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HomeMy WebLinkAbout20200507 Ver 1_PCN Form Submission_20200414DWR Dlrlslon of Water Resources Pre -Construction Notification (PCN) Form April 11, 2020 Ver 3.1 Initial Review Has this project met the requirements for acceptance in to the review process?* r Yes r No Is this project a public transportation project?* C Yes r No Change only if needed. BIMS # Assigned 20200507 Is a payment required for this project?* r No payment required r Fee received r Fee needed - send electronic notification Select Project Reviewer* David May:eads\dlmay Information for Initial Review 1a. Name of project: Beaufort Co Community College Stormwater Wetland 1a. Who is the Primary Contact?* David Loope 1b. Primary Contact Email:* jason.squires@beaufortccc.edu Date Submitted 4/14/2020 Nearest Body of Water Broad Creek Basin Tar -Pamlico Water Classification C;NSW Site Coordinates Latitude: Longitude: 35.5335446 -76.9674779 A. Processing Information County (or Counties) where the project is located: Beaufort Is this a NCDMS Project r Yes r No Is this project a public transportation project?* r Yes r No 1a. Type(s) of approval sought from the Corps: W Section 404 Permit (wetlands, streams and waters, Clean Water Act) r Section 10 Permit (navigable waters, tidal waters, Rivers and Harbors Act) Version#* 1 Reviewing Office* Washington Regional Office - (252) 946-6481 1c. Primary Contact Phone:* (252)940-6423 U 1b. What type(s) of permit(s) do you wish to seek authorization? W Nationwide Permit (NWP) r Regional General Permit (RGP) r Standard (IP) 1c. Has the NWP or GP number been verified by the Corps? r Yes r No Nationwide Permit (NWP) Number: NWP Numbers (for multiple NWPS): 1d. Type(s) of approval sought from the DWR: W 401 Water Quality Certification - Regular r Non-404 Jurisdictional General Permit r Individual Permit 18 - Minor Discharges le. Is this notification solely for the record because written approval is not required? For the record only for DWR 401 Certification: For the record only for Corps Permit: F- 401 Water Quality Certification - E)press r Riparian Buffer Authorization 1f. Is this an after -the -fact permit application?* r Yes r No 1g. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts? r Yes r No 1g. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts? r Yes r No Acceptance Letter Attachment 1h. Is the project located in any of NC's twenty coastal counties? r Yes r No 1i. Is the project located within a NC DCM Area of Environmental Concern (AEC)? r Yes r No 1j. Is the project located in a designated trout watershed? C Yes r No F. Applicant Information 1d. Who is applying for the permit? fJ Owner r Applicant (other than owner) le. Is there an Agent/Consultant for this project?* r Yes r No 2. Owner Information 2a. Name(s) on recorded deed: BEAUFORT CO COMMUNITY COLLEGE 2b. Deed book and page no.: 0630/00235 2c. Responsible party: BEAUFORT CO COMMUNITY COLLEGE 2d.Address Street Address 5337 US 264 HWY E Address Line 2 city Washington Postal / Zip Code 27889 2e. Telephone Number: (252)940-6423 2g. Email Address:* jason.squires@beaufortecc.edu r Unknown State / Rovince / Region NC Country USA 2f. Fax Number: r Yes r No r Yes r No u C. Project Information and Prior Project History C") 1. Project Information 1b. Subdivision name: (if appropriate) 1c. Nearest municipality/ town: Washington, NC 2. ProjectctIdentification 2a. Property Identification Number: 2b. Property size: 6605-55-4470 62.86 2c. Project Address Street Address 5337 US 264 HWY E Address Line 2 aty State / Province / Fbigion Washington NC FPbstal / Zip Code Country 27889 USA 3. Surface Waters 3a. Name of the nearest body of water to proposed project:* Broad Creek 3b. Water Resources Classification of nearest receiving water:* C;NSW 3c. What river basin(s) is your project located in?* Tar -Pamlico 3d. Please provide the 12-digit HUC in which the project is located. 030201040105 4. Project Description and History 4a. 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 existing stormwater ditch is located between Building 8 of BCCC and HWY 264 on the BCCC property. The ditch drains an area of 18 acres. The ditch is trapezoidal and is maintained turf grass. 4b. Have Corps permits or DWR certifications been obtained for this project (including all prior phases) in the past?* r Yes r No t^ Unknown 4d. Attach an 8 1/2 X 11 excerpt from the most recent version of the USGS topographic map indicating the location of the project site. (for DWR) BCCC_topo.pdf 282.2KB 4e. Attach an 8 1/2 X 11 excerpt from the most recent version of the published County NRCS Soil Survey map depicting the project site. (for DWR) BCCC Soil Map.pdf 544.95KB 4f. List the total estimated acreage of all existing wetlands on the property: 0 4g. List the total estimated linear feet of all existing streams on the property: 285 feet 4h. Explain the purpose of the proposed project:* The eAsting stormwater ditch will be transformed into a stormwater wetland. The project will be comprised of two wetland cells totaling about 1/4 of an acre. The wetland cells will be planted with a variety of herbaceous wetland plants and include shallow and deep water areas for habitat and vegetative diversity. The wetland will treat runoff from 18 acre watershed (7 acres of impervious surfaces (roads, building and parking lots)). The wetland is designed to capture and treat a 1" storm event and the outlet structure is sized to accommodate the 100-yr storm event. 41. Describe the overall project in detail, including indirect impacts and the type of equipment to be used:* Using grant funding, Sound Rivers, Inc., NC Sea Grant and NCSU Dept. of Biological and Agricultural Engineering are developing demonstration projects for stormwater management at schools throught the Neuse and Tar River Basins. The projects are intended to improve water quality by removing sediment, nutrients and other pollutants. Constructing a storm water wetland in the area will increase water storage and improve water quality treatment and sediment capture compared to wasting conditions. The wetland will also provide educational value as it will be used by science classes at the college. A track hoe and bobcat will be used to complete the excavation and earth moving. All cut material will be hauled away from the site or stockpiled for use by the college in future projects. 4j. Please upload project drawings for the proposed project. BCCC _wetlands _4_8_2020.pdf 4.11 MB 5. Jurisdictional Determinations 5a. Have the wetlands or streams been delineated on the property or proposed impact areas?* r Yes r No r Unknown Comments: Desktop delineation by USACE 5b. If the Corps made a jurisdictional determination, what type of determination was made?* r Preliminary r Approved r Not Verified r Unknown f N/A Corps AID Number: 5c. If 5a is yes, who delineated the jurisdictional areas? Name (if known): Emily Thompson Agency/Consultant Company: t1SACE Other: 5d. List the dates of the Corp jurisdiction determination or State determination if a determination was made bythe Corps or DWR March 24, 2020 the delineation was provided based on the limits of grading foo the proposed project. 5d1. Jurisdictional determination upload 6. Future Project Plans 6a. Is this a phased project?* r Yes r No Are any other NWP(s), regional general permit(s), or individual permits(s) used, or intended to be used, to authorize any part of the proposed project or related activity? NIA [Proposed Impacts Inventory 1. Impacts Summary la. Where are the impacts associated with your project? (check all that apply): r Wetlands r Streams -tributaries rO Open Waters r Pond Construction 4. Open Water Impacts r Buffers 4a. Site # 4a7. Impact Reason 4b. Impact type 4c. Name of wat,rbody 4d. Activity type 4e. Waterbody type 4f. Impact area Stormwater Ditch Stormwater Wetland P Ui to Broad creek Excavation Ditch 0.06 4g. Total temporary open water Impacts: 0.00 4g. Total open water impacts: 0.06 4g. Total permanent open water impacts: 0.06 4h. Comments: The existing ditch will be excavated and reshaped as part of the construction of the sormwater wetland. The excavation within the limits of the ditch will consist of 106 CY of cut and 7.5 cy of fill. E. Impact Justification and Mitigation 1. Avoidance and Minimization 1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project: This is a stormwater retrofit. An existing low quality ditch will be converted to a stromwater wetland that will provide treatment of runoff from a 18 acre watershed. 1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques: Appropriate sized grading equipment is used in order to complete the project in a short time frame, thus minimizing disturbance through sediment and erosion control. Measures will be taken to minimize any possible transport of sediment to downstream waters during construction. 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? r Yes r No 2b. If this project DOES NOT require Compensatory Mitigation, explain why: This is a stormwater retrofit. No new development or impervious surfaces will be added to the site. The project is intended to enhance aquatic resources on the property and provide ecosystem services of water quality improvement and habitat. F. Stormwater Management and Diffuse Flow Plan (required by DWR) u 1. Diffuse Flow Plan 1a. Does the project include or is it adjacent to protected riparian buffers identified within one of the NC Riparian Buffer Protection Rules? r Yes r No If no, explain why: Existing stormwater runoff is piped to the ditch. The existing stormwater drainage network will not be modified. The ditch will be improved by converting to a wetland. 2. Stormwater Management Plan 2a. Is this a NCDOT project subject to compliance with NCDOT's Individual NPDES permit NCS000250?* r Yes r No 2b. Does this project meet the requirements for low density projects as defined in 15ANCAC 02H .1003(2)? r Yes r No 2c. Does this project have a stormwater management plan (SMP) reviewed and approved under a state stormwater program or state -approved local government Stormwater program? r Yes r N/A - project disturbs < 1 acre 3. Stormwater Requirements r No 3a. Select whether a completed stormwater management plan (SMP) is included for review and approval or if calculations are provided to document the project will not cause degradation of downstream surface waters.* r Stormwater Management r Antidegradation Plan Calculations 3b. Stormwater Management Plan 3c. Antidegradation Calculations: Comments: This project is not creating new stormwater infrastructure. Rather, the project is a stormwater retrofit intended to improve treatment of runoff from an existing stormwater source. G. Supplementary Information f 1. Environmental Documentation la. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land?* r Yes r No 1b. 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 (North Carolina) Environmental Policy Act (NEPA/SEPA)? * r Yes r No Comments:* The project is partially funded through an Environmental Enhancement Grant provided by the NC Department of Justice. 2. Violations (DWR Requirement) 2a. Is the site in violation of DWR Water Quality Certification Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300), or DWR Surface Water or Wetland Standards or Riparian Buffer Rules (15A NCAC 2B .0200)?* r Yes r No 3. Cumulative Impacts (DWR Requirement) 3a. Will this project result in additional development, which could impact nearby downstream water quality?* r Yes r No 3b. If you answered "no," provide a short narrative description. The proposed stormwater wetland is located on BCCC property and future development is not anticipated. 4. Sewage Disposal (DWR Requirement) 4a. Is sewage disposal required by DWR for this project?* r' Yes a No r' WA 5. Endangered Species and Designated Critical Habitat (Corps Requirement) 5a. Will this project occur in or near an area with federally protected species or habitat?* r Yes r No 5b. Have you checked with the USFWS concerning Endangered Species Act impacts?* r Yes f• No 5d. Is another Federal agency involved?* r Yes r No 5e. Is this a DOT project located within Division's 1-8? r Yes r No 5f. Will you cut anytrees in order to conduct the work in waters of the U.S.? r Yes r No 5g. Does this project involve bridge maintenance or removal? r Yes r No 5h. Does this project involve the construction/installation of a wind turbine(s)?' r Yes r No r Unknown 51. Does this project involve (1) blasting, and/or (2) other percussive activities that will be conducted by machines, such as jackhammers, mechanized pile drivers, etc.? r Yes r No 5j. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? The epsitng ditch does not provide critical habitat for the species listed for Beaufort County- https://vmw.fvos.gov/raleigh/species/cntylisVbeaufort.html There are no designated critical habitats in this project area- https://fws.maps.arcgis.corrhome/webmap/vievver.htmi? webmap=9d8de5e265ad4fe09893cf75b8dbfb77 Consultation Documentation Upload 6. Essential Fish Habitat (Corps Requirement) 6a. Will this project occur in or near an area designated as an Essential Fish Habitat?* r Yes r No 6b. What data sources did you use to determine whether your site would impact an Essential Fish Habitat?* hftps://www.habitat.noaa.gov/application/efhmpper/indexhtml 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 status?* r Yes r No 7b. What data sources did you use to determine whether your site would impact historic or archeological resources?* NC Historic Preservation Office's HPOWEB 2.0 7c. Historic or Prehistoric Information Upload 8. Flood Zone Designation (Corps Requirement) 8a. Will this project occur in a FEMA-designated 100-year floodplain?* r Yes r No 8c. What source(s) did you use to make the floodplain determination?* NC FRIS - https://fris.nc.gov/fris/indexaspx?FIPS=013&ST=NC&user=General%20Public Miscellaneous Comments Miscellaneous attachments not previously requested. Signature u * W By checking the box and signing below, I certify that: • I have given true, accurate, and complete information on this form; • I agree that submission of this PCN form is a "transaction" subject to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act"); • I agree to conduct this transaction by electronic means pursuant to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act'); • I understand that an electronic signature has the same legal effect and can be enforced in the same way as a written signature; AND • I intend to electronically sign and submit the PCN form. Full Name: David R. Loope Signature O"Flees Date 4/14/2020 Soil Map—Beaufort County, North Carolina (BCCC Soil Map) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/24/2020 Page 1 of 33933500393360039337003933800393390039340003934100393420039343003934400393450039335003933600393370039338003933900393400039341003934200393430039344003934500321300321400321500321600321700321800321900322000 321300 321400 321500 321600 321700 321800 321900 322000 35° 32' 18'' N 76° 58' 18'' W35° 32' 18'' N76° 57' 45'' W35° 31' 42'' N 76° 58' 18'' W35° 31' 42'' N 76° 57' 45'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 0 250 500 1000 1500 Feet 0 50 100 200 300 Meters Map Scale: 1:5,370 if printed on A portrait (8.5" x 11") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Beaufort County, North Carolina Survey Area Data: Version 21, Sep 16, 2019 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Apr 20, 2015—May 15, 2017 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Soil Map—Beaufort County, North Carolina (BCCC Soil Map) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/24/2020 Page 2 of 3 Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI AaA Altavista fine sandy loam, 0 to 2 percent slopes 0.4 0.2% CrA Craven fine sandy loam, 0 to 1 percent slopes 17.0 10.8% CrB Craven fine sandy loam, 1 to 4 percent slopes 0.2 0.1% CsC2 Craven clay loam, 4 to 12 percent slopes, eroded 20.0 12.8% GoA Goldsboro fine sandy loam, 0 to 2 percent slopes 49.6 31.6% Ly Lynchburg fine sandy loam 0.8 0.5% Me Muckalee loam, frequently flooded 47.3 30.2% Ur Urban land 21.6 13.8% Totals for Area of Interest 157.0 100.0% Soil Map—Beaufort County, North Carolina BCCC Soil Map Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/24/2020 Page 3 of 3 USGS The National Map: National Boundaries Dataset, 3DEP ElevationProgram, Geographic Names Information System, National HydrographyDataset, National Land Cover Database, National Structures Dataset, andNational Transportation Dataset; USGS Global Ecosystems; U.S. CensusBureau TIGER/Line data; USFS Road D ata; Natural Earth Data; U.S.Department of State H umanitarian Information Unit; and NOAA NationalCenters for Environmental Information, U.S. Coastal Relief Model. Datarefreshed February, 2020. PROJECT LOCATION 0 1,000500 Feet¯ BCCC USGS Topo Map 24.0023.0024.0023.0022.0021.0022.0021.0025.0024.0025.0025.0023.00DESIGN PLANS SOUND RIVERS STORMWATER WETLAND BEAUFORT CCC TITLE SHEET 1 OF 13 582485 #2 NCSU BAE WEAVER ADMIN. BLD. 3100 FAUCETTE DRIVE RALEIGH, NC 27695 919-515-6803PROJECT # PHASE #PROJECT CONTACTSJACK KURKI-FOXEXTENSION ENGINEERNCSU BAE(919) 515-6803jjkurkif@ncsu.eduBARBARA DOLLPROJECT MANAGERNCSU BAE & NC SEA GRANT(919) 515-5287bdoll@ncsu.eduHEATHER DECKSOUND RIVERS(252) 946-7211heather@soundrivers.orgCITY OF WASHINGTONELECTRICITY AND UTILITIES(252) 975-9300JASON SQUIRESBEAUFORT COUNTY COMMUNITY COLLEGE(252) 940-6423jason.squires@beaufortccc.eduSHEET INDEXSHEET #SHEET DESCRIPTION1TITLE SHEET2EXISTING CONDITIONS3SITE PREPARATION4SURVEY BENCHMARKS5PROPOSED PLAN6GRADING PLAN7PLANTING PLAN8SECTION VIEWS9SECTION VIEWS10WETLAND DETAILS11WETLAND DETAILS12S & EC DETAILS13QUANTITIES AND NOTESBEAUFORT COUNTY COMMUNITY COLLEGE WETLANDVICINITY MAP5337 US-264, WASHINGTON, NC 27889PROJECT PARTNERS:US-264PROJECT LOCATIONBCCCBLD. 8 �alumina, �� EXISTING WSE APPROX. = 20.40 WALKING BRIDGE /V EXISTING CONDITIONS v 0 �\\ /'10 J2 2� � J NIN � � ./III\� r—� 2„ ROOF DRAIN _ INVERT ELV. 22.62 amomm _ /III I►\ � Q 12" H D P E "IftINVERT ELV. 20.10 � _ /III 111 — - - — � � — _ -comoo — — ` ` � � "-%ft � DITCH --- SgIVI -- --awwwo - - TARP �Swe _� _ ____R EASEMENT 0 — — WALKING BRIDGE — — _ (10 FEET — — 2, SE—IHR SI S— — — RY SEWER E_—Y —�—sops,p�F4.00 R NITARYS—EW� vSgER AS EMENT(10 — _ F v EET EI THE BCCC BUILDING 8 2" ROOF DRAIN INVERT ELV. 22.37 psoma s AIM woomb ampoo ' I\ swoop — swoop wo-W swoop �../ _ . 00000 00000 —swoop — — 00000 MOWN— doopol to swoop� NOR YARD INLET GRATE ELV. 25.69 MITERED END SECTION INVERT ELV. 22.49 1 _ moon w� 1 so — swoop OPENED I J PLAYGROUND G G : a ° 1 ° d ° Q r \\mW III � ,\\ �1,. — SANITARY S — — WER no -IV mow MANHOLE V ) ftft _�::;1111111111100,e TOP ELV. 25.86 O — — � — J � — — — a O— \ /��aftnummume \ \ 4 I ---I LIGHTPOLE 00010, — — 40-00"' d m� — m II 111\\`�\ ° \\\ I a° \ \\ III //i d ° ` 4a /rl ►111 a a � \ a ��\1►III ///� 0 a III /�% 80 Feet co 0 z U cn U) Uwwz ��>a Ow�z 0 LL (D z Q�0w ��Oo O co w o> m�� 0 zw� — � N 0 w U o w < 0 0 m w Q LD � > ,L wU') U w o < Z>M0'rn m :2H zow w N 0 w m C w LLI Lu Lu 0 Z Q O J N ~ � O w N 0 00 U Z U (n W m < < 5 w J O Q -- W Q U Q d Z N 0 W W D m 0 .. .. w Z Z � U U of Q (n LJ W OfW 2 W 0 0 U Q 00 N N 0 �co a_ a_ 1 � I TEMPORARY SILT FENCE SEE DETAILS G AND H LACE EXCAVATED SOIL IN THIS AREA COORDINATE EXACT STOCKPILE LOCATION WITH BCCC STAFF � I m m TEMPORARY CONSTRUCTION ACACESS. RESTORE TO PRE -CONSTRUCTION CON ITION FOLLOWING PROJECT COMPLETION REGRADE AND SEED WITH MATTING AND STR,`W. TEMPORARY ROCK CHECK DAM SEE DETAIL I TREE LINE N SITE PREPARATION PLAN CONSTRUCTION ,/.,—EXISTING GRAVEL PATH STAGING AREA TREE SINE VOLLEYBALL COURTS UNDERGROUND ELECTRIC COORDINATE WITH CITY OF WASHINGTON TO TURN OFF POWER DURING CONSTRUCTION ­0 III INSTALL TREE PROTECTION SEE DETAIL F ALKING BRIDGE TO BE :-:MOVED BY BCCC STAFF ZIOR TO CONSTRUCTION TREES (6) TO BE REMOVED OR RELOCATED BY BCCC STAFF PRIOR TO CONSTRUCTION DISK GOLF GOAL TO BE RELOCATED BY BCCC STAFF SHED A. s a d /4 d d ° d d ° ° ao dd `TREE<lNF <° S d ^ ,r G d BCCC BUILDING 8 WALKING BRIDGE TO BE REMOVED BY BCCC STAFF PRIOR TO CONSTRUCTION i d d. a d.'d \ A. d \ / °' 1 ° .d s 0 z U u) U) Uwwz ��>a Ow�z 0 LL ~ CD z Q�::)w 0 M O .w o> m C) rn z W ti — � N 0 LuUo Lu< 00 m(D w Q (D � > LL w� UwoQc� z>M0'm z Q O J N ~ � O W LLj N O 00 U z 0_ U (n 0_ m ¢ Q U Ld Ld D W J LLJ O Q 0' Q U Q 0_ z (n 0 Y Y Q m 0 W z z � U U 0_ Q 0 W 0_ 0_ W 2 0_ 0 0 U Q W of'r-- w m �L.L ZO Ld w w _cy) z O L0 00 N N 00 L0 U w Lu O Q a_ a_ /oon`common allow, GNOMM \ 1 SURVEY BENCHMARK LOCATIONS 1 TM B2 — TREE LINE L \\ i� ,X `Gomm common III\\Monaco a-Mooft _ _ "-Now comom _ — _ g � amon — — am.— Moscow somomp woomp — — BCCC BUILDING 8 s d d d d ° a d - ° d . Q - < ° d ° d a. a 1 d .d d °- q d ° < d d ° J ° d a J < "d a ° a a z d d �d < d d ° a d d ° .J < . ° a a d� 4 d d Q < . d d'Q < d d < d d d b : d. .p d .. d. ONNOWD -Mumma — � _MB1 00-10 � — � � _ _ _ a a amome\ \ < <\azi\. a POINT NORTHING (FT) EASTING (FT) ELV.JFTj DESCRIPTION TBM1 6557192.04 216047591.14 25.86 CENTER OF MANHOLE COVER TBM2 655,297.35 276045278.22 21.34 REBAR STAKE NEAR TREE LINE NOTE: ELEVATIONS FROM RELATIVE SURVEY. 0 40 MEM 0 a a a < 80 Feet U) 0 z U cn U Uwwz Ow�z 0 LL ..z� Dw Q CO J) Q—e O U) w o> mC)� oC-0 zwti — � N C w U o LLJ < 00 m w Q 5 � wU") U w o < Z>M0'rn W 'r-- L d m �L.L ZO Ld w w COO w t =P CM LIMPCU � LLI 0 Z o 0 o 04 W o N U Z U m U (n m < W U Ld Ld D W J LLJ O :2 < a� < U < W Z (n 0 W W D < m 0 W ZZ � U U of < 0 W W Of W 2 W 0 0 U < Lou CM L0 00 N N 0 L0 U w LU °_ a_ a_ PROPOSED LAYOUT � 2�00 ELEVATION SUMMARY FEATURE ELV. FT TOP OF BERM 23.00 FLASHBOARD INVERT (TEMPORARY POOL) 21.75 DRAWDOWN ORIFICE INVERT (PERMANENT POOL) 20.75 OVERFLOW WEIR 1 INVERT 22.00 OVERFLOW WEIR 2 INVERT 22.25 INFLOW RCP INVERT 22.49 LOW FLOW CHANNEL INVERT 19.75 BOTTOM DEEP POOL 18.75 BOTTOM FOREBAY 19.00 FOREBAY WEIR INVERT 21.25 MIDPOINT WEIR INVERT 20.75 CLCI.i I INIU IIN 1 r110 HIV T EXCAVATION IN THIS VICINITY SHALL BE COMPLETED BY HAND WETLAND STORAGE VOLUME ELV. FT STAGE (FT) S. AREA (SF) INC. VOL. (CF) CUM. VOL. (CF) 20.75 0.00 9,025 0 0 21.25 0.50 9,900 4,730 4,730 21.75 1.00 10,780 5,170 9,900 22.25 1.50 11,680 5,620 15,520 22.75 2.00 12,140 6,070 21,590 23.00 2.25 12,830 3,210 24,800 INVERT ELV. = 21.25 FT SEE DETAILS B AND D. FOREBAY A ELV. = 19.00 FT u; � z _ 1 1�0 W ,w� 1 <--- _� �� dr- .900 712" C LA S B R I P RA P / AT FOR BAY INLET TOP EL NATION TO MATCH ISTING CHANNE BED womm, go-go 00-01 so-so \ — — 0000, 0000,� as \ -.0000 Owosso — \ \ \ Q A \ lA J \ \ as a as 0 40 a 80 .a Felt i Q U) 0 Z 0 U) UwwZ i J o O Lu Z 0 L ~ CD Z 0 Q � W Lu J0 m O U) .w o> mE� o(.0 zwti N W ) o wQUzco m W Q Lo > > W UwoQa) z> M Q'rn 0 Z Q O J N ~ O W � N O 06 U z � U (n 0- co Q Q U LLJ LLJ - W J W O 12 Q H Q U Q W z N 0 Q 0 .. .. W Z Z 3: U U Of Q (n LJ W Ch W 2 W tL U Q W, 0 Lu wU) >0 Z a_a �0 W L0 00 It N N 0 L0 It U a- 1Z EARTH WORK SUMMARY TOTAL CUT 800 CY TOTAL FILL 75 CY NET - 725 CY POO' 18.75 2p 2\ POOL C18J5 n J ELEVATION SUMMARY FEATURE ELV. FT TOP OF BERM 23.00 FLASHBOARD INVERT (TEMPORARY POOL) 21.75 DRAWDOWN ORIFICE INVERT (PERMANENT POOL) 20.75 OVERFLOW WEIR 1 INVERT 22.00 OVERFLOW WEIR 2 INVERT 22.25 INFLOW RCP INVERT 22.49 LOW FLOW CHANNEL INVERT 19.75 BOTTOM DEEP POOL 18.75 BOTTOM FOREBAY 19.00 FOREBAY WEIR INVERT 21.25 MIDPOINT WEIR INVERT 20.75 h 20.25 POOL 18 75 21.00 -NNE 22. p0 \ Op •oo :,*,*. t�, U8O705L' 20.50 ME oww-- swoop NO GRADING PLAN J:)OO 00 18. 13570 ZrPo � 1� ` �\ _ 23.00 21-50 '�.► 21.00 i 22.00 2p. p p NOTES: 1. WETLAND CELLS SHALL BE EXCAVATED 3-4" BELOW FINISHED GRADE AND 4" OF TOPSOIL ADDED AND INCORPORATED INTO WETLAND SUBSTRATE. 2. AS GRADING OF SIDE SLOPES AND THE BERMS IS COMPLETED, SEED AND STRAW ALL EXPOSED AREAS AT THE END OF WORK EACH DAY. A CONTRACTOR'S SEED MIX OR MIX OUTLINED ON THE PLANTING PLAN CAN BE USED TO THIS END. 3. THE CONTRACTOR IS RESPONSIBLE FOR PLACING SEED AND STRAW ON ANY DISTURBED AREAS THAT WERE O PREVIOUSLY COVERED WITH TURF GRASS. 4. SEE QUANTITIES AND NOTES SHEET FOR MORE DETAIL. ftkftmft� 0000,OWNER* dup"Es- wo-so swoop 4000 = moom 1 .mop irp - —Now. .-- 40 80 d Feet U) 0 z 0 cn U) U wwz 3j i J OwC)z 0 LL (D z w CO U) O U) w o> mE� 0 z w i° N w U o W Q (> z co m W QLo > > W UwoQa) z> M Q'rn 0 Z Q O J N ~ O W � N O 00 U Z 0' U (n 0- co Q Q U LLJ LLJ O :2Q H 0_ Q U Q 0_ Z (n 0 Y Y Q � � m 0 .. .. W ZZ 3: U U 0_ Q N LJ 0_ 0_ W 2 0_ tL U Q L0 00 N N L ww a- 6- PLANTING PLAN PLANTING SPECIFICATIONSZONE: POOLS, SURFACE AREA = 1,200 SF, DENSITY = 1 STEM / 2.25 SFSYMBOLSCIENTIFIC NAMECOMMON NAMETYPESPACINGQUANTITYNYMPHAEA ODORATAFRAGRANT WATER LILY4" CONTAINER18" O.C.530NUPHAR LUTEUMSPATTERDOCK COW-LILY4" CONTAINER18" O.C.530TOTAL STEMS =1,060ZONE: SHALLOW WATER, SURFACE AREA = 6,260 SF, DENSITY = 1 STEM / 2.25 SFSYMBOLSCIENTIFIC NAMECOMMON NAMETYPESPACINGQUANTITYPONTEDERIA CORDATAPICKERELWEED4" CONTAINER18" O.C.600SCHOENOPLECTUSTABERNAMONTANISOFT STEM BULLRUSH4" CONTAINER18" O.C.500SAGITTARIA LATIFOLIABROADLEAFARROWHEAD4" CONTAINER18" O.C.600SAURURUS CERNUUSLIZARD'S TAIL4" CONTAINER18" O.C.600JUNCUS EFFUSUSSOFT RUSH4" CONTAINER18" O.C.500TOTAL STEMS =2,800ZONE: SHALLOW LAND, SURFACE AREA = 1,560 SF, DENSITY = 1 STEM / 2.25 SFSYMBOLSCIENTIFIC NAMECOMMON NAMETYPESPACINGQUANTITYEUPATORIUM FISTULOSUMJOE PYE WEED4" CONTAINER18" O.C.230LOBELIA CARDINALISCARDINAL FLOWER4" CONTAINER18" O.C.230ASCLEPIAS INCARNATASWAMP MILKWEED4" CONTAINER18" O.C.230TOTAL STEMS =690ZONE: UPLAND, SURFACE AREA = 5,900 SFSYMBOLSCIENTIFIC NAMECOMMON NAMETYPESPACINGQUANTITYEREMOCHLOA OPHIUROIDESCENTIPEDESEED1 LBS / 1000 SF6 LBSCYNODON DACTYLONBERMUDASEED7 LBS / 1000 SF42 LBSPLANTING TECHNIQUESA.INSURE THAT ROOTS, ONCE REMOVED FROM POT, ARESTRAIGHTENED AND FACE DOWNWARD.B.CREATE PLANTING AREA FOR EACH PLANT AND EXCAVATEPITC.PLACE PLANTS IN PIT INSURING ROOTS ARE FACINGCOMPLETELY DOWNWARDD.HEEL IN SOIL AROUND PLANT AND PROCEED TO NEXTPLANTING LOCATIONE.NEWLY-PLANTED PLANTS NEED TO BE FASTENED TO THESUBSTRATE FOR THE ESTABLISHMENT OF NEW ROOTSF.ROOTS SHALL BE SPREAD IN THEIR NORMAL POSITION.ALL BROKEN OR FRAYED ROOTS SHALL BE CUT OFFCLEANLY.G.THE DIAMETER OF THE PLANTING HOLES (PITS) FOR EACHPLANT SHOULD BE AT LEAST THREE TIMES THE DIAMETEROF THE ROOT MASS. SCARIFY THE PLANTING PIT PRIORTO EACH PLANT INSTALLATION.H.SET PLANTS UPRIGHT IN THE CENTER OF THE PIT. THEBOTTOM OF THE ROOT MASS SHOULD BE RESTING ONUNDISTURBED SOIL.I.PLACE BACKFILL AROUND BASE AND SIDES OF ROOTMASS, AND WORK EACH LAYER TO SETTLE BACKFILL ANDTO ELIMINATE VOIDS AND AIR POCKETS. WHEN PIT ISAPPROXIMATELY 23 FULL, WATER THOROUGHLY BEFOREPLACING REMAINDER OF THE BACKFILL. WATER AGAINAFTER PLACING FINAL LAYER OF BACKFILL.J.BROKEN OR DAMAGED PARTS WILL BE CUT BACK TOUNDAMAGED TISSUE, LEAVING AS MUCH GREEN BASALTISSUE AS POSSIBLE ABOVE THE ROOTS. IF MORE THANFIFTY PERCENT (50%) OF THE PLANT IS DAMAGED THENTHE CONTRACTOR SHALL REPLACE THAT INDIVIDUALPLANT.CONTAINER STOCK / BARE ROOTA.STOCK SHALL HAVE BEEN GROWN IN A CONTAINERLONG ENOUGH FOR THE ROOT SYSTEM TO HAVEDEVELOPED SUFFICIENTLY TO HOLD ITS SOILTOGETHER ONCE REMOVED FROM THE CONTAINER.B.CONTAINER PLANTS WILL NEED TO BE WATEREDREGULARLY AND PLACED IN SHADY CONDITIONSUNTIL PLANTING OCCURS.C.BARE ROOT PLANTS ARE FOR IMMEDIATE PLANTING,OTHERWISE SEE (D) BELOW.D.IF BARE ROOT SPECIMENS ARE NOT TO BE PLANTEDWITHIN FOUR (4) DAYS, TEMPORARY HOLDING OFBARE ROOT SPECIMENS ARE TO BE COVEREDENTIRELY BY A SUITABLE MEDIUM (ETC. SOIL,SAWDUST, MULCH OR THE LIKE) AND WATEREDREGULARLY SO AS TO NOT DRY OUT.PLANT LOCATIONSA.NEW PLANTINGS SHALL BE LOCATED WHERESHOWN ON PLAN EXCEPT WHERE CHANGES HAVEBEEN MADE IN PROPOSED CONSTRUCTION.B.NECESSARY ADJUSTMENTS SHALL BE MADE ONLYAFTER APPROVED BY THE OWNER OR PROJECTENGINEER.WATERA.BERMUDA AND CENTIPEDE GRASS SHALL BEWATERED AS NEEDED AFTER SEEDING.B.WATER WETLAND PLANTS AS NECESSARY AFTERPLANTING.C.FOLLOW PLANT SUPPLIER RECOMMENDATIONS FORWATERING FREQUENCY.D.WATER SHALL BE POTABLE AND SHALL NOTCONTAIN ELEMENTS TOXIC TO PLANT LIFE.DESIGN PLANS SOUND RIVERS STORMWATER WETLANDS BEAUFORT CCC PLANTING 7 OF 13 NCSU BAE WEAVER ADMIN. BLD. 3100 FAUCETTE DRIVE RALEIGH, NC 27695 919-515-6803 PROJECT PARTNERS: 582485 #2 PROJECT # PHASE #Feet04080 ELEVATION (FT)ELEVATION (FT)STATION (FT)1819202122231819202122230+000+100+200+300+400+500+600+700+800+90POOLELV. = 18.75 FTTOP OF CHANNELELV. = 20.25 FTPERMANENT POOL ELV. = 20.75 FT3:13 : 13:1EXISTING GROUNDELEVATION (FT)ELEVATION (FT)STATION (FT)1819202122231819202122230+000+100+200+300+400+500+600+700+80DEEP POOLELV. = 18.75 FTTOP OF CHANNELELV. = 20.25 FTPERMANENT POOL ELV. = 20.75 FT3:13:13 : 1 EXISTING GROUNDELEVATION (FT)ELEVATION (FT)STATION (FT)192021222319202122230+000+100+200+300+400+500+600+703:1RIPRAP WEIRELV. = 20.75 FTTOP OF BERMELV. = 23.00 FTUNDERGROUND ELECTRIC LINECROSSES WETLAND AT THIS LOCATION.UNKNOWN DEPTH. HAND EXCAVATE.12" CLASS B RIPRAPCOORDINATE WITH PROJECTENGINEER TO ADJUST RIPRAPLAYER DEPTH AS REQUIRED TOAVOID CONFLICT WITHUNDERGROUND ELECTRICEXISTING GROUNDSECTION A-ASECTION B-BSECTION C-CNOTE - 3:1 VERTICAL EXAGGERATIONNOTE - 3:1 VERTICAL EXAGGERATIONNOTE - 3:1 VERTICAL EXAGGERATIONDESIGN PLANS SOUND RIVERS STORMWATER WETLANDS BEAUFORT CCC SECTION VIEWS 1 8 OF 13 582485 #2 NCSU BAE WEAVER ADMIN. BLD. 3100 FAUCETTE DRIVE RALEIGH, NC 27695 919-515-6803PROJECT # PHASE # PROJECT PARTNERS: ELEVATION (FT)ELEVATION (FT)STATION (FT)192021222319202122230+000+100+200+300+400+500+60LOW FLOW CHANNELELV. = 19.75 FTTOP OF CHANNELELV. = 20.25 FTPERMANENT POOL ELV. = 20.75 FT3:1TEMPORARY POOL ELV. = 21.75 FTELEVATION (FT)ELEVATION (FT)STATION (FT)1819202122231819202122230+000+100+200+300+400+500+60DEEP POOLELV. = 18.75 FTTOP OF CHANNELELV. = 20.25 FTPERMANENT POOL ELV. = 20.75 FT3:13 : 1 TEMPORARY POOL ELV. = 21.75 FTELEVATION (FT)ELEVATION (FT)STATION (FT)18192021222324181920212223240+000+100+200+300+400+45FOREBAY BASEELV. = 19.00 FTPERMANENT POOL ELV. = 21.25 FT3:1SECTION D-DSECTION E-ESECTION F-FNOTE - 3:1 VERTICAL EXAGGERATIONNOTE - 3:1 VERTICAL EXAGGERATIONNOTE - 3:1 VERTICAL EXAGGERATIONDESIGN PLANS SOUND RIVERS STORMWATER WETLANDS BEAUFORT CCC SECTION VIEWS 2 9 OF 13 582485 #2 NCSU BAE WEAVER ADMIN. BLD. 3100 FAUCETTE DRIVE RALEIGH, NC 27695 919-515-6803PROJECT # PHASE # PROJECT PARTNERS: DETAIL A: OUTLET STRUCTURE 2.5" ORIFICE INVERT ELV. = 20.75 FT UPSTREAM 20.00 FT FLASHBOARDS TOP ELV. = 21.75 GROUND SURFACE ELV. = 22.25 FT .00 F Y 4 . q 4 = ELV. = 22.00 FT � 4 / 4 % ......... 4ELV. � 2V.LV AFT q J 4 4• q/ 1 t 4. q i J q4 4 �4 4 4 4'. q 4 / 4 -1• q /¢ ..q 4 4ld 4 8" CONCRETE FOOTING ELV. = 23.00 FT I ELV. = 22.25 FT 4.50 FT 1.00 FT lZ�l� 20.00 FT 13.00 FT 4 .4 . q �4.00 FT � � q.. q •_ :. 4_q 4 / ' 4 q.. � • q ELV. = 22.25 FT ELV. = 23.00 FT q / •. 4 q h q 4 4 -r 4 q J 0 0 4. N N / q N 4 ` 2.00 FT q 4 . 3.50 FT ELV. = 23.00 FT ELV. = 23.00 FT ELV. = 22.25 FT 12" CLASS B RI PRAP ELV. = 19.60 FT ELV. = 19.00 FT ELV. = 18.33 FT rlII I I I I I I I I I q 5.00 FT GEOTEXTILE FABRIC NOTES SIDE 8" CIP CONCRETE WEIR 4 a ELV. = 22.00 FT q 4 TOP FLASHBOARD. = 21.75 FT 4 � 4 /. 4 / 4 4 • -� q 4 ¢ ELV. = 20.25 FT I q ¢ 4 4 1 q 5C q ELV. = 19.00 FT 4 0 0 6.50 FT 4.00 FT ELV. = 19.75 FT USE 4000 PSI CONCRETE. REINFORCING SHALL CONSIST OF WELDED WIRE FABRIC AND #4 REBAR @ 12 IN O.C. ALL SIDES. PROVIDE MIN. 1.5 IN COVER FOR REINFORCING STEEL ON ALL SIDES. PROVIDE ALL REINFORCING STEEL WHICH MEETS ASTM A615 GRADE 60 AND WELDED WIRE FABRIC CONFORMING TO ASTM A185. 5. CONSTRUCTION METHODS SHALL FOLLOW ALL APPLICABLE ASTM AND ACI 2" STAINLESS STEEL OR ALUMINUM STANDARDS. CHANNEL EMBEDDED IN CONCRETE FOR FLASHBOARDS ALL SIDES 6. INSTALL 2 IN STAINLESS STEEL OR ALUMINUM GUIDES FOR FLASHBOARDS. GUIDES SHALL BE EMBEDDED IN CONCRETE AS SHOWN. 7. RISER BOARDS SHALL BE PRESSURE TREATED PREMIUM GRADE DOUGLAS FIR RATED FOR WATER CONTACT. BOARD SHALL FIT TOGETHER WITH V-TYPE JOINT. 1.00 FT 0.66 FT (8 IN) 2' 1.00 FT 3. 8. CONTRACTOR SHALL PROVIDE TWO (2) SETS OF REPLACEMENT BOARDS. 9. INSTALL 28 IN X 2 IN FLASHBOARDS. TOP FLASHBOARD ELV. = 21.75 FT. 10. INSTALL 2.5 IN PVC ORIFICE IN BOTTOM FLASHBOARD, INVERT ELV. = 20.75 FT. 0 z Q U~uU U�WQ 0Lu0�LL Q>::)(n Lu 00 � O J Lu � O U) Lu o> mELo Qo zwl` N C,wUr0 wQUz00 m Lu Q (� U> LL Q O J i C)woQ� Z>Ma'rn w � w 0 Lu Z M U Lu O ry A, I YD C� 11� W V � Lu W cm W Z Q O J N ~ � O w w N o cd U Z (Y- U cn m m Q Q U Ld w w O Q � ao� Q U Q d Z Ul c� w 0 Y Y Q m 0 w z z � U v of Q En- w o- af w = w tL U Q L0 00 It N N 00 it L0 �4t U Lu w � d DETAIL B: FOREBAY WEIR CROSS SECTION - 6 FT ELV. = 23.00 Fl WOVEN GEOTEXTILE FABRIC ELV. = 23.00 FT .1 10 FT 'ELV. =21.25FT DETAIL C: MIDPOINT WEIR CROSS SECTION 20 FT 7 FT RIPRAP ELV. = 20.75 FT /— 12 INCH 8 FT - -ELV. = 23.00 FT LAYER CLASS B RIPRAP WOVEN GEOTEXTILE FABRIC 12 INCH LAYER CLASS B RIPRAP ELV. = 23.00 FT -7-I-1tl Ifil �1 I T-T 7 7 1 T-T DETAIL D: FOREBAY WEIR PROFILE VIEW 12 INCH LAYER CLASS B RIPRAP 6.00 FT -1- 4.00 FT RIPRAP ELV. = 21.25 FT ELV. = 18.75 FT WOVEN GEOTEXTILE FABRIC 5.00 FT ELV. = 19.00 FT 12 INCH LAYER CLASS B RIPRAP ELV. = 18.75 FT WOVEN GEOTEXTILE FABRI( NOT TO SCALE UNDERGROUND ELECTRIC IN THIS LOCATION. COORDINATE WITH PROJECT ENGINEER TO ADJUST DEPTH OF RIPRAP IF NECESSARY. HAND EXCAVATE IN THIS AREA. NOT TO SCALE DETAIL E: MIDPOINT WEIR PROFILE 6.00 FT 6.00 FT RIPRAP ELV. = 20.75 FT 6.00 FT UNDERGROUND ELECTRIC IN THIS LOCATION. COORDINATE WITH PROJECT ENGINEER TO ADJUST DEPTH OF RIPRAP IF NECESSARY. HAND EXCAVATE IN THIS AREA. NOT TO SCALE 0 z c) U�WQ 0LULL Q��U) 0- U) i 0� U) J Lu00�00 O w o> mEq) CD Zwr-_ F N w U o Lu < 00 mwQ�(n > > � Lun U) Q o � UwoQrn Z 3: M Q� rn wLL m =O w _� N N U) Ld J r Z Q a a W 0 _ Lu Lu W cm W 0 Z Q o J N ~ � O w LLj N o00 CZof U N 0- m Q Q U Ld wLd w O Q Q U Q Z cn c� �L,o Q m 0 w Z Z Q m tL U Q L0 00 N N 0 L0 it U w w STEEL POST2'-0"WOVEN WIRE FABRICVARIABLE AS DIRECTED BY THE ENGINEER8' MAX.GRADEMIN. 12-1/2 GA.INTERMEDIATEWIRESMIN. 10 GA.LINE WIRESTREE PROTECTION AREADO NOT ENTERORANGE, UV RESISTANTHIGH - TENSILE STRENGTHPOLY BARRICADE FABRIC (TYPICAL)ORANGE, UV RESISTANTHIGH - TENSILE STRENGTHPOLY BARRICADE FABRIC (TYPICAL)WARNING SIGNPLASTIC ORWIRE TIESFRONT VIEWSIDE VIEWWARNING SIGN36"4'-0" 1. TREE PROTECTION FENCING MUST BE INSTALLED AT A MINIMUM RADIUS OF TREE DRIP LINE2. THE TREE PROTECTION FENCING MUST REMAIN IN PLACE FOR THE DURATION OF THE PROJECT3. ATTACH SIGNS SECURELY TO FENCE POSTS AND FABRIC.4. SIGNS ARE TO BE MADE OF DURABLE, WEATHERPROOF MATERIAL WITH LETTERS A MINIMUM OF 3" HIGH AND CLEARLY LEGIBLENOTES:MIN. DRIP LINE DIMENSIONSTOP VIEWDRIP LINEFENCINGSTEEL POSTFRONT VIEWSIDE VIEW2'-0"3'-0"26"FILL SLOPEGRADEWOVEN WIRE FABRICVARIABLE AS DIRECTED BY THE ENGINEER8' MAX.GRADESILT FENCE FABRICINSTALLED TO SECONDWIRE FROM TOPMIN. 12-1/2 GA.INTERMEDIATEWIRESMIN. 10 GA.LINE WIRES1.2.END OF SILT FENCE NEEDS TO BE TURNED UPHILL.FLOW SHALL NOT RUN PARALLEL WITH THE FENCE.NOTES:3.4"MINSILT FENCE GEOTEXTILE FABRIC*SEE N.C. STATE DENR PRACTICE STANDARDS & SPECIFICATIONSSEDIMENT FENCE SET FOR CONDITIONS WHERE PRACTICE APPLIES;PLANNING CONSIDERATIONS & DESIGN CRITERIA.PLASTIC ORWIRE TIES6"MINFRONT VIEWHARDWARE CLOTHFILTER OF #57WASHED STONEBURY WIRE FENCE,FILTER FABRIC,AND HARDWARECLOTH IN TRENCH.SILT FENCE4' MINSECTION VIEWTOP OF SILT FENCEMUST BE AT LEAST 1'ABOVE THE TOP OFTHE WASHED STONE.STEEL POSTWOVEN WIRE FABRIC3' FILTER FABRIC APRONON GROUNDBURY 6" UPPER EDGE OFFILTER FABRIC APRON IN TRENCH2 :116"MINBURY WIRE FENCE ANDHARDWARE CLOTH6"4"STEEL POST SETMAX 2' APART MIN2' INTO SOLID GROUNDFILTER CLOTH1.5'CLASS B RIP-RAP4' TO 6'NOTES1. PLACE STONE TO THE LINE AND DIMENSION SHOWN IN THE PLAN ON A FILTER FABRIC2. KEEP THE CENTER STONE SECTION AT LEAST 9 INCHES BELOW NATURAL GROUND LEVEL3. EXTEND STONE AT LEAST 1.5 FEET BEYOND THE DITCH BANK TO KEEP WATER FROM CUTTING4. SET SPACING BETWEEN DAMS TO ASSURE THAT THE ELEVATION AT THE TOP OF THE LOWER5. PROTECT THE CHANNEL AFTER THE LOWEST CHECK DAM FROM HEAVY FLOW THAT COULD6. MAKE SURE THAT THE CHANNEL REACH ABOVE THE MOST UPSTREAM IS STABLE.7. ENSURE THAT OTHER AREAS OF THE CHANNEL, SUCH AS CULVERT ENTRANCES BELOW THE12" OF NCDOT #5OR #57 WASHED STONE2' MAX ATCENTERCROSS-SECTION VIEWFOUNDATION.WHERE THE DAM ABUTS THE CHANNEL BANKS.AROUND THE ENDS OF THE CHECK DAM.DAM IS THE SAME AS THE TOE ELEVATION OF THE UPPER DAM.CAUSE EROSION.CHECK DAMS, ARE NOT SUBJECT TO DAMAGE OR BLOCKAGE FROM DISPLACED STONES.DETAIL G: TEMPORARY SILT FENCEDETAIL I: TYPE B ROCK / SILT CHECK DAMDETAIL F: TREE PROTECTION DETAILDETAIL H: TEMPORARY SILT FENCE OUTLETNOT TO SCALENOT TO SCALENOT TO SCALENOT TO SCALEDESIGN PLANS SOUND RIVERS STORMWATER WETLAND BEAUFORT CCC S&EC 12 OF 13 NCSU BAE WEAVER ADMIN. BLD. 3100 FAUCETTE DRIVE RALEIGH, NC 27695 919-515-6803 PROJECT PARTNERS: 582485 #2 PROJECT # PHASE # CONSTRUCTION QUANTITIESCONSTRUCTION NOTESITEMQUANTITYUNITSNOTESSTANDARD CONST. ENTRANCE1EA.SEE SHEET 3TEMPORARY SILT FENCE650LFSEE SHEET 3 AND SHEET 12 DETAIL C.SILT FENCE OUTLET2EA.SEE SHEET 3 AND SHEET 12 DETAIL D.TYPE B CHECK DAM1EA.SEE SHEET 3 AND SHEET 12 DETAIL E.DEMO AND DISPOSE OF 12" HDPE40LF.SEE SHEET 5OUTLET RIPRAP STABILIZATION1EA.SEE SHEET 5EARTHWORK875CYCUT: 800, FILL: 75, NET: -725DISPOSE OF EXCAVATED SOIL500CYSOME QUANTITY OF SOIL SHALL BE PLACEDONSITE IN COORDINATION WITH BCCC STAFF.SEE SHEET 3. EXCESS SOIL SHALL BE HAULEDOFFSITE AND DISPOSED OF.TOPSOIL110CY4" LAYER OF TOPSOIL IN WETLAND CELLSCONCRETE OUTLET STRUCTURE6CYSEE SHEET 5 AND SHEET 10 DETAIL ACLASS B RIPRAP50TONINLETS AND WEIRS (900 SF)WOVEN GEOTEXTILE - STABILIZATION1,000SFFOREBAY WEIRS, INLETS AND SPILLWAYSWETLAND PLANTS4,550EA.SEE SHEET 6GRASS SEED48LBS.SEE SHEET 6TEMPORARY SEEDING ANDSTABILIZATION2500SYSEED AND STRAW ALL EXPOSED AREAS AT THEEND OF EACH DAYGENERAL NOTESA.THE CONTRACTOR SHALL CALL FOR A UTILITY LOCATE BEFORE BEGINNING ANY DIGGING. THECONTRACTOR SHALL NOT ASSUME THAT UTILITIES ARE LOCATED WHERE SPECIFIED. THE CONTRACTOR ISRESPONSIBLE FOR ANY AND ALL DAMAGES THAT OCCUR DUE TO INTERFERENCE WITH UTILITIES.B.THE CONTRACTOR TAKES FULL RESPONSIBILITY FOR ALL LEGAL AND SAFETY REQUIREMENTS FORUTILITIES.C.CONTRACTOR SHALL COORDINATE WITH THE CITY OF WASHINGTON, NC TO TURN OFF POWER DURINGCONSTRUCTION.D.CONTRACTOR IS RESPONSIBLE FOR REMOVAL AND DISPOSAL OF ALL EXCESS EXCAVATED MATERIAL.E.THE CONTRACTOR IS RESPONSIBLE FOR PLACING SEED AND STRAW ON ANY DISTURBED AREAS THATWERE PREVIOUSLY COVERED WITH TURF GRASS. STABILIZE WITH WITH MATTING AS REQUIRED TOPREVENT EROSION.F.CONTRACTOR MUST BE WILLING TO WORK WITH AND ACCEPT OVERSIGHT FROM NCSU BIOLOGICAL &AGRICULTURAL ENGINEERING PERSONNEL, BCCC REPRESENTATIVES, AND SOUND RIVERSREPRESENTATIVES.G.CONTRACTOR IS RESPONSIBLE FOR REMOVAL OF ALL SEDIMENT AND EROSION CONTROL MEASURESUSED DURING CONSTRUCTION.H.CONTRACTOR IS RESPONSIBLE FOR REMOVING REFUSE FROM SITE AND RETURNING IT TOPRE-CONSTRUCTION AESTHETICS.I.CONTRACTOR SHALL USE PUMPS AND DIVERSIONS AS NECESSARY TO REMOVE WATER TO ALLOW FORCONSTRUCTION ACTIVITIES.WETLAND NOTESJ.SILT FENCING, TREE PROTECTION, AND ROCK CHECK DAMS MUST BE INSTALLED AS SHOWN ON SHEET 3AS DESIGNATED IN DETAILS ON SHEET 12.K.EXCAVATION SHOULD BEGIN AT THE OUTLET BY EXCAVATING THE OUTLET POOL FIRST ANDCONSTRUCTING THE CONCRETE OUTLET STRUCTURE (DETAILS A ). RISER BOARDS PRESSURE TREATEDPREMIUM GRADE DOUGLAS FIR RATED FOR WATER CONTACT. BOARD SHALL FIT TOGETHER WITH V-TYPEJOINT. A 2.5-INCH DIAMETER PVC PIPE SHOULD BE PLACED THROUGH A HOLE DRILLED IN THE FLASHBOARDRISER WITH AN INVERT ELEVATION OF 20.75'. CONTRACTOR SHALL PROVIDE TWO (2) SETS OFREPLACEMENT BOARDS TO BCCC.L.BEGIN GRADING THE WETLAND FROM THE OUTLET POOL AND MOVE TOWARD THE INLET. EXCAVATIONNORMAL POOL ELEVATION IS 20.75', WITH THE DEEP POOLS BEING 2.00 FEET DEEP. INTERNAL FEATURESHAVE 3:1 SLOPES. WETLAND SIDE SLOPES ARE 3:1 AS SHOWN.M.AS GRADING OF SIDE SLOPES AND THE BERMS IS COMPLETED, SEED AND STRAW ALL EXPOSED AREAS ATTHE END OF WORK EACH DAY. A CONTRACTOR'S SEED MIX OR MIX OUTLINED ON THE PLANTING PLAN CANBE USED TO THIS END.N.WETLAND CELLS SHALL BE EXCAVATED 3-4" BELOW FINISHED GRADE AND 4" OF TOPSOIL ADDED ANDINCORPORATED INTO WETLAND SUBSTRATE.DESIGN PLANS SOUND RIVERS STORMWATER WETLAND BEAUFORT CCC QUANTITIES 13 OF 13 NCSU BAE WEAVER ADMIN. BLD. 3100 FAUCETTE DRIVE RALEIGH, NC 27695 919-515-6803 PROJECT PARTNERS: 582485 #2 PROJECT # PHASE #