fee program proposed for mitigation of impacts? If so, attach the acceptance letter from mitigation bank or in-lieu fee program. ? Yes ® No 1 g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h below. ? Yes ® No 1h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ? Yes ® No 2. Project Information 2a. Name of project: Proposed Walgreens Store #13036 2b. County: Lincoln 2c. Nearest municipality / town: Denver 2d. Subdivision name: N/A 2e. NCDOT only, T.I.P. or state project no: N/A 3. Owner Information 3a. Name(s) on Recorded Deed: Mr. Tony Jones 3b. Deed Book and Page No. 2066-76 Plat Book 14-387 3c. Responsible Party (for LLC if applicable): Mr. Trey Morgan, Denver I Realty, LLC 3d. Street address: 13024 Ballantyne Corporate Place, Suite 250 3e. City, state, zip: Charlotte, NC 28277 3f. Telephone no.: 704-909-4500 3g. Fax no.: 704-909-4501 3h. Email address: tmorgan@morganpg.com Page I of 11 PCN Form - Version 1.3 December 10, 2008 Version 4. Applicant Information (if different from owner) 4a. Applicant is: ? Agent ® Other, specify: 4b. Name: Mr. Trey Morgan 4c. Business name (if applicable): Denver I Realty, LLC 4d. Street address: 13024 Ballantyne Corporate Place, Suite 250 4e. City, state, zip: Charlotte, NC 28277 4f. Telephone no.: 704-909-4500 4g. Fax no.: 704-909-4501 4h. Email address: tmorgan@morganpg.com 5. Agent/Consultant Information (if applicable) 5a. Name: Mr. Mark S. Romulus 5b. Business name (if applicable): LandQuest ventures, LLC 5c. Street address: 300 Holmes Boulevard 5d. City, state, zip: Yorktown, VA 23692 5e. Telephone no.: 757-268-9480 5f. Fax no.: N/A 5g. Email address: mark.romulus@cox.net Page 2 of 11 PCN Form - Version 1.3 December 10, 2008 Version B. Project Information and Prior Project History 1. Property Identification 1a. Property identification no. (tax PIN or parcel ID): 87827 1b. Site coordinates (in decimal degrees): Latitude: 35.450 Longitude: - 80.988 (DD.DDDDDD) (-DD.DDDDDD) 1 c. Property size: 2.44 acres 2. Surface Waters 2a. Name of nearest body of water (stream, river, etc.) to Forney Creek proposed project: 2b. Water Quality Classification of nearest receiving water: C 2c. River basin: Catawba 3. Project Description 3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application: Undeveloped secondary-growth woodland 3b. List the total estimated acreage of all existing wetlands on the property: 0.014 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 290 3d. Explain the purpose of the proposed project: Develop a Walgreens pharmacy 3e. Describe the overall project in detail, including the type of equipment to be used: Project will require the use of heavy construction equipment including: bulldozers, front-end loaders, compaction rollers, cement trucks, and haulers for clearing, soil cut and fill, soil compaction, cement laying, and utility trenching. Proposed road will be constructed from Business 16 and later connected to proposed parking lot surrounding the pharmacy building. Foundation will need to be constructed to support pharmacy structure. Some upland trees outside of the streamside buffer and a small portion of the existing onsite stream will be impacted. 4. Jurisdictional Determinations 4a. Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property / ® Yes ? No ? Unknown project (including all prior phases) in the past? Comments: 4b. If the Corps made the jurisdictional determination, what type ® Preliminary ? Final of determination was made? 4c. If yes, who delineated the jurisdictional areas? Agency/Consultant Company: LandQuest Ventures, LLC Name (if known): Mark S. Romulus Other: 4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation. July 9, 2010 5. Project History 5a. Have permits or certifications been requested or obtained for ®Yes ? No ? Unknown this project (including all prior phases) in the past? 5b. If yes, explain in detail according to "help file" instructions. 2005, 2010 Page 3 of 11 PCN Form - Version 1.3 December 10, 2008 Version 6. Future Project Plans 6a. Is this a phased project? ? Yes ® No 6b. If yes, explain. Page 4 of 11 PCN Form - Version 1.3 December 10, 2008 Version C. Proposed Impacts Inventory 1. Impacts Summary la. Which sections were completed below for your project (check all that apply): ® Wetlands ® Streams - tributaries ® Buffers ? Open Waters ? Pond Construction 2. Wetland Impacts If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted. 2a. 2b. 2c. 2d. 2e. 2f. Wetland impact number - Type of impact Type of wetland Forested Type of jurisdiction (Corps - 404, 10 Area of impact Permanent (P) or (if known) DWQ - non-404, other) (acres) Temporary W1 ®P ? T Pipe culvert - road PEM ® Yes ? No ® Corps ? DWQ 0.0005 crossing W2 ®P ? T Pipe culvert-road PEM ® Yes ? N ® Corps ? DWQ 0.0075 crossing o ? Yes ? Corps W3 ? P ? T ? No ? DWQ ? Yes ? Corps W4 ? P CJ T ? No ? DWQ ? Yes ? Corps W5 ? P [:1 T ? No ? DWQ ? Yes ? Corps W6 ? P [] T ? No ? DWQ 2g. Total wetland impacts 0.008 2h. Comments: 3. Stream Impacts If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this question for all stream sites impacted. 3d. 3e. 3f. 39 3a. 3b. 3c. Stream impact Type of impact Stream name Perennial Type of jurisdiction Average Impact length t ream number - (PER) or (Corps - 404, 10 s width (linear Permanent (P) or intermittent DWQ - non-404, (INT)? other) (feet) feet) Temporary (T) S1 ®P ? T Pipe culvert - road crossing UT - Forney Creek ® PER ® INT ® Corps ? DWQ 3.5 145 ? PER ? Corps S2 ? P ? T ? INT ? DWQ ? PER ? Corps S3 ? P ? T ? INT ? DWQ ? PER ? Corps S4 ? P ? T ? INT 0 DWQ ? PER ? Corps S5 ? PEI T ? INT ? DWQ ? PER ? Corps S6 ? P ? T ? INT ? DWQ 3h. Total stream and tributary impacts 145 % rnmmantc• Page 5 of 11 PCN Form -Version 1.3 December 10, 2008 Version 4. Open Water Impacts If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of the U.S. then individually list all open water impacts below. 4a. 4b. 4c. 4d. 4e. Open water Name of waterbody impact number - (if applicable) Type of impact Waterbody type Area of impact (acres) Permanent (P) or Temporary 01 ?POT 02 ?POT 03 ?P? 04 ?POT 4f. Total open water impacts 4g. Comments: N/A 5. Pond or Lake Construction If and or lake construction proposed, then complete the chart below. 5a. 5b. 5c. 5d 5e. Wetland Impacts (acres) Stream Impacts (feet) Upland Pond ID Proposed use or purpose (acres) number of pond Flooded Filled Excavated Flooded Filled Excavated Flooded P1 NIA P2 5L Total 5g. Comments: 5h. Is a dam high hazard permit required? ? Yes ®No If yes, permit ID no: 5i. Expected pond surface area (acres): N/A 5j. Size of pond watershed (acres): NIA 5k. Method of construction: N/A 6. Buffer Impacts (for DWQ) If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts below. If an impacts require mitigation, then you MUST fill out Section D of this form. 6a. ? Neuse ? Tar-Pamlico ? Other: Project is in which protected basin? ® Catawba ? Randleman 6b. 6c. 6d. 6e. 6f. 6g. Buffer impact number - Reason Buffer Zone 1 impact Zone 2 impact Permanent (P) or for Stream name mitigation (square feet) (square feet) Temporary impact required? B1 ? P ®T Road crossing UT - Forney Creek ? Yes ® No 7,178 2,416 B2 ? P ? T ? Yes ? No B3 ? P [] T ? Yes ? No 6h. Total buffer impacts 7,178 2,416 6i. Comments: Vegetation enhancements will be made to the existing riparian buffer per the Lincoln County variance Page 6 of 11 PCN Form -Version 1.3 December 10, 2008 Version requirement. See enclosed. D. Impact Justification and Mitigation 1. Avoidance and Minimization 1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project. Road width reduced from 40 feet to 29 feet 1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. See above. 2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State 2a. Does the project require Compensatory Mitigation for impacts to Waters of the U.S. or Waters of the State? ? Yes ® No 2b. If yes, mitigation is required by (check all that apply): ? DWQ ? Corps 2c. If yes, which mitigation option will be used for this project? ? Mitigation bank ? Payment to in-lieu fee program ? Permittee Responsible Mitigation 3. Complete If Using a Mitigation Bank 3a. Name of Mitigation Bank: 3b. Credits Purchased (attach receipt and letter) Type Quantity 3c. Comments: 4. Complete if Making a Payment to In-lieu Fee Program 4a. Approval letter from in-lieu fee program is attached. ? Yes 4b. Stream mitigation requested: linear feet 4c. If using stream mitigation, stream temperature: ? warm ? cool ?cold 4d. Buffer mitigation requested (DWQ only): square feet 4e. Riparian wetland mitigation requested: acres 4f. Non-riparian wetland mitigation requested: acres 4g. Coastal (tidal) wetland mitigation requested: acres 4h. Comments: 5. Complete If Using a Permittee Responsible Mitigation Plan 5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan. Page 7 of 11 PCN Form - Version 1.3 December 10, 2008 Version 6. Buffer Mitigation (State Regulated Riparian Buffer Rules) - required by DWQ 6a. Will the project result in an impact within a protected riparian buffer that requires buffer mitigation? ? Yes ® No 6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the amount of mitigation required. Zone 6c. Reason for impact 6d. Total impact (square feet) Multiplier 6e. Required mitigation (square feet) Zone 1 3 (2 for Catawba) Zone 2 1.5 6f. Total buffer mitigation required: 6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank, permittee responsible riparian buffer restoration, payment into an approved in-lieu fee fund). 6h. Comments: Page 8of11 PCN Form - Version 1.3 December 10, 2008 Version E. Stormwater Management and Diffuse Flow Plan (required by DWQ) 1. Diffuse Flow Plan la. Does the project include or is it adjacent to protected riparian buffers identified ? Yes ® No within one of the NC Riparian Buffer Protection Rules? 1b. If yes, then is a diffuse flow plan included? If no, explain why. ? Yes No Comments: 2. Stormwater Management Plan 2a. What is the overall percent imperviousness of this project? 60% 2b. Does this project require a Stormwater Management Plan? ® Yes ? No 2c. If this project DOES NOT require a Stormwater Management Plan, explain why: 2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan: This proposed project will incorporate a sand filter to capture and treat anticipasted stormwater runoff from the 1-inch rainfall. The sand filter will be designed in accordance with the NCDENR Stormwater Practices Manual. ? Certified Local Government 2e. Who will be responsible for the review of the Stormwater Management Plan? ? DWQ Stormwater Program ® DWQ 401 Unit 3. Certified Local Government Stormwater Review 3a. In which local government's jurisdiction is this project? Lincoln County ? Phase 11 3b. Which of the following locally-implemented stormwater management programs ? NSW ? USMP apply (check all that apply): ? Water Supply Watershed ? Other. None 3c. Has the approved Stormwater Management Plan with proof of approval been ? Yes ® No attached? 4. DWQ Stormwater Program Review ? Coastal counties ? HQW 4a. Which of the following state-implemented stormwater management programs apply ? ORW (check all that apply): ? Session Law 2006-246 ? Other: None 4b. Has the approved Stormwater Management Plan with proof of approval been ? Yes No attached? 5. DWQ 401 Unit Stormwater Review 5a. Does the Stormwater Management Plan meet the appropriate requirements? ® Yes ? No 5b. Have all of the 401 Unit submittal requirements been met? ® Yes ? No Page 9 of 11 PCN Form - Version 1.3 December 10, 2008 Version F. Supplementary Information 1. Environmental Documentation (DWQ Requirement) I a. Does the project involve an expenditure of public (federal/state/local) funds or the Yes ® No use of public (federal/state) land? 1 b. If you answered "yes" to the above, does the project require preparation of an environmental document pursuant to the requirements of the National or State ? Yes ? No (North Carolina) Environmental Policy Act (NEPA/SEPA)? 1c. If you answered "yes" to the above, has the document review been finalized by the State Clearing House? (If so, attach a copy of the NEPA or $EPA final approval letter.) ? Yes ? No Comments: 2. Violations (DWQ Requirement) 2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards, ? Yes ® No or Riparian Buffer Rules (15A NCAC 2B .0200)? 2b. Is this an after-the-fact permit application? ? Yes No 2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s): 3. Cumulative Impacts (DWQ Requirement) 3a. Will this project (based on past and reasonably anticipated future impacts) result in El Yes ® No additional development, which could impact nearby downstream water quality? 3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent DWQ policy. If you answered "no," provide a short narrative description. 4. Sewage Disposal (DWQ Requirement) 4a. Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. The proposed project will connect to the existing sanitary sewer system operated by Lincoln County Department of Public Works. The wastewater is treated at the Middle Forney Creek Wastewater Treatment Facility. Page 10 of 11 PCN Form - Version 1.3 December 10, 2008 Version IL ? tbpeghrr ? OeetOnebrd t/tlttcd tit (CnepM 6e. VYlg tap?jee!owsinofrowan wmwth Udw*p soodu4or tltt#eEs [ZYet t 6a. ft w v w dwu *od woo* WRO emwqffadspeom wgffad> Act *vow ? Yep Dun So. i?Yw<.i1diC?1?'?elJ?iFY1tl?Ff?ldGfNceXa?ttmreootd,?ed: 0 ammo QM AV*A* it aimm t did yoU tale to d$ttt*w O NOW you so *V dd ? SPM?ft40r ly"FOOd COW blebjo k East Fittr l11A?1ht ?i0rpe ? 80. 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FE11AR POW Mm 870144 4402 Agent ApprmotJAgent a Pdnbea Name eiEVSria wi+?bt?t+anq? 6.1044 bye page it of 11 PGN Form - Venom 11 December 10. 2008 Vetsloh Appendix B Agent Authorization LandQuest Ventures, LLC Environmental S e r v i c e s L MOM" 06/09/2029 08:25 2044831600 MELANIE JONES PAGE 01 SAMPLE AGENT AUTHORIZA'T'ION I (W PROPERTY LEGAL nESCMPI WN: 1.01' 40. PLAN N0.._ PARCEL ID. STREET AWREM: W W C: IV C Please l": Property Owner. r` t ?e rt C. y --- ---- --T.- The ?+0^?. ri9t?ered property o+Nners of the abwr noted (Ca+Melor / Aom t) (Nom or MtKm !a act on my behalf and talm W actions neoessary fix ttfe promor 0* pv"* or aeifteiion and any and al st mdwd and speclM con Prowty Owners Ad*m (if dlI%ent dlwen property above): ._..1415 kiluye Qrefefy,4 To, &yj ill, It Teiaphone: 110 4 -- ?z -17- Z- 3 We hereby certify tht above WfonroWn submItted in this best of our knowledge. 7827 , do hereby autllorlne firm) asumce and aooeptance of om allafied. I. AV47- JA IS tnx and accurate W the .r Authorized Signature - - - ^ - Auft razed Sk Date: Date: ---- U.S. ARMY CORPS OF ENGINEERS WILMINGTON DISTRICT Action ID. SAW-2010-00882 County: Lincoln USGS Quad: Lowesville GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION Property Owner / Authorized Agent: Denver I Realty, LLC, Attn: Trey Morgan Address: 14120 Ballantyne Corporate Place, Suite 460 Charlotte, NC 28277 Telephone No.: Size and location of property (water body, road name/number, town, etc.): Walgreens Store #13036 located on a 2.44 acre tract in the NW quadrant of NC 16 and NC 73, near Catawba Springs Description of projects area and activity: This permit authorizes impacts to 145 LF of a UT-Forney Creek and 0.006 acre of wetlands in association with construction of a road crossing to serve a new Walgreens store. Applicable Law: ® Section 404 (Clean Water Act, 33 USC 1344) ? Section 10 (Rivers and Harbors Act, 33 USC 403) Authorization: Regional General Permit Number: Nationwide Permit Number: 39 Your work is authorized by the above referenced permit provided it is accomplished in strict accordance with the attached conditions and your submitted plans. Any violation of the attached conditions or deviation from your submitted plans may subject the permittee to a stop work order, a restoration order and/or appropriate legal action. This verification is valid until the NWP is modified, reissued, or revoked. All of the existing NWPs arc scheduled to be modified, reissued, or revoked prior to March 18, 2012. It is incumbent upon you to remain informed of changes to the NWPs. We will issue a public notice when the NWPs are reissued. Furthermore, if you commence or are under contract to commence this activity before the date that the relevant nationwide permit is modified or revoked, you will have twelve (12) months from the date of the modification or revocation of the NWP to complete the activity under the present terms and conditions of this nationwide permit. Activities subject to Section 404 (as indicated above) may also require an individual Section 401 Water Quality Certification. You should contact the NC Division of Water Quality (telephone (919) 733-1786) to determine Section 401 requirements. For activities occurring within the twenty coastal counties subject to regulation under the Coastal Area Management Act (CAMA), prior to beginning work you must contact the N.C. Division of Coastal Management. This Department of the Army verification does not relieve the permittee of the responsibility to obtain any other required Federal, State or local approvals/permits. If there are any questions regarding this verification, any of the conditions of the Permit, or the Corps of Engineers regulatory program, please contact Steve Chapin at 828-271-7980. Corps Regulatory Official Steve Chapin Date: July 9, 2010 Expiration Date of Verification: March 18, 2012 The Wilmington District is committed to providing the highest level of support to the >?j 1?"Cye we continue to do so, please complete the attached customer Satisfaction Survey or visil Now C 8 http://www.saw.usace.army.mil/WETLANDS/index.html to complete the survey on tne. SEP 2 0 2010 pm. No., Determination of Jurisdiction: A. ? Based on preliminary information, there appear to be waters of the US including wetlands within the above described project area. This preliminary determination is not an appealable action under the Regulatory Program Administrative Appeal Process ( Reference 33 CFR Part 331). B. ? There are Navigable Waters of the United States within the above described project area subject to the permit requirements of Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act. Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. C. ® There are waters of the US and/or wetlands within the above described project area subject to the permit requirements of Section 404 of the Clean Water Act (CWA)(33 USC § 1344). Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. D. ? The jurisdictional areas within the above described project area have been identified under a previous action. Please reference jurisdictional determination issued _ Action ID Basis of Jurisdictional Determination: The site contains wetlands as determined by the USACE 1987 Wetland Delineation Manual and is adjacent to a stream channel that exhibits indicators of ordinary high water marks. The stream channel on the property is an unnamed tributary to Forney Creek which flows into the Catawba River and ultimately flows to the Atlantic Ocean through the Forney Creek>Dutchman's Creek>Catawba River system which is a Section 10 navigable-in-fact waterway at Lake Wylie. Appeals Information: (This information does not apply to preliminary determinations as indicated by paragraph A. above). Attached to this verification is an approved jurisdictional determination. If you are not in agreement with that approved jurisdictional determination, you can make an administrative appeal under 33 CFR 331. Enclosed you will find a Notification of Appeal Process (NAP) fact sheet and request for appeal (RFA) form. If you request to appeal this determination you must submit a completed RFA form to the following address: District Engineer, Wilmington Regulatory Program Attn: Steve Chapin, Project Manager 151 Patton Avenue, Room 208 Asheville, North Carolina 28801 In order for an RFA to be accepted by the Corps, the Corps must determine that it is complete, that it meets the criteria for appeal under 33 CFR part 331.5, and that it has been received by the Division Office within 60 days of the date of the NAP. Should you decide to submit an RFA form, it must be received at the above address within 60 days from the Issue Date below. **It is not necessary to submit an RFA form to the Division Office if you do not object to the determination in this correspondence.** Corps Regulatory Official: Steve Chapin Issue Date: July 9, 2010 Expiration Date: Five years from Issue Date SURVEY PLATS, FIELD SKETCH, WETLAND DELINEATION FORMS, PROJECT PLANS, ETC., MUST BE ATTACHED TO THE FILE COPY OF THIS FORM, IF REQUIRED OR AVAILABLE. Copy Furnished: LandQuest Ventures, LLC