Loading...
HomeMy WebLinkAbout20020549 Ver 1_Complete File_20020410 STATE OF NORTH CAROLINA DEPARTLVIENT OF TRANSPORTATION MICHAEL F. EASLEY 1584 YANCEYVILLE STREET, GREENSBORO, NC 27415 GOVERNOR April 8, 2002 NC DENR Division of Water Quality 1650 Mail Service Center Raleigh, NC 27699 ATTN: Mr. John Hennessy C Wetlands/401 Unit 020549 Dear Mr. Hennessy: APR 1 0 2002 LYNW TIPPETT SECRETARY SUBJECT: COURTESY COPY - WRITTEN AUTHORIZATION NOT REQUESTED Alamance County, Replacement of one line of 48-inch Corrugated Metal Pipe associated with an Unnamed Tributary to North Prong Stinking Quarter Creek that crosses under NC-62. W.O. # 5.4742. Please find a courtesy copy of a Pre-Construction Notification Application package submitted to the US Army Corps of Engineers in fulfillment of the "Notification" condition for Nationwide Permits 3 and 33. If you have any questions or need any additional information, please contact Dennis Johnson at (336) 375-5589 or Len Smith at (336) 256-2063. Your time and effort are appreciated. Sincerely, Lenwood E. Smith, II, PWS Division Seven Environmental Officer cc: Mrs. Jean Manuele, USACE Ms. Renee Gledhill-Earley, SHPO W. J. Mike Mills, P.E., NCDOT Noll I V6 ?yM hnson, NCDOT df10ld9 5?6Nti113 0 1 80 PHONE 336-334-3192 FAX 336-334-3637 I? STATE OF NORTH CAROLINA DEPARTMENT OF TRANSPORTATION MICHAEL F. EASLEY 1584 YANCEYVILLE STREET, GREENSBORO, NC 27415 LYNDO TIPPETT GOVERNOR SECRETARY April 8, 2002 US Army Corps of Engineers Regulatory Field Office 6508 Falls of the Neuse Road, Suite 105 Raleigh, North Carolina 27615 ATTN.: Mrs. Jean Manuele NCDOT Coordinator SUBJECT: Alamance County, Replacement of one line of 48-inch Corrugated Metal Pipe associated with an Unnamed Tributary to North Prong Stinking Quarter Creek that crosses under NC-62. W.O. # 5.4742. Dear Mrs. Manuele: The North Carolina Department of Transportation (NCDOT) proposes to replace one (1) line of 32- feet long 48-inch Corrugated Metal Pipe with one (1)-line of 60-feet long 87' X 63' Corrugated Metal Pipe Arch under NC-62. The Unnamed Tributary to North Prong Stinking Quarter Creek is located within the Cape Fear River Basin. The existing pipe must replaced due to structural deficiencies. The size of the new pipe must also be larger than that of th ue o increase c e ow the w e . Permanent impacts will result from additional enclosure of 28-linear feet of channel d placement of 40-linear feet (20 linear feet per pipe end) rip rap energy dissipaters above the ordinary high water. Tem in ewateririg device within the stream during the dewatering operation. Temporary dewatering structures will extend a maximum of 20-feet per end (within the confines of the rip-rap energy dissipaters). Within 15 working days of the of the pipe replacement activity all dewatering structures and rock silt screens will be entirely removed and natural stream contours will be restored and seeded. Mitigation is not anticipated, as the impacts to any individual stream do not exceed 150 feet. The project is not located in a High Quality Water. The project will not impact an Essential Fisheries Habitat. No Threatened or Endangered species or habitats were observed during field surveys conducted on April 4, 2001 by Len Smith. Historic compliance work to be scheduled and concurrence with the Historic Preservation Office will be obtained if required. Direct and secondary impacts will be minimized by strict enforcement of Best Management Practices for the protection of PHONE 336-334-3192 FAX 336-334-3637 ®R STATE OF NORTH CAROLINA DEPARTWNT OF TRANSPORTATION MICHAEL F. EASLEY 1584 YANCEYV[LLE STREET, GREENSBORO, NC 27415 LYNDo TIPPETT GOVERNOR SECRETARY surface waters, restrictions against the staging of equipment in or adjacent to waters of the US, and coordination with the Division Environmental Officer. The NCDOT anticipates that the pipe replacement activity will be authorized under Nationwide Permits (NWPs) 3 and 33. This application is intended as a request for formal written authorization from the USACE for activities occurring under NWPs 3 and 33. This application is also intended to notify the Division of Water Quality of activities being conducted under General Water Quality Certificates 3376 (NWP3) and 3366 (NWP33. Enclosed please find the project site map and the pre- construction notification form for the above referenced project. Construction is anticipated to begin as soon as practicable following authorization and take 4 weeks to complete. If you have any questions or need any additional information, please contact Dennis Johnson at (336) 375-5589 or Len Smith at (336) 256-2063. Your time and effort are appreciated. Sincerely, Lenwood E. Smith, II, PWS Division Seven Environmental Officer cc: Mr. John Hennessy, NCDWQ Ms. Renee Gledhill-Earley, SHPO Mr. J. Mike Mills, P.E., NCDOT Mr. Dennis Johnson, NCDOT PHONE 336-334-3192 FAX 336-334-3637 ?.SWFo? STATE OF NORTH CAROLINA DEPART ENT OF TRANSPORTATION MICHAEL F. EAsLEY 1584 YANCEYVILLE STREET, GREENSBORO, NC 27415 LYNw TIPPETT GOVERNOR SECRETARY April 8, 2002 State Historic Preservation Officer Division of Archives History 4617 Mail Service Center Raleigh, NC 27699 CS-52-31-31 ATTN: Ms. Renee Gledhill-Earley Dear Mrs. Gledhill-Earley: SUBJECT: Alamance County, Replacement of one line of 48-inch Corrugated Metal Pipe associated with an Unnamed Tributary to North Prong Stinking Quarter Creek that crosses under NC-62. W.O. # 5.4742. Please find a Pre-Construction Notification Application package attached for you review. If you have any questions or need any additional information, please contact Dennis Johnson at (336) 375- 5589 or Len Smith at (336) 256-2063. Your time and effort are appreciated. Sincerely, Lenwood E. Smith, II, PWS Division Seven Environmental Officer cc: Mrs. Jean Manuele, USACE Mr. John Hennessy, NCDWQ Mr. J. Mike Mills, P.E., NCDOT Mr. Dennis Johnson, NCDOT PHONE 336-334-3192 FAX 336-334-3637 Office Use Only: Form Version October 2001 USACE Action ID No. DWQ No. 0 2 0 5 4 9 If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A" rather than leaving the space blank. 1. Processing Check all of the approval(s) requested for this project: ® Section 404 Permit ? Section 10 Permit ? 401 Water Quality Certification ? Riparian or Watershed Buffer Rules 2. Nationwide, Regional or General Permit Number(s) Requested: NWP 3 and 33 3. If this notification is solely a courtesy copy because written approval for the 401 Certification is not required, check here: 4. If payment into the North Carolina Wetlands Restoration Program (NCWRP) is proposed for mitigation of impacts (see section VIII - Mitigation), check here: ? II. Applicant Information 1. Owner/Applicant Information Name: Mr. J M Mills P E Division Engineer - Division 7 Mailing Address: P.O. Box 14996 Greensboro NC 27415 Telephone Number: (336) 334-3192 Fax Number: (336) 334-3673 E-mail Address: mmillsna dot state nc us 2. Agent Information (A signed and dated copy of the Agent Authorization letter must be attached if the Agent has signatory authority for the owner/applicant.) Name: Mr. Lenwood E. Smith, Il, PWS Company Affiliation: NCDOT - Division 7 Mailing Address: 1584 Yanceyyille Street Greensboro NC 27415 Telephone Number: (336) 256-2063 Fax Number: (336) 334-4149 E-mail Address: lesmith@dot.state.nc.us Pagel of 8 III. Project Information Attach a vicinity map clearly showing the location of the property with respect to local landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property boundaries and development plans in relation to surrounding properties. Both the vicinity map and site plan must include a scale and north arrow. The specific footprints of all buildings, impervious surfaces, or other facilities must be included. If possible, the maps and plans should include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion, so long as the property is clearly defined. For administrative and distribution purposes, the USACE requires information to be submitted on sheets no larger than 11 by 17-inch format; however, DWQ may accept paperwork of any size. DWQ prefers full-size construction drawings rather than a sequential sheet version of the full-size plans. If full-size plans are reduced to a small scale such that the final version is illegible, the applicant will be informed that the project has been placed on hold until decipherable maps are provided. 1. Name of project: Replacement of one line of 48-inch Corrugated Metal Pipe associated with an Unnamed Tributary to North Prong, Stinking _Quarter Creek that crosses under NC-62. 2. T.I.P. Project Number or State Project Number (NCDOT Only):5.4742 (non-TIP) 3. Property Identification Number (Tax PIN): N/A 4. Location County: Alamance Nearest Town: Burlington Subdivision name (include phase/lot number): N/A Directions to site (include road numbers, landmarks, etc.): The project is located southwest of Burlington on Highway NC-62. The pipe being replaced is the last pipe encountered on NC-62 prior to entering Guilford County. 5. Site coordinates, if available (UTM or Lat/Long): See the attached USGS map. (Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) 6. Describe the existing land use or condition of the site at the time of this application: Residential with a forested buffer near the pipe. 7. Property size (acres): N/A 8. Nearest body of water (stream/river/sound/ocean/lake): UT to North Prong Stinking Quarter Creek. 9. River Basin: Cape Fear (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.) Page 2 of 8 10. Describe the purpose of the proposed work: To replace a structurally deficient pipe located under NC-62. 11. List the type of equipment to be used to construct the project: Road construction equipment (trackhoe grader, backhoe and bulldozer). 12. Describe the land use in the vicinity of this project: Residential IV. Prior Project History If jurisdictional determinations and/or permits have been requested and/or obtained for this project (including all prior phases of the same subdivision) in the past, please explain. Include the USACE Action ID Number, DWQ Project Number, application date, and date permits and certifications were issued or withdrawn. Provide photocopies of previously issued permits, certifications or other useful information. Describe previously approved wetland, stream and buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project, list and describe permits issued for prior segments of the same T.I.P. project, along with construction schedules. V. Future Project Plans Are any additional permit requests anticipated for this project in the future? If so, describe the anticipated work, and provide justification for the exclusion of this work from the current application: VI. Proposed Impacts to Waters of the United States/Waters of the State It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to wetlands, open water, and stream channels associated with the project. The applicant must also provide justification for these impacts in Section VII below. All proposed impacts, permanent and temporary, must be listed herein, and must be clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) must be shown on a delineation map, whether or not impacts are proposed to these systems. Wetland and stream evaluation and delineation forms should be included as appropriate. Photographs may be included at the applicant's discretion. If this proposed impact is strictly for wetland or stream mitigation, list and describe the impact in Section VIII below. If additional space is needed for listing or description, please attach a separate sheet. Page 3 of 8 1. Wetland Impacts Wetland Impact Site Number (indicate on ma Type of Impact* Area of Impact acres Located within 100-year Floodplain** es/no Distance to Nearest Stream linear feet Type of Wetland*** N/A * List each impact separately and identify temporary impacts. Impacts include, but are not limited to: mechanized clearing, grading, till, excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding. ** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps (FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or online at http://w"v1v. fema.„ov. *** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond, Carolina Bay, bog, etc.) List the total acreage (estimated) of existing wetlands on the property: N/A Total area of wetland impact proposed: N/A 2. Stream Impacts, including all intermittent and perennial streams Stream Impact Site Number indicate on ma Type of Impact* Length of Impact linear feet Stream Name** Average Width of Stream Before Impact Perennial or Intermittent? leasespecify) NC-62 pipe Pipe replacement 28(en) 20(tmp) 40 UT to North Prong Stinking Quarter Creek 5' Perennial * List each impact separately and identify temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap, dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net loss/gain), stabilization activities (cement wall, rip-rap, crib wall, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included ** Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest downstream named stream into which it flows. USGS maps are available through the USGS at 1-800-358-9616, or online at xvw%v.usas.sov. Several internet sites also allow direct download and printing of USGS traps (e.g., N%,%,.tiv.toWzone.com, NvNvw.mapguest.cont, etc.). Cumulative impacts (linear distance in feet) to all streams on site: 28 - enclosure (en), 20 - temporary (tmp 40 - rip rap (rp) Page 4 of 8 3. Open Water Impacts, including Lakes, Ponds, Estuaries, Sounds, Atlantic Ocean and any other Water of the U.S. Open Water Impact Site Number indicate on ma Type of Impact* Area of Impact acres ) Name Waterbody (if applicable) Type of Waterbody (lake, pond, estuary, sound, bay, ocean, etc. N/A * List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging, flooding, drainage, bulkheads, etc. 4. Pond Creation If construction of a pond is proposed, associated wetland and stream impacts should be included above in the wetland and stream impact"'sections. Also, the proposed pond should be described here and illustrated on any maps included with this application. Pond to be created in (check all that apply): ? uplands ? stream ? wetlands Describe the method of construction (e.g., dam/embankment, excavation, installation of draw-down valve or spillway, etc.): N/A Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): N/A Size of watershed draining to pond: N/A Expected pond surface area: N/A VII. Impact Justification (Avoidance and Minimization) Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide information related to site constraints such as topography, building ordinances, accessibility, and financial viability of the project. The applicant may attach drawings of alternative, lower-impact site layouts, and explain why these design options were not feasible. Also discuss how impacts were minimized once the desired site plan was developed. If applicable, discuss construction techniques to be followed during construction to reduce impacts. The structurally deficient pipe must be replaced to insure the safety of t the traveling public. Impacts will be minimized by strict enforcement of Best Management Practices for the protection of wetland and surface waters restrictions against the staging of equipment in or adjacent to waters of the US and coordination with the Division Environmental Officer. VIII. Mitigation DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC Division of Water Quality for projects involving greater than or equal to one acre of impacts to freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial streams. Page 5 of 8 USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide Permits, published in the Federal Register on March 9, 2000, mitigation will be required when necessary to ensure that adverse effects to the aquatic environment are minimal. Factors including size and type of proposed impact and function and relative value of the impacted aquatic resource will be considered in determining acceptability of appropriate and practicable mitigation as proposed. Examples of mitigation that may be appropriate and practicable include, but are not limited to: reducing the size of the project; establishing and maintaining wetland and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of aquatic resource functions and values by creating, restoring, enhancing, or preserving similar functions and values, preferable in the same watershed. If mitigation is required for this project, a copy of the mitigation plan must be attached in order for USACE or DWQ to consider the application complete for processing. Any application lacking a required mitigation plan or NCWRP concurrence shall be placed on hold as incomplete. An applicant may also choose to review the current guidelines for stream restoration in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at http://h2o.enr.state.nc.us/ncwetlands/strmgide.htmi. 1. Provide a brief description of the proposed mitigation plan. The description should provide as much information as possible, including, but not limited to: site location (attach directions and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet) of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view, preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a description of the current site conditions and proposed method of construction. Please attach a separate sheet if more space is needed. A finding of insignificant impact is anticipated Cumulative impacts are less than 150 feet. The maximum amount of impact to a single stream is 68 linear feet. No Outstanding Resource Waters federally protected species or their habitats or essential fishery habitats occur in the project area The project is not located in a High Quality Water. 2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration Program (NCWRP) with the NCWRP's written agreement. Check the box indicating that you would like to pay into the NCWRP. Please note that payment into the NCWRP must be reviewed and approved before it can be used to satisfy mitigation requirements. Applicants will be notified early in the review process by the 401/Wetlands Unit if payment into the NCWRP is available as an option. For additional information regarding the application process for the NCWRP, check the NCWRP website at Mtn://h2o.enr.state.nc.us?%NTy/indcx.litm. If use of the NCWRP is proposed, please check the appropriate box on page three and provide the following information: Amount of stream mitigation requested (linear feet): N/A Amount of buffer mitigation requested (square feet): N/A Amount of Riparian wetland mitigation requested (acres): N/A Amount of Non-riparian wetland mitigation requested (acres): N/A Amount of Coastal wetland mitigation requested (acres): N/A Page 6 of 8 IX. Environmental Documentation (DWQ Only) Does the project involve an expenditure of public funds or the use of public (federal/state/local) land? Yes ® No ? If yes, does the project require preparation of an environmental document pursuant to the requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)? Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA coordinator at (919) 733-5083 to review current thresholds for environmental documentation. Yes ? No If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a copy of the NEPA or SEPA final approval letter. Yes ? No ? X. Proposed Impacts on Riparian and Watershed Buffers (DWQ Only) It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to required state and local buffers associated with the project. The applicant must also provide justification for these impacts in Section VII above. All proposed impacts must be listed herein, and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ Regional Office may be included as appropriate. Photographs may also be included at the applicant's discretion. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233 (Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify N/A )? Yes ? No ® If you answered "yes", provide the following information: Identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer mitigation is required calculate the required amount of mitigation by applying the buffer multipliers. Zone* (Impact square feet) Multiplier Mitigation 1 3 2 1.5 Total Lone I extends out .w teet perpenaicuiar trom near oanK or cnannei; 1-vne Z extenus all additional 20 feet from the edge of Zone 1. Page 7 of 8 If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or .0260. N/A X1. Stormwater (DWQ Only) Describe impervious acreage (both existing and proposed) versus total acreage on the :site. Discuss stormwater controls proposed in order to protect surface waters and wetlands downstream from the property. In accordance with the February 25, 1991 delegation agreement one copy of the sediment and erosion control plan will be submitted to DENR - Division of Land Resources and NCDOT Roadside Environmental Prior to construction. XII. Sewage Disposal (DWQ Only) 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. XIII. Violations (DWQ Only) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules? Yes ? No ? Is this an after-the-fact permit application? Yes ? No ? XIV. Other Circumstances (Optional): It is the applicant's responsibility to submit the application sufficiently in advance of desired construction dates to allow processing time for these permits. However, an applicant may choose to list constraints associated with construction or sequencing that may impose limits on work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and Threatened Species, accessibility problems, or other issues outside of the applicant's control). 6 ?/y-) 4fll cy ti Applicant/Agenfs Signature ' /,-- Dafe (Agent's signature is valid only if an authorization letter from the applicant is provided.) Page 8 of 8 NCDOT HAZARDOUS SPILL BASIN CHECKLIST Division Seven County Alamance Project ID: 5.4742 River Basin Cape Fear Bridge No: N/A Route NC-62 StreamNorth Prong Stinking1 Quarter Creek Water Quality Criteria Yes No Stream Crossing Blueline on USGS Z ? ORW ? WSI ? WS II, III, or IV Crossing Within 0.5 mi. of W.S. Critical Area ? Roadway Criteria Route Designation Additional Site Information: Yes No Arterial Urban ? Arterial Rural Z ? Yes No Is a Hazardous Spill Basin Required? ? Criteria Based Upon NCDOT "Best Management Practices for the Protection of Surface Waters" (March, 1997). UII C,T.. 'c '\ !`\ J?+.. '/(j \ \ - t t ?\ 1131 Q \??? - •667^. Ir - 1 - ?wy.? _ lli?-.?, -,_I\_ 1 --A??3 j a ?ti\ \?. ??1if: _ '_0 6so .•a ?' \,?, •?` / 'i`ce <3%4? ? ?`Z\'? ? ? , -- / - J?` J.\?\\ ? ? ? J? \ ...? - ?,?i ?, fit. •42 + \. \/{r ? \??,,..? v \ n ? 62 C a• - C i so. - i Q s ` J'A Cam= • 1NC-62 Non-inventor coo ' .677 1 ((?? \11?_ t \_. _ ?_ : _''....rNC?t \ \ J! r ``\ ?+ I I I 'rJ % I• ? /?? ? I C ?`?J ??\ \ V % J ,-i -- 1`51 ? I. \\ `j ?., r \ ?•'`? ? 311E -. l,./?•% /. ?\. ? I ?.-?? :r?Jt ?-? ? \ \t? / i \`,? ? ?? ? Ili/,??f;tl?,? 1??.? i • ??• I ?\\.-\ 1 -%?^-? ? {,// ter' ?`r \ (?`` _I >? ? / ,•' .. (' `?\J ? ' LAI) 8* w Name: KIMESVILLE Location: 17 631744 E 3984438 N Date: 4/5/2002 Caption: Location of the Non-inventory pipe located on NC-62 Scale: 1 inch equals 2000 feet (c) 1997, April 8, 2002 Site NC-62 Non-inventory pipe Construction Sequence and Erosion Control Plan for Replacement of Pipe with Pipe Using a Pump Around - Alamance County, NC-62 Work to begin as soon as practicable following authorization. Construction is anticipated to take 4 weeks. 1. Install a rock silt dam downstream of the work area to prevent incidental sediment loss. 2. Install ABC aggregate or a less intrusive dewatering device to allow dewatering of the work area. 3. Install pumps to divert flow around the work area. 4. Remove one existing line of 32' long 48" CM pipe. 5. Excavate to sufficient depth to allow burial of the pipe to 1', place bas e stone, and single line of 60' long 87" X 63" CM pipe arch. 6. Backfill the new line of pipe and place rip rap only as needed. 7. Starting from the downstream end, remove the dewatering structure and restore the natural stream contours. 8. Notify landscape department for final seeding. 9. Silt fences to be placed as site conditions require. 10. A 10' X 15' dirt bag will be used to remove excess water in the hole where the new pipe is being replaced. 11. Site conditions and weather may alter these plans. 12. A method less intrusive than a pump around system may be utilized if site conditions allow. cn r MO ? --? %as cn a r n, 0 O O M ;u Z a 5; m > ;u ?0 Oy d0 J O C C y O Z cn ;u r ?C: z 03 Z m View immediately upstream of the existing pipe. MOTE: Natural Trade control structure in background. View of the existing pipe inlet. View of the existing pipe outlet. View immediately downstream of the existing pipe.