HomeMy WebLinkAboutR-423007DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
2"x2" 14 GAUGE WIRE, OR
EQUIVALENT, IF STANDARD
STRENGTH FABRIC USED
FILTER FABRIC
6' MAX. -
POST SPACING MAY BE INCREASED 4"x4" MIN. TRENCH
TO V IF WIRE BACKING IS USED I I
BACKFILL TRENCH WITH NATIVE SOIL
OR 3/4' TO 1-1/2" WASHED GRAVEL
2"x4" WOOD POSTS, STEEL FENCE POSTS, OR EQUIVALENT (TYP.)
2' MIN
NOTES:
1. CONDITIONS OF USE
1.1. SILT FENCE MAY BE USED DOWNSLOPE OF ALL DISTURBED AREAS.
1.2. SILT FENCE IS NOT INTENDED TO TREAT CONCENTRATED FLOWS, NOR IS IT INTENDED TO TREAT SUBSTANTIAL AMOUNTS OF OVERLAND FLOW. ANY CONCENTRATED
FLOW MUST BE CONVEYED THROUGH THE DRAINAGE SYSTEM TO A SEDIMENT TRAP OR POND.
2. DESIGN AND INSTALLATION SPECIFICATIONS
2.1. THE GEOTEXTILE USED MUST MEET THE STANDARD LISTED BELLOW. A COPY OF THE MANUFACTURER'S FABRIC SPECIFICATIONS MUST BE AVAILABLE ON SITE.
ADS (ASTM D4751)
30-100 SIEVE SIZE (0.60-0.15mm) FOR SILT FILM
50-100 SIEVE SIZE (0.30-0.15mm) FOR OTHER FABRICS
WATER PERMITTIVITY (ASTM D4491)
0.02 SEC -' MINIMUM
GRAB TENSILE STRENGTH (ASTM D4632)
180 LBS. MIN. FOR EXTRA STRENGTH FABRIC
100 LBS. MIN. FOR STANDARD STRENGTH FABRIC
GRAB TENSILE ELONGATION (ASTM D4632)
30% MAX. (WOVEN)
ULTRAVIOLET RESISTANCE (ASTM D4355)
70% MIN.
2.2. STANDARD STRENGTH FABRIC REQUIRES WIRE BACKING TO INCREASE THE STRENGTH OF THE FENCE. WIRE BACKING OR CLOSER POST SPACING MAY BE REQUIRED
FOR EXTRA STRENGTH FABRIC IF FIELD PERFORMANCE WARRANTS A STRONGER FENCE.
2.3. WHERE THE FENCE IS INSTALLED, THE SLOPE SHALL NOT BE STEEPER THAN 2H:1V
2.4. IF A TYPICAL SILT FENCE IS USED, THE STANDARD 4"X4" TRENCH MAY BE REDUCED AS LONG AS THE BOTTOM 8 INCHES OF THE SILT FENCE FABRIC IS WELL BURIED AND
SECURE IN A TRENCH THAT STABILIZES THE FENCE AND DOES NOT ALLOW WATER TO BYPASS OR UNDERMINE THE SILT FENCE.
2.5. FILTER FABRIC FENCES SHALL BE INSTALLED ALONG CONTOURS WHENEVER POSSIBLE.
3. MAINTENANCE STANDARDS
3.1. ANY DAMAGE SHALL BE REPAIRED IMMEDIATELY.
3.2. IF CONCENTRATED FLOWS ARE EVIDENT UPHILL OF THE FENCE, THEY MUST BE INTERCEPTED AND CONVEYED TO A SEDIMENT TRAP OR POND.
3.3. IT IS IMPORTANT TO CHECK THE UPHILL SIDE OF THE FENCE FOR SIGNS OF THE FENCE CLOGGING AND ACTING AS A BARRIER TO FLOW AND THEN CAUSING
CHANNELIZATION OF FLOWS PARALLEL TO THE FENCE. IF THIS OCCURS REPLACE THE FENCE OR REMOVE THE TRAPPED SEDIMENT.
3.4. SEDIMENT MUST BE REMOVED WHEN SEDIMENT IS 6 INCHES HIGH.
3.5. IF THE FILTER FABRIC (GEOTEXTILE) HAS DETERIORATED DUE TO ULTRAVIOLET BREAKDOWN, IT SHALL BE REPLACED.
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
STD. PLAN - 214.00
• PUBLIC WORKS SILT FENCE PR
DEPARTMENT GAZ 9/28/2018
Public Works Administrator DATE
THE APPLICANT SHALL ERECT AND MAINTAIN A SIX-FOOT (6) HIGH CHAIN
LINK TEMPORARY CONSTRUCTION FENCING AROUND THE DRIP LINES OF ALL
RETAINED TREES OR A T A DISTANCE SURROUNDING THE TREE EQUAL TO
ONE AND ONE -QUARTER FEET (1-1/4) FOR EVERY ONE INCH (1') OF
TRUNK CALIPER, WHICHEVER IS GREATER, OR ALONG THE PERIMETER OF A
TREE PROTECTION TRACT. PLACARDS SHALL BE PLACED ON FENCING
EVERY FIFTY FEET (50) INDICATING THE WORDS, 'NO TRESPASSING -
PROTECTED TREES. " OR ON EACH SIDE OF THE FENCING If LESS THAN
FIFTY FEET (50) SITE ACCESS TO INDIWDUALL Y PROTECTED TREES OR
GROUPS OF TREES SHALL BE FENCED AND SIGNED. INDIVIDUAL TREES
SHALL BE FENCED ON FOUR (4) SIDES. IN ADDITION, THE APPLICANT SHALL
PROVIDE SUPERVISION WHENEVER EQUIPMENT OR TRUCKS ARE MOVING
NEAR TREES.
NOTE.
I MIN/MUM SIX (6) FOOT HIGH TEMPORARY CHA/NLINK FENCE SHALL BE PLACED A T THE
FROM TREE DRIPLINE OR DESIGNATED LIMIT OF DISTURBANCE OF THE TREE TO BE
SA VED. FENCE SHALL COMPLETEL Y ENCIRCLE TREES) INSTALL FENCE POSTS USING
PIER BLOCK ONL Y" MODIFICA77ONS TO FENCING MATERIAL AND LOCATION MUST BE
APPROVED BY PLANNING OFFICIAL.
2. TREATMENT OF EXPOSED ROOTS DURING CONSTRUC17ON. FOR ROOTS OVER ONE (1)
INCH DIAMETER DAMAGED DURING CONSTRUCTION, MAKE A CLEAN STRAIGHT CUT TO
REMOVE THE DAMAGED PORTION OF ROOT. ALL EXPOSED ROOTS SHALL BE
TEMPORARIL Y COVERED WITH DAMP BURLAP TO PREVENT DRYING, AND COVERED WITH
SOIL AS SOON AS POSSIBLE.
3. NO STOCKPILING OF MATERIALS, VEHICULAR TRAFFIC, OR STORAGE OF EQUIPMENT OR
MACHINERY SHALL BE ALLOWED WITHIN THE L/M/T OF THE FENCING. FENCING SHALL
NOT BE MOVED OR REMOVED UNLESS APPROVED BY THE CITY PLANNING OFFICIAL.
WORK WITHIN THE PROTECTION FENCE SHALL BE DONE MANUALL Y UNDER THE TREE DR/PL/NE
SUPERVISION OF AN ON -SITE ARBORIST AND WITH PRIOR APPROVAL BY THE CITY
PLANNING OFF/C/AL.
4. ALL AREAS WITHIN THE REQUIRED FENCING SHALL BE COVERED COMPLETE,• Y AND
EVENL Y WITH A M/N/MUM OF THREE (Y) OF BARK MULCH PRIOR TO INSTALLA77ON OF
THE PROTECTIVE FENCING./
TREE PROTECT/ON FENCING
:45 AN
EX1�''11NG ROPO
R = 25' MIN. �f
�C •-
INSTALL DRIVEWAY CULVERT
IF THERE IS A ROADSIDE
DITCH PRESENT, AS PER CITY
ROAD STANDARDS
4"-8" QUARRY SPALLS
GEOTEXTILE
12" MIN. THICKNESS
100' MIN.
1. DRIVEWAYS SHALL BE PAVED TO
THE EDGE OF THE RIGHT-OF-WAY
PRIOR 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
15' MIN.
PROVIDE FULL WIDTH OF
INGRESS/EGRESS AREA
NOTES:
1. CONDITION 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 1,000 FEET OF THE SITE.
1.2. FOR RESIDENTIAL CONSTRUCTION PROVIDE STABILIZED CONSTRUCTION ENTRANCES FOR EACH RESIDENCE IN ADDITION TO THE MAIN SUBDIVISION
ENTRANCE. STABILIZED SURFACES SHALL BE OF SUFFICIENT LENGTH/WIDTH TO PROVIDE VEHICLE ACCESS/PARKING, BASED ON LOT SIZE/CONFIGURATION.
2. DESIGN AND INSTALLATION SPECIFICATIONS
2.1. A SEPARATION GEOTEXTILE SHALL BE PLACED UNDER THE SPALLS TO PREVENT FINE SEDIMENT FROM PUMPING UP INTO THE ROCK PAD. THE GEOTEXTILE
SHALL MEET THE FOLLOWING STANDARDS:
GRAB TENSILE STRENGTH (ASTM D4632)
200 LBS. MIN.
GRAB TENSILE ELONGATION (ASTM D4632)
30 % MAX. (WOVEN)
CBR PUNCTURE STRENGTH (ASTM D6241)
1495 LBS. MIN.
AOS (ASTM D4751)
20-45 (U.S. STANDARD SIEVE SIZE)
2.2. DO NOT USE CRUSHED CONCRETE, CEMENT, OR CALCIUM CHLORIDE FOR CONSTRUCTION ENTRANCE STABILIZATION BECAUSE THESE PRODUCTS RAISE pH
LEVELS IN STORMWATER AND CONCRETE DISCHARGE TO SURFACE WATERS OF THE STATE IS PROHIBITED.
2.3. HOG FUEL (WOOD BASED MULCH) MAY BE SUBSTITUTED FOR OR COMBINED WITH QUARRY SPALLS IN AREAS THAT WILL NOT BE USED FOR PERMANENT ROADS.
HOG FUEL IS NOT RECOMMENDED FOR ENTRANCE STABILIZATION IN URBAN AREAS. THE INSPECTOR MAY AT ANY TIME REQUIRE THE USE OF QUARRY SPALLS
IF THE HOG FUEL IS NOT 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.
2.5. WHENEVER POSSIBLE, THE ENTRANCE SHALL BE CONSTRUCTED ON A FIRM, COMPACTED SUBGRADE. THIS CAN SUBSTANTIALLY INCREASE THE
EFFECTIVENESS OF THE PAD AND REDUCE THE NEED FOR MAINTENANCE.
3. MAINTENANCE STANDARDS
3.1. QUARRY SPALLS SHALL BE ADDED IF THE PAD IS NO LONGER IN ACCORDANCE WITH THE SPECIFICATIONS.
3.2. IF THE ENTRANCE IS 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 ON AN AREA COVERED WITH CRUSHED ROCK, AND WASH WATER SHALL DRAIN TO A SEDIMENT TRAP OR POND.
3.3. ANY SEDIMENT THAT IS TRACKED ONTO PAVEMENT SHALL BE REMOVED IMMEDIATELY BY SWEEPING. THE SEDIMENT COLLECTED BY SWEEPING SHALL BE
REMOVED OR STABILIZED ON SITE. 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 IT IS NECESSARY TO WASH THE STREETS, A SMALL SUMP MUST BE CONSTRUCTED. THE SEDIMENT WOULD THEN BE
WASHED INTO THE SUMP WHERE IT CAN BE CONTROLLED AND DISCHARGED APPROPRIATELY. WASH WATER MUST BE PUMPED BACK ONTO THE SITE AND
CANNOT DISCHARGE TO SYSTEMS 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.
3.5. IF VEHICLES ARE ENTERING OR EXITING THE SITES AT POINTS OTHER THAN THE CONSTRUCTION ENTRANCE(S), FENCING SHALL BE INSTALLED TO CONTROL
TRAFFIC.
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
STD. PLAN - 215.10
,• PUBLIC WORKS APPROVED:
��� DEPARTMENT STABILIZED CONSTRUCTION ENTRANCE GAZ 9/28/2018
Public Works Administrator DATE
NO SCALE
:i..' Lei T D.2.1.2.R EROSION CONTROL •TRODSEE[) MIX
Common Name/Latin Name
% Species
Composition
Desired Seeds
per
Square Foot
PL
Pounds/Acre
Spike bentgrasslAgrostrs exarata
6
9
0.1
California bromelBromus earinatus
15
23
9.8
Tufted hairgrasslDesehampsia eespltosa
15
23
0.4
Blue avildryelEl runs glaucus
18
27
10.7
California oatgrass/Danthonia Gallfomica
is
27
5.6
Native red fescue l=e,stuca rubra var- rubra
is
1 27
2.4
Meadow barley/Hordeum br-achyantherurrl
10
15
7.7
MIX ASSUMES 150 SEED PER SQUARE FOOT AND SHOULD BE APPLIED AT APPROXIMATELY 37 POUNDS OF PURE LIVE SEED PER ACRE
INT
TREE
)US
I
T MAX.
:45 AP
5" MAX.
DRAINAGE GRATE TRIM
GRATE FRAME _
C- OVERFLOW BYPASS
d
BELOW INLET GRATE DEVICE
/ k .-sn
w..
SEDIMENT AND DEBRIS
FILTERED
WATER
SECTION VIEW
DRAINAGE GRATE
(RECTANGULAR GRATE SHOWN) RETRIEVAL SYSTEM (TYP.)
OVERFLOW BYPASS (TYP.)
BELOW INLET GRATE DEVICE
ISOMETRIC VIEW
NOTES:
1. PROTECTION SHALL BE PROVIDED FOR ALL STORM DRAIN INLETS DOWNSLOPE AND WITHIN 500 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 (BIGD) FOR THE STORMWATER STRUCTURE IT WILL SERVICE.
5. THE BIGD SHALL HAVE A BUILT-IN HIGH -FLOW RELIEF SYSTEM (OVERFLOW BYPASS).
6. THE RETRIEVAL SYSTEM MUST ALLOW REMOVAL OF THE BIGD WITHOUT SPILLING THE COLLECTED MATERIAL.
7. PERFORM MAINTENANCE IN ACCORDANCE WITH STANDARD SPECIFICATION 8-01.3(15).
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 IS NOT TO SCALE (NTS)
STD. PLAN - 216.30
•, PUBLIC WORKS APPR VED:
DEPARTMENT CATCH BASIN INSERT GAZ 9/28/2018
Public Works Administrator DATE
EROSION AND SEDIMENT CONTROL (ESC) STANDARD PLAN NOTES:
THE FOLLOWING IS A LISTING OF GENERAL NOTES THAT SHALL BE INCORPORATED IN THE EROSION AND SEDIMENT CONTROL (ESC) PLAN SET. ALL THE NOTES ON THE
LIST MAY NOT PERTAIN TO EVERY PROJECT. THE APPLICANT OR OWNER, HEREBY REFERRED TO AS APPLICANT, MAY STRIKE OUT IRRELEVANT NOTES IF NOT
APPLICABLE TO THE PROJECT. HOWEVER, THE APPLICANT SHALL NOT RENUMBER NOR EDIT THE REMAINING NOTES. IF ADDITIONAL NOTES ARE NEEDED FOR SPECIFIC
ASPECTS, THEY SHALL BE ADDED AFTER THE ESC STANDARD PLAN NOTES.
1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE -CONSTRUCTION MEETING SHALL BE HELD AMONG THE CITY OF RENTON, HEREBY
REFERRED TO AS THE CITY, THE APPLICANT, AND THE APPLICANT'S CONTRACTOR.
2. THE APPLICANT IS RESPONSIBLE FOR OBTAINING THE WASHINGTON STATE DEPARTMENT OF ECOLOGY (ECOLOGY) CONSTRUCTION STORMWATER GENERAL
PERMIT, IF IT IS REQUIRED FOR THE PROJECT. THE APPLICANT SHALL PROVIDE THE CITY COPIES OF ALL MONITORING REPORTS PROVIDED TO ECOLOGY
ASSOCIATED WITH THE CONSTRUCTION STORMWATER GENERAL PERMIT,
3. THE ESC PLAN SET SHALL INCLUDE AN ESC CONSTRUCTION SEQUENCE DETAILING THE ORDERED STEPS THAT SHALL BE FOLLOWED FROM CONSTRUCTION
COMMENCEMENT TO POST -PROJECT CLEANUP IN ORDER TO FULFILL PROJECT ESC REQUIREMENTS.
4. THE BOUNDARIES OF THE CLEARING LIMITS, SENSITIVE AREAS AND THEIR BUFFERS, AND AREAS OF VEGETATION PRESERVATION AND TREE RETENTION AS
PRESCRIBED ON THE PLAN(S) SHALL BE CLEARLY DELINEATED BY FENCING AND PROTECTED IN THE FIELD IN ACCORDANCE WITH APPENDIX D OF THE CITY OF
RENTON SURFACE WATER DESIGN MANUAL (RENTON SWDM) PRIOR TO THE START OF CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE
BEYOND THE CLEARING LIMITS SHALL BE PERMITTED. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE APPLICANT/ESC SUPERVISOR FOR THE DURATION OF
CONSTRUCTION.
5. STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND MAINTAINED FOR THE DURATION OF THE PROJECT.
ADDITIONAL MEASURES, SUCH AS CONSTRUCTED WHEEL WASH SYSTEMS OR WASH PADS, MAY BE REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPT
CLEAN AND TRACK -OUT TO ROAD RIGHT OF WAY DOES NOT OCCUR FOR THE DURATION OF THE PROJECT. IF SEDIMENT IS TRACKED OFFSITE, PUBLIC ROADS SHALL
BE CLEANED THOROUGHLY AT THE END OF EACH DAY, OR MORE FREQUENTLY DURING WET WEATHER, AS NECESSARY TO PREVENT SEDIMENT FROM ENTERING
WATERS OF THE STATE.
6. WASHOUT FROM CONCRETE TRUCKS SHALL BE PERFORMED OFF -SITE OR IN DESIGNATED CONCRETE WASHOUT AREAS ONLY. DO NOT WASH OUT CONCRETE
TRUCKS ONTO THE GROUND, OR TO STORM DRAINS OR OPEN DITCHES. ON -SITE DUMPING OF EXCESS CONCRETE SHALL ONLY OCCUR IN DESIGNATED CONCRETE
WASHOUT AREAS.
7. ALL REQUIRED ESC BMPS SHALL BE CONSTRUCTED AND IN OPERATION PRIOR TO LAND CLEARING AND/OR CONSTRUCTION TO PREVENT TRANSPORTATION OF
SEDIMENT TO SURFACE WATER, DRAINAGE SYSTEMS AND ADJACENT PROPERTIES. ALL ESC BMPS SHALL BE MAINTAINED IN A SATISFACTORY CONDITION UNTIL
SUCH TIME THAT CLEARING AND/OR CONSTRUCTION IS COMPLETE AND POTENTIAL FOR ON -SITE EROSION HAS PASSED. ALL ESC BMPS SHALL BE REMOVED AFTER
CONSTRUCTION IS COMPLETED AND THE SITE HAS BEEN STABILIZED TO ENSURE POTENTIAL FOR ON -SITE EROSION DOES NOT EXIST. THE IMPLEMENTATION,
MAINTENANCE, REPLACEMENT, ENHANCEMENT, AND REMOVAL OF ESC BMPS SHALL BE THE RESPONSIBILITY OF THE APPLICANT.
8. ANY HAZARDOUS MATERIALS OR LIQUID PRODUCTS THAT HAVE THE POTENTIAL TO POLLUTE RUNOFF SHALL BE DISPOSED OF PROPERLY.
9. THE ESC BMPS DEPICTED ON THIS DRAWING ARE INTENDED TO BE MINIMUM REQUIREMENTS TO MEET ANTICIPATED SITE CONDITIONS. AS CONSTRUCTION
PROGRESSES AND UNEXPECTED OR SEASONAL CONDITIONS DICTATE, THE APPLICANT SHALL ANTICIPATE THAT MORE ESC BMPS WILL BE NECESSARY TO ENSURE
COMPLETE SILTATION CONTROL ON THE PROPOSED SITE. DURING THE COURSE OF CONSTRUCTION, IT SHALL BE THE OBLIGATION AND RESPONSIBILITY OF THE
APPLICANT TO ADDRESS ANY NEW CONDITIONS THAT MAY BE CREATED BY THE ACTIVITIES AND TO PROVIDE ADDITIONAL ESC BMPS, OVER AND ABOVE MINIMUM
REQUIREMENTS, AS MAY BE NEEDED, TO PROTECT ADJACENT PROPERTIES AND WATER QUALITY OF THE RECEIVING DRAINAGE SYSTEM.
10. APPROVAL OF THIS PLAN IS FOR ESC ONLY. IT DOES NOT CONSTITUTE AN APPROVAL OF STORM DRAINAGE DESIGN, SIZE NOR LOCATION OF PIPES, RESTRICTORS,
CHANNELS, OR STORMWATER FACILITIES.
11. ANY DEWATERING SYSTEM NECESSARY FOR THE CONSTRUCTION OF STORMWATER FACILITIES SHALL BE SUBMITTED TO THE CITY FOR REVIEW AND APPROVAL.
12. ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR TWO DAYS DURING THE WET SEASON (OCTOBER 1 ST
THROUGH APRIL 30TH) OR SEVEN DAYS DURING THE DRY SEASON (MAY 1ST THROUGH SEPTEMBER 30TH) SHALL BE IMMEDIATELY STABILIZED WITH THE APPROVED
ESC COVER METHODS (E.G., SEEDING, MULCHING, PLASTIC COVERING, ETC.) IN CONFORMANCE WITH APPENDIX D OF THE RENTON SWDM.
13. WET SEASON ESC REQUIREMENTS APPLY TO ALL CONSTRUCTION SITES BETWEEN OCTOBER 1ST AND APRIL 30TH, UNLESS OTHERWISE APPROVED BY THE CITY.
14. ANY AREA NEEDING ADDITIONAL ESC MEASURES NOT REQUIRING IMMEDIATE ATTENTION SHALL BE ADDRESSED WITHIN SEVEN 7 DAYS.
15. THE ESC BMPS ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED AT A MINIMUM OF ONCE A MONTH OR WITHIN 24 HOURS FOLLOWING A STORM EVENT.
INSPECTION AND MAINTENANCE SHALL OCCUR MORE FREQUENTLY AS REQUIRED BY THE CITY.
16. BEFORE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITY, CATCH BASIN INSERTS PER THE CITY STANDARD PLAN 216.30 SHALL BE PROVIDED FOR ALL STORM
DRAIN INLETS DOWNSLOPE AND WITHIN 500 FEET OF A DISTURBED OR CONSTRUCTION AREA, UNLESS THE RUNOFF THAT ENTERS THE INLET WILL BE CONVEYED
TO A SEDIMENT POND OR TRAP. ALL CATCH BASIN INSERTS SHALL BE PERIODICALLY INSPECTED AND REPLACED AS NECESSARY TO ENSURE FULLY FUNCTIONING
CONDITION.
17. AT NO TIME SHALL SEDIMENT ACCUMULATION EXCEED 2/3 OF THE CAPACITY OF THE CATCH BASIN SUMP. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE
CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT -LADEN WATER INTO THE DOWNSTREAM SYSTEM.
18. ANY PERMANENT STORMWATER FACILITY LOCATION USED AS A TEMPORARY SETTLING BASIN SHALL BE MODIFIED WITH THE NECESSARY ESC BMPS AND SHALL
PROVIDE ADEQUATE STORAGE CAPACITY. IF THE TEMPORARY FACILITY IS TO ULTIMATELY FUNCTION AS AN INFILTRATION SYSTEM IN ITS PERMANENT STATE, THE
TEMPORARY FACILITY SHALL BE ROUGH GRADED SO THAT THE BOTTOM AND SIDES ARE AT LEAST THREE FEET ABOVE THE FINAL GRADE OF THE PERMANENT
FACILITY.
19. AREAS DESIGNATED ON THE PLANS) CONTAINING EXISTING STORMWATER FACILITIES OR ON -SITE BMPS (AMENDED SOILS, BIORETENTION, PERMEABLE PAVEMENT,
ETC.) SHALL BE CLEARLY FENCED AND PROTECTED USING ESC BMPS TO AVOID SEDIMENTATION AND COMPACTION DURING CONSTRUCTION.
20. PRIOR TO THE BEGINNING OF THE WET SEASON (OCTOBER 1ST), ALL DISTURBED AREAS SHALL BE INSPECTED TO IDENTIFY WHICH ONES SHALL BE SODDED OR
SEEDED IN PREPARATION FOR THE WINTER RAINS. DISTURBED AREAS SHALL BE SODDED OR SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE WET SEASON.
AN EXHIBIT OF THOSE AREAS TO BE SODDED OR SEEDED AND THOSE AREAS TO REMAIN UNCOVERED SHALL BE SUBMITTED TO THE CITY FOR REVIEW.
21. PRIOR TO FINAL CONSTRUCTION ACCEPTANCE, THE PROJECT SITE SHALL BE STABILIZED TO PREVENT SEDIMENT -LADEN WATER FROM LEAVING THE PROJECT SITE,
ALL ESC BMPS SHALL BE REMOVED, AND STORMWATER CONVEYANCE SYSTEMS, FACILITIES, AND ON -SITE BMPS SHALL BE RESTORED TO THEIR FULLY
FUNCTIONING CONDITION. ALL DISTURBED AREAS OF THE PROJECT SITE SHALL BE VEGETATED OR OTHERWISE PERMANENTLY STABILIZED. AT A MINIMUM,
DISTURBED AREAS SHALL BE SODDED OR SEEDED AND MULCHED TO ENSURE THAT SUFFICIENT COVER WILL DEVELOP SHORTLY AFTER FINAL APPROVAL. MULCH
WITHOUT SEEDING IS ADEQUATE FOR AREAS TO BE LANDSCAPED BEFORE OCTOBER 1 ST.
22. ROCKERIES ARE CONSIDERED TO BE A METHOD OF BANK STABILIZATION AND EROSION CONTROL. ROCKERIES SHALL NOT BE CONSTRUCTED TO SERVE AS
RETAINING WALLS. ALL ROCKERIES IN CITY ROAD RIGHTS -OF -WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH CITY STANDARDS. ROCKERIES OUTSIDE OF
ROAD RIGHTS -OF -WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE INTERNATIONAL BUILDING CODE.
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
STD. PLAN - 268.00
PUBLIC WORKS EROSION AND SEDIMENT CONTROL PPR
DEPARTMENT STANDARD PLAN NOTES GAZ 9/28/2018 I
Public Works Administrator DATE
:45 X
SECTION B
NOTES:
1. CONDITIONS OF USE
1.1. WHERE THERE IS CONCENTRATED RUNOFF FROM DISTURBED AREAS TO AND FROM SEDIMENT PONDS OR TRAPS.
1.2. TO CONVEY RUNOFF INTERCEPTED FROM UNDISTURBED AREAS AROUND THE SITE TO A NON -EROSIVE DISCHARGE POINT.
2. MAINTENANCE STANDARDS
2.1. ANY SEDIMENT DEPOSITION OF MORE THAN 6 INCHES SHALL BE REMOVED SO THAT THE CHANNEL IS RESTORED TO ITS ORIGINAL DESIGN CAPACITY.
2.2. THE CHECK DAMS SHALL BE EXAMINED FOR SIGNS OF SCOURING AND EROSION OF THE BED AND BANKS. IF SCOURING AND EROSION HAS OCCURRED,
AFFECTED AREAS SHALL BE PROTECTED BY RIPRAP OR AN EROSION CONTROL BLANKET OR NET.
UNLESS OTHERWISE NOTED, DRAWING 15 NOT TO SCALE (NTS)
STD. PLAN - 217.40
PR9/2. PUBLIC WORKS PPR D:
DEPARTMENT DITCH CHECK DAMS GqZ
8/2018 11
Public Works Administrator DATE
TREE PROTECTION MEASURES DURING CONSTRUCTION
PROTECTION MEASURES IN THIS SECTION SHALL APPLY FOR ALL TRESS THAT ARE TO SE
RETAINED ON SITE AND OFF SITE. OFF SITE TREES CONTAINING DRIP LINES THAT ENCROACH D"
IMPERVIOUS SURFACES PROHIBITED WITHIN THE DRIP LINE.• THE APPLICANT MAY NOT INSTALL
ONTO THE SITE UNDER CONSTRUCTION SHALL BE CONSIDERED PROTECTED TREES UNLESS IT IS
IMPERVIOUS SURFACE MATERIAL WITHIN THE AREA DEFINED BY THE DRIP LINE OF ANY TREE
DETERMINED THE ABUTTING PROPERTY OWNER IS IN COMPLIANCE WITH SUBSECTION C OF THIS
TO BE RETAINED, UNLESS 07HERWSE APPROVED BY THE CITY. (ORD. 5958, 12-9-20199)
SECTION, ALLOWED TREE REMOVAL AC77WTIES. ALL OF THE FOLLOWING TREE PROTECTION
MEASURES SHALL APPL Y" E.
RESTRICTIONS ON GRADING IMTHIN THE DRIP LINES OF RETAINED TREES' THE GRADE LEVEL
AROUND ANY TREE TO BE RETAINED MA Y NOT BE LOWERED WITHIN THE GREA TER OF THE
A. CONSTRUCTION STORAGE PROHIBITED: THE APPLICANT MAY NOT FILL, EXCAVATE, STACK OR
FOLLOWING AREAS. (l) THE AREA DEFINED BY THE DRIP LINE OF THE TREE, OR (//) AN
STORE ANY EQUIPMENT, DISPOSE OF ANY MATERIALS, SUPPLIES OR FLUIDS, OPERATE ANY
AREA AROUND THE TREE EQUAL TO ONE AND ONE HALF FEET (1-1/2) IN DIAMETER FOR
EQUIPMENT, INSTALL IMPERVIOUS SURFACES, OR COMPACT THE EARTH IN ANY WAY WITHIN
EACH ONE INCH (1 � OF TREE CALIPER. A LARGER TREE PROTECTION ZONE BASED ON TREE
THE AREA DEFINED BY THE DRIP LINE OF ANY TREE TO BE RETAINED.
SIZE, SPECIES, SOIL, OR OTHER CONDITIONS MAY BE REQUIRED. (ORD. 5676, 12-3--20121)
B. FENCED PROTECTION AREA REQUIRED.- PRIOR TO DEVELOPMENT ACTIVITIES, THE APPLICANT F"
MULCH LAYER REQUIRED: ALL AREAS WITHIN THE REQUIRED FENCING SHALL BE COVERED
SHALL ERECT AND MAINTAIN SIX-FOOT (6) HIGH CHAIN LINK TEMPORARY CONSTRUCTION
COMPLETEL Y AND EVENL Y WITH A MINIMUM OF THREE INCHES (J) OF BARK MULCH PRIOR
FENCING AROUND THE DRIP LINES OF ALL RETAINED TREES OR AT A DISTANCE
TO INSTALLATION OF THE PROTECTVE FENCING. EXCEPTIONS MAY BE APPROVED IF THE
SURROUNDING THE TREE EQUAL TO ONE AND ONE QUARTER FEET (1-1/4) FOR EVERY ONE
MULCH WLL ADVERSEL Y AFFECT PROTECTED GROUND COVER PLANTS. (ORD. 5676,
INCH (1) OF TRUNK CALIPER, WHICHEVER IS GREATER, OR AL ON THE PER/METER OF A TREE
12-3--2012)
PROTECTION TRACT. PLACARDS SHALL BE PLACED ON FENCING EVERY FIFTY FEET
(50)INDICATING THE WORDS, NO TRESPASSING - PROTECTED TREES, OR ON EACH SIDE OFG"
MONITORING REQUIRED DURING CONSTRUC17ON. THE APPLICANT SHALL RETAIN A CER77FIED
THE FENCING IF LESS THAN FIFTY FEET (50) SITE ACCESS TO INDIWDUALL Y PROTECTED
ARBOR/ST OR LICENSED LANDSCAPE ARCHITECT TO ENSURE TREES ARE PROTECTED FROM
TREES OR GROUPS OF 7REES SHALL BE FENCED AND SIGNED. INDIVIDUAL TREES SHALL BE
DEVELOPMENT AC77W77ES AND/OR TO PRUNE BRANCHES AND ROOTS, FERALIZE, AND WATER
FENCED ON FOUR (4) SIDES. IN ADDITION, THE APPLICANT SHALL PROVIDE SUPERVISION
AS APPROPRIATE FOR ANY TREES AND GROUND COVER THAT ARE TO BE RETAINED.
WHENEVER EQUIPMENT OR TRUCKS ARE MOVING NEAR TREES.
H"
AL TERNA 77VE PR07EC770114• AL 7ERNA 77VE SAFEGUARDS MA Y BE USED IF DETERMINED TO
C" PROTECTION FROM GRADE CHANGES. IF THE GRADE LEVEL ADJOINING TO A TREE TO BE
PROVIDE EQUAL OR GREATER TREE PROTECTION.
RETAINED IS TO BE RAISED THE APPLICANT SHALL CONSTRUCT A DRY ROCK WALL OR ROCK
WELL AROUND THE TREE. THE DIAMETER OF THIS WALL OR WELL MUST BE EQUAL TO THE
TREES DRIP LINE.
TESC SEQUENCE
1. FLAG CLEARING LIMITS.
2. INSTALL SIL T AND TREE PROTECTION FENCE.
J INSTALL CATCH BASIN INSERT.
4. INSTALL CONSTRUCTION ENTRANCE
5. CLEAR THE SITE AND ROUGH GRADE
6. STAB/L/ZE W/TH HYDROSEED AND MUL CH AS APPROPR/A TE
7. CONSTRUCT THE SOUTH VAUL T AND OUTLET PIPES.
PLUGGING THE OUTLET PIPE UN77L 7NE SIZE /S STAB/L/ZED.
ygIDEKO�
�,�•�•pF • 11'AS,y�y'9�
04
0.
off•, ,�,,
A 41846 0 •�
O/ST�6'
�SS�ONAL ENS\
6
8. CONSTRUCT THE INTERCEPTOR SWALES AND CHECK DAMS
DISCHARGING INTO THE SOUTH VAUL T.
9. CONSTRUCT THE NORTH VAUL T AND OUTLET PIPES.
PLUGGING THE OUTLET P/PE UNTIL 1NE SIZE IS STABILIZED.
10. CONSTRUCT THE INTERCEPTOR SWALES AND CHECK DAMS
DISCHARGING INTO THE NOR7H VAUL T.
II CONSTRUCT SEWER AND WATER (PER APPROVED WATER
DISTRICT 90 PLANS) AND PROTECT THESE FACIL117ES FROM
DAMAGE DURING ON -GOING CONSTRUC17ON
PROJECT NO. 20134
CIVIL ENGINEERING
LANDSCAPE ARCHITECTURE
PLANNING
DESIGN SURVEYING
7 2100 NE 7 95th St, Suite 300 Bothell, Washington 9807 1 425.885.7877
1 CITY COMMENTS SES 10/12/2 SHM SURVEYED: ROW SCALE,. VERTICAL: NAVD 1988
2 REVISE WALL SES 3/7/23 SHM HORIZONTAL NAD 1983/1991
DESIGNED: SHY
3 CITY COMMENTS SES 1 /25/23 SHM
4 CITY COMMENTS SES 6 5 23 SHM DRAWN: SES
ONE INCH DATU M
CHECKED: SHY AT FULL SCALE
NO. REVISION BY DATE APPR IF NOT ONE INCH
APPROVED: SHY
SCALE ACCORDINGLY
+ CITY OF
RENTON
Planning/Building/Public Works Dept.
:45 AN
12. CONSTUCT THE STORM SYSTEM UPSTREAM OF THE VAUL TS
IJ CLEANOUT VAULTS AND REMOVE TEMPORARY PLUG
14. CONSTRUCT UNDERGROUND UTTLITIES
15. CONTRUCT CURB, GUTTER AND SIDEWALK
16. CONSTRUCT ROADS, EXCEPT FOR T7/E FINAL LIFT OF
ASPHAL T
17. REMOVE TEMPORARY FACILITTES
R-423007
IN COMPLIANCE WITH CITY OF RENTON STANDARDS
EDEVELOPMENT ENGINEERING
Wanders 06/07/2023
DATE:
MARCH 2O22
TEMPORARY ,SEDIMENT AND PAGE: -
EROSION CONTROL DETAILS DRAWING N0:
cz.31
SHEET: OF:
7 40
ti
O
O
04
V