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HomeMy WebLinkAbout20120124 Ver 1_Site Plan_20120215• ORR"s I'MI HAYNES LAKE DAM FORSY 11_7H Winston Salem, NC Pin No.: 6806-61-9437.00 and SHEET LISTING: Line Legtnd • 08.11.2011 - Revisions Per 5.25.2011 DENR letter 11.28.2011 -Revisions Per 9.30.2011 DENR letter Svmbol-Lea-end \\Server\storage\NewData\AutoCAD\Land Projects R2\2011\MISC\11100010\dwg\Milhaven Lakes SUBMITTED REV 11.28.1l.dwg, 11/30/20113:06:36 PM PIN: 6806-61-4446.00 Block/Lot: 6235/008 Owner: D Coleman and Christine 0 Hastings Deed Bk-Pg: 2084-3878 SSA flhtain i-qQPmPntz qQ npPrIpti Silt Fence stone outlet Details page right. Existing field I Use portion of circular private street for staging of materials and equipment as needed and approved by Milhaven Association. Remove fence to provide for entry of equipment and materials. To be repla ced upon completion of work. Emergency Spillway to be lowered slightly as part of repairs. See Engineering drawings for details. limits J, k Lower water to "approx. 8_30' ,for constfuction 777 Obtain easements as needed for work on others. needed. Tobereplaced upon completion of work. PIN: 6806-61-6144.00 Block/Lot: 3414A/001 Owners: Doffel Brown and Tanya R Wiley Deed Rk-Psi F Contours shown. Field located and tied to as-built elevations for adjacent sewer line. NOTE: Structural stone shall be (Class "B") stone for erosion control purposes. Sediment control stone shall be No. 5 or No. 57 stone. Structural Stone CROSS SECTION Total Acreage: --4.68 Ac± - -- -- Acres. Disturbed Area: — 21,500 SF; -0.49 Ac. ± —_ Soils: — FaF, FcD2; Fairview Fine—and Clay 0 2' Silt Fence —SF— Construction Entrance/Exit Construction Limits —Limits— Diversions Tv Drainage Area Limits —D— Sediment Trap Baffles z 1AJ Inlet Protection 0 Existing Grade (2007 GIS) --- <E:� Finished Grade (Field Located) LO F— Li V) _J 0 Zw M F— Uj C*4 3: $ O O O O O O O O PIN: 6806-61-4446.00 Block/Lot: 6235/008 Owner: D Coleman and Christine 0 Hastings Deed Bk-Pg: 2084-3878 SSA flhtain i-qQPmPntz qQ npPrIpti Silt Fence stone outlet Details page right. Existing field I Use portion of circular private street for staging of materials and equipment as needed and approved by Milhaven Association. Remove fence to provide for entry of equipment and materials. To be repla ced upon completion of work. Emergency Spillway to be lowered slightly as part of repairs. See Engineering drawings for details. limits J, k Lower water to "approx. 8_30' ,for constfuction 777 Obtain easements as needed for work on others. needed. Tobereplaced upon completion of work. PIN: 6806-61-6144.00 Block/Lot: 3414A/001 Owners: Doffel Brown and Tanya R Wiley Deed Rk-Psi F Contours shown. Field located and tied to as-built elevations for adjacent sewer line. NOTE: Structural stone shall be (Class "B") stone for erosion control purposes. Sediment control stone shall be No. 5 or No. 57 stone. Structural Stone CROSS SECTION Total Acreage: --4.68 Ac± - -- -- Acres. Disturbed Area: — 21,500 SF; -0.49 Ac. ± —_ Soils: — FaF, FcD2; Fairview Fine—and Clay 0 2' Silt Fence —SF— Construction Entrance/Exit Construction Limits —Limits— Diversions Tv Drainage Area Limits —D— Sediment Trap Baffles z 1AJ Inlet Protection 0 Existing Grade (2007 GIS) --- <E:� Finished Grade (Field Located) • J& "ON 00100111111590 40 VIVjry"Alf ',[#][ • W-11 ilk I sm r •: it If T_ E o 0 0 ------ Z 00) 0 (14 . LLJ 00 L.Li 0 1 z M F_ 00 LAJ LLJ (A (C) z LLJ • 1 z 1AJ _J (A 1�0 0 0 z 0 W V) W W 0 0 CL M LO F— Li V) _J 0 Zw M F— Uj C*4 3: $ WRAWN BY: ATC [W-ATE: 03.30.2011 JOB NO: 11,100.010 REVISIONS: 08.25.2011 -Revisions Per 5.25.2011 DENR letter 11.28.2011 - Revisions Per 9.30.2011 DENR letter \\Server\storage\NewData\AutoCAD\Land Projects R2\2011\MISC\11100010\dwg\Milhaven Lakes SUBMITTED REV 11.28.11 EC ONLY.dwg, 11/30/20113:30:40 PM Steel c post I= 2 T 1 4� k .. ON Plastic or wre ties 0 SEEDING shall meet requirements established by the Erosion Control Technology 1. Rip the area to be seeded to a minimum depth of 4-6 inches. 2. Remove all loose rock, roots, etc. leaving surface smooth and uniform. 3. Apply seed, agricultural lime, fertilizer, and superphosphate uniformly and mix with topsoil. Application rates below*. Bridges on 4. Seed on a freshly prepared seedbed and cover the seed lightly with seeding equipment or "Cultipack" after seeding. 5. Mulch immediately after seeding and anchor mulch. Application Rates: clearly marked on the erosion Agricultural Limestone - 2 Tons/Acre Fertilizer - 10:10:10 at 800-1000 Lbs/Acre SUDerphosphate - 500 Lbs./Acre of 20% Analysis Superphosphate Mulch 1.5 Tons Small Grain Straw/Acre (Approximately 60 Bales) Anchor Crimp Straw into soil with Machine or tack with liquid Asphalt at 400 Gallons/Acre or Emulsified Asphalt at 300 Gallons/Acre Plants % Mixture Plantina Rates/Acre Planting Dates Tall Fescue 80-150 Lbs/Acre Aug. 15 thru Oct. 15 Tall Fescue 100 Lbs/Acre Feb. 15 thru May Tall Fescue 50 Lbs/Acre Feb. 15 thru Apr. 30 Scar. Tall Fescue & 60 Lbs/Acre July thru August Browntop Millet or 30 Lbs/Acre Sorghum-Sudan Hybrids (Millet & Surghum must be kept at 10-12" Max. Height) Tall Fescue & 70 Lbs/Acre Nov. 1 thru Jan. Rye (Grain) 25 Lbs/Acre Common Bermuda Grass 8-12 Lbs/Acre (Hulled) Apr. 15 thru June 30 00 15-20 Lbs/Acre (Unhulled) Feb. 1 thru March F, !MAIM, All IIIIIII 100' Min OR 4X Circumference of largest tire. Whichever is greater. PLAN VIEW 100"Min. FP-- �vi ,_-+ nn 6*1211MR11112 "0 Compacted Soil Coarse Aggregate Flow 18" Min. ME- N • = i• 3:1 Maximum Flow S A 0 ope 0 1 18" Min. f .1. 9' Typical Temporary Gravel Diversion Dike for Vehicle crossing The SC150 shall meet requirements established by the Erosion Control Technology Council (ECTC) Specification and the US Department of Transportation, Federal Highway Administration's (FHWA) Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects, FP-03 Section 713.17 as a type 3.B Extended-term Erosion Control Blanket. The SC150 is also available with the DOT SystemTM, which consists of installation staple patterns clearly marked on the erosion control blanket with environmentally safe paint. The blanket shall be manufactured with a colored thread stitched along both outer edges (approximately 2-5 inches [5-12.5 cm] from the edge) as an overlap guide for adjacent mats. Material Content C Z LLJ M F- Matrix: 70% Straw Fiber 0.35 lbs/yd2 (0.19 kg/m2) 30% Coconut Fiber 0.15 lbs/yd2 (0.08 kg/m2) Nettings: Top -Heavyweight photoclegradable with UV additives 3.0 lb/1000 ft2 ( 1.47 kg/100 m2) Bottom -Lightweight Photodegradable 1.5 lb/1000 ft2 ( 0.73 kg/100 m2) Thread: Degradable SC150 is available in the following standard roll sizes: 00 Width: 6.67 ft (2.03 m) 16 ft (4.87 m) Length: m m Weight: t 10% 44 lbs (19.95 kg) 105.6 lbs (47.9 kg) Area: 80.0 yd2 (66.9 m2) 192 yd2 (165.5 m2) 14MA ZIRIARKMA NVEMAIMUM10TAI RUA I a II STAPLE PATTERN GUIDE S.67 (2.03 M) WIDE ROLLS X X 1.7 STAPLES PER SQ. YD. & a Fliff' Y"A Ago if E • 0 Z 0 o 6 c- W LJ 0 't 0a) M ry 00 LAJ Z LLJ C Z LLJ V) LLJ K) 0 Z 0 Z (1) 0 a) V) Ld 0 CL X-0 < M C) C Z LLJ M F- DRAWN BY: ATC DATE: 08.25.2011 ll=M 11 1i REVISIONS: 08.25.2011 - Revisions Per 5.25.2011 DENR letter 11.28.2011 -Revisions Per 9.30.2011 DENR letter SCALE: Not to Scale SHEET NO: \\Server\storage\NewData\AutoCAD\Land Projects R2\2011\MISC\11100010\dwg\Milhaven Lakes SUBMITTED REV 8.11.11 EC ONLY.dwg, 11/30/20113:26:46 PM 7� 6NNOW r-.4 C) C 00 OC �Ic 00 114C C) r-I 0 DRAWN BY: ATC DATE: 08.25.2011 ll=M 11 1i REVISIONS: 08.25.2011 - Revisions Per 5.25.2011 DENR letter 11.28.2011 -Revisions Per 9.30.2011 DENR letter SCALE: Not to Scale SHEET NO: \\Server\storage\NewData\AutoCAD\Land Projects R2\2011\MISC\11100010\dwg\Milhaven Lakes SUBMITTED REV 8.11.11 EC ONLY.dwg, 11/30/20113:26:46 PM Iijesign i-ne: /-v i ears I-ace Area @ Normal Pond: 3.3 ± Acres y Surf Normal Pond Elev: 840.0'based on as-built sewer line data IEmergency Spillway: 25Earthen Channel E, Principal Spillway: 6'x 6'Concrete Riser and 36" DI Spillway IStructural Height of Dam: 21.0' IIII,7 K -PeeDee Basin 1> IR IPVT Flows to: Muddy Creek _P1 IIZ River Basin: Yadkin IL2 PURPOSE OF REPAIR PLAN T LU This repair plan is to address a NCDENR Notice of Deficiency Dated Oct 14, 2010 �OA and supporting documents addresses the following areas: and subsequent NC DENR Notice of Inspection dated February It, 201 1. The plan Illl1. Calculations and models of the adequacy of the principal and emergency spillway to carry the design storm. X X 2. A redesign of the principal spillway system. I? co > 4 , e N i" / , 1, I �\,N 3. A new design for a bottom drain system. The original spillway and drain N--7 system was abandoned and grouted closed some years ago. The current system that replaced the original does not have a bottom drain. 4. A review of the emergency spillway to ensure it carries the design storm plus Istreet storm drainage routed to this channel. INAVEN 5. A repair of the wave erosion on the upstream slope of the dam. AQ ILAKE DRIVO IIEY IIICONSTRUCTION SEQUENCE f II . Obtain Dam Repair, Grading, and all other applicable permits prior to any land I< O disturbing activity or construction. I. . ... . . . t IContractor shall schedule pre-construction meetings with Dam Safety Ipersonnel, Erosion Control authority, Client and Engineer to discuss this I< project and erosion control plan. IV_ 3. Flag all construction limits. Install silt fence and any other erosion control r measures needed as shown on the approved plan. I,P AT: N36.0634 4. Contractor may pump or drain pond to elevation as indicated on EC Plans. 0.1954 LONG: W80.1954 5. Install proposed concrete riser box and principal spillway barrel as shown and < y P > specified on approved plans. W V, "N' 113 6. Remove the existing 6" riser and barrel system. Remove 18" RCP storm IIdrainage pipe back to connection with existing 6 spillway barrel. > ?" ? 7. Install the siphon drain system as shown and specified on the approved plans. I< ll7� Ile as shown and specified on the approved plans. < 8. Revise and reshape the emergency spillway and all necessary drainage channels 9. Repair wave erosion on upstream slope of dam using riprap as shown on approved plans. I10. Stabilize all disturbed areas and provide permanent seeding as specified on the > 147220 Sq. Ft. Ir approv 3.38 Ac. ed plans. IA I 1. Client's engineer shall provide as-built drawings to NC Dam Safety Engineer \1�7 and receive authorization to operate dam prior to returning water level to normal levels. IL INOTES FOR THIS SHEET: A f 1. This map is a compilation of information from deeds, county tax information, structure urainage Area s and topographic information furnished by the Forsyth County GIs. It is shown for for the purposes of defining the overall drainage area and general surrounding features to the site. Field data has been collected in the 2563667 Sq. Ft. -urther detailed maps to follow. immediate area of the dam and lake for f U /r . .. . ..... 58.85 Ac. T I2. This site is not currently located in a FEMA designated flood area. IATER\COU N IIL )0�1 14 LLW/ IIPVT /f "fill 7 I< 7 J 0 y J, IEMERGENCY SPILLWAY CROSS SECTION (N.T.S.) A I,GLADSTONEBURY ROAD,­ NI/X IIIfI4 of Dam EL: 842.8' IITop 1/3 PMP EL: 841.8' > > — — — — — — — — — Ile 100 Year EL: 841.4' T1 50 Year EL: 84 ]X .......... ......... .. < S, 71 pillwa LL: 64 I U I> 25Year EL: T40. 01 J//7 IN25.0' IT '01 IG s SN) NRO CO R 173 IIr INIIT -7— C3 t3l r T" D L V IRPAD IALLISTAIR IIr < 1A, > .. ....... U I T_ E ot 0 r-, Z 0 0 6) 0 r-� C LAJ 00 _t *C Ld t 0(1) Z ry Z r,.- - 00 UJ LAJ V) Z C (1) Z LA C LJ PO 0 Z 0 r V) UJ LJ 0 X -0 Lr) LL- < M (0or) LLJ 0C L.Li LLJ F_ LIJ 0 04 3:: @ Momalxwl JOB NO: 11100.010 REVISIONS: e r I t.28.2011 - Revisions Per 9.30.2011 DENR letter \\Server\storage\NewData\AutoCAD\Land Projects R2\2011\MISC\11100010\dwg\Milhaven Lakes SUBMITTED REV 11.28.1l.dwg, 11/30/2011 3:05:51 PM 7� 6mmoW 40or AIM% 0C 00 C) AOOW#& CLIENT/OWNER: MILHAVEN ASSOCIATION, INC C/O Robert Moore 3151 Milhaven Lake Drive Winston Salem.) NC 27106 Phone: 336.768.2151 Email: lkmoore@triad.rr.com DRAWN BY: ATC DATE: 03.30.2011 JOB NO: 11100.010 REVISIONS: e r I t.28.2011 - Revisions Per 9.30.2011 DENR letter \\Server\storage\NewData\AutoCAD\Land Projects R2\2011\MISC\11100010\dwg\Milhaven Lakes SUBMITTED REV 11.28.1l.dwg, 11/30/2011 3:05:51 PM M Flowable fill poured around blocks to form cradle. Minimum 8" either side larger than outside pipe diameter. Cradle should extend from riser box to just beyond connection between first and second section of pipe. 3 TIMEL_ S 1.1 *UTLET PROTECTION DETAIL N.T.S. PIPI 6" OF #57 STONE UNDEM CLASS 2 STONA IUM101MAJAINTA I 12101a am KAI 10 1 A mmi •� 11E 11� 36"" D.I.P. Restrained Push-on Spillway. Alljointstobe -- — gasketed for water tight fit Plastic Solutions Inc. (877-877-5727) trash rack with access or equal A-Lok Watertight sea] or Poured concrete collar. (3000psi). equal at connection to Riser I' Min. in all directions outside pipe. Spillway INV: 836.0' 7Z New Normal Pond EL: 840.0' If riser should require sections then all joints to be sealed with sealant rated for continuous water immersion. See specs. w. J1 '1-_-::7_J 4 4 4 4 q-- Ar ------ ----- ---- w, Poured concrete cradle. -44 6' x66' Precast Riser Box w/1 1W Grout flow lin Riser and Anti-Float shall be installed See Details. - 3.25'Deep Anti-Float Pour in, A into spi I [way e pipe ..... on firm natural ground. If sediments 0 Bottom of Box; 3000 PSI Concret or silt is encountered in location V) C V) UJ K) • z 0 shown then contractor shall notify V) LLJ U.J 0 X er engine to evaluate a more suitable LLJ < location for the riser and block. Z LLJ M LLJ 7777-7777- 6 77­7 7 H I Con EL: I Soils testing shall be required to determine if spillway trench soils provide for adequate bearing for use of restrained joint pipe without additional thrust blocking. 2. Contractor shall notify Engineer immediately if soil bearing properties are inadequate and require additional thrust blocking/collars. 3. All joints to be restrained push-on sealed with gaskets for water tight fit. Existing Ground Elevations T_ E o 0 0 z 6) Ui oo UJ C) b (1) W De- Z 0 0) •0 I I 0 UJ C • 0) z LA V) C V) UJ K) • z 0 z V) 10 V) LLJ U.J 0 X 0C LLJ < V) I Z LLJ M LLJ 06 6 00 L.I.M.01.01:18.1i 00 00 .!! nial 00 I 00 I 00 I 00 . L-i'min 00 I Existing Ground Elevations T_ E o 0 0 z 6) Ui oo UJ C) b (1) W De- Z 0 0) •0 UJ LLJ • V) - :2 0 UJ C • 0) z LA V) C V) UJ K) • z 0 z V) 10 V) LLJ U.J 0 X M LLJ < V) I Z LLJ M LLJ o C*4 DRAWN BY: ATC DATE: 03.30.2011 JOB NO: 11100.010 REVISIONS: 08.11.2011 - Revisions Per 5.25.2011 DENR letter 11.28.2011 - Riser Anti-float and optional drain revised SHEET NO: C -2 WIWI- 60' 83 irk 1 1. e I sec io I n -See tails,-and specs. 82 1+87 I I Fil t-e-Ir -di rag. m- drain. #79M st0­ e and 4" Sch 40 perfor d-pipe tecoixapact lifts - shall -la 820' equipmen heav 860'- Side Filter Diaphragm 830 Bottam Filter Diaphragm 8201-- -, n, _?n, • N36.0634 I �- WRn I 05141 01 Sand filter diaphragm. (De-skewed to cross section as shown) See details and specs. #78M stone course aggregrate core NOTES: I Hand compact soils from bottom of pipe to Tabove pipe with vibratory hand compactor. See Specs. 2. Remainder of any soils greater than Tover pipe can be machine compacted. See specs. PIPE ENCASEMENT AND BACKFILL DETAIL N.T.S. I ZONE :G] INCHES MI. ZONE B 010110180511 ► A' * 1t . A . I - .. 1-k. V 41W A A 12 A' A'. A a. 4 4 4 ..4 4 4 a 4 'A A A 4 .4 361# 4*A A4­ A 4.' 4• 4• 4 4 d 4* . 4 4 4. .-:4 ;W '4. A -4 44 A .7 0 4 1W 0 6 INCHES MIN. 4 A �,19 11111,2001il r,m2q NOTES: I Prior to compacting the backfill around the pipe, precautions should be taken to weight the pipe to prevent raising it above the desired grade. 2. Hand compacting or manually directed power equipment compaction is required within areas A,13 & C. (minimum width of 7 feet and 2 feet above the crown of the pipe) 3. Backfill material: ZONE A - Backfill shall be free of roots, stumps, wood, rubbish, stones greater than V, frozen or other objectionable materials. Fill material shall conform to Unified Soil Classification GC, GM SC, CH, or CL and must have at least 30% passing the #200 sieve. Consideration may be given to the use of other materials in the backfill if designed by a geotechnical engineer. Such special designs must have construction supervised by a geotechnical engineer. ZONE B - backfill shall be free of stones and rocks greater than I inch in diameter and earth clods greater than 2 inches in diameter. ZONE C - minimum height is 2 feet above the top of the pipe. use a silty or a clayey backfill free of stones and rocks greater than 3 inches in diameter. 4. Compact ZONE B & C fill in 4" layers at optimum moisture content (or slightly higher). am x XI A i X_ X Fin S ar san A 4" Sch 40 Perforated PVC. See Specs. Capped on end. Do NOT use filter fabric around pipe. Holes must be slightly smaller than minimum stone size (3/16" Holes) Place cleanouts at 75' intervals. Filter Diaphragm drain follows pipe trench to outlet in downstream wing wall, Use horizontal and vertical bends as needed to follow along side spillway pipe. 2.01 A i 1 IJ al #78M Stone Filter Core (1/2"-3/8" in size) Na UT Ground "Washed and compacted in place 9 -10' Pipe Trench Bottom — Top View a T_ E 6) 04 C� 6=mW LLJ •o r LLI vt 0(i) Z Q� Z . •• LLJ LAJ • -,t 0) Z 0 • LLJ C (1) Z LLJ C r 0 LLJ r1e) • Z 0 Z 0 0 = V) LLJ LLJ 0 CL X-0 L0 I_ LL1 < M V_N 0 Z LLJ M LLJ o 00 08.11.2011 - Revisions Per 5.25.2011 DENR letter 11.28.2011 -Filter Diaphragm revised; #78M stone, Soil compaction req's. SHEET NO: C -3 \\Server\storage\NewData\AutoCAD\Land Projects R2\2011\MISC\11100010\dwg\Milhaven Lakes SUBMITTED REV 11.28.11.dwg, 12/1/20112:07:34 PM 6=mW V_N 00 V_N 00 00 C; CLIENT: MILHAVEN ASSOCIATION, INC C/0 Robert Moore 31.51 Milhaven Lake Drive Winston Salem, NC 27106 Phone: 336.768.2151 Email: lkmoore@triad.ff.com DRAWN BY: ATC DATE: 03.30.2011 JOB NO: 11100.010 REVISIONS: 08.11.2011 - Revisions Per 5.25.2011 DENR letter 11.28.2011 -Filter Diaphragm revised; #78M stone, Soil compaction req's. SHEET NO: C -3 \\Server\storage\NewData\AutoCAD\Land Projects R2\2011\MISC\11100010\dwg\Milhaven Lakes SUBMITTED REV 11.28.11.dwg, 12/1/20112:07:34 PM A I VTA� 3" Sch 40 Perforated PVC. See Specs. Capped on end. Do NOT use filter fabric around pipe. Holes must be slightly smaller than minimum stone size (3/16" Holes) Place cleanouts at 75' intervals.", Filter Diaphragm drain follows siphon pipe trench to toe of slope then outlets in emergency spillway channel with Class B riprap blanket covering pipe outlet. Use horizontal and vertical bends as needed to follow along side spillway pipe. 1:1 or lesser side slopes HEA"s 8913M Fine Concrete Aggregrate Sand (Soils test to confirm sand grade) One anchor per pipe section above construction waterline • 11110 3" W x 1/2" thick Stainless Steel anchor strap and Type 304 Stainless steel expansion anchors. (3/4" Hilti Kwik Bolt 11 or equal) Front View 90' Bend sealed with a gasket for water tight fit. 3000 PSI Conc. l'W x I'L x 6" D Steel "skid plate" welded to pipe to allow easy sliding down dam slope to bottom. T x 4'L x 1/8" T Screening not shown this view. Screening over end of pipe. Expanded steel or rod basket welded to pipe. H I VVVVVVVI C) 0C M 0C 0n Steel "skid plate" 1_; 1_, welded to pipe to allow 0C 0 0 0C 00 0C easy sliding down dam slope to bottom. EG 2 1 0 1 Vertical Scale: V = 21 CI 20 0 • 20 40 Horizontal Scale: 1" 20' Nr �r, . . . . . . . . . . . . . . . . . .J a. • W M CO (1) Ir W W Z CD Z W V_ E • 0 (3 Z • • 0 rZ, C •0 _toc 0 0 (L) 05, IV_ Z - 0) 00 Li LLJ qq ♦ t V) 0) Z 0 _r LLJ C 0 (00 Z Ld V) LLJ K) 0 0 Z 0 1 9 * CD V) Li LLJ C:) 0 X -0 L0 F— CL < LAJ M • LAJ M F— LLj 04 Front View 90' Bend sealed with a gasket for water tight fit. 3000 PSI Conc. l'W x I'L x 6" D Steel "skid plate" welded to pipe to allow easy sliding down dam slope to bottom. T x 4'L x 1/8" T Screening not shown this view. Screening over end of pipe. Expanded steel or rod basket welded to pipe. H I VVVVVVVI C) 0C M 0C 0n Steel "skid plate" 1_; 1_, welded to pipe to allow 0C 0 0 0C 00 0C easy sliding down dam slope to bottom. EG 2 1 0 1 Vertical Scale: V = 21 CI 20 0 • 20 40 Horizontal Scale: 1" 20' Nr �r, . . . . . . . . . . . . . . . . . .J a. • W M CO (1) Ir W W Z CD Z W V_ E • 0 (3 Z • • 0 rZ, C •0 _toc 0 0 (L) Z W IV_ Z - 0) 00 Li LLJ qq ♦ t V) 0) Z 0 _r LLJ C 0 (00 Z Ld V) LLJ K) 0 0 Z 0 1 9 * CD V) Li LLJ C:) 0 X -0 L0 F— CL < LAJ M • LAJ M F— LLj 04 0 Preliminary for Review Only; Not for Construction �( Final for Approval; Not for Construction 0 Approved and Released for Construction on PROJECT: DRAWN BY: ATC DATE: 03.30. 011 MUMS 1101111-lut REVISIONS: 08.11.2011 - Revisions Per 5.25.2011 DENR letter 11.28.2011 -Filter Diaphragm revised; #78M stone I \\Server\storage\NewData\AutoCAD\Land Projects R2\2011\MISC\11100010\dwg\Milhaven Lakes SUBMITTED REV 11.28.1l.dwg, 11/30/20113:16:04 PM 6maW AOI �L4 04� 00 00 00 DRAWN BY: ATC DATE: 03.30. 011 MUMS 1101111-lut REVISIONS: 08.11.2011 - Revisions Per 5.25.2011 DENR letter 11.28.2011 -Filter Diaphragm revised; #78M stone I \\Server\storage\NewData\AutoCAD\Land Projects R2\2011\MISC\11100010\dwg\Milhaven Lakes SUBMITTED REV 11.28.1l.dwg, 11/30/20113:16:04 PM Remove six sections of RCP storm drain pipe to eliminate connection with 6" PVC spillway pipe. Remove existing spillway pipe. Reshape and riprap channel as indicated in profile below with 5'W bottom and 3:1 side slopes or less. o� ,\ p Reshape channel to 5' W bottom and 3:1 or more side slopes. Line with med. weight filter fabric, 6" of #57 stone to protect fabric and Class 2 Stone. See profile below. 1--,* .000 Z- i/4 EIP.2UG\, Top cover SS MH, Elev: 824.0 NAVE,'88' 1Z_ 30' 20' 2+50 Z F- Reshape channel for 5' wide bottom and 3:1 side slopes or _.- _ less. Line with med. weight filter cloth, 6" layer of #57 stone and 3' deep of Class 2 Stone. (24" sizing) 0C no 0-1 �2 3+00 i to Cl) • .. W Z Z J a. Cn Ix 0 W C/) W Z Z LIJ T- E o • Z 0 0 CY) M LLJ •o Lij 0 0(1) W Z F— 00 C LLJ Li • 0) 0 LLJ C Z C M W V) • Z 0 Z Z 0 0 Li 0 CL X-C L0 LIJ < M M • Z LLJ M LLJ • 08.11.2011 - Revisions Per 5.25.2011 DENR letter \\Server\storage\NewData\AutoCAD\Land Projects R2\2011\MISC\11100010\dwg\Milhaven Lakes SUBMITTED REV 11.28.11.dwg, 11/30/20113:19:10 PM M M 0C ell • M 00 OC m C; �T. • CLIENT: IL AVE ASSOCIATION, INC C/O Robert Moore 3151 Milhaven Lake Drive Winston Salem, NC 27106 Phone: 336.768.2151 Email: lkmoore@triad.ff.com DRAWN BY: AFr' I 1.0 DATE: 03.30.2011 JOB NO: 11100.010 REVISIONS: 08.11.2011 - Revisions Per 5.25.2011 DENR letter \\Server\storage\NewData\AutoCAD\Land Projects R2\2011\MISC\11100010\dwg\Milhaven Lakes SUBMITTED REV 11.28.11.dwg, 11/30/20113:19:10 PM \\Server\storage\NewData\AutoCAD\Land Projects R2\2011\MISC\11100010\dwg\Milhaven Lakes SUBMITTED REV 11.28.1l.dwg, 11/30/20113:21:24 PM PRINCIPAL SPILLWAY BEND DETAIL N.T.S. Push-Joint Bends C-153 Glas-_' 250 FASTITE"' Gasket A JT 45:: DoV: T L-A PT I- A 31 90" Bend 45" Rend 22 1h" Bend 1! IT-1 fit I 4 11 1/4" Bend Al� 'T Ll I 1 1 I �1 5 5W Bend 6 111.44 i9li ill 4 8 0.97 WI WI 4 110 16.44 19lioll 4 12 118.75 1911o11 4 14 20.96 191911 3 16 23.22 191811 3 18 25.72 191811 3 20 27.85 191711 3 24 :32.54 1191611 3 30 X6.16 191711 2 36 44.50 191711 2 42 150.82 191711 1 t2 48 X7,22 191711 1 t2 SIPHON DRAIN NOTES: Operation of Drain I To prime the drain operation, close valve #2 at bottom of dam. 2. Open valve #1 at top of dam to evacuate air. Pour water to into the intake tube as needed to fill pipes with water. 3. Close valve #1. 4. Open valve #2 to begin flow of water through siphon. Adjust valve to desired flow rate for lowering lake level. Recommended flow rate is sufficient to lower the water one foot (I') per day for drainage operations. If constant low flow is desired then adjust valve for desired rate to maintain pond level and to keep from breaking the continuity of the water column. General Notes 1. Valve boxes are shown as bottomless precast boxes. Hand bricked boxes may be used as substitute. 2. Gate valves shall be AWWA approved. 3. Gate valves shall be left hand open (C.C.W.). 4. Gate valves shall have hand wheels for operation. Top of pipe at 840.0' or less THRUST BLOCK DETAIL N.T.1 RQMM M14 PIPE SIZE (INCHES) FITTING --- 4 6 36 900 BEND FT. 2.0 2.5 14.5 450 BEND H2 1.5 2.0 10.5 =22,50 BEND H1 (FT. 1.0 1.5 7.5 NOTE: Above dimensions are based on the following: 250 psi pipe pressure 2000 lbs/sq. ft. soil bearing capacity SIPHON DRAIN AND VALVE BOX DETAIL N.T.S. , ­­­-§ I I---- Use Neenah R-6661 -JH E 2'W x 31 x 4'D Precast bottomless valve box, or equal hand bricked box7_' A A 40 ■ w. -tagmagm rWl (FT.) D I rr 4' --- - NN' 80-150 Lbs/Acre Aug. 15 thru Oct. 15 FT. MINIMUM MIN./MAX. MIN./MAX. P H2 MIN, YMAX PIPE DIA. BAR SIZE H1 (FT. H2 (FT. US/ Rcp I W1 Max. Height) Tall Fescue & 70 Lbs/Acre Nov. 1 thru Jan. 1 .25 12. 00 2.00/3.75 .:25/1 .75 3.00/3.75 5.50/6.00 Apr. 15 thru June 30 Hl 1 .25!2.00 Hi 1.25/2.00 3.50/3.75 6.50/6.75 3.•• /4.25 1.50/2.50 3.50/3.75 6.5016.75 .50f 2.50 4,00/4.75 11.75/2.60 4.00/4,25 7.50/8.25 11-C .50 f 3. 50 0 II 4.00/5.00 III 2.0013. 00 4.50/ 5 60 10-00/11.50 6" Siphon 4" Sch 40 Siphon 00 00 3.2514.50 Drain Outlet Drain Outlet ------------ - 6.00/ 3" Clearance for rebar V ' 8- O.C. (TYP. ) 3 .5014 .50 --REFER TO r.HART 0.50/07 13.00/13.25 FOR BAR SIZE P LAN 6" Siphon Drain Outlet 4" Sch 40 Siphon Drain Outlet [4 *11 H2 --A- W, D.C. (TYP.) NEI-Eli 10 GHARI FOR BAR SIZE NOTE: THE MINIMUM BAR SIZE SHALL BE #5 BARS AT 8" CTS.rHE CONTRACTOR WILLHAVE THE OPTIO TO D INCIEASE TH!TS DAP ST2E AS NEEDE. ON101631 Wingwall and Base for 36" spillway pipe :A- A A' A. A. 4. A A 4. 4 A A 4 A A -.4 -41 - - - 6" Flap Valve -------- Inv at approx 823.0' A A 'A' 4' 4 A Conc. Slab It approx 822.0' -A A. a. 4.' w 4.. 4 'A A A 4 A` A All • F**T • Plants % Mixture Plantina Rates/Acre Planting Dates ENDWALL DIMENSIONS 80-150 Lbs/Acre Aug. 15 thru Oct. 15 FT. MINIMUM MIN./MAX. MIN./MAX. MIN.)'MAX. MIN. I MAX. MIN, YMAX PIPE DIA. BAR SIZE H1 (FT. H2 (FT. D (FT. W1 Max. Height) Tall Fescue & 70 Lbs/Acre Nov. 1 thru Jan. 1 .25 12. 00 2.00/3.75 .:25/1 .75 3.00/3.75 5.50/6.00 Apr. 15 thru June 30 15-20 Lbs/Acre (Unhulled) 1 .25!2.00 3.00/3.75 1.25/2.00 3.50/3.75 6.50/6.75 3.•• /4.25 1.50/2.50 3.50/3.75 6.5016.75 .50f 2.50 4,00/4.75 11.75/2.60 4.00/4,25 7.50/8.25 11-C .50 f 3. 50 0 II 4.00/5.00 III 2.0013. 00 4.50/ 5 60 10-00/11.50 00 00 3.2514.50 6.00/6.75 113 .25/3.50 ------------ - 6.00/ 3 .5014 .50 6.50/7.00 13.25/3.50 0.50/07 13.00/13.25 4.00 15.00 6.50/8.50 3.2514.00 7.00/9. 25 13.50/15.75 6- I 7.25/9.25 13.75115.75 ON101631 Wingwall and Base for 36" spillway pipe :A- A A' A. A. 4. A A 4. 4 A A 4 A A -.4 -41 - - - 6" Flap Valve -------- Inv at approx 823.0' A A 'A' 4' 4 A Conc. Slab It approx 822.0' -A A. a. 4.' w 4.. 4 'A A A 4 A` A All • F**T • Plants % Mixture Plantina Rates/Acre Planting Dates Tall Fescue 80-150 Lbs/Acre Aug. 15 thru Oct. 15 Tall Fescue 100 Lbs/Acre Feb. 15 thru May Tall Fescue 50 Lbs/Acre Feb. 15 thru Apr. 30 Scar. Tall Fescue & 60 Lbs/Acre July thru August Browntop Millet or 30 Lbs/Acre M Sorghum-Sudan Hybrids (Millet & Surghurn must be kept at 10-12" Max. Height) Tall Fescue & 70 Lbs/Acre Nov. 1 thru Jan. RyeGrain 25 Lbs/Acre Common Bermuda Grass 8-12 Lbs/Acre (Hulled) Apr. 15 thru June 30 15-20 Lbs/Acre (Unhulled) Feb. 1 thru March T_ o V_ 0 (3 , r-, 0 0 0 LLJ 0• -t LLJ 0 'Tt 0a) X 00 LJ z -t 0) 0 • _r LJ.J C 0) z LA _J r 0 z V) 10 0 (1) V) LLJ LLJ 0 CL X M 0 Z LLJ M F- LJJ 0 4W04=1 DRAWN BY: ATC DATE: 08.11.2011 ff §T167olky"' 's REVISIONS: 08.11.2011 - Revisions Per 5.25.2011 DENR letter ill 111b '1I 11111�01611 0 1181, i SHEET NO: C -7 \\Server\storage\NewData\AutoCAD\Land Projects R2\2011\MISC\11100010\dwg\Milhaven Lakes SUBMITTED REV 11.28.11.dwg, 11/30/20113:22:21 PM 6mmaW C C C C 0 • r -w INC 11-C 00 00 6- DRAWN BY: ATC DATE: 08.11.2011 ff §T167olky"' 's REVISIONS: 08.11.2011 - Revisions Per 5.25.2011 DENR letter ill 111b '1I 11111�01611 0 1181, i SHEET NO: C -7 \\Server\storage\NewData\AutoCAD\Land Projects R2\2011\MISC\11100010\dwg\Milhaven Lakes SUBMITTED REV 11.28.11.dwg, 11/30/20113:22:21 PM