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L1M1T5 O ITR ~4 r~-o m-d m-~ TEMPORARY DIVERSION i ~ ' ~ - ,J f, a ~ ~
14.68 A . UV/EXCELSIOR MATTING ~ ' ~ i- N ` r 1 i
/ 11 TEMPORARY SEDIMENT TRAP 1 r'``r Q~~
C®NSTR CT~O
z
1f { IJ
a SKIMMER SEDIMENT BASIN "f ~ , ~f1~~ ~l+` ~
SILT FE
All SLQpES,:3 1 }4N~ GREATER SHALL BE STABILIZED NfllN t,. lllitNtilll?rt
Elil-I~R SOD OR EXCELSIOR MgT17NG- OVER :$EED AND SILT FENCE OUTLET cARoe
srnnw. C S PERMANENT SEEDING Essid
SEAL
RIP RAP OUTLET PROTECTION • f 10' x 19843 10' x 2' EXCAVATED 0
ALL TEMPORARY DIVERSION DITCHES SHALL BE SEEDED AND ' ¦ ¦ ¦ DROP INLET PROTECTION
MATED W17H EXCELSIOR MATItNG IMfidE01ATELY UPON
iNSrALU,nort SCALE: i so• INLET PROTECTION I 1 %1!' ` ; f Jf ; AE~. llll~`l~ 7-1-2011 Z
-0 60 120 150 180
/ ~~V C-8

EROSION AND SEDIMENTATION GONTROL NARRATIVE
PROJECT DESCRIPTION
The purpose of this project is far the construction of a 64 tot Subdivision in flowers Plantation. The site contains approximately 15 acres and (s located in Glaytat, NC. Approximately 17.35 acres will be disturbed during °z °z
construction. The project is owned by M/I Homes of Raleigh. The maximum fig will be approxima#ely 15 fee#. ~+~rf~f~fE~.~•E®®~P/Vr,~Ir s®l~ PQR4US BA/=FLES /NA sED/R9ENfB
NOr Ta 5CAlE rL/f/Pil/!/11 r~~fl8~~lir The project la scheduled to bin construction in Summer 2011 with project comple#lon and final stvbIDzation NoT ro scALE
by Wktter 2011. The erosion and sediment control program for this protect will include the installation of a Nor ro scALE SUPPORT POST, 24 STAKE TO SUPPORT Q Q SUPPOR7 ROPE TO INTO 80TTOM OR SII~ WIRE N ~ N
construction entrance, sklmmer sediment basins, rem orar sediment tra ,inlet rotections, outlet rotectians, ARM ASSEMBLY rz°ar1N a~xmDrps oA P Y P P P ,fir wASrev sraNE s' and temporary diversions wi#h temporary and permanent seeding of the site. "G" ENCLOSURE ~N• WIRE i(3 PREVENT SAGgNC ~ D
1.5 MIN. 1.5 MIN. \ 5 0 W
3600 CU, fT ACRE DIRECTIONS TO SITE `
t ,ty ~ h
a 0 out o s la a . eke 70 East #owards Cla on. Take NC 42 East. Taken ~ From Raleigh, t ke 4 S h t ward C yE n T Hwy yt WATER ENTRY UNIT left an Buffda Road at Percy Flaws Store. Turn left into Flows Plantation. Turn right at the traffic v~ r WIEC aaIlET
circle. Site is on the right. PERS'PECr/UE'i~/E{y - I ~ ~ ~`r~i
Nor ro sruE - EXISTING SITE CONDITIONS PyG VENT CRQ$$ S~ _T~ /O[U RcrFR FAeRrc ..LAIR MESH OR SIMILAR, STAPLED OR TRENCHED INTO ~ m ABRIC
PVC END CAP EMERGENCY =~=1'I 807TOM OR SIDE N °o . t
Site Is mossy wooded except for the areas previously cleared for a proposed development that was never /''PVG ELeDw PIPE PIpEEDULE aD PVC e% aaTtpleted. wATfR SURFACE s" Bla
ovERRU s° " 6Yw ~ CROSS-SECTION Of /1 ®RDUS BAffLE N ~uEnlr 7DP of DAM NDT m scuE ~
ADJACENT PROPERTY SCHEDULE 4a PVC ° ~ FDR sErTt.EMENr tort a PUG END CAP PIPE aRIFlCE PLATE ~ 1~~ 0
All ad scent ra ert lines are shown on the Construction Plat fan. This subdivision is art of the Tar er PVC PIPE J P P Y P P 9 PVG TEE t/2' HaLES IN PVC TEE n r. z
community of Flowers Plantation. Adjacent property uses w111 be re~dential. UNDERSIDE HasE y I 4 ~N . 5 u - - ~ 1 SIDE SIDE r7 m O
HOTT~I SURFACE
SOILS ~ ENS VIEW 2' m J.5' F J,J ~ ~ NATtiA F~oNrV1EW ~a~ NARiRAt GRaUNO ~Q~
The soil at this site is a clay loam. NOT TO SLUE Nor To scatE BAFFLE 4'~ ~~7 yv
- JJ 3'MtPG EROSION AND SEDIMENT CONTROL MEASURES I~
All ve etative and structural erasion and sediment control ractices shall be constructed and maintained by the contractor accordin tv #hese ens and edflcatlons and the minimum standards r fired b the NC _
Dept. of Environment and Natural Resources, Land Quality Section, The conhvctar shnEl also follow any ~ CONSTRUCTION SPECIFICATIONS:- idon and root mat. Remove all ~ EARTHEN y
addi#iortal requirements os outlined by the Pro,~e# Engineer, 1. Clear, grub, and strip the area under the embankment of all vegetation and root mal surface soil containing high amounts of organic ma#fer, and stockpile or dispose of it p or dispose of it properly. Haul all \ EMBANKMENT
objectionable material to the designated disp~al area. Structural Practices = 2. Ensure that fill material for the embankment 3s free of roofs, woody vegetation, orgai ly vegetation, organic manor, and \
~ other objectionable material. Place the fill In lifts not to exceed g inches aid machine + t. Vehicle wheels shall be clean when teavfiq fhe site fa prevent the tracking of mud an paved roads. the embankment 6 inches to allow for settlement. hes ~d machine compact it. Overfill
2. Canstructfon Road Stabllizokion: Cons#ruction traffic shall be limited to stabilized areas. At a minimum, a INFLOW ~ 3. Construct the outlet section in the embankment. Protect the connactlon between the •tlon between the riprap and the soil he riprap structure and the soli.
tem or ravel construction entrance shall be ovlded as shown on thEs ~avrfi . 5TRUC'NRE = x from i i b usin filter fabric ar a k cutoff trench betvreen the ri r structure P a'Y 9 Pr 9 a P P n9 Y 9 Y P aP m
• Place fhe filter fabric between the ri ro and soil. Extend the fabric across ti Vegetative Practices P P spillway foundation and sides to the top of the dam; or ae fabric across the b,
. _ • Excavate a keyway trench along the centerline of the spillway foundation eaten Temporary Seeding: All d~tuded areas that will not be brought to final grade for a period of mare than t5 up the sides to the height of the dam. The french should be at feast 2 f#. d. INSET ZONE y foundation extending 35X OF SURFACE AREA ~e at least 2 f#. deep ~
working days or 30 calendar days shall receive temporary seeding. Temporary seeding shall also be used to v and 2 ft, wide with 1a side slopes. FIRST CHAMBER ~
stabilize finished grade areas if the time of year is outside the specited permanent seeding periods. SKIMMER 4. Clear the pond area below the elevation of the crest of the spillway to facilftate sedii Temporary seeding shall be In accordance with #emporary seeding specifications. DEwATERiNG 5. All cut and fill slopes should be 2:1 ar flatter. y to facilftate sediment cl~nout. ~ 25~ OF SURFACE AREA
DEYICE 6. Ensure that the stone (drainage} section of the embankment has a minimum bottom Permanent Seed€ng: Permanent seeding shall be applied within 15 working days or 30 calendar days to all maximum side scopes of 1:1 that extend to the bottom of the spillway section. minimum boEtom width of 3 ft. and OUTLET, CLAS51 r seotion. RIPRAP SECOND CHAMBER
areas where final grade has been readied, unless temporary stabllizatian is applied. Permanent seeding may EMERGENCY 7. Construct the minimum fifnished stone spillway bottom width, as shown on the plans, SPILLWAY nvn on the plans, with 2:i side 25~ OF SURFACE AREA
also be applied to rough-graded areas that will not be brought to final grade far a year or more. slopes extending to the top of the overfilled ambankmertt. Keep the thickness of the side outlet structure at a minimum of 21 inches. The wilt must ba level and constructed to ~Ickness of the sides of the spillway nil constructed to grade to assure OUTLET 20NE
design capacity. Management Strvtegles - B. Material creed in the s#one secElon should be swell-graded mixture of stone with o r ~ 15~ OF SURFACE AREA of stone with o d5O size of 9
` = ' ~ ~ ~ ~ = - - inches (class B erosion control stone is recommended} and a maximum stone ilxe of 1 m stone Sze of tk inches. The stone
sur are to be installed riot to Tubb or adirt . , . 1. Perlrneter rasa es p q ing 9r g - may be mactdne placed and Ehe smaller stones worked into the voids of fire larger Stan - 2. Stockpile and/ar wvste areas must be main#ained withbT the limits of the areas protected by the proposed ~ - should be hard, angular, and highly weather-resistant. of the larger stenos. The stone
' ° ° ° ~ 9. Discharge inlet water into the basin in a manner #o prevent eroson. Use temporary measures and otherwise temporarily seeded if to be left stockpiled rarer t5 days, eAFFLES diversions with outlet ratection to divert sediment-laden water to the u er and of the ~ Use temporary Slope drolns ar upper end of the pool area to
3. Construction shall be planned so that grading operations can begin and end as quickly as possible. P PP e ces ail aisa be installed riot to ar as a first s#e ~ construction. p(A# VIEW Improve basin trap efficiency (References: Runoff Con#rol Measures and Outlet Protection} 4. Sit F n sit p P 10. Ensure that the stone spillway outlet section extends downstream past tics toe of thr Outlet Protection).
5. The Contractor shall be responsible for the installation and maintenance of all station and sediment con#rol Nor ro scacE stable conditions are reached and outlet velocity is acceptable for the receiving stream. cast the toe of the embonkma9t until POROUS BAFFLE USING SILT FENCE W1T11 SLITS CUT 1N EACH receiving stream. Keep the ed as of
practices. the stone outlet section flush with the surroundtn g ground and shape the center to conf the center to confine the outflow ALTERNATING SPACE DF WIRE BACKING FENCE ~
Ve etative Ground Cover EMBANKMENT stream (References: Outlet Protection). g ~ 11. Direct emergency bypass to natural, stable areas. Locate bypass outlets ao that flow utiets so that flow will not damage Nar to scn~~
, the embankment. Immediately following grading, n11 areas shall receive either permanent or temporary seedbtg, as applicable, as ~ CU BAFFi.ES t FREEeoARD 12. Stabilize the embankment and all disturbed areas above #ha sedtm~t pool and dawn ~t pool and downstream from the
follows: EMERGENCY trap immediately after construction (References: Surface Statulization). ~111wAY 13. Show the distance from the tap of the spillway to the sediment cleanout Eavel (ane- leanout Eavel (one-hall the design CONSIRUCJTt?N SPECtfICAT/ON.•
Feb-May June-Oct Nov-Jon DEWA~NG 6" MIN, INVERT AiiON OF depth) on the plans and mark it in the field. 1. Grade the basin so that the bottom is level (rant fa back and side to side.
Permanent Seed: K-31 Fescue Bermuda Bermuda ZONE EMERGENCY Sr LLWAY t4. install porous baffles as specified in Practice 8.65, Paraus 8affies. F1L C 2 Instal! posts or saw horses across the width of the sedfinenf Trap (Practice 6.62, .Sediment . Fence}.
~ 5 jE/1000 5F ~ 5#/i000 SF ®5#/3000 SF TER FaBR! lus German plus Winter Maintenance: P Inspect temporary traps at least weekly and after each significant (1 1/2 inch 3 Steel pasts should be driven to a depot of 24 inches, spaced a maxmum of 4 feet apart, and
Millet ~ 40~/Ac Rye Grain ~ 25~/AG SEDIMENT STORAGE event and repair immediate?y. Remove sediment, and restore the #rap to its s ;ant (1 1/2 inch or greater) rainfall installed up the sides of the basin as well. The tap of the fabric should be 6 inches higher than the trop to its ongmal dimensions fhe invert of the spr~woy. Tops of betties should be 2 inches lower than the top of the berms.
Zoh~ rriR~isa~'s>~+r~~Q~ VFW when the sediment has accumulated to one-haft the design depth of the trap. epth of the trap. Place the 4. Install at least three rows of baffles between the inlet and outlet discharge point. BasFns less
Tem orar Seed:K--3i Fescue Bermuda Winter Rye sediment that is removed in fhe designs#ed disposal area, and replace Ehe pat P Y ~ 5 000 SF Cg 50 Ac NOT Ta scACE that is impaired by sediment. replace Ebe part of the gravel facing than 21I feet in length may use 2 baf~es 5 When using posts, add a support wire ar rope across the top of the measure fo prevent sagging.
2,x/1000 SF #/i plus hinter Check the structure for damage Pram erosion or piping, Periadieally check th+ 6. Wrap porous material, take fate tracked by coin material, over a sawhorse or the fop wire. tdieally check fhe depth of the spillway Hamrrter rebar Info fhe sawhorse legs for anchoring. The fabric should have Eve fo ten percent
Rye ~ 25#/Ac CONSTRUCTION SPEGfICAAONS• to ensure it 9s a minimum of 1.5 feet below the law point of the embankmen the embankment. immediately fill any openings to fhe weave. Attach fabric to a rope and a support structure wfth zip ttes, wire, ar
1. Clear, grub, and strip the area under the embankment of all vegetation anti root mat. Remove ail surface soil settlement of the embankment to slightly above design grade. Any tiptop disp My riprap displaced from the staples. 7 The bottom and sides of fhe fabric should be anchored in a trench or pruned with 8-inch erosion
Fertilizer: 10-10-10 ~ 25/1000 SF containing high amounts of organic molter and stockpile or dispose of it properly. Haut all objectionable material to spilCway must be replaced immedia#ely. Lime: 100/1000 SF the designated disposal area. Place temporary sedimen# control measures below basin as needed control matting staples
Mulch: Straw ~ 75#j1000 SF 2. Ensure that Rfl material for the embankment !s free of roofs, woody vegefatlan, organic molter, and other After all sedimen#-producing areas have been permanently s#abilized, remove tl ~ilized, remove the structure and all B po not splice the fabric, but use a continuous piece across fhe basin. ng areas, and stabilize properly
Tack: 200 gallons/Ac on alt mulching abjecfionable material. Place the fd! in lifts not to exceed 8 trrehes, and machine compact 1#. Over fill fhe unstable sediment Smooth the area to blend wi#h the adjoining areas, and s{ embankment 6 inches to allow far seftlement. (References: Surface 5tabilizatian).
Maintenance 3 Shape fhe basin to the specified dlmenskms Prevent the skimming device from settling into fhe mud by MAlN1ENANCE.• Inspect baffes of least once a week and after each rainfall. Make any required repairs immedkrtely.
excavotfng a shallow pit under the skimmer or providing o law support under fhe skimmer of stone or timber. 1. Reseed and mulch bare spots larger than 9 square feet (limited to 5~ maximum of site area.) 4. Place fhe barrel ~fypfcatly 4-inch Schedule 40 PYC pipe} an a firm, smooth foundatlan of impervious so1L Uo not
2 Maintain all seeded areas until uniform stand is acceptable. use perv/aus materaa! such as sand, gravel, or crushed stone as boc~ll around the pipe. Place the fit material M Be sure fo maintain access to the baffles 5hou/d the fabric of a baffle collapse, tear, decompose, or become ineffective, replace it promptly.
3. if growth Is not established by find project inspection, continue specified attention until the stand is around the pipe spillway in 4-Inch layers and compact /f under and around fhe pipe fo at least fhe same density as acceptable the adjacent embankment Core must be taken not to raise fhe pipe Pram the firm contact with its foundation when ¦
L 4, Correct and repair all undue settling anti erasion within 1 year afE~ final inspection. compacting under the pipe haunches Remove sediment deposits when it reaches half full to provide adequate staroge volume for the next rain and to reduce pressure on the baffles. Take care to avoid damaging the ba{flee daring deanout. Sediment depth should
5. Remove from the site, ail erosion control structwes after canplete s#abilzatlon at end of cans#ructlan Place a minimum depth of 2 feet of compacted bactrflli aver the pipe spillway before cross/ng it with consfructlan Not ?0 5CAtE period. equipmen#. !n no case should the pipe conduit be Insfatled by cuffing a french through the dam offer the never exceed half the designed storage depth.
embankmenf is complete. 5. Assemble fhe skimmer foliowin the manufacturers /nstrocfions or as deli nod --dfETAt POST After the canfributing drainage area has been properly stabilized, .remove all baffle materials and unstable sedunent
Calculations ----M£TAt POST 6. La fhe assembled skimmer on the botfom of the basin with the flexible lnt at fhe inlet of the barrel 1 e. Y .Io PP deposits, bring the area fo grade, and stabilize it.
Attach the hexible jainf fo fhe barrel and oslfion the sklmmer over the excavated plf or support. 8e sure to • ~ ~R'"'•'~":~ ~ •r.::~ ~ : " The proct(ce utilized for the proposed sl#e did require formal calcula#lons. Calculations have been provided. attach a ro to the skimmer and anch r if topfhe side of the baser. fife wilt be used to ul1 the skimmer fo fhe REtNfORCED CONGREIE P1P£
side for ma~enance, p OWNER 7. Earthen 171wo - lnsfaQ the lHwa in undisturbed soN to the realest extent posslb/e. The achievement of ' +r
sP Ys sP Y 9 planned elevattons, grade, design width, and entrance and exit channel slopes are critical to fhe successful aperoUon
M/l dames of Raleigh of fhe sprTlway. fie spillway should be lined with Iaminated plastic or Impermeable geotextile fabric The fabric must 15T1 Sunday Drive be wide and long enough to cover the bottom and sides and extend onto fhe fop of the dam for anchoring fn a ~tT p Ir o t r rL E r p~ o rEC ri o N NOT TO SCALE
Suite 112 trench. fie edges may be secured with 8-inch staples or pins The fabric musf be long ~raugh fo extend down the
Rdet h K.G. 27607 slo a and exit onto stable und. lire width of the fabric musf be one fete not ' Ined or s liced• otherwise water ° g ~ can et under the fabric. !f~ re len of fhe fabric is insuti<cient far the entire !e nth of the s illwa multi le a
9 9fi 9 p Y p a sections, spanning the complete width, may be used The upper section(s) should overlap the lower section(s) sa fhe PIPF D!lILFT TO FIAT ARFA N4 WFil-DEFINED CHANNEL
CONSTRUC7TON SEQUENCE water cannot flow under the fabric Secure the upper edge and sides of the fabric !n a trench with staples or pins. 8. inlets - Qischarge water into the bosh in a manner to prevent erosion. Use temporary slope drains or diversions a
1. Call NCOEt~t m 919.791.4200 to notify the Inspector of a start data prime #o land disturbance. with outlet protection to divert sedimanf-laden wafer to the upper end of the pool area to Improve basin trop , ; •T , ~ . A A q ~A ~
2. Obtain erosion cantrd plan approval prior to beginning land disturbance. Retain a copy of the approved effcrency. ' ` erosion control plan and permit ansite in a permit box at all times. Contact the Clty of Rocky Mount ~ 9, Eroslan control -Construct fhe structure so that fhe disturbed area is minimized Dfverf surface wafer away from ~ ~ N ~ ~ SRT
252.g72.i121 immediately prior to beginning any work onsite. bare areas Complete the embankment before fhe area is cleared. Stabilize the emergency spillway embankment and I ~ ~ ~ M/Rf I1 ~^~t°X IE II ° ti r
3. Cons#ruct fhe cartstructlon entrance (stone tits cleaning facility} as shown on the plans. Maintain the a!1 other disturbed areas above the crest of the principal spr7lway immediately after construction. ~ ~ S~ltt canstructiaT entrance dally fo ensure that mud and silt will not be tracked ants paved surfaces, If mud is 10. install porous baffles as specified DR 7RENRA ~ _ e sfrfs u l1
#racked alto any paved surface, it is to be removed immediately. 11. After all the sediment producing areas have been permanently stabl7ized, remove the structure and a!1 fhe unstable
4. Clear and Grub as necessary #o install perimeter erosion measures. sediment Smooth the area to blend with the adjoining areas and stabilize properly. 5. Install Silt Fence and Sitt fence Outlets. MAINTENANCE
6. Construct skimmer sediment basins, temporary sediment #rap and install temporary diversions. inspect skimmer sediment basins at least weekly and after each significant (one-half Inch ar greater) rofnfaA event and repair immediately. Remove sediment and restore the basin to Its original dimenslans when sediment N tj PLAN VIEW PLAN V VIEW r na
7, tmmediately seed and mat temporary diversions and seed around sedirrnent basins. accumulates to one-half the height of fhe nisi bafRe. Putt fhe sklmmer to one side sa that the sediment NaT TO SCALE 8. Begin clearing anti grubbing. underneath it con be excavated. Excavate fhe sediment from fhe entire basin, not 1rtst around the skimmer or
9. Begin strippkTg of tapsolL the first cell. Make sure vegetofian growing fi fhe botfom of the basin does not hold dawn fhe skimmer. V
10. Begin grading site. 1i. As site is filled, the sediment basins will need to raise up with the grade perlodicilty. As grading continues ~ ~ La Z
tern ors sediment tra 1 will need to be removed and sedlmertt trap 4 with the assilcated temporary Repair the baffles if they are damaged. Re-anchor the baffles /f water fs BowhTg underneofh ar around them. ~ P rY P
diversions need to be instilled. if the skimmer 1s clogged with trash and there fs water In fhe basin, usually jerking on the rope will make fhe 12. install drainage pipe as shown. install temporary drop ktlet protection at proposed pipe. sklmmer bob up and down and dislodge the debris and restore flaw tf this does not work, pull fhe skimmer over ~ ipR H i ~i
13. Seed, straw, and tack all areas that are graded to their final disposition. to the side of the basin and remove fhe debris. Also check fhe orifice inside the sklmmer to see if ft is clogged; q
14. Continue grading and construction of the project. Da not allow any area to be disturbed any longer than if so, remove rho debris, O~ 15 working days or 30 calendar days without applying temporary or permanernt seeding per erosion controE Ot~, roc, !K r'lIG ~ •Q roa• FILIFR 9LANKET ~ t, ty m t .
narrative. If the skimmer arm or barrel pipe is clogged, the orlBce can be removed and the obstruction cleared with o ~}0~ MrA! '~/q! DR (MIRAFI f40N} SECi70N A-A FILLER BLANKET OR (MIRA!•7 f40N) SECTION A-A
15. Maintain erasion cat#rd measures daffy and reseed disturbed areas as needed. plumber's snake or by flushing w/fh wafer. 6e sure and replace fhe orifice before repositioning the skimmer. Q' 16. Install water, sewer, curb and gu#ter, s#one and asphalt.
17. Inspect all erosion contrd devices weakly and after such rainfall event. Repair as needed. Check the fabr/c lined spillway for damage anti make any required repairs wffh fabric that spans fhe fuA width of 12. After the si#a is completely stabiized vnd the Project Engineer has certified camp[etion and stabliization, the spillway. Check the embankment spg/ways< and outlet for erosion damage, and Inspect fhe embankment for ~ 4~V PIPE OURFT Ta FIAF AREA PIPE WTLET TD
contact NCDENR for approval to remove di temporary erosion control deices. piping and settlement Make all necessary repairs Tmmediofely. Remove all (rash and other debris from fhe O~ J ~4~4~J NO 11ELC-DEFtxm GTraNNFt {ALL-nEt7NE0 aaANMEt
13, Permanently seed all disturbed areas. sklmmer and pool areas 5 ¢~v t P CONSTRUCTION SPEC/fTCATT(1NS•
FFEeZ1r7 weather con sh l { g resul# >n Ice farming w fhe basin. Same special precautions ou d be taken m fhe winter 1. la = fhe length of the rip rap apron.
to prevent the sklmmer from plugging with ice. 2. d = 1.5 times the maximum sfane diameter but not Isss than 6': 3. In o we!!-detmed channel extend fhe apron up fhe channel banks fo an elevation of
Ej SPI~I/Yf/lR 2" - 3" COARSE 6" above fhe maximum tailwafer depth or fo the top of the bank, whichever Is less
~ TRArastbrr to a a3noE NOT in SCAtE ®L AccRECa r;: s rFFHCEOrrn~r 4. A filter blanket or fIr ter fabric should be installed between the rip rap and soil
ow,wrNUC»oN s~EancAnarsi Nor To saALE s" MtN. 1. nrE rrmnrNC srrotnD eE A MININUM of 4 fEET' NsDI: DrrENWfPG s OfAYES OVER ntE ur W4EAaad AMD BURlFL 6 INdrES DEEP !N A VERRCAL TRENCH ON II!E LOwdt IDOE nrE UAPER EDGE 5" MIN. foundation. 5. flared end section is optional. see plans for requirement. .
..,,a- ~ -v rnucmiinnnni carrrnrnnnnic. 6. See elan and nrofdes far actual dimensions.
1 SNDIRTT BUTT AMNST SSPROM WWR GUT SDD AND B12 MCNES LONG FOR MMRM MM M E 51WHE.Y HELD (N PTAGE BTTTT GLOSELY INA4kD T MIX STABILIZED SIM 2~EIMUR TWITTWE up 15 ~ ~ OF s RUf. Clear thB entrance and exit area of all vegetation, roots, and other obfec and other objectionable
e! J. COHBTWQr THE LEVEL SFYWAVER ON UNWSURBED SOX CAI RW. ft- -s Mx ZEE PIAB material. `+o~teu~urrr~lj V 1
4. CaVSnW A 20-FVOT 7NAAWa+? SECIMM FROM 7W D~ron CHANNEL 11-W TO BLEND ~ I s 2. Place the gravel to the specific grade and dimensions shown on the plan; SMOOTHLY TO WE MH AND DEPTH OF 1W SPREADER WON CMM FL ND? To smooth it. srAml UNasluBBm ' s nMM9M IMI RUAF UM RTE SPREAD A PROPERLY SMUZED SLOPE own on the plans, and ? in
ouTtET ~T rLt J. Provide EXCEED TaM: MAKE SURE THE SLOPE LS S LBTNdENRY 5MOODf TO KEEP PLOW FROM FA ~ MC 3 drainage to carry water to sediment trap or other suitable outlet ma A., CONCEMDIL4TMIC 4. Maintain the ravel ad in a condition to prevent mud or sediment from e, -r suitable outlet 4°~®~ p~ESS(p~9 /•y9•,: w Z 00 N sediment from leaving the
r rL DBIEpt9TELY AFTER ZIS CONSIRUC= APPRaPBE my SEED AND MULCH THE EMDRE g pad DSNRBED ANSI of 7W SPREADER, construction site, this may require periodic topdressing w12 inch stone. NOT TO SCALE Q U inch stone.
x MIN. SEAL z v 19843 z
VARIABLE COMPACSEDSa~- z •.Fa_-fNEti~°°°J 0 QN
MATERIAL STAPLED SLT TENCE IT_ SEE Fun T tIIitE IN PLACE ICU
\ - M I_ B° MIN. fla G I 1tCHAEL~'?~~0`°~ 7-1-2031 EMU U Q=
7 IEITC~taic K JM LEVEL UP aF OZEPECr LEVEL SPREADERS AFTER EVERY MMNFALL UNTIL WMAIWN IS EM&MED, AND ~I I TF I_ - T ~n ~Z I ~ ~ptCELSfOR MAIMING • _ t f, t~~ l/ l V I r
SPREADER BURIED r MIN. PROMB'AY ~ AMED AWAIa"uC AFTER THE AREA MIS BEEN SMINUZAA MWTE PERWDW "E7GRONSAND KFF' MMMYWM hVA HEALTHY, VTGOROILS COMMON, I-- IN 80TT0d /~rjJ ~~`NNl ttt J F
AL CROSS SECTION l Dwi

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~ ~ \ ~ . ~ REINFORCES • FILTER STRIP PEt~EG71Y
/ ~ ~ ` ~ ~ CHANNl2. ;;i ~ • ° • ° ° ~ I.EVEi. FR~N ONE SIDE TO • ° • ° • THE OTHER CONCRETELEVE~.
~ zoNE ~ ~ #2 rNV. FES SPREADER LIP ° • ° ° 30''.° N ° ~ Q
r 789 sF ~ ~ r f27 r ~ 260.00 8, 575TONE:ON ~ '.FILT[R' N
v 26s \ ~ _ FiLT[3t fABRIC ~ , ° • ` STRIP ° ° ~ (FESCUE SOD}
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LEVEL RE ER ~ r ~ SECTION A-A
e ~i ELE . 60.4 2 8 . ! ~ ~a
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\ 6 ~ ~ ~ ~ ~ N L SPREAD ,
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~ , ~1 TF ~ LEVEL SPREADER CONSTRUCTION SEQUENCE .~.1 ~
~ ~ ~ ~
~ ` t4 1. IMMEDIATELY BEFORE BEGINNING CONSTRUCTION CONTACT ENGINEER TO VERIFY ~ C~'
THAT THE PROPOSED GROUND CONTOURS ARE APPROX, PARALLEL TO THE LS
LOCATION CALLED FOR ON THE PLANS. ~
LEVEL SPREADER 2 2. USING A SMALL EXCAVATOR, CONSTRUCT A LARGE RECTANGULAR HOLE TO A Ci
LEVEL SPREADER 1
SGALE: 1 "=30' SGALE: 1 "=30' DEPTH OF 1 FT OR AS DESIGNED FOR THE BLIND SWALE,
3. BEGIN CONSTRUCTION OF LEVEL SPREADER ON UNDISTURBED SOIL IF POSSIBLE.
IF CONSTRUCTED ON FILL, COMPACT TO 957 STANDARD PROCTOR. CONCRETE
FORMS SHALL BE APPROX. 3" HIGHER THAN THE DOWNSLOPE GROUND TO
ALLOW FOR DIFFUSE FLOW. POUR CONCRETE TO TOP OF FORMS, ENSURE LIP
~ ~ . IS PERFECTLY LEVEL. LET CONCRETE SET OVERNIGHT AND REMOVE FORMS,
\ ~ ~ _ .
~ 4. BEGIN BACKFILUNG AROUND LEVEL SPREADER AND REINFORCE THE CHANNEL.
\ • \ ~ / ~ ~ 5. CONSTRUCT FOREBAY.
• ~ ~ ) 6. INSTALL FLOW SPUTTER.
~ ~ ~ ~ ~ ~ \ ~ ~ 7. SEED, STRAW AND TACK ALL DISTURBED AREAS IMMEDIATLEY UPON COMPLETfON.
~ ~ ~
Z NE 1 IMPACT
~ ~ 6 75F /
e~L CR ' • ~ aNE2 !PACT E£K y
• 1 ~ Z~1NE 1 IMPACT 770 SF . i
' ~ • 71.0 ~ ~ . /
/ ~ 28x3 ' ~ ~ . ~ VEGETATED FILTER STRIP NOTES
W ~ LEVEL PREADE Q
72 LF • . ~ 29 ZONE 2 IMPACT L ELE 2 0 1. FOR AN EFFECTIVE VFS, IT IS ESSENTIAL TO PREPARE THE SOILS PROPERLY AND
~ 12.2 ~ ~g2 6' 451 SF (NV. FES 23 9 MAINTAIN A DENSE, VIGOROUS STAND OF TURF.
279,00
CAS 8„ SAM 2. THE SIDE SLOPES CREATED BY ANY GRADING SHOULD RECEIVE THE SAME ATTENTION TO SOILS AND VEGETATION AS THE VFS.
4 56 LF 1 RCP . 2 ' 3. AT A MINIMUM, THE VFS AND ANY SIDE SLOPES SHOULD BE COVERED WITN SIX
6' FES
~ ry INCHES OF TOPSOIL.
~ ~ ~ 12x30 ~ ~ 4. A ONE-TIME FERTILIZER APPLICATION TO THE TOPSOIL SHOULD BE PLACED AT A RATE
~a. 9 ~o VEL SPRE ER OF 75 LBS/1000 SF AGRICULTURAL GRADE UME AND 50 LBS/1000 SF OF 5/10/10
f2ss.2o o~ ~ ~ tNV. 1N 2 FERTILIZER.
g PVC p I T (12) 284.0 INV. 12" FE 2 A 5. FESCUE SOD SHALL BE PLACED PER DETAIL.
~ tN{/. 8" 18A INV. OUT 1 40 283.97
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SGALE SGALE: 1 -30 a~~
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SCALE. q I 30'
0 30 60 75 90 D-2