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HomeMy WebLinkAbout20120798 Ver 1_401 Application_201208122®120798 --,, r�Ca @L s'd19 LETTER OF TRANSMITTAL AUG 2 4 2012 ® DENR - I? QUALITY o Ward Consulting Engineers, P.C. �► ande ateeem d 8368 Six Forks Road, Suite 104 Raleigh North, Carolina 27615 -5083 (919) 870 -0526 Fax: (919) 870 -5359 To: Gl %1�C�'�l2, 24 Ct Date: 623 ` n70 /o. Company: We are sending you: _ ✓Attached _Under separate cover via the following: _Shop drawings _Prints _Plans _Samples _Specifications _Copy of letter Change order These are Transmitted as checked below: ✓ For approval _Approved as submitted _For your use _Approved as noted _As requested _Returned for corrections _For review & comment Other _Resubmit_ copies for approval _Submit _copies for distribution _Return _corrected prints Copy To: Signed: t w \p�pF W A 1 I > y 20120798 Office Use Only: Corps action ID no. DWQ project no. Form Version 1.3 Dec 10 2008 Pre - Construction Notification PC Form A. Applicant Information 1. Processing 1 a. Type(s) of approval sought from the Corps: r ® Section 404 Permit ❑ Section 10 Permit 1 b. Specify Nationwide Permit (NWP) number: NWP 13 & NWP 27 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 1e. 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 1g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h below. ❑ Yes ® 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: Ramblewood Drive Drainage Improvements 2b. County: Wake 2c. Nearest municipality / town: Raleigh 2d. Subdivision name: Ramblewood / Ramblestone 2e. NCDOT only, T.I.P. or state project no: 3. Owner Information 3a. Name(s) on Recorded Deed: Property Information Table on Page 15 included for multiple properties included in this project for all information this section 3b. Deed Book and Page No. 3c. Responsible Party (for LLC if applicable): � R'Lgk_L'R0W1R= 2 3d. Street address: IJU 3e. City, state, zip: ] d 4 2012 3f. Telephone no.: 3g. Fax no.: Weie n 6 wateeBranch 3h. Email address: Page 1 of 14 PCN Form —Version 1.3 December 10, 2008 Version 4. Applicant Information (1f different from owner) 4a. Applicant is: ❑ Agent ® Other, specify: 4b. Name: Carl R. Dawson, PE 4c. Business name (if applicable): City of Raleigh Public Works Department 4d. Street address: 222 West Hargett Street, PO Box 590 4e. City, state, zip: Raleigh, NC 27602 4f. Telephone no.: 919 - 966 -3030 4g. Fax no.: 919 - 966 -7638 4h. Email address: carl.dawson @raleigh.gov 5. Agent/Consultant Information (if applicable) 5a. Name: Becky L. Ward, PE 5b. Business name (if applicable): Ward Consulting Engineers, PC 5c. Street address: 8368 Six Forks Road, Suite 104 5d. City, state, zip: Raleigh, NC 27615 5e. Telephone no.: 919 - 870 -0526 5f. Fax no.: 919- 870 -5359 5g. Email address: bward @wce- corp.com Page 2 of 14 PCN Form —Version 1.3 December 10, 2008 Version B. Project Information and Prior Project History 1. Property Identification 1 a. Property identification no. (tax PIN or parcel ID): Please see the Property Information Table on Page 15 multiple property information 1 b. Site coordinates (in decimal degrees): Latitude: 36.834128 Longitude: - 78.642854 (DD.DDDDDD) (- DD.DDDDDD) 1c. Property size: Please see the Property Information Table on Page 15 for multiple property area in acres 2. Surface Waters 2a. Name of nearest body of water (stream, river, etc.) to proposed project: Unnamed Tributary of Crabtree Creek 2b. Water Quality Classification of nearest receiving water: C:NSW 2c. River basin: Neuse Page 3 of 14 PCN Form —Version 1.3 December 10, 2008 Version 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: The project is located on an unnamed tributary of Crabtree Creek. At 312 Ramblewood Drive an existing 18 inch pipe crosses the roadway and due to its current size is restricting flow and causing structural flooding at 312 Ramblewood Drive and righ of way flooding. North Hills Mall and Interstate 1-400 comprise approximately 2/3 of the 20 acre watershed with the remaining 1/3 of the land use as single family residences to the 18 inch pipe. The project begins at the right of way of 1-400 where an existing 36 inch pipe crosses 1-400. A small channel has formed downstream of the pipe however the area has not been maintained and debris and sediment has impaired the active channel. The channel becomes more defined approximately 100 feet downstream and continues to enlarge and deepen until it enters an 18 inch pipe in the back yard of 312 Ramblewood Drive. The pipe extends approximately 60 feet and ends at the east side of the house. The pipe discharges into an existing 70 feet long channel that terminates at the existing 18 inch pipe street system. The 18 inch street collection system exits on the south side of Ramblewood Drive and enters an existing stream that continues approximately 112 linear feet to the property line at 312 Ramblewood Drive where the project ends. The stream within the project limits are at a minimum intermittent. The stream buffer north of Ramblewood Road is wooded but narrows in places due to existing maintained residential lawns. The stream on the south side of the stream has a wooded buffer as the existing house is set back an extended distance from the street. 3b. List the total estimated acreage of all existing wetlands on the property: None within the disturbed limits of the project. 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 464 Linear feet 3d. Explain the purpose of the proposed project: The project was requested by the property owner at 312 Ramblewood to address structural flooding that is occurring due to the inadequate street pipe system. An additional concern was presented by the property owner at 300 Ramblewood Drive to address the stream degradation issues and flooding of his shed that is occurring in his rear yard which was incorporated into the project. The project will reduce flooding at 312 Ramblewood through the removal of the 18" inch pipe in the rear yard and upsize the pipe system to a 48 inch pipe at the street. Stream restoration is also planned to improve stormwater and sediment transport behind 300 Ramblewood Road and stabilization measures on the downstream side of the upgraded system. Page 4 of 14 PCN Form —Version 1.3 December 10, 2008 Version 3e. Describe the overall project in detail, including the type of equipment to be used: The project is primarily a street pipe system upgrade however; the project was expanded to address stream issues upstream and downstream of the roadway. The upstream limit of the project begins at the 1-440 right -of -way. From the right -of -way approximately 87 linear feet of stream will be restored in which the dimension, pattern, and profile will be improved. Debris in the buffer will be removed and the area re- graded to improve flow. The stream's sinuosity will be improved and constructed riffles will be installed to provide vertical stability. The buffer will be replanted with herbaceous and woody species. Continuing downstream and just below the restoration area no improvements will be made to the existing channel for approximately 171 linear feet. The channel within this reach is currently incised but stable and is in a heavily wooded area. Stream improvements will begin again at the existing 18 inch pipe that originates in the rear yard of 312 Ramblewood Drive. This existing pipe will be removed and approximately 112 linear feet of stream will be restored back to a natural channel. The stream in this area will contain a bankfull channel and the adjacent area will be graded to accommodate larger storm events and convey the water away' from the existing structure. The channel will be constructed with a sinuous alignment and constructed riffles will be installed to provide vertical stability within this reach. The stream bank will be replanted with herbaceous and woody vegetation. The existing 65 linear feet of stream channel immediately downstream of the day lighted channel segment will have bank improvements and the channel will be widened to accommodate the entrance to the proposed drop inlet. Riprap will be placed at the drop inlet structure entrance for grade and erosion control. The drop inlet will be the entrance to the proposed larger pipe system crossing Ramblewood Drive. Additional inlets in the roadway are included as a part of the system upgrades to relive street flooding. The proposed 48 inch pipe exits into an existing stream on the south side of Ramblewood Drive. To construct the proposed pipe a large tree near the roadway will need to be removed. This area has scoured out and the existing tree roots are currently holding the bank and driveway. The proposed pipe headwall has been extended to allow for the area from the top of the retaining wall to the roadway to be backfilled and replanted with woody vegetation providing stability for the driveway. The wall will also provide protection from scour from the stream. To prevent scour on the stream bank and the toe of the retaining wall rip rap will be placed on the bank of the pool area and the terrace bank. Boulders are planned to be installed downstream of a rock waterfall where current bank erosion is evident. Grading of the south terrace bank is proposed for a 40 foot stream segment at the end of the project to reduce velocities from large storm events that will enter the adjacent downstream property. Buffer zones 1 and 2 will receive supplemental woody plantings and herbaceous seed. 4. Jurisdictional Determinations 4a. Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property / project (including all prior phases) in the past? El Yes ®No ❑Unknown Comments: 4b. If the Corps made the jurisdictional determination, what type of determination was made? El Preliminary El Final 4c. If yes, who delineated the jurisdictional areas? Agency /Consultant Company: Name (if known): Other. 4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation. 5. Project History 5a. Have permits or certifications been requested or obtained for this project (including all prior phases) in the past? ❑Yes ®No El Unknown 5b. If yes, explain in detail according to "help file" instructions. 6. Future Project Plans 6a. Is this a phased project? ❑Yes ® No 6b. If yes, explain. Page 5 of 14 PCN Form — Version 1.3 December 10, 2008 Version C. Proposed Impacts Inventory 1. Impacts Summary 1 a. Which sections were completed below for your project (check all that apply): ❑ Wetlands ® Streams - tributaries ® Buffers ❑ Open Waters ❑ Pond Construction Page 6 of 14 PCN Form — Version 1.3 December 10, 2008 Version 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 Type of jurisdiction number — Type of impact Type of wetland Forested (Corps - 404, 10 Area of impact Permanent (P) (if known) DWQ — non -404, other) (acres) or Temporary T W1 ❑P ❑T E:1 Yes El Corps ❑ No ❑ DWQ W2 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W3 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W4 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W5 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W6 ❑ P []1" ❑ Yes El Corps ❑ No ❑DWQ 2g. Total wetland impacts 2h. Comments: No existing wetlands are proposed to be impacted by this project. 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 - 3b. Type of impact 3c. Stream name 3d. Perennial 3e. Type of jurisdiction 3f. Average 3g. Impact Permanent (P) (PER) or intermittent (Corps - 404, 10 DWQ — non -404, stream width length (linear or Temporary (T) (INT)? other ) feet (feet) feet) S1 ®P ❑ T Restoration pattern /profile /dimension UT to Crabtree F-1 PER ® INT ® Corps ® DWQ 70 S2 ® P [I T Stream bank stabilization & grading to transition to UT to Crabtree El PER ®Corps restoration reach ® INT ® DWQ 30 S3 ® P El Stream bank stabilization and widening to transition UT to Crabtree EI PER ®Corps to inlet structure ® INT ® DWQ 40 S4 ® P El Regrading of stream bank and placement of riprap UT to Crabtree ®PER ®Corps on bank for stabilization [J INT ® DWQ 15 S5 ® P ❑ T Bank stabilization with boulder placement UT to Crabtree ® PER ❑ INT El Corps El DWQ 10 S6 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ 3h. Total stream and tributary impacts 165 3i. Comments: The stream impacts for this project are to improve the function of the stream flow and overall system function and are listed as follows: S1- The stream impacts involve the restoration of pattern - profile- and dimension to improve function. The current channel has been filled in with debris and sediments. The stream will be replanted with herbaceous and woody vegetation. S2- The stream impacts in this area on both the upstream and downstream of the existing 18 inch pipe that is planned to be removed. The banks in this area will be transitioned from the existing channel to meet the proposed restored channel. The banks will be replanted with herbaceous and woody vegetation. S3- The stream will be re -graded in this area to transition the existing channel to the proposed storm drainage inlet. The banks Page 7 of 14 PCN Form — Version 1.3 December 10, 2008 Version will be stabilized with seed and woody vegetation. S4 -The stream will be re- graded at the outlet of the proposed pipe and in the area just below to transition it to the proposed retaining wall. The banks around the pipe outlet are proposed to be lined with riprap to prevent erosion in this high velocity area. S5- The stream impacts will consist of the placement of three boulders in a bank that is currently scouring just downstream of a rock waterfall to stabilize the bank. 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 (if applicable) Type of impact Waterbody type Area of impact (acres) number — Permanent (P) or Temporary 01 ❑P ❑T 02 ❑P ❑T 03 ❑P ❑T 04 ❑P ❑T 4f. TotaI open water impacts 4g. Comments: No open water impacts 5. Pond or Lake Construction If pond or lake construction Droposed, then com lete the chart below. 5a. 5b. 5c. 5d. 5e. Pond ID Proposed use or purpose of Wetland Impacts (acres) Stream Impacts (feet) Upland number pond (acres) Flooded Filled Excavated Flooded Filled Excavated Flooded P1 P2 5E 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: Page 8 of 14 PCN Form —Version 1.3 December 10, 2008 Version 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? 6b. Buffer impact number — Permanent (P) or Temporary ■ 6.3 ■ ' // ► ' ■ - QWM Reason for impact • stream restoration Construction access Stream widening & bank stabilization Stream name UT to Crabtree Creek UT to Crabtree Creek UT to Crabtree Creek ® Neuse ❑ Tar - Pamlico ❑ Other: ❑ Catawba ❑ Randleman 6e. 6f. 6g, Buffer Zone 1 impact mitigation (square feet) required? ❑ Yes 3600 ® No ❑ Yes ® No ❑ Yes 400 ® No Zone 2 impact (square feet) 400 375 6h. Total buffer (impacts I See total impacts See total impacts in in chart' ' chart below 6i. Comments. The buffer impacts will include stream channel widening and temporary construction access to perform the stream restoration and pipe system upgrades. Seven buffer impact locations were identified and therefore the chart below shows all impacts: Buffer Impact Summary: Buffer Impact Reason Stream name Mit Req? Zonel Zone 2 61 —P Stream Restoration UT to Crabtree No 3600 400 B2 -T Construction Access UT to Crabtree No 0 375 133 -P Stream widening & bank stabilization UT to Crabtree No 400 0 134 -T Construction Access UT to Crabtree No 1200 0 65 -P Grading and Pipe End Wall UT to Crabtree No 600 0 66 -T ' Construction Access UT to Crabtree No 1650 1400 137 -T Terrace Grading UT to Crabtree No 300 0 Total= 7,750sf 2,175sf 61- The buffer impacts at this location include grading and floodplain debris removal for the construction of the stream restoration. The area will be replanted with herbaceous and woody vegetation. 132- The buffer impacts upstream and downstream of the pipe to be removed at 312 Ramblewood will include temporary access in the buffer for construction equipment. The area will be replanted. 133- The buffer impacts include increases in the stream channel dimension and grading of the new stream banks. The banks will be replanted. 64- The impacts in the buffer at this location will be for temporary construction equipment access. 135- The buffer impacts at his location include proposed grading and the replacement of an existing pipe headwall with a elongated retaining wall. The retaining wall will be backfilled and woody vegetation established on the reconstructed bank. This area has scoured out and is close to undermining the existing driveway. The backfill will assist in stabilizing the driveway. The top of the retaining wall that will be exposed above grade is approximately 9" and extends for approximately 35 feet in length (26 sf). 136- The buffer impacts in this area will be in getting construction equipment into the project site to make the repairs. Access has been designated to avoid as many trees as possible in the buffer. The buffer will be mulched or replanted. 137- Grading of the terrace bank is proposed in this area to reduce the velocity in large storm events downstream. Page 9 of 14 PCN Form —Version 1.3 December 10, 2008 Version D. Impact Justification and Mitigation 1. Avoidance and Minimization 1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project. The upgrade of the pipe system can not be avoided because due to the restrictive pipe sizes at Ramblewood Drive structural flooding is occurring upstream. The original goal of the pipe upgrade project was expanded to address stream concerns both upstream and downstream of the project so that the total conveyance system improvements were addressed in the design. The stream restoration work at the top of the project was added to improve stream function. The stream restoration will improve the channel pattern profile and dimension increasing sediment transport and function. Natural channel design techniques such as constructed riffles have been incorporated into the stream design. With the removal of approximately 100 feet of 18 inch pipe, 112 linear feet of channel was able to be restored as a part of the project. Upgrades to the stream at the outlet of the improved pipe system have only been designed at high areas of stress in the system. Additionally the entire floodplain will be enhanced with woody species to promote long term stability. The improvements to the buffer through riparian seed and woody plantings will improve habitat and water quality throughout the project length. 1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. The limits of disturbance have been set to minimize damage to existing trees and vegetation adjacent to the stream and in the buffers. The proposed construction will minimize proposed impacts by pumping around any base flow withing the restoration areas and performing all construction from the top of the stream bank in all other areas of the project. Construction equipment will not be allowed to cross an active stream. Natural stone material will be used in the structures to be constructed in the stream to promote aquatic species habitat and vegetation will be used on the stream bank for long term stabilization. 2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State za. uoes the project require Compensatory Mitigation for ❑ Yes ® No impacts to Waters of the U.S, or Waters of the State? 2b. If yes, mitigation is required by (check all that apply): ❑ DWQ ❑ Corps ❑ Mitigation bank 2c. If yes, which mitigation option will be used for this project? ❑ 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) I Type I 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 10 of 14 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 ❑ Yes ® 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. Zone 6c. Reason for impact 6d. Total impact Multiplier 6e. 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 11 of 14 PCN Form — Version 1.3 December 10, 2008 Version Page 12 of 14 PCN Form —Version 1.3 December 10, 2008 Version E. Stormwater Management and Diffuse Flow Plan (required by DWQ) I. Diffuse Flow Plan 1 a. Does the project include or is it adjacent to protected riparian buffers identified within one of the NC Riparian Buffer Protection Rules? ® Yes ❑ No 1 b. If yes, then is a diffuse flow plan included? If no, explain why. Comments: The project involves storm drainage system repair and stream ❑ Yes ® No restoration /repairs. There is no significant impervious area being added as a result of these improvements. 2. Stormwater Management Plan 2a. What is the overall percent imperviousness of this project? 0% 2b. Does this project require a Stormwater Management Plan? ❑ Yes ® No 2c. If this project DOES NOT require a Stormwater Management Plan, explain why: There are no building improvements or additonal significant impervious areas associated with this project. The project only involves storm drainage improvements to existing pipe and improvements to the stream channel and bank for restoration /stabilization. 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? g ❑ Certified Local Government [I DWQ Stormwater Program ❑ DWQ 401 Unit 3. Certified Local Government Stormwater Review 3a. In which local government's jurisdiction is this project? City of Raleigh ® Phase II 3b. Which of the following locally - implemented stormwater management programs ❑ NSW apply (check all that apply): ❑ USMP ❑ Water Supply Watershed ❑ Other: 3c. Has the approved Stormwater Management Plan with proof of approval been ❑ Yes ❑ No attached? 4. DWQ Stormwater Program Review ❑ Coastal counties 4a. Which of the following state - implemented stormwater management programs apply El HQW El ORW (check all that apply): ❑ Session Law 2006 -246 ❑ Other: 4b. Has the approved Stormwater Management Plan with proof of approval been attached? ❑ Yes ❑ No 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 12 of 14 PCN Form —Version 1.3 December 10, 2008 Version F. Supplementary Information 1. Environmental Documentation (DWQ Requirement) 1 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 SEPA 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 ❑ 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. N/A Page 13 of 14 PCN Form — Version 1.3 December 10, 2008 Version 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 ® No impacts? F1 Raleigh 5c. If yes, indicate the USFWS Field Office you have contacted. ❑ Asheville 5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? No endangered species or designated critical habitat have been found within the project area. 6. Essential Fish Habitat (Corps Requirement) 6a. Will this project occur in or near an area designated as essential fish habitat? 11 ❑ Yes ® No 6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat? The stream is a headwater stream located in an urban area. 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? The NC Historic Preservation Office website (www. hpo. dcr. state. nc. us) was searched and no sites were listed for this property. In addition, no architectural structures or archaeological artifacts were noted during preliminary surveys at the site. This area is an established urban area within the City of Raleigh. 8. Flood Zone Designation (Corps Requirement) 8a. Will this project occur in a FEMA - designated -100 -year floodplain? ❑ Yes ® No 8b. If yes, explain how project meets FEMA requirements: 8c. What source(s) did you use to make the floodplain determination? NC Floodma_ps site (www.ncflo-odmaps.com) was searched for FEMA floodplain limits. Carl R Dawson, PE Applicant/Agent's Printed Name Applicant/Agent's Si ture ,��j Date (Agent's signature is valid only if an authori n letter from t applicant is provided.) Page 14 of 14 PCN Form —Version 1.3 December 10, 2008 Version N a-1 l0 N N N 01 M M N l0 l0 � 01 lD m m � n 1D M N n 00 01 co O 00 00 00 00 00 00 W m 00 00 00 to m 0 m m o to u1 0 0 M M 0 a M 0 z 0 0 0 0 0 0 0 0 n n n n n n n n r h — a 10 a a a a a a a a a W a Z Z Z Z Z Z Z Z x O 1 U. z Z Z Z z Z z z Z a' c O C CL M O .-I N M v M W .-4 N ei l0 l0 l0 l0 1p lD t0 �O a n n n n n n n n N N N N N N N N N u u u u u u u u _ z Z Z z Z Z z Z +�• t t t r t t r t � 00 Do m n0 m m m m OC 0: 0: CC C M M M O O O O O z z z o o o o 2� oj v C7 l7 l7 W J a o m m m m m cr CC CC 0 99999 L O Q O N O N 1!1 M VI V T� N m M M M Y _Z Z 0 � u m z Dac a ao -m ui Z Y W } W CL a a O c 00 3 i w 3 zz T �o a WOCQ3z �3 v m x o 3 a m 0 myzaa °zj} c °C Z 0 W O S s v Q a' aW' 0 Z > ix VI S m� LL W a r C y aEi 0 ca o O O m z O1 M oa m 00 \ O 00 01 o�0000 m n \ 00 N M a o0 \ Cf m m n n \ � VI N M M ' \ 00 n In M �D O \ N 0 N rn ao M O N \ \ n ei N N N cn °� Y E z cu z O m ,e Q ( ) O z cc H m o f o 03 m W Q N W 00DaZZ } Y >u CU 0 o Z � N 3= z W O 3 W g o at 3 i aw �W` a3z`g�3 m ��° o E� O ? O m z 0 o CL 01°cu o LL3ZWO�� 4 t/! u0 m� LL 3 w a In m m a CC3 �J �--� ^� P1 �--� U 4) �O P� Ramblewood Drive Storm Drainage Improvements Photo Log Defined channel downstream of the restoration area, no improvements this segment. Swale diverting water around house at 312 Ramblewood over existing 18 inch pipe, proposed open channel this area. Upper most reach of the stream channel clogged with debris and sediment, this segment to be restored. Defined channel viewing entrance of 18 inch pipe in back yard of 312 Ramblewood Drive. Ramblewood Photo Log 1 of 2 Pipe outlet of 18 inch RCP at side yard of 312 Ramblewood Drive. Ramblewood Drive as viewed looking Ramblewood Drive looking south to the driveway at 323. Existing pipe outlet and endwall at 323 Ramblewood to be replaced. Existing channel downstream of the existing headwall, proposed enhancement only this segment. Ramblewood Photo Log 2 of 2 rA Cd C4 C� . Two O cn O C4 U 0 Q Ch N 00 N 0 m c 00 m y 72 L W p t� 4 C 11 } S w11�� JJ} a � `~ —� —Th �_Ci!,cle l�! Nor tti' ►li i5 " ='S t f x`j4i a� f � fA + `1 n f - 4 r +rr"', z !f °fiat.: °, Sirm,,,,r rr' �;. PROJECT - BOUNDARY ANON— J � t rs -♦ ���y1�1 j ♦ 1 f , k cr t � ingV311, 'Or � yyoppcfiiTRcl ¢ v J..� r� '� -� —� J �Erra�� n-J o RAMBLEWOOD DRIVE PROJECT LOCATION MAP CITY OF RALEIGH,NORTH CAROLINA DATE: JULY 24. 2012 City of RaklO r�iR'atie� WARD CONSULTING ENGINEERS, PC 8388 Six Forks Rd. Suite 104 919 870 -0528 Mana ement Raleigh, NC 27815 -5083 FAX 919) 870 -5359 IN �/` fir• . A , ■ �i��ft►: �'' ��i�i� 'iil�uiit %';%1�111i11��1����"�: i %� ��1�iiiii� "ilk among RAMBLEWOOD DRIVE pull WATERSHED MAP raj it�r�w,� CITY OF RALEIGH,NORTH CAROLINA DATE: y � V ti rn v 00 r" 0 N W Q1 3 a s w sL 2 1 rnr I•'iYln,i t IY I Ihis fiIrr.!ee 111 Nof:Ii H„ 5t 41 a ' I I ' w � t►I�PiLZ 0 1 1 1 1 1 U _ areas 1 1 ► � 1 1.11' � I� 1 i� i i -0 101"WI1R11 • "W RAMBLEWOOD DRIVE .r���r�•`1 ►��►•ra��r►��iri�` -lei SOILS MAP fir► CITY OF • ' CAROLINA DATE: JULY 24. 2012 t igh City of Rale r�watie� Man ement WARD CONSULTING ENGINEERS, PC 8368 Sig Forks Rd. 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Eidsting Cross Section 11 i, qt"'� *c.U,,]n 21WI 11 315.00 21 0.00 5.00 10.00 15.00 20.00 25.00 ... 11314.00 Fidsting Cross Section 12 o Nil' 0. 11314.00 Fidsting Cross Section 12 o Nil' 0. Q� �i--1 O F� CC3 O U 4� C4 O u Q� t�A W cd b�A O N Q d Cf t U D d V 0 0 d 12 O 0 u c N cn v, Q 0 a Cl? N m O C Q m N (J ¢ R N CD d Q N u) O Q of ao V 4 m�n� O °�-� Q R ao O CDQ N N N M O Q a d O a 0 N O co 0 a O oON O v �t N V O CN Cl) (O 00 (Q 00 f-O O M moo CO M NN N11 00 -IT r O 6 Ci 04 W (0 06 (O (0 ui 00 (O 00 f� of l� M C � `- m � d CL n N O O O O O O O O O O O r MO M r N O O o � O d CL OC jq� OOMMN�N�MN�M�N.O r r e� -VNOt� 3 0 a. 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OMOrNmv0coP- r r r r r r r r � N m O C Q m N (J ¢ R N CD d Q N u) O Q of ao V 4 m�n� O °�-� Q R ao O CDQ N N N M O Q a d O a 0 N O co 0 a IN31 L CL r J - im 0 r, C-1. - �7 9 `tz- C) ?:Y- I M r4 F 00E KIN v .4.1 4) OOL Cb ".74 ?r rg 09 .7 t X10 te Iz LOS, T-1 co CN N CN N N — — — — — 0 a o 0 o 0 0 0 0 (YV (1001) UO!JeAQ13 0/ :SL-a-.x- AN` � ��i i i ?:Y- I M r4 F 00E KIN v .4.1 4) OOL Cb ".74 ?r rg 09 .7 t X10 te Iz LOS, T-1 co CN N CN N N — — — — — 0 a o 0 o 0 0 0 0 (YV (1001) UO!JeAQ13 0/ :SL-a-.x- AN` 20-11A, 5,1( -� 41, Y/#_9 - -I '4 V ' oov ri 096 ° u' I 099 009 gas T ti Zg ! S i — - C vs t C-4 099 Ir m iq•� -ts- 009 I L F A Loh Oh IT o9 t? 20-11A, 5,1( -� 41, Y/#_9 - -I '4 V ' oov ri 096 Cross Section I 32900 328.80 328.60 32840 -.0 is, 328.20 - C r2: 328.00 i", a sain� I kfull 32780 327.60- :w v: t V 327.20 v., CC V. 327.00 A Is L 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 E)dsgng Cross Section 2 328.40 y" I�jl 328.20 A.' is 4 320.00 p- is I'M 327.80 4, is 0 .'s. �,h 0 %X, Cross secuo B ankfull n� 327.80 -V i "A -111,111". 2 X Bankfull 'A 327.40 ,.t•,, -7-7,77 `l Is 327.20 327.00 IIIXI J. sl ski i, il is, "J 7 ,Yu.,­ ...... 326.80 �F rl) 0.00 2.00 4.00 6.00 8.00 10.00 IZOO, 1400 WOO 18.00 Existing Cross Section 3 327.30 "'vi 7717 32720 -I- sel 327.10 327.00 V ", K, 326.90 ;:-C Cross Secoon BankfU 326.80 v T7 2�1 3n)dUll 326.70 320.80 k, �Y lhl ;4l, 32850 z 4 32840 W 32830 L-0-00 6.00 10.00 15.00 20.00 26.00 30.00 35.00 40.00 45.00 Fadsting Cross Section 4 328.50 Cross SecUon Bankfull 2 X Bankfull 328.00 327.50 327.00 326.50 Z Q 4 326.00 325.50 %q 325.00 6 324.50 - 324.00 - . ....... f 000 5.00 10.00 15.00 2000 25.00 30.00 35.00 - - - - - - - - - - - Usting Cross Section 6 327.00 7� 326.50 41 TA P 0 t 4 Y: 326.00 t 4 Q Cross Section B nkfu' ankfull tjV? '0 325.50 - u, tW, 2 X Bankfull ',VI ""J, �1,7 47�7 0 325.00 AN't 324.50 M Ti 4 VA V 't 324.00 - 0.00 2.00 4.00 600 8.00 10.00 12.00 14.00 16.00 1800 20.00 ' ° E)dsUng Cross Section 7 ~~~ 77777�T,71_1171 _­11.11,11 If Eidsting Cross Section 8 ft, C =n:r [�2 X �Bankfull W. Pt L-0-00 5.00 10.00 15.00 20.00 2500 30.00 ° ' ~ E)dsflng Cross Section 10 324.00 Crow S 322.00 7 VA 3 Soo i�l St )0 Soo 10.00 15.00 20.00 26.00 Fidsting Cross Section 11 2Xft 11 316.00 - , 1� ; . n 5.00 1000 15.00 20.00 25.00 317.50 lu.uu lZOO 14.00 1800 18.00 20.00 Eidsdng Cross Section 12 yl Eidsdng Cross Section 12 yl ~ ' ~ Fidsting Cross Section 13 ^~~ 313 00 0.00 5.00 10.00 15.00 2000 2500 At .... Fidsting Cross Section 15 E)dstlng Cross Section 14 on on lb 0.00 5.00 10.00 15.00 20.00 25.00 0.00 5.00 10.00 15.00 2000 25.00 30.00 .... Fidsting Cross Section 15 310.00 1� on lb Fidsting Cross Section 15 310.00 1� on lb 0.00 5.00 10.00 15.00 20.00 25.00 F)dstlng Cross Section 16 31000 7- e "Y I 308.00 30600 7777,77 304.00 Cross Section Bankfull 2 X Bankfull 302.00 4, 2L, 7,t 300.00 - 206.00 - f. "0 296.00 - 0.00 2.00 4.00 6.00 8.00 10.00 12.00 1400 1600 18.00 E)dsUng Cross Section 17 A J� "V 7, 77T 77 7— 7 yl 7T 77 F � 30200 1300.00 29600 V 4 29400 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 A J� "V 7, 77T 77 7— 7 yl 7T 77 F � 30200 1300.00 29600 V 4 29400 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00