HomeMy WebLinkAboutR-404808co
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2'•4" ROCK
�1
SECTION A
L
L = THE DISTANCE SUCH THAT POINTS B 18' MIN.
SECTION B
NOTES:
1. CONDITIONS DF USE
WHER£ THERE IS COkGENTRATED RUNOFF FROM DISTURBED AREAS TO AND PROM SEDIMFNT PONDS OR TRAPS.
1.2. TO CONVEY RUNOFF INTERCEPTED FROM UNDISTURBED AREAS AROUND THE SITE TO A NON -EROSIVE DISCHARGE POINT,
2 MAINTENANCE STANDARDS
2-I. ANY S@biMPNT bt06kIY7oN of MbOt "HAN 6 4N6HE5 SHALL M R@M6VEb S6 THAT THE L`HANTIPL IS Fi4�576REb To lis 6FTI6IHAL bFSIGk 66PACFTV.
22. THE CHECK DAMS SHALL BE EXAMINED FOR SIGNS OF SCOURING AND EROSION OF THE 8ED AND BATIKS. IF SCOURING AND EROSION HAS OOCURRE❑
AFFECTED AREAS S4-W L BE PROTECTED BY RIPRAP OR AN EROSIDN CONTROL BLANKET OR NET
VNLFSSOTHERWISE NDTED,ORAWING 15 NQTT4SCALE (NTSF
510. PLAN - 217.40
PUBLIC WORKS DITCH CHECK DAMS P R D: 9/28/2018 1
UR4DEPARTMENT GAG
NklggF
2
2 MAX
LEVEL BOTTOM MAX 1 �
IZ, M1
h� F
�+2' MIN.
SWALE SPACING DEPENDS 04 SLOPE GRADIENT
NOTES:
i. CONDITIONS OF USE
1.1. REQUIRED AT:
".I- THE TOP OF ALL SLOPES IN ESLCESS OF 3H1 V AND WITH MORE THAN 20 FEET OF VERTICAL RELIEF.
1.1.2 AT INTERVALS ON ANY SLOPES THAT EXCEEDS THE DIMENSIONS SPECIFIED BELOW.
AVERAGESLOPE
SLOPEPERCENT
FLOW PATH LENGTH
ZOHA V (OR LESS)
3-5%
300 FEET
(10T020)H_1V
5-10°S
200 FEET
14 TO 101H:1V
70.2595,
100 FEET
(2TD4)H'IV
25-80%
50 FEET
2- DESIGN AND INSTALLATION SPECIFICATIONS
2.1. FOR SLOPES STEEPER THAN 214:1 V WITH MORE THAN 10 FEET OF VERTICAL RELIEF, BENCHES MAY 8E CONSTRUCTED OR CLOSER SPACED
INTERCEPTOR SWALES MAYBE USED. THE DESIRED MEASURE MUST BE DESIGNED BY AN ENGINEER TO Ef FECTIVELY INTERCEPT THE HIGH VELOCITY
RUNOFF TO A SEDIMENT POND OR TRAP.
2.4 CONSTRUCTION TRAFFIC OVER TEMPORARY SWALES SHALL BE MINIMIZED.
& MAINTENANCE STANDARDS
3.1. DAMAGE RESULTING FROM RUNOFF OR CONSTRUCTION ACTIVITY SHALL BE REPAIRED IMMEDIATELY.
3.2. IF THE FACILITIES DO NOT REGULARLY RETAIN STORM RUNOFF, THE CAPACITY ANDIOR FREQUENCY OF THE SWALES SHALL BE INCREASED}.
UNLESS OTFIr9W15E NOTED, DRAWING 15 NO �TFo W4LE (NTs;
STD. PLAN
S-y 21p1.10
,� PUBLIC WORKS D.
INTERCEPTOR SWALE PPR 9/29/2018 1
'*ice DEPARTMENT GAZ
PATE
KEY DIVIDER INTO SLOPE TO
PREVENT FLOW AROUND SIDES
ASBUILT TESC NOTES AND DETAILS
OF
FOREST TERRACE PLAT
A PORTION OF SECTION 04, TOWNSHIP 23 N., RANGE 05 E., W.M.
CITY OF RENTON, KING COUNTY, WASHINGTON
EMERGENCY
OVERFLOW
SPILLWAY
dND LErlGTH [3 TO B TIMESTHE
'
MAX. POND WIDTH}INiFLOW
-FENCEOR
RISER
t;EQUNALENT
DISCHARGE TO STABILIZED
DIVIDER PIPE
CONVEYANCE, OUTLET, OR
I
I
LEVEL SPREADER
RISEN PIPE (PRINCIPAL SPILLWAY),
OPEN AT TOP WITH TRASH RACK -
DE1NA7ERI NG DEVICE
' (SEE RISER DETAIL.
S STD, PLAN 216.10)
J�N
WIRE-BACKED SILT FENCE, STAKED HAY BALES WRAPPED WITH FILTER FABRIC, OR EQUIVALENT DIVIDER
CREST OF
EMERGENCY
SPILLWAY
EMBANKMENT COMPACTED 95,,.-
PERVIOUS MATERIALS SUCH AS GRAVEL
12' ,y
OR CLEAN SAND SHALL NOT BE USED
-y
N
u ? L s
DEWATERING ORIFICE
DISCHARGE TO STABILIZED
CONCRETE BASE J CONVEYANCE, CUTLET, OR
J.
LIEVELSPREADER
NOTES-
I- CONDITION DF USE
1.1. A SEDIMENT POND SHALL BE USED WHERE THE CONTRIBUTING DRAINAGE AREA IS ACRES OR MORE
L DESIGN AND INSTALLATION SPECIFICATLONS
2.1. THE POND SHALL SE DIVIDED INTO TWO ROUGHLY EQUAL VOLUME CELLS BY A PERMEABLE DIVIDER THAT WILL REDUCE TURBULENCE WHILE ALLOWING
MOVEMENT OF WATER BETWEEN CELLS -THE DIVIDER SHALL BEAT LEAST CNE HALF OF THE HEIGHT OF THE RISER. WIRE -BACKED, 2-T0 3 FOOT HIGH, EATRA
STRENGTH FILTER FABRIC SUPPORTED BY TREATED 4"X4"s MAYBE USED AS A DIVIDER. AL7ERNA7IVELY, STAKED STRAW BALES WRAPPED WITH FILTER
FABRIC MAY BE USED.
2.2. IF THE POND IS MORE THAN 6 FEET DEEP, A DIFFERENT MECHANISM MUST BE PROPOSED.
2.3. TO AID IN DETERMINING SEDIMENT DEPTH, ONE -FOOT INTERVAL$ SHALL BE PROMINENTLY MARRED ON THE RISER.
1, MAINTENANCE STANDARDS
3.1, SEDIMENT SHALL BE REMOVER FROM THE POND WHEN IT REACHES 1 FOOT IN DEPTH
32 ANY DAMAGES TO THE POND EM&ANKIAENT9 OR SLOPES SHALL BE REPAIRED-
VNLESS ATHERWISE ND7ED, DRAWING IS 1407 TO SCALE 1.1.
BTU. PIAN - 216.00
*. PUBLIC WORKS SEDIMENT POND PLAN VIEW AND ROW'.
'*I� DEPARTMENT CRC15� S�CTICSN$ G� 9/28/2018 1
W MIN
12'DEPTH 2"-4'ROCK
24' MIN. SETTLING DEPTH !I
9 T
3.5'•6' �7I..
I
T.5' MIN. SEDIMENT STORAGE -+
12. OVERFLCFLV
DEPTH
OUTFLOW CHANNEL IF
r CONSTRUCTED BY
n EXCAVATION
7
12" DEPTH 3f4" -1 lir
WASHED GRAVEL
FILTER FABRIC FENCING
{
PROVIDE ADEQUATE STRAPPING
POLYETHYLENE CAP
PERFORATED POLYETHYLENE DRAINAGE
TUBING, DIAMETER 2' MIN, LARGER THpAN
DEWATERING ORIFICE. TUBING SHALL
COMPLY WITH ASTM F567 AND AASHTO M294
CORRUGATED
METAL RISER
WATERTIGHT COUPLING
TACK WELD
EI'
DEWATERING ORIFICE, SCH 441 STEEL STUB. MIN, a B' MIN
DIAMETER AS PER CALCULATIONS IN SECTION D.2.1.5.2 OF I - - - .
THE CITY OF RENTON SURFACE WATER DESIGN MANUAL a L
a 4
` e 4. 14" MIN
CONCRETE RA$E
" (ALTERNATIVELY, METAL STAKES AND WIRE
MAY BE USED TO PREVENT FLOTATION)
4 %
a
2 x RISER DIA MIN.
NOTES:
1 SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
UNLESS OTIHERWISE NDTE D, DRAWING 15 NOTYO SCAMS (NISI
STD. PLAN - 216.10
URJPUBLIC WORKS SEDIMENT POND RISER DETAIL PP D. 9/28/2018 {
DEPARTMENT GAZ
DATE
TSZ0.dGROAD
R=25' MIN-
�1/-
INSTALL DRIVEWAY CULVERT
IF THERE 15 A ROADSIDE
DITCH PRESENT, AS PER CITY
ROAD STANDARDS
4"-8' QUARRY SPALLS
GEOTEXTILE
CONSYRUVTION ENTRANCE NOTES:
T. TESHALE BE PAVED TO
THEHE EDGE OF THE RIGHT-OF-WAY
PRLDR TO INSTALLATION OF THE
CONSTRUCTION ENTRANCE TO
AVOID DAMAGING OF THE
ROADWAY
2. IT IS RECOMMENDED THAT THE
ENTRANCE BE CROWNED SO THAT
RUNOFF DRAINS OFF THE PAD
7Do' MIN
1SMIN,
PROVIDE FULL WIDTH OF
iNGRES&EGRESS AREA
12' MIN. THICKNESS
MOTES:
1. CONDITIDN OF USE
1.1 CONSTRUCTION ENTRANCE SHALL BE STABILIZED WHEREVER TRAFFIC WILL BE LEAVING A CONSTRUCTION SITE AND TRAVELING ON PAVED ROADS OR OTHER
PAVED AREAS WITHIN 1,DW FEET OF THE SITE
1.2 FOR RESIDENTIAL CONSTRUCTION PROVIDE STABILIZED CONSTRUCTION ENTRANCES FOR EACH RESIDENCE IN ADDITION TO THE MAI N SUBDIVISION
ENTRANCE. STABILIZED SURFACES SHALL BE OF SUFFICIENT LENGTHNMIDTH TO PROVIDE VEHICLE ACCESSPARKING. BASED ON LOT SIZE1CCPNFIGURA70N.
2, DESIGN AND INSTALLATtION SPECIFICATIONS
2.1. A SEPARATION GEOTEHTRE SHALL RE PLACED UNDER THE SPALLS TO PREVENT FINE SEDIMENT FROM PUMPING UP INTO THE ROCK PAD. THE DEOTEXI ILL.
SMALL MEET THE FOLLOWItrG STANDARDS -
GRAB TENSILE STRENGTH [ASTM D4632]
200 LES. MIN.
GRAB TFN5I1,E ELONGATION(ASTM 04B32)
W% MAX. (WOVEN)
CB R PUNCTURE STRENGTH (ASTM D6241)
4135 LBS, MIN.
A05 I ASTM 04751)
2D-45 (U.S. STANDARD SIEVE SIZE)
22.
DD NOT USE CRU BRED CONCRETE, CEMENT, CR CALCIUM CHLORIDE FOR CONSTRUCTION ENTRANCE STAB IDZA7ION BECAUSE THESE PRODUCTS RAISE PH
LEVELS IN STORM WATER AND CONCRETE DISCHARGE TO SURFACE WATERS OF THE STATE IS PROHIBITED.
2.3.
HOG FUEL {WOOD BASED MULCH) MAYBE 5UBSTTFUTfO FOR OR COMBINED WITH QUARRY SPALLS IN AREAS THAT WILL NOT BE U5E0 FOR PERMANENT ROADS
FLOG FUEL IS NOT RECOMMENDED FOR ENTRANCE STABILIZATION IN URBAN AREAS. THE INSPECTOR MAY AT ANYTIME REQUIRE THE USE OF QUARRY SPALLS
IF THE HOG FUEL IS NUT PREVENTING SEDIMENT FROM BEING TRACKED ONTO PAVEMENT OR IF THE HOG FUEL IS BEING CARRIED ONTO PAVEMENT
2.4.
FENCING SHALL BE INSTALLED AS NECESSARY TO RESTRICT TRAFFIC TO THE CONSTRUCTION ENTRANCE.
NOTES:
25.
WHENEVER POSSIBLE, THE ENTRANCE SHALL BE CONSTRUCTED ON A FIRM, COMPACTED SUBGRADE. THIS CAN SUBSTANTIALLY INCREASE THE
EFF€CTIV€N@58 OF THE PAD AND REDUCE THE NEED FOR MAINTENANCE
1. MAY BE CONSTRUCTED BY EXCAVATION OR BY 9UILDINGABERM
URIPUBLIC WORKS
DEPARTMENT
BENCHMARK
FOUND PUNCHMARK IN 1 %" BRASS FOUND PUNCHMARK IN BRASS PIN
DATUM DISK IN CONCRETE MONUMENT IN CASE IN CONCRETE MONUMENT IN CASE
0.4' BELOW GRADE (7/20/2017) 1.4' BELOW GRADE (7/20/2017)
HORIZONTAL DATUM: VERTICAL DATUM: OBSERVED (NAD 83/11) OBSERVED (NAD 83/11)
NAD '83/'11 NAVD '88 N:191092.94, E:1311476.14 N:191241.77, E:1311481.30
3. EAINTENANCE STANDARD$
3-1. QUARRY SPALLS SHALL BE ADDED IF THE PAD IS NO LONGER IN ACCORDANCE WFFH THE SPECI FICATICNS.
32 IF THE ENTRANCE 15 NOT PREVENTING SEDIMENT FROM BEING TRACKED ONTO PAVEMENT. THEN ALTERNATIVE MEASURES TO KEEP THE STREETS FREE OF
SEDIMENT SHALL BE USED. THIS MAY INCLUDE STREET SWEEPING, AN INCREASE IN THE DIMENSIONS OF THE ENTRANCE, OR THE INSTALLATION OF A WHEEL
WASH. IF WASHING IS USED, IT SHALL BE DONE DN AN AREA CDVERED WITH CRUSHED ROCK, AND WASH WATER SHALL DRAIN TO A SEDIMENT TRAP OR POND.
5.3. ANY SEDIMENT THAT IS TRACKED ONTO PAVEMENT SHALL BE REMOVED IMMEDIATELY BY SWEEPING. THE SEDIMENT COLLECTED BY SWEEPING SHALL BE
REMOVED OR STABILIZEI ON SFTE. THE PAVEMENT SHALL NOT BE CLEANED BY WASHING DOWN THE STREET, EXCEPT WHEN SWEEPING IS INEFFECTIVE AND
THERE IS A THREAT TO PUBLIC SAFETY. IF 17 IS NECESSARY TC WASH THE STREETS, A SMALL SUMP MUST BE CONSTRUCTED. THE SEDIMENT WOULD THEN BE
WASHED INTO THE SUMP WHERE F CAN BE CONTROLLED AND DI5CHARr ED APPROPRIATELY. WASH WATER MUST BE PUMPED BACK ONTO THE SITE AND
CANNOT DISCHARGE TO SY5T✓=MS TRIBUTARY TO SURFACE WATERS.
3.4. ANY QUARRY SPALLS THAT ARE LOOSENED FROM THE PAD AND END UP ON THE ROADWAY SHALL BE REMOVED IMMEDIATELY.
S.B. IF VEHICLES ARE ENTERING OR EXITING THE SITES AT POINTS OTHER THAN THE CONSTRUCTION ENTRANCE(S). FENCING Si-ML BE INSTALLED TO CONTROL
VNLESS OTFIERWISI' 1177E0, DRAWING I5 NO7 TU SCALE lr- TRAFFIC.
UNLESS OTHERWISE NOTED, DRAINING IS NPr TO SCALE (NTSI
STD. PLAN - 211.00 STD. PLAN - 215.10
PPP.... -
SEDIMENTTRAP PUBLIC WORKS PpR°YED;
qZ 9/28/2018 1 DEPARTMENT STABILIZED CONSTRUCTION ENTRANCE GAZ 9/2812018 I :4
... .. ,... � DATE
DATE
1 RECORD DRAWINGS AS BUILT TJS 1/12/22 BJT SURVEYED: SCALE.
VERTICAL: NAVD 1988
N/A HORIZONTAL• NAD 1983/1991
DESIGNED:
TJS
DRAWN:
TJS ONE INCH DATU M
CHECKEDBJT AT FULL SCALE
IF NOT ONE INCH
NO. REVISION BY DATE AP P R APPROVED: SCALE ACCORDINGLY
BJT
5" MAX.
DRAINAGE GRATE TRIM
GRATE FRAME _
QVERFLOW BYPASS
BELOW INLET GRATE DEVICE
8IRDIMFAIT AND DEBRIS
FILTERED
WATER
SECTION VIEW
DRAINAGE GRATE
(RECTANGULAR GRATE SHOWN) RETRIEVAL SYSTEM (TYP.)
I
OVERFLOW BYPASS (TYP,)
BELOW INLET GRATE DEVICE
ISOMETRIC VIEW
NOTES.
1. PROTECTION SHALL BE PROVIDED FOR ALL STORM DRAIN INLETS DOWNSLOPE AHD WITRN 50O FEET OF A DISTURBED OR
CONSTRUCTION AREA. UNLESS THE RUNOFF THAT ENTERS THE CATCH BASIN WILL BE CONVEYED TO A SEDIMENT POND OR TRAP,
2 INLET PROTECTION SHALL BE USED TO PROTECT THE DRAINAGE SYSTEM.
3. THE CONTRIBUTING DRAINAGE AREA MUST NOT BE LARGER THAN ONE ACRE.
4. SIZE THE BELOW INLET GRATE DEVICE {BIGOT FOR THE 5TORMWATER STRUCTURE 11,
WILL SERVICE.
5- THE BFCip SHALL HAVE A BUILT-IN HIGH+LDW RELI€F SYSTEM EC!VERFLOW BYPASS},
B- THE RETRIEVAL SYSTEM MUST ALLOW REMOVAL OF THE BIGU WITHOUT SPILLING THE COLLECTED MATERIAL,
7. PERFORM MAINTENANCE IN ACCORDANCE WITH STANDARD SPECIFICATION 8-01.205)
8. ANY SEDIMENT IN THE CATCH BASIN INSERT SHALL BE REMOVED WHEN THE SEDIMENT HAS FILLED ONE-THIRD OF THE AVAILABLE
STORAGE THE FILTER MEDIA FOR THE INSERT SHALL BE CLEANED OR REPLACED AT LEAST MONTHLY,
UNLESS OTHERWISE NOTED, DRAWING 15 NOT TO SCALE (NISI
STD. PLAN - 216.30
PURU$LIC WORKS PPR Ea:
DEPARTMENT CATCH BASIN INSERT ( 9/28/2018 1
w
DATE
TENSAR GS-1 SAFETY FENCE OR EQUAL
(BRIGHT ORANGE PLASTIC MESH)
10'
14 CA. CAI VANI7FD WIRE
11
' I STEEL FENCE POST 6' HIGH MIN.
u
NOTE:
1: CLIP FENCE TO GALVANIZED WIRE @ 5 FOOT ON -CENTER SPACING
2. WIRE FENCE TO STEEL FENCE POST
TEMPORARY N.G.P.E. FENCE DETAIL
NOT TO SCALE
vRi CITY OF
RENTON
Planning/Building/Public Works Dept.
J. TAB
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ASBUILT TESC NOTES AND DETAILS
DATE,
2/7/2022
LLJ
m
FOREST TERRACE PLAT
�Oo
�8001'
PULTE GROUP, INC
DRAWING NO:
3535 FACTORIA BLVD S.E., #600
LL J
oc
BELLEVUE, WA 98006
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SHEET: 0R
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