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HomeMy WebLinkAbout20130687 Ver 1_401 Application_20130713KqUINOX RONMENTAL (6- tOM0M • Ot fO ►fAf1 NOM 2013068t 7.02.13 The following application is a co- application for New Belgium Brewery and the City of Asheville for the development of New Belgium Brewing's: East Coast Brewery. The project includes improvements by the City of Asheville which include road improvements to Craven Street, a greenway along the French Broad River, Stream Restoration and Stormwater BMPs. This application is for those improvements to be made by the City of Asheville. There are no anticipated impacts on waters of the US from the development of the site by New Belgium. Included in this application are the following: • U.S. Army Corps of Engineers Application for Department of The Army Permit • Supporting Calculations • Maps & Plans • Wetland Delineation • Stream Delineation • Greenway Plans • Stream Plan and Profile • Grade Control Structure and Wetland Impacts • Greenway Trail and Wetland Impacts o Arch Culvert and Stream Channel Treatment • New Belgium Agent Authorization Letter • City of Asheville Agent Authorization Letter New Belgium Brewing 500 Linden Street Fort Collins, CO 80524 City of Asheville Public Works Building 161 S. Charlotte Street Asheville, NC 28801 �David Tuch- President [1@110169=1 L5 JUi 5 2013 Equinox Environmentel Consultation and Design, Inc. 37 Haywood Street, Suite 100, Asheville NC 28801 828.253.6856 www.equinoxenvironmental.com O- WA T_" oa OG Office Use Only: Corps action ID no. ti o < DWQ protect no 1. Processing Form Version 1.3 Dec 10 2008 Pre - Construction Notification (PCN) Form A. Applicant Information 1. Processing 1 a. Type(s) of approval sought from the Corps: ®Section 404 Permit El Section 10 Permit 1 b. Specify Nationwide Permit (NWP) number: 27 & 39 or General Permit (GP) number: 1c. Has the NWP or GP number been verified by the Corps? ® Yes ❑ No 1d. 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 le. 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 1h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ❑ Yes ® No 2. Project Information 2a. Name of project: Craven Street Improvements - New Belgium Brewery 2b. County: Buncombe 2c. Nearest municipality / town- Asheville 2d. Subdivision name: 2e. NCDOT only, T I.P. or state project no: 3. Owner Information 3a. Name(s) on Recorded Deed. Kimberly Beth Jordan and Christine Nicole Perich 3b. Deed Book and Page No. New Belgium Site — 5008/1972 3c. Responsible Party (for LLC if applicable): New Belgium Brewing Company Inc. & City of Asheville 3d. Street address: 500 Linden Street 3e. City, state, zip: Fort Collins, CO 80524 3f. Telephone no.: 3g. Fax no.. 3h. Email address KJordan @newbelgium.com Page 1 of 12 PCN Form — Version 1.3 December 10, 2008 Version 4. Applicant Information (if different from owner) 4a. Applicant is: ® Agent ❑ Other, specify: 4b. Name: McCray Coates 4c. Business name (if applicable): City of Asheville 4d. Street address: Public Works Building, 161 S. Charlotte Street 4e. City, state, zip: Asheville, NC 28801 4f. Telephone no.. 828 - 259 -5935 4g. Fax no.. 4h. Email address: mcoates @ashevillenc.gov 5. Agent/Consultant Information (if applicable) 5a. Name: David Tuch 5b. Business name (if applicable): Equinox Environmental Consultation and Design, Inc. 5c. Street address: 37 Haywood Street 5d. City, state, zip: Asheville, NC 28801 5e. Telephone no.: 828 - 2536856 5f. Fax no.: 5g. Email address: david @equinoxenvironmental.com Page 2 of 12 B. Project Information and Prior Project History 1. Property Identification 1a. Property identification no. (tax PIN or parcel ID): 9638 -87 -3707 1b. Site coordinates (in decimal degrees) Latitude: 35.587810 Longitude: - 82.572626 (DD.DDDDDD) ( -DD DDDDDD) 1c Property size. 18.99 acres 2. Surface Waters 2a. Name of nearest body of water (stream, river, etc.) to French Broad River proposed project. 2b. Water Quality Classification of nearest receiving water: B- Primary Recreation, Freshwater 2c. River basin: map is available at French Broad River hftp://h2o.enr.state.nc.us/admin/maps/ 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 proposed site is located within Asheville City Limits adjacent to the French Broad River. Topographically, most of the site consists of a large flat, impervious area recently cleared of warehouse structures. The eastern boundary of the parcel slopes down to the French Broad River, where the riparian corridor is forested. One perennial stream bisects the center and one perennial stream intersects the southeastern comer of the property. The National Land Cover Dataset (2006) classifies the site as a mixture of low to high intensity development, deciduous forest, and developed open space. 3b. List the total estimated acreage of all existing wetlands on the property: 0.25 acres 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 789 ft. 3d. Explain the purpose of the proposed project. See Supplemental Information 3e. Describe the overall project in detail, including the type of equipment to be used: See Supplemental Information Page 3 of 12 PCN Form — Version 1.3 December 10, 2008 Version 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? Comments. A jurisdictional Stream Determination has been ® Yes ❑ No ❑ Unknown performed as well as a wetland delineation by Equinox Environmental Consultation & Design, Inc. which has been reviewed by the local US Army Corps of Engineers - Tasha McCormick 4b. If the Corps made the jurisdictional determination, what type Preliminary ❑Final of determination was made? 4c. If yes, who delineated the jurisdictional areas? Agency /Consultant Company: Equinox Environmental Name (if known): Hunter Terrell Consulation and Design, Inc. Other: 4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation. Met with Tasha McCormick of the Corps and Tim Fox of NCDENR for a site review of the wetland delineation (May 2013) and a jurisdictional determination of the stream (Fall 2012). 5. Project History 5a. Have permits or certifications been requested or obtained for [:]Yes ❑ No ® Unknown this project (including all prior phases) in the past? 5b. If yes, explain in detail according to "help file" instructions. ,6. Future Project Plans 6a. Is this a phased project? ® Yes ❑ No 6b. If yes, explain. This is a joint venture project between the City of Asheville and New Belgium Brewing. As a first phase the City of Asheville will start constn�stwn on improvements to Craven Street, the greenway along the French Broad River, and the stream restoration. The stream restoration will be constructed in two phases. The first phase will include the arch culvert and the stream channel. The upland areas will be temporarily seeded until New Belgium is nearing completion with the construction of the site including parking areas, buildings and stormwater BMPs. At this time the upland areas will be planted with native bottomland hardwood forest species. The New Belgium site development will include two pedestrian bridges that completely span the stream and will have footings placed outside of the stream channel and top of bank. Page 4 of 12 C. Proposed Impacts Inventory 1. Impacts Summary 1a. Which sections were completed below for your project (check all that apply): ® Wetlands ® Streams - tributaries ❑ Buffers ❑ Open Waters ❑ Pond Construction 2. Wetland Impacts If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted. 2a. 2b. 2c. 2d. 2e. 2f. Wetland impact Type of jurisdiction number — Type of impact Type of wetland Forested (Corps - 404, 10 Area of impact Permanent (P) or (if known) DWQ — non -404, other) (acres) Temporary T W1 ®P ❑ T Fill Bottomland ® Yes ® Corps 0.06 Hardwood Forest ❑ No ❑ DWQ W2 ® P ❑ T Excavation Non -Tidal ❑ Yes ® Corps 0.03 Freshwater Marsh ® 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 ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ 2g. Total wetland impacts 0.09 2h. Comments: Wetland impacts will occur in both wetlands on site (see Stream and Wetland Delineation map). Wetland impacts include fill for a 10' wide greenway trail (Wetland 1) and excavation for a grade control structure (Wetland 2) as part of the stream restoration. 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. 3b. 3c. 3d. 3e. 3f. 3g. Stream impact Type of impact Stream name Perennial Type of jurisdiction Average Impact number - (PER) or (Corps - 404, 10 stream length Permanent (P) or intermittent DWQ — non -404, width (linear Temporary (T) (INT)? other) (feet) feet) Unnamed S1 ®P ❑ T Replace Culvert Tributary to ® PER ® Corps 9,4 67.5 with Arch Culvert French Broad ❑ INT ® DWQ River Unnamed S2 ®P ❑ T Arch Culvert Tributary to French Broad ® PER ❑ INT ® Corps ❑ DWQ 9.4 278 River Unnamed S3 ®P ❑ T Restoration Tributary to French Broad ® PER []INT ® Corps ❑ DWQ 9.4 369 River S4 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S5 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ Page 5 of 12 S6 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ 3h. Total stream and tributary impacts 714.5 3i. Comments: Stream impacts will be limited to Stream 1 (see Stream and Wetland Delineation map). Impacts to this stream include a section where the existing round culvert will be replaced with an arch culvert, a section where an arch culvert will be constructed over the stream, and a section where the stream channel will be restored. 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 indiv" ually list all open water impacts below. 4a. 4b. 4c. 4d. 4e. Open water Name of waterbody impact number — (if applicable) Type of impact Waterbody type Area of impact (acres) Permanent (P) or Temporary T 01 ❑P ❑T 02 ❑P ❑T 03 ❑P 04 ❑P 0. Total open water impacts 4g. Comments: 5. Pond or Lake Construction If pond or lake construction proposed, then complete the chart below. 5a. 5b. 5c. 5d. 5e. Wetland Impacts (acres) Stream Impacts (feet) Upland Pond ID Proposed use or purpose (acres) number of pond Flooded Filled Excavated Flooded Filled Excavated Flooded P1 P2 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: Page 6 of 12 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. ❑ Neuse ❑ Tar - Pamlico ❑ Other: Project is in which protected basin? ❑ Catawba ❑ Randleman 6b. 6c. 6d. 6e. 6f. 6g. Buffer impact number — Reason Buffer Zone 1 impact Zone 2 impact Permanent (P) or for Stream name mitigation (square feet) (square feet) Temporary T im act required? 61 ❑P ❑T El Yes ❑ No B2 ❑P ❑T E] Yes ❑ No B3 ❑ P ❑ T ❑ Yes ❑ No 6h. Total buffer Impacts 6i. Comments. Page 7 of 12 D. Impact Justification and Mitigation 1. Avoidance and Minimization 1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project. See Supplemental b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. See Supplemental 2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State 2a. Does the project require Compensatory Mitigation for impacts to Waters of the U.S. or Waters of the State? ❑ Yes ® No 2b. If yes, mitigation is required by (check all that apply): ❑ DWQ ❑ Corps 2c. If yes, which mitigation option will be used for this project? ❑ Mitigation bank El Payment to in -lieu fee program ❑ Permittee Responsible Mitigation 3. Complete if Using a Mitigation Bank 3a. Name of Mitigation Bank. 3b. Credits Purchased (attach receipt and letter) Type Quantity 3c. Comments: 4. Complete if Making a Payment to In -lieu Fee Program 4a. Approval letter from in -lieu fee program is attached. ❑ Yes 4b. Stream mitigation requested: linear feet 4c. If using stream mitigation, stream temperature: ❑ warm ❑ cool ❑cold 4d. Buffer mitigation requested (DWQ only): square feet 4e. Riparian wetland mitigation requested: acres 4f. Non - riparian wetland mitigation requested: acres 4g. Coastal (tidal) wetland mitigation requested. acres 4h. Comments. Page 8 of 12 PCN Form — Version 1.3 December 10, 2008 Version 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. 6. Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ 6a. Will the project result in an impact within a protected riparian buffer that requires buffer mitigation? If you will have to fill out this entire form — please contact the State for more information. El Yes ® No 6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the amount of mitigation required. Zone 6c. Reason for impact 6d. Total impact (square feet) Multiplier 6e. Required mitigation (square feet) Zone 1 3 (2 for Catawba) Zone 2 1.5 6f. Total buffer mitigation required: 6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank, permittee responsible riparian buffer restoration, payment into an approved in -lieu fee fund). 6h. Comments. Page 9 of 12 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 ❑ Yes ® No within one of the NC Riparian Buffer Protection Rules? 1b. If yes, then is a diffuse flow plan included? If no, explain why. ❑Yes No ❑ Comments: 2. Stormwater Management Plan 2a. What is the overall percent imperviousness of this project ? _6% 2b. Does this project require a Stormwater Management Plan? ❑ Yes ® No 2c. If this project DOES NOT require a Stormwater Management Plan, explain why: The site is reducing overall impervious cover by 6 %. 2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan: ® Certified Local Government 2e. Who will be responsible for the review of the Stormwater Management Plan? ❑ DWQ Stormwater Program ❑ DWQ 401 Unit 3. Certified Local Government Stormwater Review 3a. In which local government's jurisdiction is this project? City of Asheville ❑ Phase II 3b. Which of the following locally- implemented stormwater management programs ❑ NSW ❑ USMP apply (check all that apply). ❑ 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 ❑ HQW 4a. Which of the following state - implemented stormwater management programs apply ❑ 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 10 of 12 PCN Form — Version 1.3 December 10, 2008 Version F. Supplementary Information 1. Environmental Documentation (DWQ Requirement) 1a. 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. Page 11 of 12 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? El 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? Most recent N.C. Natural Heritage Element Occurrence Database; USFWS Critical Habitat Web Portal (hftp://criticalhabitat.fws.gov/crithab/) 6. Essential Fish Habitat (Corps Requirement) 6a. Will this project occur in or near an area designated as essential fish habitat? TO Yes ® No 6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat? NOAA- National Marine Fisheries Service Essential Fish Habitat Mapper V 3.0 htt : / /www.habitat.noaa. ov/ rotection/efh/habitatma gr.html 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? State Historic Preservation Office -HPO Web (http: / /gis.ncdcr.gov /hpoweb /); 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. A No -Rise Certification Report has been prepared with supporting hydraulic analysis, in accordance with NC Emergency Management National Flood Insurance Program guidelines, and has been submitted to NCDPS officials for review. 8c. What source(s) did you use to make the floodplain determination? NCDPS Floodplain Mapping Program data, and FEMA Flood Map Panels were used in assembling floodplain data for design determination. David Tuch / � � i- i � 7.02.13 Applicant/Agent's Printed Name Date Applicant/Agent's Signature (Agent's signature is valid only if an authorization letter from the applicant is rovided. Page 12 of 12 SUPPLEMENTAL Section B 3d. Project Purpose (Describe the reason or purpose of the project). The purpose of the project improvements for the New Belgium Brewing: East Coast Brewery is based on a partnership with the City of Asheville and New Belgium Brewing. As part of this partnership the City of Asheville has agreed to make improvements to the site as part of an incentive package to help attract New Belgium Brewing to Asheville. In return New Belgium is developing the site which includes a beer production facility and tasting room. This project is estimated to create 154 local jobs to operate the facility. The construction of the facility is estimated to support 1,252 jobs over a seven year period, pumping an estimated $41 million into the community, as estimated by the Asheville Chamber of Commerce. The project is seen as a major economic development catalyst for the River Arts District and will have significant benefits to the overall community and the revitalization of the riverfront as part of the Wilma Dykeman RiverWay. Both the City of Asheville and New Belgium Brewing have a goal of developing the site in a sustainable manner. As such, the improvements to the site that the City of Asheville is providing include stormwater improvements and a greenway. The stormwater improvements are part of a larger project and are being considered by the City of Asheville as a regional stormwater project. There are three major aspects of this regional stormwater project: 1. Watershed Improvements- The City of Asheville is looking to improve water quality and address sedimentation issues upstream of the New Belgium property prior to water entering the New Belgium site & the French Broad River. 2. Craven Street Improvements- The City of Asheville is looking to address water quality along Craven Street (porous pavers or porous concrete and bio- retention), the stream within the New Belgium property, and a parking area which will include stormwater BMPs (Low Impact Parking Lot) 3. New Belgium Site- New Belgium Brewing is looking to implement water quality within their site including stormwater BMPs such as constructed wetlands, bio- retention areas, bio- swales, and rainwater collection. The purpose of the stream restoration is to improve the conditions of the unnamed tributary that flows through the site before emptying into the French Broad River. The stream has been manipulated overtime and is currently exhibiting low ecological value as an aquatic system. In fact, water flow is subsurface and one of the goals is to re- establish base flow where it currently does not occur. To improve the stream and not impact the existing wetland above Craven Street, a grade control structure will be constructed to maintain the original elevation of Wetland 2 (See Wetland and Stream Delineation Map) improving water quality downstream of the structure. To accommodate the programming needs of the site for New Belgium Brewing, an arch culvert to help meet the parking requirements for the site is also planned to be constructed. As well, an arch culvert is proposed for Craven Street in which an existing culvert is located. The City of Asheville will construct the arch culvert under Craven Street and New Belgium Brewing will construct the arch culvert within the site. As part of this project a greenway will also be constructed by the City of Asheville to provide a key connection to the larger greenway system in Asheville for alternative transportation, recreation, and health benefits to the community. This greenway section will provide a critical link to the progress energy corridor to the south linking to the French Broad River Park and will be part of a loop that will connect to the east side of the river and the Wilma Dykeman RiverWay. It will also include a connection to the West Asheville community. The approximate dates for construction are September 2013 - September 2014 for the improvements identified above. The greenway will rely on coordination with the Metropolitan Sewerage District (MSD) and the stream restoration is proposed to be built in phases. Phase one of the stream restoration will include the arch culvert and the stream channel including all of the in- stream structures. The areas beyond the stream channel will be temporarily seeded and used for temporary diversion ditches. When the work within the site is nearing completion the grading and final planting for the areas between the stream channel and the New Belgium site will be graded and planted with native vegetation. The site work is scheduled to be completed by December 2014. 3e. Describe the overall project in detail, including the type of equipment to be used The greenway is a 10' asphalt paved trail that will be located on an existing bench within the existing MSD sewer easement. There will be a trailhead located at the terminus of the trail at the north end of the site across from Craven Street. There are two unnamed tributaries which the greenway will cross. Stream 2, closest to Haywood Road, will be spanned with an arch culvert. Stream 1, that bisects the New Belgium site, will be crossed with a bridge and abutments outside of the top of bank will be used to support the bridge. The span of the arch culvert and the footings are more than 2 %Z times bank full width which on average is 9.4 feet and above the ordinary high water mark. The greenway plans provided indicate grading and structures to be constructed including crossings and retaining walls. The overall length of the greenway is 2,316 linear feet. The stream restoration includes 369 linear feet. In addition, an arch culvert will be used to span the stream for 278 linear feet, approximately 67.5 linear feet of which will be replacement of the existing culvert with a bottomless arch culvert. A grade control structure will be constructed before the stream flows under Craven Street into the arch culvert. This grade control structure will limit the impacts to the existing wetland while also allowing the necessary gradient for the stream as it flows under Craven Street. At Craven Street the existing culvert which is essentially silted in will be replaced with an arch culvert. The arch culvert will include footers and the stream channel will include a linear to keep the base flow from going subsurface. Appropriately sized rock, as well as concrete baffles to deter movement will also be placed within the channel through the section of the arch culvert. Once the stream flows through the arch culvert it will enter a restored section of stream. The stream will be designed as a threshold channel with Type B morphology and an immobile bed constructed of natural river cobble. The design includes in- stream structures to create a riffle pool system and grade control structures using natural stone boulders. A low rock wall will be constructed at the back of the floodplain bench. Above the bench the slope will be graded and when needed, retaining walls will be used to step up the slope with terraces to meet the grade of the New Belgium site. Native plants will be used to revegetate the banks and provide habitat and shade along the stream. For construction of the greenway a motor grader, mini track hoe, and bobcat will be the primary equipment used to construct the trail. The limits of disturbance will be flagged to avoid unnecessary impacts to the wetland. The stream will be constructed from the top down with the arch culvert installed first and progressing downstream. A track hoe will be used for the stream channel construction activities. Section D la. Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project. The City of Asheville and New Belgium Brewing are focused on creating a model for sustainable commercial development and have taken steps to minimize and avoid impacts to jurisdictional waters. In fact, the stormwater BMPs that will be used by the City of Asheville and New Belgium Brewing show their commitment to being sensitive to the environment since many of the stormwater BMPS are not required as there not an increase in impervious cover as a result of the project. The project has been designed to avoid impacts to wetlands and streams whenever possible. The wetlands on the property are located along the floodway near Haywood Road and immediately above the site on the southwest side of Craven Street. The wetland along the floodway is located where the greenway passes. Impacts could not be avoided as the trail surface needs to be designed to accommodate a 60,000 lbs. pound Metropolitan Sewerage District (MSD) vehicle to access the line and manholes. To attempt to avoid this wetland impact and meet the design criteria for the trail would require excessive cost to build a trail that has the structural integrity to accommodate such a weight. In addition, the agreement that MSD and the City of Asheville have for allowing greenways within their MSD sewer easement states that "no structures, including footings, are allowed in MSD easement areas ". A boardwalk system to span a wetland is considered a structure by MSD. Wetland 2, located near the southwest boundary of the parcel along Craven Street, has been created due to sediment that has accumulated in the culvert passing under Craven Street. This blockage in essence is serving as a dam that backs water up above the road and has created the conditions for the wetland. Impacts to the wetland in this location are minimized by utilizing a grade control structure. If a grade control structure was not used the wetland area would need to be re- graded to connect to the stream that passes under Craven Street. If such grading were to occur it would change the hydrology and drain the wetland. The grade control structure prevents draining the wetland and allows the stream restoration on the New Belgium property to create the longitudinal grade necessary for the stream restoration. Avoidance and minimization of impacts to the unnamed tributary that flows under Craven Street through and existing culvert is a significant part of this project. A portion of this stream will be restored while another section will be spanned with a bottomless arch culvert. At the onset of the design it was thought that the entire stream would be piped. However, the design team representing both New Belgium Brewing and the City of Asheville was able to meet the design needs and program elements of the site (providing the necessary parking requirements) while also enhancing the degraded stream through restoration. As the unnamed tributary enters the site the existing culvert will be replaced with a bottomless arch culvert. The arch culvert will then be extended to span the stream and provide employee parking above the stream. Beyond this section the stream will be restored. 1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. During the construction of the greenway the limits of disturbance will be flagged by the surveyor and sediment fencing will be used to minimize impacts. The stream will include temporary diversion of stormwater off the banks of the stream during construction. As well sediment fencing will be used to minimize sediment from reaching the stream channel. SAMPLE AGENT AUTHORIZATION FORM PROPERTY LEGAL DESCRIPTION: p LOT NO. PLAN NO. PARCEL ID: -103- 81- 3'702 STREET ADDRESS: Z-( D cl ! C i2A Please print: Property Owner. _ N CW FSG I-G l u M nsy�7 i �.3G1 COW'" IF 1 NG , Property Owner: The undersigned, registered property owners of the above noted property, do hereby authorize -IM—A l D 1.1- � . of ti CQ 0(r.CV- la3V tQQ*4MGl1XkL (Contractor / Agent) (Name of consulting firm) GC1.3WLTAT1dJ &bE5W )IVG. to act on my behalf and take all actions necessary for the processing, Issuance and acceptance of this permit or certiflcation and any and all standard and special conditions attached. Property Owner's Address (If different than property above): 500 LINDG'ti1 �T. �h =�Z.t Cot.0 -aNS AGO 8d Z`-r Telephone: CIO . Li Iq , 4l 3 We hereby certify the above Information submitted in this application Is true and accurate to the best of our knowledge. A -( 2 I C PkA�! 0 San/ G- -6rvL'-,'eAt. MANA-66C, 4JAt6v't-CF rized Signature Authorized Signature Date: Lo , j U N- 2 a 13 Date: SAMPLE AGENT AUTHORIZATION FORM PROPERTY LEGAL DESCRIPTION: LOT NO. PLAN NO. PARCEL ID: �3 70 !7 STREET ADDRESS: 21 «VrA I ( G myevr stn G A -s4 -e- l ls. NC- 2-29F3041' Please print: Property Owner: Property Owner: The undersigned, registered property owners of the above noted property, do hereby authorize , of 1 ��i 'Q � A f eal ll(-' (Contractor / Agent) (Narr a of consulting firm) to act on my behalf and take all actions necessary for the processing, issuance and acceptance of this permit or certification and any and all standard and special conditions attached. Property Owner's Address (if different than property above): i & Telephone: S Z b- Z� 9- 5 9 6 b We hereby certify the above information submitted in this application is true and accurate to the best of our knowledge. Authorize516, nature Date: Z 5 I Authorized Signature Date: E UINOX Figure 1. Stream and Wetland Q E NYV PO \MENTAL Delineation Map This map is not a survey and is not to be construed as such. Q Property Boundary ® Jurisdictional Wetland Perennial Streams Buncombe County Parcels N 2010 Color Aerial Photo Conceptual Design Estimated Channel Values from Regional Curves Project: Craven Street Project No.: 1057 -CRAV Client: City of Asheville Contract No.: - County/State: Buncombe Co., NC Hydro - Physio Province: NC Mountains WA BKF ABKF dMMEAN n `�8KF WBED dMAx WBKF dm": Regional Curve Equations Coefficient Exponent 17.36 0.3693 18:559- 0:6616 1.1771 0.2697 55:425 1 0.7874 12 0.45 1.5 0.27 Approximate Equations Coefficient Exponent 14.53496 0.39 1.64794 0.27 Design Status FINAL (Limited Data, Not Used in Calculations) (Limited Data, Not Used in Calculations) (Used in Calculations) (Used in Calculations) P X1057- CRAV�Design�2013- 04- 17CRAVChannel Design xlsm 611912013 Estimated Dimensions from Regional Curves UNBORN .. Spacing �R P X1057- CRAV�Design�2013- 04- 17CRAVChannel Design xlsm 611912013 Reach Locations Project: Craven Street Project No.: 1057 -CRAV Client: City of Asheville Contract No.: - County /State: Buncombe Co., NC Existing Thalweg Proposed Design Reach Stationing Stationing Description Begin End Begin End Craven 10+00 13 +80 from pipe Inv to French Broad River P 0057- CRAODesign12013- 04- 17CRAVChonnel Design xlsm 611 912 01 3 Discharge Calculations Estimated Values from Regional Regression Equations Project: Craven Street Project No.: 1057 -CRAV Client: City of Asheville Contract No.: - County /State: Buncombe Co., NC Event Bankfull 2 -yr 5 -yr 10 -yr 25 -yr 50 -yr 100 -yr 200 -yr 500 -yr Regional Regression Equations Coefficient Exponent 55.425 0.7874 -13# 0.7-02 242 0.677 334 0.662 476 0.645 602 0.635 745 0.625 W 8 0.616 1160 0.605 Include C Design Status FINAL Estimated Discharges Drainage Area (Mi2) Bankfull (Cfs)- MEMO P U057-CRAVWesign�2013 -04 -17 CRAVChannel Design xlsm 611 912 01 3 a Project: Craven Street Project No.: 1057 -CRAV Client: City of Asheville Contract No.: - County /State: Buncombe Co., NC Design Section 1 Design Status FINAL 100 '-- - - - - - -- - - - - -- - -- i Detailed Section Coef ----------- WBKi WEED 15.50 0.45 120% d, u 1.55 I WBE[ Bank Slope 2.5 (H:1) Thalweg Ratio 0.3 161% WTHI Toe Depth Ratio 0.8 2.3 1.4 Bench Width Ratio 0,5 2.3 d w Bench Slope 10 (HA) Drainage Area 0.20 (sq. mi.) dTOI 1.0 94% 107% 112% #DN /01 0.9 0.8 0.7 0.8 94% 107% 115% 6.4 5.0 5.9 8.6 135% 172% 145% I I 0.74 0.70 0.75 112% 102% 107% #VALUEI 10.3 7.3 I so 115% 162% 133% #VALUEI 0.62 0.69 0.67 0.73 � 1 106% 109% #VALUEI 14.3 9.3 12.2 � 15.4 107% 166% 127% #VALUE! I I J t 400 450 500 Regional Curve Reference/Watershed - -- Quick Section S50 600 Detailed Section - Design Section Point of Comparison ABKI Thompson Creek Downstream of Site dMEAP Hydr. F Wild Ratic Section c.omoansons Regional Curve Design Section Quick Section Detailed Section Coef Exp WBKi WEED 15.50 0.45 120% d, u 1.55 0.27 WBE[ Bank Slope 2.5 (H:1) Thalweg Ratio 0.3 161% WTHI Toe Depth Ratio 0.8 2.3 1.4 Bench Width Ratio 0,5 2.3 d w Bench Slope 10 (HA) Drainage Area 0.20 (sq. mi.) dTOI Point of Comparison ABKI Thompson Creek Downstream of Site dMEAP Hydr. F Wild Ratic Section c.omoansons Regional Curve Ref/ Wtrshed Quick Section Detailed Section Design Section 9.6 6.8 8.5 0.0 11.5 120% 169% 136% #DIV /01 7.8 4.7 6.3 7.5 96% 161% 120% 2.3 1.4 1.5 2.3 96% 161% 150% 1.1 0.9 0.9 0.0 1.0 94% 107% 112% #DN /01 0.9 0.8 0.7 0.8 94% 107% 115% 6.4 5.0 5.9 8.6 135% 172% 145% #VALUE! 0.67 0.74 0.70 0.75 112% 102% 107% #VALUEI 10.3 7.3 8.9 11.9 115% 162% 133% #VALUEI 0.62 0.69 0.67 0.73 117% 1 106% 109% #VALUEI 14.3 9.3 12.2 15.4 107% 166% 127% #VALUE! P 11057 -CRAVE Design �2013-04-1 7 CRAVChonnel Design xlsm 611912013 Typical Section Dimensions Project. Craven Street Project No.: 1057 -CRAV Client: City of Asheville Contract No.: - County/State: Buncombe Co., NC Design Status FINAL Pool Dimensions P X1057- CRAV�Design12013- 04- 17CRAVChannel Design xlsm 611912013 Hydraulic Dimensions Project- Craven Street Project No.- 1057 -CRAV Client: City of Asheville Contract No.: - County/State: Buncombe Co., NC Stream Entrench Reach Type ABKF PWET RHYD dMEAN W/D Ratio Ratio Craven B 8.6 11.9 0.7 0.7 15.4 0.0 Morphologic Dimensions Pool Spacing/WAvG Pool Spacing 2EM Status INCOMPLETE P X 1057- CRAV�Design�2013- 04- 17CRAVChonnel Design xlsm 611912013 Morphologic Dimensions Project Craven Street Project No.: 1057 -CRAV Client: City of Asheville Contract No.: - County/State: Buncombe Co., NC Design Status INCOMPLETE C Meander SAVG 'VALLEY Sinuosity Width Ratio 0.010 P 0057- CRAODesign�2013- 04- 17CRAVChonnel Design xlsm 611912013 MEN Feature Length �-fflpff.Tw-n P 0057- CRAODesign�2013- 04- 17CRAVChonnel Design xlsm 611912013 Structure Dimensions Project: Craven Street Project No.. 1057 -CRAV Client: City of Asheville Contract No.: - County/State: Buncombe Co., NC Design Status INCOMPLETE Boulder Size P X 1057- CRAV�Design�2n13 -04 -17 CRAVChonnel Design xlsm 611912013 Competence Calculations Project: Craven Street Project No.: 1057 -CRAV Client: City of Asheville Contract No.: - County /State: Buncombe Co., NC Design Status INCOMPLETE Reach mom Largest Particle Calculations Representative Particle Calculations Wom® Min Max Craven Representative Particle Low 80% 100% 0.0281 to 0.0351 Kim MN Reach Calculation Method Sediment Load Percent Calculated Slope Design Slope Range (ft/ft) Min Max Craven Representative Particle Low 80% 100% 0.0281 to 0.0351 P ( 1057 -CRAVE Design �2013-04-1 7 CRAVChannel Design xlsm 611912013 Transition Reach Design Project: Craven Street Project No.: 1057 -CRAV Client: City of Asheville Contract No.: - County /State: Buncombe Co., NC Design Status INCOMPLETE P X1057- CRAV� Design `2013- 04- 17CRAVChannel Design xlsm 611912013 Design Depth Critical Shear T* Transition Slop (ft/ft) I Shear T 'Size (in) Armor Size P X1057- CRAV� Design `2013- 04- 17CRAVChannel Design xlsm 611912013 Supplemental Bed Material Design Project: Craven Street Project No.: 1057 -CRAV Client: City of Asheville Contract No.: - County/State: Buncombe Co., NC Design Status INCOMPLETE Material Gradation Percentage of Total by Weight Material Size Sand/Clay ABC(M) 1/2" Stone (No. 57) 3/4" Stone (No 5) 2" Stone (Surge) 6" Stone NCDOT (Class A) 12" Stone NCDOT (Class B) 1B" Stone NCDOT (Class 1) Sand #16 #10 100 #8 12 #4 9 2 3/8" 9 3 1/2" 16 12 2 3/4" 16 25 3 in 13 48 32 1.5" 12 7 58 2" 13 3 5 3" 19 4" 50 19 5" 50 19 6" 19 19 13 B" 19 19 13 9" 5 19 14 ion 19 14 12" 19 14 14" 5 13 16" 14 18" 5 24" Toth % 100 100 100 100 100 -100 100 100 P X1057 - CRAV `Design�2013- 04- 17CRAVChonnel Design xlsm 611912013 Supplemental Bed Material Desian Project: Craven Street Project No.: 1057 -CRAV Client: City of Asheville Contract No.: - County /State• Buncombe Co., NC DeSIQn Status INCOMPLETE Composition Material D• (Class A) Stone: �• �• - - - -- -- Design P 11057- CRAV�Design�2013 -04 -17 CRAVChonnel Design xlsm 611912013 P 11057- CRAV�Design�2013 -04 -17 CRAVChonnel Design xlsm 611912013 HEC47AS Plan Ran 03 River Cammn Rmch 1 Rod Rh4W Ble P4d9a O Tah11 ►On Ch B W.B. Bav C78 W.9. EO. Bev E.O. 51cps WI CM RoW AM Top Fla ftN Ch1 Shear Chan aa) m @) @ MW (wN @) Usiaan) 1 12 Blff 1600 197880 197958 197918 197964 0005225 1 91 839 1142 039 023 1 12 2 YR 14913 197860 1981 19 1980 61 198147 0 006577 463 4622 3150 _ 053 093 1 12 10 YR 29256 197860 198203 198139 198248 0007489 606 7271 31501 0 80 145 1 12 80 YR 45622 197860 198282 198198 198343 0007913 722 9745 3150 i 064 190 1 Ili BID* 1600 197786 197844 197844 197867 0039290 379 422 942 100 108 1 it 2 YR 14913 197786 1979 87 1979 87 1980 53 0020598 6 77 2839 2768 090 220 1 11 10 YR 29254 197786 198085 1980 65 198150 0018158 813 52 53 3150 090 280 1 11 60YR 458 22 197786 198124 1981 24 1992 38 0 019390 965 71101 3150 096 368 ISD 1 10 Bill 1600 187650 197700 197708 197733 0070895 461 3471 901 131 168 1 10 2 YR 14913 197650 197801 1978 51 197955 0071452 1008 1650 1964 159 544 1 10 10 YR 29264 1976 50 197868 197929 198064 0055495 11W 3333 3040 150 649 1 to YR 45822 197650 197920 197989 198150 0051166 1331 4965 3150 1 50 760 1 9 BIff 18 00 1873 97 197481 197455 197489 0009739 2 36 6771 1068 052 038 1 19 2 YR 149,131 197397 197638 197598 197673, 0 009589 526 39 73 3150 063 124 1 9 /0 YR 292 54 1973 97 1977 18 1976 76 1977 73 0 009897 8 65 6577 31 50 068 178 1 9 5D YR 45622 1873 87 197793 197735 1978 66 0010160 793 89 34 3150 072 229 1 B BIff 1600 197362 197451 197458 0007681 18 18 736 1095 047 031 1 6 2 YR 14913 197362 197605 197640 0 008812 511 41 13 3150 061 lie 1 e 10 YR 1 29254 197362 197684 1977 38 0 009818 8 63 6595 3150 068 177 1 8 6D YR 45622 197362 187755 197829 0010447 790 8848 31 50 0731 233 1 7 BIO: 18 00 1873 31 197389 197389 197412 0 039670 380 421 941 100 108 1 17 2 YR 14913 197331 197532 197532 1975 98 0020502 8 77 2838 2768 3901 220 i 7 10 YR 29254 197331 197610 197610 197695 0018199 813 5249 3150 )901 280 1 7 5D YR 45622 19733t 197870 197870 197783 0019311 964 7121 3150 098 387 1 8 Bill 1600 197200 197252 197258 197282 0063116 4 441 361 908 1 24F 154 1 8 2 YR 14913 197200 197353 1974 01 197501 0 066849 9 87 1887 2002 154 519 1 6 10 YR 29254 197200 197421 1974 79 197609 0052608 11 62 3414 30 83 146 8 24 t 8 60 YR 45822 1972 00 197473 187539 197688 0049147 13 14 50 43 31 50 147 7 38 1 Is BRF 1600 1970 75 197133 197133 197156 _ 0 039631 3 80 421 941 100 109 1 8 2 YR 14913 1970 75 187244 1872 78 197355 0 043810 864 20 33 2254 1 27 3 82 1 5 10 YR 292 54 1970 75 197299 197354 197478 0 049019 11 35 3525 3140 1421 592 1 Is 6D YR 45622 197075 197347 197414 1975 71 0 049353 1315 5035 31 50 148 740 1 4 aw 1600 196954 197006 197012 197036 0062549 4431 362 909 124 153 1 4 2 YR 14913 196954 1971 18 197155 197240 0050585 9 041 1911 2166 136 4241 1 4 10 YR 29254 196954 197178 197233 197358 0 D49708 11411 3503 3128 143 598 1 4 6D YR 4%22 1969 54 197226 197293 1974 51 0049570 13 17 5027 31 50 148 742 1 8 ow 18 00 1988 97 1867 33 1887 55 196810 0 257681 7 02 228 8 321 23 7 4 36 1 2 YR 14913 1966 97 1968 25 196898 1970 69 0146478 12 59 1237 1593 219 910 1 3 10 YR 292 64 19W97 196883 196976 197204 0111001 14 82 24 43 25 29 2 OB 1084 1 3 60 YR 46622 196697 1968 32 197035 197303 009M71 1650 38 50 3150 2011 1231 1 2 Bill 1600 1968 33 1966 78 1966 91 1967 21 0105678 526 304 8 77 2 2 YR 148 13 196633 196763 1968 34 196994 0133717 12 25 12 61 18 38 1 2 10 YR 292 64 198833 196818 196912 197146 0115075 1 1499 2406 25 0425 04 92+06:71281 2 50 YR 45622 196633 196865 1989 71 1972 52 0102152 18 81 37 85 31 W t 1 Blff 1600 196441 196524 1964 99 1965 33 0 010009 239 6 70 1065 0 53 038 1 1 2 YR 14913 196441 196573 1966421 196796 0126774 13 O8 16 82 208 821 1 1 10 YR 29254 196441 196623 1967201 196966 0122513 �12 23 38 24 62 215 11 65 1 50 VR 458 22 1984 41 196888 188780 — 1970 87 0113555 — 36 01 31501 216 13 BB .e 1 8 F i a ral� ��" � LEGEND �Je � CGS A " - USACE �� NCDWQ . USACE 710NAL 4g� ti _ _° ,, - ._ _ m °.• LIMITS - \ \ \! / - 1995 —°� ' ° NCDWQ ORDINAR�f �' - _ v ° A6H -WATER (OHW)- v o 6 AD TRU - / ZOp0' o o � �♦ o o /° - � � �� c 3 v �� o ' o 14, 6. s\ — i�85 o i _ \\ � / �/ / / �/ lool \ ( ! f o, .10 o i / ol °° °/ .1e \ 12 loll / 0. kV �?0�� ol 7' 1 .g, w FIGURE 1 NEW BELGIUM ASHEVILLE USACE & NCDWQ EXHIBIT � ® , ASHEVILLE, NORTH CAROLINA 4' ti COMM. NO. 3267 SCALE 1" = 40' r w Mattern & Craig �© o g CONSULTING ENGHMS • SURWMRS o . _ 12 BROAD STREET ASHEVILLE, NORTH CAROLINA 28801 (828) 254 -2201 DATE: 9/11/12 FAX (828) 254 -4562 1 1 Uo o LIMITS OF DISTURBANCE TO WETLAND 1 0.06 AC. Typ. ► WETLAND BOUNDARY 1 (0.15 AC.) 1SE3 „ 1 Tw:197o •„_,,,_,••_„ „_•, _ _ _ - - - - _- -�- - - - -„_ •_,•, .00 o � s i - 20' MSD R.O.W. \ I � `. 118t01LI- - a I ` a � J O O J J I a a J I 9 0 i 0 SANITARY SEWER a _ _ o n > J ' S ] 100 -YR FLOODPLAIN ROCK OUTCROP �-� mom 'm �I I I 404/401 APPLICATOON GREENWAY WETLAND IMPACT EXHIBIT ,A_ o 6-21-13 (1 of 2) W 5 0 10 m 30 rm memo its wevoll ", 111 111 6*00 0000 20600 it 1 sun I sum, 000 o � o p / O o O WETLAND BOUNDARY O (0.003 AC.) o o d o o � O c o O c o o G 404/401 APPUi AT�ON 6-21-13 GREENWAY WETLAND IMPACT EXHIBIT ( 2 OF Imo �� \) ,CALL I I IC 1 5 o s n 15 O I ■I m r U, II CD O I� C ti c� v I E; MATCHLINE C8D I •4 T N K D (D -0 O CLw V N_p , I, CJ i I i �N u� - ; 1 � J� 0-11 CJ f 1 C) I U� i u -fi 0 I I -4- I I4 C) I O) + U, C) C f ■ ION!, ��oxo D D N go, I (D 7 < < 3 O N D D 7 1 3 C 7 O + _ (D (D 0 CD O O O) N N Opp O 0) � J (D o a- 0 O a I rn I (D J (D � I I I I I I� U) N < (D (D O W N (D ID o� Ln 0 a J i ■ ■ ■ ■ ■■I ■ MATCHLINE C8F �Ua -Lj-Z =— I---- L------------------ - - - - -- 'CHLINE C8D •— 1 t� - - - -- ----------------------- 1 • �+ I 1 t � 1 � \ t\ � A m t• \ 1 I 1 1, 1 !s , I � 1 + 1 1 1 , l t 1 1 1 1 1 1 1 1 ! I 1 1 1 I1 1 1 1 1 1 1 1 1 1 •I 11 1 I 1 11 I 1 11 1 W I I •1 11 1 I •1 1 I •I 1 ,I 1 1 •I 11 1 1 I � r !r 1,1 � 11 1 •jw 1 11 ;1 1 � j•■r J 1 Il ` \ 1 \ � 1 v t 1 O C 1 t 1 1 1 RD I LD 1 v .p 1 g 1r+ t w� T j III I � 1 I, it 1 I 1 III I II 1' _ 1 ` \ � ■rlli �� 1 o (D (D O rt 7 � 7• I 5 0 3 D F m N 3 (D a < _T7� rt J N D (D O O 7 3 rt 0 N C p N (0 0 O yQ CO 10 0) � T O 0Wa O)WO on C40)�0 S_ Ln < M s� � (D a Ln 0 a J i ■ ■ ■ ■ ■■I ■ MATCHLINE C8F �Ua -Lj-Z =— I---- L------------------ - - - - -- 'CHLINE C8D •— 1 t� - - - -- ----------------------- 1 • �+ I 1 t � 1 � \ t\ � A m t• \ 1 I 1 1, 1 !s , I � 1 + 1 1 1 , l t 1 1 1 1 1 1 1 1 ! 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STREAM - PLAN VIEW scale 1"=10' 2004-- - - - - - - - - -- 2000 - - 1998 - -- - -- - — - - - __ _ PEDESTRIAN BRIDGE 1992 EXISTING STREAM CHANNEL - 1988 — - - - - - 1984 - PROPOSED STREAM CHANNEL __ —_ , _ - PEDESTRIAN BRIDGE - - - - - will - - - - -- _ - -- 1978- - - I 1972 - - 1988 TYPICAL RIFFLE ,984 � �. 4 +00 TYPICAL POOL srm�».are 1960 0. - ION 195 MSD (APPROX. ELEV.) 1958 LO N M M STREAM - LONGITUDINAL PROFILE horizontal scale 1 " =10' vertical scale 1 " =5' I 4 +45 CID co TABLE 1 SECTION DIMENSIONS q RIFF] F : MENSONS P00 0 yENStONS �'YPICAL REACH CCIM ,IO STAT C`. rimu \•Te.o Wnw V1__ WERNOUS LINOR SECTION 1 _— p� Virt IVyr oyy\ TYPICAL PIFFLE •:OT TO SVEE 4tq PI OU Ct) (n1 VO (fl) r. YIgS„ Gy Nyt 23 ' 1C 100 1 080 1 09 j 58 ' 151 w4AEG 4ow 1b, IY, ^EFV 0�5 . •ff9 SECTION 1 TYP CAL POOL NOT TO STALE TABLE 1 SECTION DIMENSIONS RIFF] F : MENSONS P00 0 yENStONS �'YPICAL REACH CCIM ,IO STAT C`. rimu \•Te.o Wnw V1__ car _— p� Virt IVyr oyy\ C1) GO 4tq PI OU Ct) (n1 VO (fl) Crpvc� 1 0400 70 St °_0 115 75 23 ' 1C 100 1 080 1 09 j 58 ' 151 II I I n N � m \ 0 n 7 V O 0 T s Z Q z L O (n � G 7 � V S 77 O < V L � > 7 (v a > Hp, SCOIC 1' -10. co-- '--c, 3267 5 -t \o c9c] ARCH CULVERT- GRADE CONTROL STRUCTURE ® ® ® ® ® ® ® ® m I 1 i Fif 0 / GRADE CONTROL STRUCTURE; I M PACT AREA (0.01 AC.) � , I I EXCAVATED AREA (0.02 AC.) 404/401 6 -21 -13 DELINEATE WETLAN 0 Cf)_ - - _ _ --- - - � o � d I' 1� 32.4' � 1 I \ 1 1 \ \ 1 \ I 1 \ \ I 27.0' 1 � � I o I 1, GRADE CONTROL STRUCTURE EXHIBIT application xP-112 10 5 0 10 1D GRADE CONTROL CONCRETE WALL TOP OF WALL 1986.5 WITH LOW FLOW NOTCH AT 1986.0 TECH ARCH ALUMINUM STEEL 1 X 6' -3" GRADE CONTROL CONCRETE WALL TOP WALL 1986.5 WITH LOW FLOW NOTCH AT 1986.0 GRADE CONTROL CONCRETE WALL TOP WALL 1986.5 WITH LOW FLOW NOTCH AT 1986.0 FILTER FABRIC CONTECH ARCH ALUMINUM STEEL CORRUGATED STRUCTURAL PLATE ARCH CULVERT OR EQUIVALENT 0.125" THICK 22" RIB SPACING. -12" STONE FOR STREAM BED 12" DEEP 8" X 18" CONCRETE BAFFLES REQUIRED EVERY 5 FEET TO PREVENT MOVEMENT OF RIP RAP 12" OF ABC BEDDING COARSE GRADE CONTROL CONCRETE WALL TOP OF WALL 1986.5 WITH LOW FLOW NOTCH AT 1986.0 CURRENT SILT LEVEL 1986.0 REMOVE APPROXIMATELY 0.01AC OF ACCUMILATED SILT FROM BEHIND PROPOSED GRADE CONTROL STRUCTURE. 1016 SLOPE I 1 % SLOPE mod—i 1993.3 CRAVEN STREET CONCRETE HEADWALL CONTECH ARCH ALUMINUM STEEL 12'-0" X 6' -3" TOP OF ARCH FOUNDATION AT INLET 1982.5 18"X 18" CONCRETE BAFFLE 6" -12" STON4 FOR STREAM BED 12" DEEP EDPM LINER UNDERCUT AND BACKFILL WITH WASHED STONE, EXACT DEPTH AND LOCATION TO BE DETERMINED BY GEOTECHNICAL ENGINEER 0