20080956 Ver 1_Site Plan_20080611

2' 2.0' I.D. 2' w
G"
DOMED TRASH RACK Q
NO.G REPAR W/MAX. 1 2" T
EXTEND WHEEL ABOVE HORIZONTAL OPENING, MOUNTED
PRE-CAST BOX WITH HINGES AND HOLD DOWN 4"
WATERPROOF AND TRASH RACK CLASP WITHIN THE INSIDE LIP OF
2' PRE-CAST BOX. LID SHOULD OPEN
01 MASTIC (TYP.) 24" AWAY FROM DAM.
N8
0
2.0' I.D.
OF F___ I STEPS 5"
NVARIES I STEEL BAFFLE I A z
O
2, SEE CHART 1 1 0000000 0000000 N
W.Q. ORIFICE W.Q. ORIFICE EL. VARIES
Gil o SEE CHART A LU
L PLAN SIDE ELEVATION n/
POURED IN PLACE 15" CONCRETE RISER
#3 BAR(TYPICAL EACH FACE) CONCRETE COLLAR EXTENDED VALVE r------I w/G"THICK SOLID WALLS SLIP RESISTANT CLEATS
NOTE: CONCRETE SHALL BE 3000 PSI @ 28 DAYS STEM W/SUPPORT WATERPROOF Li
REINFORCING STEEL, ASTM AG 15, GRADE GO: FY-G0,000 P51 3' O.C. 2Z
(TYP.) I -
5TAINLE55 STEEL 1 2
ANTI-SEEP COLLAR DETAIL STEM GUIDES (TYP.) ELEVATION
SCALE : NONE 8" PLUG VALVE GROUT TO CORROSION RESISTANT MATERIAL
INVERT BARREL (RUBBER, PLASTIC)
INV. OUT
8" DIP DEWATERING SEE CHARTF Ll Z ,
O
INLET b q #3 OR#4 REBAR SECTION A-A
NCDENR Stormwater BMP Manual Chapter Revised 07-02-07 14
."
DEPTH VARIES
L SEE CHART
Figure 10-2 3"CLEAR STANDARD SLIP RE515TANT MANHOLE STEP DETAIL
= .; '.. � a
Basic Wet Detention Basin Elements #4 @ 1 2" EACH WAY SCALE : NONE
ANTI-FLOTATION
SEE CHART ^ v w7
tbpsk.ent#a��kment;width-5'criinfm •° -^�-.., Z-
NOTE: CONTINUOUS RUBBER WATER5TOP5 SHALL BE
PROVIDED AT ALL CONSTRUCTION JOINTS IN RISER IL
AND SECTIONS SHALL BE STRAPPED TOGETHER Z I'w` Z 1)
W/5TAINLE55 STEEL HARDWARE. O W u m
... Wxu
Z > o m
_ L S
pips _ ] �?
R15ER DETAIL for WET PONDS
Ga"'e&owltosuwcwre ___ _= SCALE : NONE Z m
-•-•- Seedbed Perparation: D W m
1. Chisel compacted areas and spread topsoil three inches deep over adverse soil conditions,if available. ,I 0 m
2. Rip the entire area to six inches deep. "7 0 8
Z
3. Remove all loose rock,roots,and other obstructions leaving surface reasonable smooth and uniform. , Q+F.mfl�' °o
"Cy�l waY 4. Apply agricultural lime,fertilizer and superphosphate uniformly and mix with soil(see mixture.
5. Continue tillage until a well-pulverized,firm reasonably uniform seedbed is prepared four to six inches deep. ._1 ( �
6. Seed on a freshly prepared seedbed and cover seed lightly with seeding equipment or cultipack after seeding. V
7. Mulch immediately after seeding and anchor mulch.
WET DETENTION BA51N 8. Inspect all seeded areas and make necessary repairs for reseedings within the planting season,if possible. If stand should be over 60%damaged,
reestablish following the original lime,fertilizer and seeding rates.
SCALE : NONE 9. Consult EFS Environmental Engineers on maintenance treatment and fertilization after permanent cover is established.
Mixture
Agricultural Limestone: 2 tons/acre(3 tons/acre in clay soils)
Fertilizer: 1,000 Ibs/acre-Q10-10-10 FF
it
Superphosphate: 500 lbs/acre-20/o analysis Mulch: 2 tons/acre-small grain strawLITTORAL SHELF- I IN HEIGHT
AND I O' WIDE @ 10: 1 SLOPE FOREBAY EMBANKMENT WITHAnchor: Asphalt Emulsion at 300 gals/acre
MARSH PLANTS AND SPILLWAY AROUND POND PERIMETER. LEVEL OF I" RUNOFF NORMAL POOL LEVEL TO BE G" TO PERMANENT POOL VOLUME � X �
BELOW THE TOP OF THE LITTORAL WHERE APPLICABLE EMERGENCY SPILLWAY
°
SHELF AND G" Seeding ABOVE THE BOTTOM g Schedule 4 0011 �
OF THE LITTORAL SHELF. FREEBOARD - I' MIN
NORMAL POOL EMBANKMENT STABILIZED For Shoulders,Side Ditches,Slopes(Max 3:1)
STORMWATER LEVEL WITH VEGETATION
INLET PROTECTION EMERGENCY SPILLWAY ELEV. Date Type Planting Rate
...................................
Q 10 ELEVATION I-I I I-I I Ed I I-I I I-I
Aug 15-Nov 1 Tall Fescue 300 Ibs/acre ((
Y°
I-III-III-III-)�I-I I I�I I I-III 3, V J
-III-III-III-III-III-) I I-III-III-III= S� OUTLET Nov 1 -Mar 1 Tall Fescue&Abruzzi Rye 300 Ibs/acre J
STORMWATER INLET , w Q�G O,o PROTECTION
��-° _-III=III=III-III=1�I-III-III III=III=III-I I - � F
SEDIMENT r PERMANENT 3\ I III III-III-III-I I -III-III- I-III-III-III- Mql. Mar 1 -Apr 15 Tall Fescue 300 Ibs/acre Q
FOREBAY /`� POOL _ _ _ _ _ _ _ _ _ _ _
�d r 15-Jun 30 Hulled C Bda bs W
10, AP Common ermu 9rass 25 I /acre
\ \` ANTI-SEEP Jul 1 -Aug 15 Tall Fescue AND Browntop Millet or Sorghum- 125 Ibs/acre(Tall Fescue);35 Ibs/acre(Browntop
PRINCIPAL o,e\ COLLAR / Sudan Hybrids*** Millet);30 Ibs/acre(Sorghum-Sudan Hybrids) Z Q z
NOTE: DRAWDOWN ORIFICE AT SPILLWAY _
FOR WATER QUALITY BASINS INVERT FOR SKIMMER BARREL Z
CUT-OFF TRENCH,
CONVERTED FROM RISER BASINS, O
CLEAN SEDIMENT, REMOVE SKIMMER SELECTED FILL For Shoulders,Side Ditches,Slopes(3:1 to 2:1) A-- nO O
AND INSTALL DRAWDOWN ORIFICE PLACED IN LAYERS Mar 1 -Jun 1 Sericea Lespedeza(scarified)and use the 50 Ibs/acre(Sericea Lespedeza); 1.1.._
TO DIAMETER INDICATED AT NORMAL ANTI-FLOTATION BLOCK AND COMPACTED 2' MIN following combinations: Z O
POOL ELEVATION. O
Mar 1 -Apr 15 Add Tall Fescue 120 Ibs/acre
Mar 1 -Jun 30 Or add Weeping Love Grass 10 Ibs/acre Lis LU J
C:5 a J
Mar 1 -Jun 30 Or add Julled Common Bermuda C W
WATER QUALITY rass 25 Ibs/acre 9
EMERGENCY MINIMUM A CD
RISER MIN. MIN. VOLUME DRAW DOWN BARREL BARREL RISER TOP BARREL BARREL TOP OF Q 10 ELEV. Q 100 ELEV. SPILLWAY WIDTH OF DEPTH OF SPILLWAY ANTI-FLOTATIOIO N DISSIPATOR
BA51N VOLUME PROVIDED ORIFICE SIZE LENGTH 51ZE RI5ER UPPER INV. LOWER INV. ORIFICE DAM ELEVATION" SPILLWAY SPILLWAY LINING CONCRETE SIZE Jun 1 -Sept 1 Tall Fescue AND Browntop Mullet or Sorghum- 120 Ibs/acre(Tall Fescue);35 Ibs/acre(Browntop CO
# REQ'D (CF) (CF) SIZE ELEV. ELEV. ELEV. ELEV. ELEV, Sudan Hybrids*** Mullet);30 Ibs/acre(Sorghum-Sudan Hybrids)
I I G,854 20,554 2" 24" 50' 5'x 5' 1505.50 503.30 503.05 504.00 507.8 50G.83 508. 1 1 WA N/A N/A WA N/A 1 2'x G'x 30"Thk. CIa55 B Sept 1 -Mar 1 Sericea Lespedeza(unhulled-unscarified) 70 Ibs/acre(Sericea Lespedeza); 120 Ibs/acre LU
2 G,G54 11,458 1 .7511 24" 100, 4'x 4' 531 .50 529.00 528.00 530.00 534.0 531 .98 532.29 WA N/A WA N/A 5'x 5'x G" 1 2'x G'x 30"Thk. CIa55 B AND Tall Fescue (Tall Fescue)
3 35,589 40,077 3" 30" 50' 5'X 5' 539.GO 53G.50 53G.25 535.00 544.15 542.05 543.14 542.10 15' 0.5' 18" d50 STONE G'x G'x G" 20'x 7.5'x 30"Thk. CIa55 I Nov 1 -Mar 1 And Abruzzi Rye 25 Ibs/acre Q
4 10,022 11,458 1 .75" 24" G8' 4'x 4' 537.50 535.00 534.00 53G.00 540.5 538.41 539.44 N/A N/A N/A N/A N/A 1 2'x G'x 30"Thk. CIa55 B
5 35,721 43,803 3" 30 1 130' 1 5'X 5' 1541 -701 535.00 1 534.35 1 540.00 1 545.2 1 542.9G 544.18 N/A N/A N/A N/A G'x G'x I' 24'x 9'x 30"Thk. CIa55 I
G 24,530 27,5G0 2.75" 30" GO' 5'x 5' 539.G0 53G.G0 53G.0 538.00 543.1 541 .34 542.07 540.80 20' 0.5' 21" d50 STONE G'x G'x 1 2" 15'x 7.5'x 30"Thk. Class B
Consult EFS Environmental Engineer for additional information concerning other alternatives for vegetation of denuded areas. The above vegetation
rates are those which do well under location conditions;other seeding rate combinations are possible.
Date:
June, 2005
***TEMPORARY: Reseed according to optimum season for desired permanent vegetation. Do not allow temporary cover to grow over 12"in height Scale:
NOTE: ALL BA511\15 UTILIZED A5 TEMPORARY SEDIMENT BA51N5 SHALL HAVE ALL SEDIMENT before mowing,otherwise fescue may be shaded out. N/A
REMOVED AND STORM WATER VOLUMES PROVIDED PER APPROVED PLANS.
Drawn:
y.= CPM
L
Checked:
De51cjn depth W 'W "� �+ �' AJF
De5i n to width MAINTENANCE
3 3 INSPECT TEMPORARY SEDIMENT BASINS AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT(1/2 INCH OR GREATER) RAINFALL EVENT AND REPAIR , P�O`��� Project No.
D I�~ I Q25 ELEV. I� i r IMMEDIATELY. REMOVE SEDIMENT AND RESTORE THE BA51N TO ITS ORIGINAL DIMENSIONS WHEN IT ACCUMULATES TO ONE-HALF THE DESIGN ae��,5� 1 1 5-09
_ DEPTH. PLACE REMOVED SEDIMENT IN AN AREA WITH SEDIMENT CONTROL. o)$V
� Compu
I I � I�' CHECK THE EMBANKMENT, SPILLWAYS, AND OUTLET FOR EROSION DAMAGE, AND INSPECT THE EMBANKMENT FOR PIPING AND SETTLEMENT. MAKE ter Dwg. Name
'T' ALL NECESSARY REPAIRS IMMEDIATELY. REMOVE ALL TRASH AND OTHER DEBRIS FROM THE RISER AND POOL AREA. 115-09-DA-Detad5.dwg
I I�I I �T
ALL BAFFLES SHALL BE O-RING RCP(UNLESS OTHERWISE NOTED).
GRAVEL BEDDING ALL RISERS SHALL BE G"SOLID WALL PRECAST CONCRETE STRUCTURES. FINAL DESIGN Sheet No:
EMERGENCY SPILLWAY OR FILTER FABRIC
WET DETENTION BA51N DETAIL
NOT RELEASED 4,
SCALE : NONE FOR CONSTRUCTION
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\ \ \ \ \ \ \ \ `?~1 ~ i' J / , / ! / / / / / / / / / / 1 Date: / / / / / / ! I 1 . \
\ \ \ \ \ _ - ! ! JUNE 2008 \ 1 1 1 \ \ \ \ \ \ \ / j ~ , l l I 1 I 1, ( / / / / \ ` ? ` \
\I 1 , 11 \ 1 \ ` \ _ % / / I! ! i I 1 i 1 ; 1 1 I\ \ l\ \ \ Scale:
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100' 50' 0 100' 200' \ _ .T ? / I I 1 \ \ _
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1 -100 Of-
SCALE: 1 1

2' 2.0' LD. 2' W
6" DOMED TRASH RACK Q
N0.6 REPAR W/ MAX. 12" EXTEND WHEEL ABOVE HORIZONTAL OPENING, MOUNTED
PRE-CAST BOX WITH HINGES AND HOLD DOWN
WATERPROOF AND TRASH RACK CLASP WITHIN THE INSIDE LIP OF
2' PRE-CAST BOX. LID SHOULD OPEN MASTIC (TYP.) AWAY FROM DAM.
24
8" 2.0' I.D.
STEPS 5"
VARIES I STEEL BAFFLE ~ A Z
2, SEE CHART ~ ~ C 0
W.Q. ORIFICE W.Q. ORIFICE EL. VARIES 0000000 0000000 c_n A >
6~~ SEE CHART PLAN SIDE ELEVATION ~
O
15° CONCRETE RISER POURED IN PLACE
#3 BAR (TYPICAL EACH FACE} CONCRETE COLIAR ° w/6" THICK SOLID WALLS SLIP RESISTANT CLEATS
EXTENDED VALVE
NOTE: CONCRETE 5HALL BE 3000 PSI Q 28 DAYS STEM W/ SUPPORT ° WATERPROOF REINFORCING STEEL, ASTM A615, GRADE 60: FY - 60,000 PSI 3' O.C. MASTIC (TYP.)
STAINLESS STEEL 12°
° ELEVATION
ANTE-SEEP COLLAR DETAIL STEM GUIDES (TYP.) CORROSION RESISTANT MATERIAL
SCALE :NONE 8" PLUG VALVE GROUT TO INVERT BARREL (RUBBER, PLASTIC)
INV. OUT
SEE CHART 8 DIP DEWATERING 0 z
INLET ..;,n .
p .aa. , NC.DBNR Stormwater BMP Manual C~a ter Revised 07.02-07 ° tl ' ^ #3 OR #4 REI DEPTH VARIES #3 OR #4 REBAR SECTION A-A
as 4'® ~Q. SEE CHART .
s° CLEAR - . ~a ~ ~ STANDARD SI Figure 10.2 ~NDARD SLIP RESISTANT MANf10LE STEP DETAIL
Basic Wet I3etentiozt Basin Elements #4 @ 12" EACH WAY SCALE :NONE U c
ANTI-FLOTATION
SEE CHART ~ ~ ea~ankment width -~`ai~infm~nn n ~ ro ^ 7 _ N_
NOTE: CONTINUOUS RUBBER WATERSTOPS SHALL BE 1L~JJ1 L N 6~ ~ ~
PROVIDED AT ALL CONSTRUCTION JOINTS IN RISER U ZW~Z~
.oa,~, ~;~.~M AND SECTIONS SHALL BE STRAPPED TOGETHER _~~-..;,a~~-.~1!@p'~=- tt~ WISTAINLESS STEEL HARDWARE. Z W um
fip~ebsy . O ~ m > om
Q-~~~
~tprp4 Win"
- - RISER DETAIL for WET PONDS ~ J~~N° aZ
tanaeten?~etsuutt~~ SCALE :NONE ~m
Seedbed Perparation: Q W
r 1. Chisel compacted areas and spread topsoil three inches deep over adverse soil conditions, if available. J ~ 2. Rip the entire area to soc inches deep. Z '7 0 5
3. Remove all loose rock, roots, and other obstructions leaving surface reasonable smooth and uniform. ~ > Q °o
~t@rgeitrJ3p~lwpy 4. Apply agricultural lime, fertilizer and superphosphate uniformly and mix with soil (see mixture . 5. Continue tillage until swell-pulverized, firm reasonably uniform seedbed is prepared four to six inches deep. J J
6. Seed on a freshly prepared seedbed and cover seed lightly with seeding equipment or cultipack after seeding. ~J
7. Mulch immediately after seeding and anchor mulch.
WET DETENTION BASIN 8. Inspect all seeded areas and make necessary repairs for reseedings within the planting season, iF possible, If stand should be over 60% damaged, reestablish following the original lime, fertilizer and seeding rates.
SCALE :NONE 9. Consult EFS Environmental Engineers on maintenance treatment and fertilization after permanent cover is established.
Mixture
Agricultural Limestone: 2 tonslaae (3 tons/acre in clay soils)
Fertilizer: 1,000 Ibslacre -010.10,10 ~~`1tGII~Bd~ Superphosphate: 500 Ibs/acre - 20 /o analysis ~ ~d. ~ ~ ~
Mulch: 2 tonslacre -small grain straw v`' °.~~n~io
LITTORAL SHELF - I' IN HEIGHT AND 10' WIDE @ 10: I SLOPE FOREBAY EMBANKMENT WITH Anchor: Asphalt Emulsion at 300 gals/acre o ' ro ti.j 1 ° •
AROUND POND PERIMETER. MARSH PLANTS AND SPILLWAY LEVEL OF I"RUNOFF d • Y * ~ a
NORMAL POOL LEVEL TO BE 6" TO PERMANENT POOL VOLUME ° .
BELOW THE TOP OF THE LITTORAL WHERE APPLICABLE EMERGENCY SPILLWAY SHELF AND 6" ABOVE THE BOTTOM + r b p .00* ®~O Seeding Schedule
OF THE LITTORAL SHELF. FREEBOARD - I' MIN °tl°Cn0
NORMAL POOL EMBANKMENT STABIt ~NKMENT STABILIZED For Shoulders, Side Ditches, Slopes {Max 3:1) r,~e?adf~'~W,~e~
STORMWATER LEVEL WITH VEGEtATION INLET PROTECTION 1 VEGETATION Date Type Planting Rate
~ EMERGENCY SPILLWAY ELEV.
Q I 0 ELEVATION = _ _ _ _ Aug 15 • Nov 1 Tall Fescue 300 Ibs/acre
II _ = 1= I=1 =1 = _ _ OUTLET Nov 1-Mar 1 Tall Fescue & Abruzzi Rye 300 Ibs/acre J
~ ~_III-III_I_______ S STORMWATER INLET \ w Q~ - _ - ~Op ~ - -III-I--~F PROTECTION
SEDIMENT PERMANENT ~ ~ ~ - - - - - - - - - - - tit s~ 3' ===11= ~ Mar 1-Apr 15 Tall Fescue 300 Ibs/acre ~l
II-III I III III BAY I III III III-III FORE ~ POOL - - - - - - - - - _ _
D p d 1`'-' Apr 15 -Jun 30 Hulled Common Bermudagrass 25 Ibs/acre W
la
i ~ U Jul 1 -Aug 15 Tall Fescue AND Browntop Millet or Sorghum - 125 Ibslacre (Tall Fescue); 35 Ibslacre (Browntop
PRINCIPAL ~ \ " \ ANTI-SEEP ^ ~ ~ Sudan Hybrids Millet); 30 Ibs/acre (Sorghum -Sudan Hybrids) ~ Q z
SPILLWAY COLLAR NOTE: DRAWDOWN ORIFICE AT
FOR WATER QUALITY BASINS INVERT FOR SKIMMER BARREL CUT-OFF TRENCH, o z
CONVERTED FROM RISER BASINS, CLEAN SEDIMENT, REMOVE SKIMMER SELECTED FILL For Shoulders, Side Ditches, Slopes (3:1 to 2:1) 0 0
AND INSTALL DRAWDOWN ORIFICE PLACED IN LAYERS Mar 1-Jun 1 Sericea Lespedeza (scarified) and use the 50 Ibslacre (Sericea Lespedeza);
TO DIAMETER INDICATED AT NORMAL ANTI-FLOTATION BLOCK AND COMPACTED 2' MIN following combinations: z O
POOL ELEVATION. Mar 1 -Apr 15 Add Tall Fescue 120 Ibs/acre O
tC ~ II~~_
Mar 1 -Jun 30 Or add Weeping Love Grass 10 Ibs/acre J J
c~~ J Q
WATER QUALITY Mar 1-Jun 30 Or add Julled Common Bemtudagress 25 Ibslacre C W
BARREL BAR L EMERGENCY MINIMUM ADD'L R15ER MIN. MIN. VOLUME DRAW DOWN BARREL BARREL RISER TOP RE TOP OF Q 10 ELEV. Q 100 ELEV. SPILLWAY WIDTH OF DEPTH OF SPILLWAY ANTI-FLOTATION DISSIPATOR
BA51N VOLUME PROVIDED ORIFICE SIZE LENGTH SIZE RISER UPPER INV. LOWER INV. ORIFICE DAM ELEVATION"' SPILLWAY SPILLWAY LINING CONCRETE SIZE DISSIPATOR ~ ~ a,,, SIZE Jun 1-Sept 1 Tall Fescue AND Browntop Mullet or Sorghum - 120 Ibslacre (TaA Fescue); 35 Ibslacre (Browntop ~
# REQ'D (CF) (CF) SIZE ELEV. ELEV. ELEV. ELEV. ELEV. Sudan Hybrids Mullet); 30 Ibslacre (Sorghum -Sudan Hybrids) p n /
I 16,854 20,854 2" 24" 50' 5' x 5' 505.50 503.30 503.05 504.00 507.8 506.83 508. I I WA WA NlA WA N / A 12' x 6' x 30° Thk. CI: x 6' x 30° Thk. Class B Sept 1-Mar 1 Sencea Lespedeza (unhulled - unscarified) 70 Ibs/acre (Sericea Lespedeza);120 ibs/acxe W
2 6,654 I I ,458 1.75° 24" 100' 4' x 4' 531.50 529.00 528.00 530,00 534.0 531.98 532.29 NIA NJA N!A NIA 5' x 5' x 6" 12' x 6' x 30" Thk. CIS x 6' x 30" Thk. Class B AND Tall Fescue (Tall Fescue)
3 38,589 40,077 3" 30" 50' 5' X 5' 539,60 536,50 536.25 538,00 544, 15 542.05 543.14 542.10 15' 0.5' I S" d50 STONE 6' x 6' x 6" 20' x 7.5' x 30"Thk. C 7.5' x 30" Thk. Class I Nov 1 -Mar 1 And Abruzzi Rye 25 Ibslacre Q
4 10,022 I I ,458 1.75" 24" 68' 4' x 4' 537.50 535.00 534.00 536.00 540.5 538.4 I 539.44 N / A NIA N / A NIA N / A 12' x 6' x 30" Thk. CI. x 6' x 30" Thk. Class B
5 35,72 I 43,803 3" 36" 130' 5' X 5' 541.70 535.00 534,35 540.00 545.2 542.96 544.18 N ! A N 1 A N / A NIA 6' x 6' x I' 24' x 9' x 30°Thk. CI: x 9' x 30°Thk. Class I
6 24,530 27,860 2.75" 30" 60' 5' x 5' 539,60 536.60 536.0 538.00 543. I 541.34 542.07 540.80 20' 0.5' 2 I" d50 STONE 6' x 6' x 12" 15' x 7.5' x 30" Thk. C 7.5' x 30" Thk. Class B
Consult EFS Environmental Engineer for additional information concerning other alternatives for vegetation of denuded areas. The above vegetation
rates are those which do well under location conditions; other seeding rate combinations are possible. ¦ir~rr Date;
June, 2008
TEMPORARY: Reseed according to optimum season for desired permanent vegetation. Do not allow temporary cover to grow over 12" in height Scale:
NOTE: ALL BASINS UTILIZED AS TEMPORARY SEDIMENT BASINS SHALL NAVE ALL SEDIMENT before mowing, otherwise fescue may be shaded out. ~ N/A
REMOVED AND STORM WATER VOLUMES PROVIDED PER APPROVED PLANS.
,~~\~J~; Drawn:
CPM a~
~ C : ~J~ Checked:
Design depth W MAINTENANCE
3 Desi n to ~ndth
- 3 INSPECT TEMPORARY SEDIMENT BASINS AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT (1/2 INCH OR GREATER) RAINFALL EVENT AND REPAIR ' ~ I ~ I Q25 ELEV. Ir r IMMEDIATELY. REMOVE SEDIMENT AND RESTORE THE BASIN TO ITS ORIGINAL DIMENSIONS WHEN IT ACCUMULATES TO ONE-HALF THE DESIGN ~P 0~'~~ Project No.
0 - - ~ ~ DEPTH. PLACE REMOVED SEDIMENT IN AN AREA WITH SEDIMENT CONTROL. , of ~ ~a5~ 115-09
( I I CHECK THE EMBANKMENT, SPILLWAYS, AND OUTLET FOR EROSION DAMAGE, AND INSPECT THE EMBANKMENT FOR PIPING AND SETTLEMENT. MAKE ~~s~, Computer Dwg. Name 115-09-DA-Detads.dwg
i I ~I ALL NECESSARY REPAIRS IMMEDIATELY. REMOVE ALL TRASH AND OTHER DEBRIS FROM THE RISER AND POOL AREA. I II I
I ~ ~ - I ~ i I ~ I ALL BAFFLES SHALL BE 0-RING RCP UNIFSS OTHERWISE NOTED . - I-T~ ( )
GRAVEL BEDDING ALL RISERS SHALL BE 6" SOLID WALL PRECAST CONCRETE STRUCTURES.
EMERGENCY SPILLWAY OR FILTER FABRIC FINAL DESIGN Sheet-~
WET DETENTION BASIN DETAIL NOT RELEASED 4,
SCALE :NONE
FIt1R ('(1NCTRI Ilf'TI(1N
Of
II