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HomeMy WebLinkAbout20170026 Ver 1_401 Application_20170117AECOMAECOM Technical Services of North Caroliina, Inc. 919 461 1100 tel 1600 Perimeter Park Drive 919 461 1415 fax Suite 400 Morrisville, NC 27560 www.aecom*com December 23, 2016 L5 @ 0 Ms. Karen Higgins .IAlyD 0 3 2017 ! Wetlands and Buffer Permitting Unit NC Division of Water Resources 40E& -B AT17 RES 0 1617 Mail Service Center UFF R p E5 Raleigh, NC 27699-1617 Subject: City of Raleigh Public Utilities Department Stadium Drive Sanitary Sewer Replacement Dear Ms. Higgins.- Enclosed iggins:Enclosed are five copies of a Pre -Construction Notification (PCN) Permit Application Package for the City of Raleigh Stadium Drive Sanitary Sewer Replacement project including: Attachment A (project description), Exhibits (proposed work plan and details), and Attachments 1-3 (reference materials by others). Also enclosed is the $240.00 application fee. The project will entail replacement of approximately 40 linear feet of PVC pipe, which is damaged beneath the streambed, with ductile iron pipe. Copies of this application have been submitted to the Army Corps of Engineers for coverage under the corresponding Natiowide Permit 12. Additionally, this work is being coordinated with the North Carolina Division of Mitigation Services and the North Carolina Department of Transportation. Please contact me with any questions regarding this permit application. Sincerely, AECOM Technical Services of North Carolina, Inc. 7,�5, 'ell Mary T. Brice, P.E. LEED AP Senior Environmental Engineer Attachments O�O� W A TF 9OG Office Use Only: 2 0 1 7 0 0 2 6 Corps action ID no. DWQ project no. Form Version 1.4 January 2009 Page 1 of 10 PCN Form — Version 1.4 January 2009 Pre -Construction Notification (PCN) Form A. Applicant Information 1. Processing 1 a. Type(s) of approval sought from the Corps: ❑X Section 4 ermit ❑ Section 10 Permit 1 b. Specify Nationwide Permit (NWP) number: 12 or General Permit (GP) number: 1c. Has the NWP or GP number been verified by the Corps? ❑ Yes Efl No 1 d. Type(s) of approval sought from the DWQ (check all that apply): X❑ 401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit ❑ 401 Water Quality Certification — ExpressX❑ 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 ❑X No For the record only for Corps Permit: ❑ Yes ❑X 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 ❑X No 1 g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h below. ❑ Yes ❑X No 1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ❑ Yes No 2. Project Information 2a. Name of project: Stadium Drive Sanitary Sewer Repair 2b. County: Wake 2c. Nearest municipality / town: Raleigh 2d. 2e. Subdivision name: NCDOT only, T.I.P. or state project no: 3. Owner Information lUU1 0 3 3a. Name(s) on Recorded Deed: 3b. Deed Book and Page No. -WATER R E RES US 01 & BUF 3c. Responsible Party (for LLC if applicable): City of Raleigh Public Utility Department 3d. Street address: 222 W. Hargett St. 3e. City, state, zip: Raleigh, NC, 27601 3f. Telephone no.: 919-996-4540 3g. Fax no.: 919-996-1866 3h. Email address: Page 1 of 10 PCN Form — Version 1.4 January 2009 4. Applicant Information (if different from owner) 4a. Applicant is: ❑ Agent ❑ Other, specify: 4b. Name: 4c. Business name (if applicable): 4d. Street address: 4e. City, state, zip: 4f. Telephone no.: 4g. Fax no.: 4h. Email address: 5. Agent/Consultant Information (if applicable) 5a. Name: Mary T. Brice 5b. Business name (if applicable): AECOM Technical Services of North Carolina, Inc. 5c. Street address: 1600 Perimeter Park Dr. Suite 400 5d. City, state, zip: Morrisville, NC, 27560 5e. Telephone no.: 919-461-1358 5f. Fax no.: 919-461-1415 5g. Email address: mary.brice@aecom.com Page 2 of 10 B. Project Information and Prior Project History 1. Property Identification 1a. Property identification no. (tax PIN or parcel ID): 1b. Site coordinates (in decimal degrees): Latitude: 35.98 Longitude: -78.52 1c. Property size: acres 2. Surface Waters 2a. Name of nearest body of water to proposed project: Richland Creek 2b. Water Quality Classification of nearest receiving water: C, NSW 2c. River basin: Neuse River Basin 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: 3b. List the total estimated acreage of all existing wetlands on the property: 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 3d. Explain the purpose of the proposed project: This project is to facilitate an emergency repair of the City of Raleigh's Public Utilities Departments line adjacent to the south side of the bridge. 3e. Describe the overall project in detail, including the type of equipment to be used: See Attachment A. 4. Jurisdictional Determinations 4a. Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property / ro'ect(including all priorphases) in thepast? ❑ Yes ❑ No ❑X Unknown Comments: 4b. If the Corps made the jurisdictional determination, what type of determination was made? ❑ Preliminary ❑ Final 4c. If yes, who delineated the jurisdictional areas? Name (if known): Agency/Consultant Company: Other: 4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation. 6. Project History 5a. Have permits or certifications been requested or obtained for this project (including all prior phases) in the past? ❑ Yes ❑x No ❑ Unknown 5b. If yes, explain in detail according to "help file" instructions. 6. Future Project Plans 6a. Is this a phased project? ❑ Yes Z No 6b. If yes, explain. Page 3 of 10 PCN Form — Version 1.4 January 2009 C. Proposed Impacts Inventory 1. Impacts Summary 1 a. Which sections were completed below for your project (check all that apply): ❑ Wetlands ❑X Streams — tributaries ❑X 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. Wetland impact number Permanent (P) or Temporary T 2b. Type of impact 2c. Type of wetland 2d. Forested 2e. Type of jurisdiction Corps (404,10) or DWQ (401, other) 2f. Area of impact (acres) W1 - Choose one Choose one Yes/No - W2 - Choose one Choose one Yes/No - W3 - Choose one Choose one Yes/No - W4 - Choose one Choose one Yes/No - W5 - Choose one Choose one Yes/No - W6 - Choose one Choose one Yes/No 2g. Total Wetland Impacts: 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. 3a. Stream impact number Permanent (P) or Temporary (T) 3b. Type of impact 3c. Stream name 3d. Perennial (PER) or intermittent (INT)? 3e. Type of jurisdiction 3f. Average stream width (feet) 3g. Impact length (linear feet) S1 T Excavation Richland Creek PER Corps 20 115 S2 Choose one - S3 - Choose one - S4 - Choose one - - S5 - Choose one - S6 - Choose one - 3h. Total stream and tributary impacts 115 3i. Comments: Page 4 of 10 PCN Form — Version 1.4 January 2009 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 indivi ually list all open water impacts below. 4a. Open water impact number Permanent (P) or Temporary T 4b. Name of waterbody (if applicable) 4c. Type of impact 4d. Waterbody type 4e. Area of impact (acres) 01 Choose one Choose 02 - Choose one Choose 03 - Choose one Choose 04 - Choose one Choose 4f. Total open water impacts 4g. Comments: 5. Pond or Lake Construction If pond or lake construction proposed, the complete the chart below. 5a. Pond ID number 5b. Proposed use or purpose of pond 5c. Wetland Impacts (acres) 5d. Stream Impacts (feet) 5e. Upland (acres) Flooded Filled Excavated Flooded Filled Excavated Pi Choose one P2 Choose one 5f. Total: 5g. Comments: 5h. Is a dam high hazard permit required? ❑ Yes ❑ No If yes, permit ID no: 5i. Expected pond surface area (acres): 5j. Size of pond watershed (acres): 5k. Method of construction: 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 any impacts require mitigation, then you MUST fill out Section D of this form. 6a. Project is in which protected basin? ❑ Neuse ❑ Tar -Pamlico ❑ Catawba ❑ Randleman ❑ Other: 6b. Buffer Impact number — Permanent (P) or Temporary T 6c. Reason for impact 6d. Stream name 6e. Buffer mitigation required? 6f. Zone 1 impact (square feet) 6g. Zone 2 impact (square feet 131 T Sewer Replacement Richland Creek No 1,930 1,300 B2 - Yes/No B3 - Yes/No B4 - Yes/No B5 - Yes/No B6 - Yes/No 6h. Total Buffer Impacts: 1,930 1,300 6i. Comments: Page 5 of 10 D. Impact Justification and Mitigation 1. Avoidance and Minimization 1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project. Stream disturbance will be the minimum necessary to allow for access to project site. Stream will be restored to its original contours upon completion of the project. 1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. Work areas will be confined to the minimum extent necessary to perform the work. Disturbed areas will be perpendicular to the buffer to the extent possible. Erosion control devices and measures will be installed prior to construction and work will be scheduled during a dry period when streamflow is low. 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? ❑ YesX❑ 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: Choose one Type: Choose one Type: Choose one Quantity: Quantity: 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: Choose one 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: S. 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 6 of 10 PCN Form — Version 1.4 January 2009 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 L] Yes ❑X No buffer mitigation? 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. 6c. 6d. 6e. Zone Reason for impact Total impact Multiplier Required mitigation (square feet) (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 7 of 10 E. Stormwater Management and Diffuse Flow Plan (required by DWQ) 1. Diffuse Flow Plan 1a. Does the project include or is it adjacent to protected riparian buffers identified XQ 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. This linear project at a stream crossing will not require a diffuse flow plan. ❑ Yes ❑X No 2. Stormwater Management Plan 2a. What is the overall percent imperviousness of this project? 0 2b. Does this project require a Stormwater Management Plan? ❑ YesX❑ No 2c. If this project DOES NOT require a Stormwater Management Plan, explain why: Project does not result in a point discharge or creation of impervious surface. 2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan: 2e. Who will be responsible for the review of the Stormwater Management Plan? 3. Certified Local Government Stormwater Review 3a. In which localgovernment's jurisdiction is thisproject? ❑ Phase II ❑ NSW 3b. Which of the following locally -implemented stormwater management programs ❑ USMP apply (check all that apply): ❑ Water Supply Watershed ❑X Other: Not required. 3c. Has the approved Stormwater Management Plan with proof of approval been ❑ Yes ❑ No attached? 4. DWQ Stormwater Program Review El Coastal counties ❑ HQW 4a. Which of the following state -implemented stormwater management programs apply ❑ ORW (check all that apply): ❑Session Law 2006-246 X❑Other: Not required. 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 8 of 10 PCN Form — Version 1.4 January 2009 F. Supplementary Information 1. Environmental Documentation (DWQ Requirement) 1a. Does the project involve an expenditure of public (federal/state/local) funds or the ❑X 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 SEPA final approval ❑ Yes ❑ No letter.) 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 ❑X No or Riparian Buffer Rules (15A NCAC 2B .0200)? 2b. Is this an after -the -fact permit application? ❑ Yes ❑X 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 ❑ Yes ❑X 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. Project will generate no wastewater. Page 9 of 10 PCN Form — Version 1.4 January 2009 5. Endangered Species and Designated Critical Habitat (Corps Requirement) 5a. Will this project occur in or near an area with federally protected species or Yes ❑ No habitat? 5b. Have you checked with the USFWS concerning Endangered Species Act ❑ Yes ❑X No impacts? 5c. If yes, indicate the USFWS Field Office you have contacted. - 5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? 6. Essential Fish Habitat (Corps Requirement) 6a. Will this'project occur in or near an area designated as essential fish habitat? ❑ Yes ❑ No 6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat? 7. Historic or Prehistoric Cultural Resources (Corps Requirement) 7a. Will this project occur in or near an area that the state, federal or tribal governments have designated as having historic or cultural preservation ❑ Yes ❑ No status (e.g., National Historic Trust designation or properties significant in North Carolina history and archaeology)? 7b. What data sources did you use to determine whether your site would impact historic or archeological resources? 8. Flood Zone Designation (Corps Requirement) 8a. Will this project occur in a FEMA-designated 100-year floodplain? ❑X Yes ❑ No 8b. If yes, explain how project meets FEMA requirements: The project is in FEMA zone AE. No new structures will be placed in the floodplain. 8c. What source(s) did you use to make the floodplain determination? FEMA Flood Map # 3720184100J (Dated 05/02/06) Ruffin L. Hall City Manager City of Raleigh Ai Post Office Box 590 Raleigh, North Carolina 27602 plicant/Age is Signature Date (Age9F. signature is valid only if an authorization letter from the applicant is rovided. Page 10 of 10 Attachment A r- y� � -� .� aF• �, /tel!_. 4�: d�+"• s! l� :: �' .fYi ew ,,w ' �� r - .. Stadium Drive Sanitary Sewer Replacement, Wake Forest Lat. 35.984679, Long. -78.519744 An 8 -inch PVC sanitary sewer is damaged where it crosses Richland Creek on the south side of the Stadium Drive bridge. The stream bed width is approximately 20 feet. A closed circuit television inspection of the pipe shows that it is deflected in the centerline of the stream. City of Raleigh Sewer Maintenance staff has noted sewer back-ups upstream of the deflected pipe and there is concern that a sanitary sewer overflow will result. Approximately 40 linear feet of PVC pipe at the stream crossing will be replaced with restrained -joint ductile iron pipe. In order to perform the work one tree, which is in close proximity to an existing manhole, will be removed. Erosion control measures will be installed prior to the work and work will be performed in the dry. Streambed material will be harvested prior to pipe replacement and will be replaced in the bed after pipe replacement is complete. It is expected that a tire or track -mounted back -hoe and excavator will be used to replace the pipe, reconstruct the streambank and stabilize the streambank. The work area is within a recent stream restoration performed by the North Carolina Division of Mitigation Services. That office has provided as -built drawings and planting schemes from the original project (Attachments 1, 2, and 3). Once the sewer replacement is complete the stream bed, banks, and buffer areas will be restored to original contours and plantings per the as -built drawings. In order to minimize disturbance to the stream, streambanks, and buffers, all work will be confined to the underside and south side of the bridge. The dewatering plan includes installing an upstream pool under the bridge. The pump will be lowered onto the streambank from the bridge so that no vehicular access is necessary on the north side of the bridge. This work is being coordinated with the NC DOT. 7v hA j .. r. Wr 44 An 8 -inch PVC sanitary sewer is damaged where it crosses Richland Creek on the south side of the Stadium Drive bridge. The stream bed width is approximately 20 feet. A closed circuit television inspection of the pipe shows that it is deflected in the centerline of the stream. City of Raleigh Sewer Maintenance staff has noted sewer back-ups upstream of the deflected pipe and there is concern that a sanitary sewer overflow will result. Approximately 40 linear feet of PVC pipe at the stream crossing will be replaced with restrained -joint ductile iron pipe. In order to perform the work one tree, which is in close proximity to an existing manhole, will be removed. Erosion control measures will be installed prior to the work and work will be performed in the dry. Streambed material will be harvested prior to pipe replacement and will be replaced in the bed after pipe replacement is complete. It is expected that a tire or track -mounted back -hoe and excavator will be used to replace the pipe, reconstruct the streambank and stabilize the streambank. The work area is within a recent stream restoration performed by the North Carolina Division of Mitigation Services. That office has provided as -built drawings and planting schemes from the original project (Attachments 1, 2, and 3). Once the sewer replacement is complete the stream bed, banks, and buffer areas will be restored to original contours and plantings per the as -built drawings. In order to minimize disturbance to the stream, streambanks, and buffers, all work will be confined to the underside and south side of the bridge. The dewatering plan includes installing an upstream pool under the bridge. The pump will be lowered onto the streambank from the bridge so that no vehicular access is necessary on the north side of the bridge. This work is being coordinated with the NC DOT. 25' 0 50' . LEGEND __ A t� Z- 1 ZONE 1 RIPARIAN BUFFER PROPERTY LINE 1" 50' Ny�,���� !F' ~ ` Z- 2 ZONE 2 RIPARIAN BUFFER — — — — — EASEMENT LINE EXISTING SANITARY SEWER STREAM IMPACTS r - EXISTING STREAM BUFFER IMPACTS r t. .sup ' � � ♦ �•y � � ti ; �/fir- �/ K / ! z00 C • P STADIUM DRIVE SANITARY SEWER REPLACEMENT 'This map was developed using GIS base data from Wake County GIS (Naps) and as -built plans obtained from third parties. AECOM assumes no liability for any errors, omissions or inaccuracies in the information provided. AirsNOTE: : RESTORE CHANNEL CONTOURS AND y, PLANTING TO CONDITIONS SHOWN IN • ' RICHLAND CREEK STREAM RESTORATION RECORD DRAWING, SHEETS 5-C AND 6-C, PREPARED BY ECOLOGIC ON 7/28/10. CROSS SECTION FOR PROPOSED WORK IS AT APPROXIMATELY 0+50 ACCORDING TO RICHLAND CREEK STREAM RESTORATION STATIONING, PLEASE REFER TO SHEET 6-B. Exhibit 1 ��M �,�� ~�°^^ ••°�_ °'�^°'�' _°^'__'°^= STADIUM DRIVE EROSION CONTROL MEASURES Exhibit 2 This map was developed using GIS base data from Wake County GIS (iMaps, and as -built �OM plans obtained from third parties. AECOM assumes no liability for any errors, omissions or inaccuracies in the information provided. E `' h I b i ap tleMopea us AEM iDab kan �%e Cnunry GI YOMaysl u ul "'GAEOMassumes abAiryl m STADIUM DRIVE TRAFFIC CONTROL PLAN Exhibit 4 PROVIDE HIGH STRENGTH DOUBLE STITCHED J TYPE SEAMS WN IN SPOUT HIGH STRENGTH STRAPPING FOR HOLDING HOSE IN PLACE HEAVY DUTY DIRTBAG 55��#- WATER FLOW OR EQUAL FROM PUMP ACCEPTED DEWATERING DEVICE (SILT BAG) PROVIDE POSITIVE DRAINAGE FROM SILT BAG TO STREAM OPENING TO ACCOMMODATE UP TO 4' DISCHARGE HOSE :o -w SEDIMENT DIKE AGGREGATE UNOERLAYMENT �- (3- THICK NCDOT NO. 57 STONE) DEWATERING BAG NOTES: 1. THE DEWATERING BAG SHALL BE MADE OF NON -WOVEN GEOTEXTILE WITH A MIN. SURFACE AREA OF 225 SQUARE FEET. 2. ALL STRUCTURAL SEAMS SHALL BE SEWN WITH A DOUBLE STITCH USING A DOUBLE NEEDLE MACHINE WITH HIGH STRENGTH THREAD. 3. THE SEAM STRENGTH SHALL WITHSTAND 100 LB/IN USING ASTM D-4884 TEST METHOD. 4. THE GEOTEXTILE FABRIC SHALL BE A 10 OZ NON -WOVEN FABRIC. 5. DISCHARGE FROM THE DEWATERING BAG SHALL BE DIRECTED SUCH THAT PRE -DISTURBANCE HYDROLOGY IS NOT CHANGED. DEWATERING BAG HOSES DIVERSION PUMPS EWATERING P INTAKE HOSE D PUMP INTAKE HOSE FLOW CLEAN WATER WORK AREA LENGTH NOT TO EXCEED THAT WHICH CAN BE COMPLETED IN ONE DAY PLAN VIEW SUMP -HOLE OR POOL (12'70 18" DEEP, 2' DIA.) NOTES: 1. SANDBAG DIKES SHALL BE SITUATED AT THE UPSTREAM AND DOWNSTREAM ENDS OF THE WORK AREA AND STREAM FLOW SHALL BE PUMPED AROUND THE WORK AREA. THE PUMP SHOULD DISCHARGE INTO A STABLE VELOCITY DISSIPATER CONSTRUCTED OF RIP RAP OR SANDBAGS. 2. WATER FROM THE WORK AREA SHALL BE PUMPED TO A SEDIMENT FILTERING MEASURE SUCH AS A DEWATERING BASIN, SEDIMENT BAG, OR OTHER ACCEPTED DEVICE. THE MEASURE SHALL BE LOCATED SUCH THAT THE WATER DRAINS BACK INTO THE CHANNEL BELOW THE DOWNSTREAM SANDBAG DIKE WITHOUT CAUSING OUTLET EROSION BETWEEN THE SILT BAG AND CHANNEL. 3. AT THE END OF EACH WORK DAY, THE DISTURBED CHANNEL SHALL BE MATTED. 4. WHEN REPLACING CULVERTS, THE CONTRACTOR SHALL PLACE SAND BAGS ACROSS THE ENTIRE DOWNSTREAM FACE OF EACH PIPE TO PREVENT BACKFLOW DURING PUMP AROUND ACTIVITIES. TEMPORARY PUMP AROUND Exhibit 5 0 N FLOW NOTES 1. CONTRACTOR IS RESPONSIBLE FOR MAINTAINING WORK IN THE DRY. 2. PUMPING MAY BE REQUIRED TO KEEP WORK AREA DEWATERED. 3. ENCROACHMENT INTO WATERCOURSE SHOULD BE MINIMIZED. 4. COFFERDAM SHALL BE REMOVED WHEN WORK IS COMPLETE AND SHALL NOT BE LEFT UNATTENDED FOR ANY 24 HOUR PERIOD. SANDBAG COFFERDAM A WORK AREA LENGTH NOT TO EXCEED THAT WHICH CAN BE COMPLETED IN ONE DAY PLAN VIEW IMPERVIOS MEMBRANE WORK AREA FLOW SECTION A -A CROSS SECTION OF SANDBAG COFFERDAM Exhibit 6 BASE FLOW + 1 FOOT (2 FOOT MAX.) MINIMUM 1 GAUGE LIQ WIRES SILT FENCE 8'-0" MAXIMUM VARIABLE AS DIRECTED BY THE ENGINEER MINIMUM 12-1/2 GAUGE INTERMEDIATE WIRES GRADE NOTE: 1. USE SILT FENCE ONLY WHEN DRAINAGE AREA DOES NOT EXCEED 1/4 ACRE AND NEVER IN AREAS OF CONCENTRATED FLOW. 2. END OF SILT FENCE NEEDS TO BE TURNED UPHILL. 3. REMOVE SEDIMENT DEEPER THAN 12" AND REPAIR ANY UNDERMINING IMMEDIATELY. 4. FOR REPAIR OF SILT FENCE FAILURES, USE NO. 57 WASHED STONE. FOR ANCHOR WHEN SILT FENCE IS PROTECTING CATCH BASIN. 5. CONTRACTOR SHALL BE RESPONSIBILE FOR PLACEMENT AND REMOVAL OF FENCE. 6. CONTRACTOR SHALL BE RESPONSIBLE FOR RESTORING DISTURBED AREAS TO PRE -CONSTRUCTION CONDITION. Exhibit 7 STEEL POST WOVEN WARE FABRIC SILT FENCE FABRIC 26" FILL SLOPE i N ,-GRADE 6" MINIMUM COVER 2'-0" OVER SKIRT • 1,,;.,, ANCHOR SKIRT AS DIRECTED BY ENGINEER • SIDE VIEW MINIMUM 12-1/2 GAUGE INTERMEDIATE WIRES GRADE NOTE: 1. USE SILT FENCE ONLY WHEN DRAINAGE AREA DOES NOT EXCEED 1/4 ACRE AND NEVER IN AREAS OF CONCENTRATED FLOW. 2. END OF SILT FENCE NEEDS TO BE TURNED UPHILL. 3. REMOVE SEDIMENT DEEPER THAN 12" AND REPAIR ANY UNDERMINING IMMEDIATELY. 4. FOR REPAIR OF SILT FENCE FAILURES, USE NO. 57 WASHED STONE. FOR ANCHOR WHEN SILT FENCE IS PROTECTING CATCH BASIN. 5. CONTRACTOR SHALL BE RESPONSIBILE FOR PLACEMENT AND REMOVAL OF FENCE. 6. CONTRACTOR SHALL BE RESPONSIBLE FOR RESTORING DISTURBED AREAS TO PRE -CONSTRUCTION CONDITION. Exhibit 7 GRAVEL ENTRANCE SHALL BE MINIMUM 50 FEET IN LENGTH AND 12 FEET IN WIDTH WITH 20 F00T RADIUS AT EXISTING ROADWAY PLAN VIEW NOTES: 1. AGGREGATE SIZE - USE 2-3 INCH WASHED STONE (SURGE STONE OR RAILROAD BALLAST). 2. GRAVEL PAD THICKNESS - 6 INCHES MINIMUM. 3. WIDTH - 20 FT. MINIMUM OR FULL WIDTH AT ACCESS POINTS OF THE VEHICULAR ENTRANCE AND EXIT AREA, WHICHEVER IS GREATER. 4. LENGTH - 50 FT. MINIMUM. 5. LOCATION - INSTALL CONSTRUCTION ENTRANCES AT LOCATIONS SHOWN ON THESE PLANS TO LIMIT SEDIMENT FROM LEAVING THE SITE AND TO PROVIDE FOR MAXIMUM UTILITY BY ALL CONSTRUCTION VEHICLES. CONTRACTOR SHALL INSTALL ADDITIONAL GRAVEL CONSTRUCTION ENTRANCES NOT INDICATED ON THE PLANS REQUIRED FOR STAGING AND/OR BORROW AREAS AND MAINTAIN AT NO ADDITIONAL EXPENSE TO THE OWNER. CONTRACTOR SHALL SUPPLEMENT AND MAINTAIN GRAVEL CONSTRUCTION ENTRANCES AT HIS EXPENSE UNTIL FINAL ACCEPTANCE. 2"-3" WASHED STONE (SURGE STONE OR RAILROAD BALLAST) J \-GEOTEXTILE FABRIC UNDER ENTIRE SUITABLE SUBGRADE 6" MINIMUM LENGTH AND WIDTH OF STONE CROSS SECTION CONSTRUCTON ENTRANCE Exhibit 8 �� SITE EXISTING ROADWAY 50' MINIMUM ACCESS J \-GEOTEXTILE FABRIC UNDER ENTIRE SUITABLE SUBGRADE 6" MINIMUM LENGTH AND WIDTH OF STONE CROSS SECTION CONSTRUCTON ENTRANCE Exhibit 8 �� EROSION CONTROL NOTES: 1. THE CONTRACTOR SHALL EXERCISE EVERY REASONABLE PRECAUTION THROUGHOUT THE CONSTRUCTION OF THE PROJECT TO PREVENT EROSION AND SILTATION. EROSION CONTROL MEASURES SHALL BE INSTALLED AND MAINTAINED IN ACCORDANCE WITH NORTH CAROLINA SEDIMENT AND EROSION CONTROL GUIDELINES AND AS DIRECTED BY THE DESIGNER. 2. ALL REPAIR WORK SHALL BE PERFORMED IN DRY OR ISOLATED AREAS, WITH NO STANDING WATER OR WATER FLOWING THROUGH THE WORK AREA. 3. ALL EXCAVATED MATERIAL SHALL BE STOCKPILED WITHIN THE LIMITS OF DISTURBANCE FOR LATER REUSE OR DISPOSAL. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLING APPROPRIATE STABILIZATION MEASURES AROUND THE STOCKPILE AREA AND ANY TEMPORARY OR PERMANENT SPOIL AND TOPSOIL PILES TO PREVENT EROSION AND SEDIMENTATION. ALL PERMANENT OR TEMPORARY SPOIL PILES SHALL HAVE SILT FENCE INSTALLED ON THE LOW SIDE OF THE SPOIL PILES. 4. A TEMPORARY PUMP -AROUND SHALL BE UTILIZED BY THE CONTRACTOR DURING WORK ON THE STREAM TO DIVERT FLOW FROM AND DEWATER THE DESIGNATED AREAS IN ORDER TO WORK. THE TEMPORARY PUMP -AROUND USED BY THE CONTRACTOR SHALL MEET ALL REQUIREMENTS SPECIFIED IN THESE DETAILS. THE TEMPORARY PUMP -AROUND SHALL BE INSTALLED AND REMOVED IN ACCORDANCE WITH THE MANUFACTURER'S GUIDELINES. TWENTY-FOUR (24) HOURS PRIOR TO THE INITIATION OF PUMP -AROUND ACTIVITIES, THE CONTRACTOR SHALL MEASURE THE APPROXIMATE FLOW RATE AT THE PUMP -AROUND LOCATION. THE FLOW RATE SHALL BE SUBMITTED TO THE DESIGNER FOR APPROVAL. THE CONTRACTOR SHALL, THEREAFTER, UTILIZE A PUMP(S) SUFFICIENT TO ACCOMMODATE 120% (1.2 TIMES) THE APPROVED FLOW RATE. 5. IN THE EVENT OF A STORM, THE CONTRACTOR WILL BE RESPONSIBLE FOR THE REMOVAL OR PROTECTION OF ANY EQUIPMENT, TOOLS, MATERIALS OR OTHER ITEMS NEEDED TO COMPLETE THE WORK THAT COULD BE AFFECTED BY STORM FLOWS. SILT FENCE SHALL BE INSTALLED AS DEPICTED ON THE PLANS PRIOR TO THE COMMENCEMENT OF DISTURBANCE ACTIVITIES, SILT FENCE SHALL BE TEMPORARILY REMOVED IN ISOLATED WORK AREA TO PERMIT GRADING OF THE RESTORED STREAM. IMMEDIATELY FOLLOWING THE COMPLETION OF STABILIZATION MEASURES FOR EACH ISOLATED AREA AND PRIOR TO THE INITIATION OF WORK ON ANOTHER SECTION, THE SILT FENCE SHALL BE REINSTALLED AT ITS ORIGINAL LOCATION. SILT FENCE SHALL BE MAINTAINED HEREAFTER AND SHALL NOT BE REMOVED UNTIL GROUND COVER HAS BEEN FULLY ESTABLISHED WITHIN THE LIMITS OF DISTURBANCE. SILT FENCE SHALL ALSO BE INSTALLED ON THE LOW SIDE OF ANY TEMPORARY STOCKPILES OF EXCAVATED MATERIAL. 7. ALL DISTURBED SOILS WILL BE SEEDED FOR VEGETATIVE STABILIZATION FOLLOWING THE GUIDELINES DESCRIBED ON THIS SHEET AND ACCORDING TO THE FOLLOWING SCHEDULE: TEMPORARY OR PERMANENT SEEDING MUST BE APPLIED ON ALL GRADED SLOPES AND FILL WITHIN SEVEN CALENDAR DAYS, PERMANENT SEEDING MUST BE APPLIED TO ALL DISTURBED AREAS WITHIN 15 WORKING DAYS OR 90 CALENDAR DAYS. 8. ALL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CHECKED FOR STABILITY AND FUNCTIONAL OPERATION FOLLOWING EVERY RUNOFF PRODUCING RAIN EVENT AND/OR AT LEAST ONCE PER WEEK. ANY NEEDED MAINTENANCE OR REPAIRS SHALL BE MADE IMMEDIATELY TO MAINTAIN ALL MEASURES AS DESIGNED. ACCUMULATED SEDIMENT SHALL BE REMOVED FROM CONTROL MEASURES WHEN THEY REACH APPROXIMATELY 50% OF THEIR FUNCTIONAL CAPACITY. THESE MEASURES SHALL BE REMOVED IF DISTURBED DURING MAINTENANCE. ALL SEEDED AREAS SHALL BE FERTILIZED, RESEEDED, AND MULCHED, AS NECESSARY, TO PROMOTE THE ESTABLISHMENT OF VEGETATIVE COVER. Exhibit 9 *THESE NOTES WERE TAKEN FROM THE RICHLAND CREEK STREAM RESTORATION PLANS, PREPARED BY KCI, DATED MARCH 27, 2015. THE INTENT IS TO REPAIR OR REPLACE THE STREAM TO EXISTING CONDITIONS OR BETTER. SEDIMENT AND EROSION CONTROL NOTES AECOM a EROSION CONTROL NOTES CONTINUED: GROUND STABILIZATION STABILIZATION SITE DESCRIPTON TIME PERIMETER DIKES, SWALES, 7 DAYS DITCHES, AND SLOPES HIGH QUALITY WATER (HOW) 7 DAYS ZONES SLOPES STEEPER THAN 3:1 7 DAYS SLOPES 3:1 OR FLATTER 7 DAYS ALL OTHER AREAS WITH SLOPES 7 DAYS FLATTER THAN 4:1 INSPECTIONS WEEKLY INSPECTIONS REQUIRED. RAIN GAUGE MUST BE PRESENT AT SITE. INSPECTIONS REQUIRED AFTER 0.5" RAIN EVENTS. INSPECTIONS ARE ONLY REQUIRED DURING "NORMAL BUSINESS HOURS". INSPECTION REPORTS MUST BE AVAILABLE ON-SITE DURING BUSINESS HOURS UNLESS A SITE SPECIFIC EXEMPTION IS APPROVED. RECORD MUST BE KEPT FOR 3 YEARS AND AVAILABLE UPON REQUEST. ELECTRONICALLY AVAILABLE RECORDS MAY BE SUBSTITUTED UNDER CERTAIN CONDITIONS. TEMPORARY SEED MIX: THE CONTRACTOR SHALL UTILIZE THE FOLLOWING SEED/FERTILIZER MIX IN SEEDING ALL DISTURBED AREAS WITHIN THE PROJECT LIMITS: SUMMER MIX (APRIL 15 - AUGUST 15) GERMAN MILLET..... SETARIA ITALICA 20 LBS/ACRE BROWNTOP MILLET UROCHLOA RAMOSA 20 LBS/ACRE WINTER MIX (AUGUST 15 - APRIL 15) RYE GRAIN SECALE CEREALE 100 LBS/ACRE WHEAT TRITICUM AESTIVUM 20 LBS/ACRE PERMANENT SEED MIX (CONSERVATION EASEMENT) THE CONTRACTOR SHALL UTILIZE THE FOLLOWING SEED AND FERTILIZER SPECIFICATION IN ALL STREAMSIDE AND FLOODPLAIN NATURAL AREAS: APPLICATION RATE (IN MIX) PERMANENT NATIVE SPECIES % OF MIX LBS/ACRES ORCHARD GRASS - DACTYLIS GLOMERATA 7 1.5 BLUESTEM - ANDROPOGON GLOMERATUS 7 1.5 VIRGINIA WILDRYE - ELYMUS VIRGINICUS 7 1.5 RIVER OATS - CHASMANTHIUM LATIFOLIUM 7 1.5 PURPLE LOVE GRASS - ERAGROSTIS SPECTABILIS 7 1.5 DEERTONGUE - PANICUM CLANDESTINUM 32.5 7.5 SWTICHGRASS - PANICUM VIRGATUM 32.5 7.5 TOTALS 100 22.5 TEMPORARY NURSE CROP ONE OF THE FOLLOWING SPECIES WINTER MIX (AUGUST 15 - APRIL 15) RYE GRAIN - SECALE CEREALE WHEAT - TRITICUM AESTNUM SUMMER MIX (APRIL 15 - AUGUST 15) GERMAN MILLET - SETARIA ITALICA BROWNTOP MILLET - UROCHLOA RAMOSA APPLICATION RATE (IN MIX) LBS/ACRES 40 30 10 10 FERTILIZER AND LIMESTONE SHALL BE APPLIED AT THE RATE OF 500 LBS/ACRE AND 2000 LBS/ACRE, RESPECTIVELY. FERTILIZER SHALL BE 5-10-10 ANALYSIS. UPON SOIL ANALYSIS A DIFFERENT RATIO OF FERTILIZER MAY BE USED. •THESE NOTES WERE TAKEN FROM THE RICHLAND CREEK STREAM RESTORATION PLANS, PREPARED BY KCI, DATED MARCH 27, 2015. THE INTENT IS TO REPAIR OR REPLACE THE STREAM TO EXISTING CONDITIONS OR BETTER. SEDIMENT AND EROSION CONTROL NOTES EROSION CONTROL NOTES CONTINUED: SEEDBED PREPARATION: THE SEEDBED SHALL BE COMPRISED OF LOOSE SOIL AND NOT COMPACTED. THIS MAY REQUIRE LIGHT MECHANICAL LOOSENING OF THE SOIL. SOIL AMENDMENTS SHOULD FOLLOW THE FERTILIZER AND LIMING DESCRIPTION IN THE ABOVE SECTIONS. FOLLOWING SEEDING, MULCHING SHALL FOLLOW THE BELOW APPLICATION METHODS AND AMOUNTS. MULCHING: SEEDED AREAS ARE TO BE PROTECTED BY SPREADING STRAW MULCH UNIFORMLY TO FORM A CONTINUOUS BLANKET (75% COVERAGE = 2 TONS/ACRE) OVER SEEDED AREAS. CONTRACTOR MAY PROPOSE ALTERNATE METHODS OF SEED, FERTILIZER AND LIMING (HYDRO -SEEDING) UPON SUBMISSION TO THE DESIGNER OF CALCULATIONS SHOWING THE EQUIVALENCY OF THE PROPOSED METHOD. STREAM ZONE PLANTING: LIVE STAKES: 1.5' TO 2' LENGTHS, Xz" TO 2" DIAMETER, 3 ROWS AT 2' CENTER SPACING ON ALL STREAM BANK, RANDOM SPECIES PLACEMENT COMMON NAME SCIENTIFIC NAME BLACK WILLOW SALIX NIGRA SILKY WILLOW SALIX SERICEA SILKY DOGWOOD CORNUS AMOMUM ELDERBERRY SAMBUCUS CANADENSIS NOTES: COIR MATTING AND LIVE STAKES SHALL BE INSTALLED ALONG ANY DISTURBED BANKS WITHIN THE REPAIR AREAS THAT DO NOT HAVE SOIL LIFTS. AT LEAST THREE OF THE LISTED SPECIES MUST BE INSTALLED AND NO SINGLE LIVE STAKING SPECIES SHALL COMPOSE MORE THAN 40% OF THE TOTAL NUMBER OF LIVE STAKES TO BE INSTALLED. ;THESE NOTES WERE TAKEN FROM THE RICHLAND CREEK STREAM RESTORATION PLANS, PREPARED BY KCI, DATED MARCH 27, 2015. THE INTENT IS TO REPAIR OR REPLACE THE STREAM TO EXISTING CONDITIONS OR BETTER. SEDIMENT AND EROSION CONTROL NOTES ECOM w Rte\ 4- • o 'p � I if -- --\_ / N/F 50UTHEASTERN BAPTIST THEOLOGICAL SEMINARY (PASCHAL GOLF CLUB) OB 1244 PG 333 S - BUILT SURVEY BY RIRNER UNO SU1RVE H VEYEPLLOL SURD .- . 0' SCALE I' I' CONTOUR INTERVAL LEGEND: ®-11WLWEG OESIGN THALWEG AS BUILT OF - - - -CENTERU NE 0Iµ H OR TRIS -CONSTRUVEO RILTl£ R -ROOT WAO ® -BRUSH uA - PRE- CONCHANNEL -/URISO—N, rA_Tw+o -RIP-RAP ...R �;P_ WN CHANNEL As RM I I M—UNE - —j 1 R ' DIY 9tE Jt,� (xo�TO x=Al[1 IE r g dal 9 RECORD DRAWING T/z0/ID s�T 020591101 CT s DT Attachment 1: Stream Plan and Profile at Work Area 5—C 9 �yE STATION: 24+00 STATION: 25+00 STATION: 26+00 m STATION: 27+00 STATION: 28+00 i i m i i i i i m i m m m fA m m i i Y0 b � � m m 1 ........Y».Yi m-bN,YNwewm Atl wm-'NN........ tlY YAYw�Ym '�r..hid ... 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