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NOTES
1. BEFORE ANY CONSTRUC7ON OR DEVELOPMENT ACTIVITY OCCURS, A
PRE -CONSTRUCTION MEE77NG MUST BE HELD WITH THE CITY OF RENTON,
PUBLIC WORKS DESIGN ENGINEER.
2. ALL LIMITS OF CLEARING AND AREAS OF VEGETA77ON PRESERVATION AS
PRESCRIBED ON THE PLAN(S) SHALL BE CLEARLY FLAGGED /N THE FIELD
AND OBSERVED DURING CONSTRUCTION.
J. ALL REQUIRED SEDIMENTA770N/EROSION CONTROL FACILITIES MUST BE
CONSTRUCTED AND IN OPERATION PRIOR TO LAND CLEARING AND/OR
CONS TRUCT7ON TO ENSURE THAT SEDIMENT LADEN WATER DOES NOT ENTER
THE NATURAL DRAINAGE SYSTEM. ALL EROSION AND SEDIMENT FACIL177ES
SHALL BE MAINTAINED /N A SATISFACTORY CONDITION UN77L SUCH TIME THAT
CLEARING AND/OR CONSTRUCTION /S COMPLETE AND POTENTIAL FOR
ON -SITE EROSION HAS PASSED. 7HE IMPLEMENTATION, MAINTENANCE,
REPLACEMENT AND ADD177ONS TO EROSION/SEDIMENTA7ION CONTROL
SYSTEMS SHALL BE THE RESPONSIBILITY OF THE PERMITEE
4. THE EROSION AND SEDIMENTATION CONTROL SYSTEMS DEPICTED ON THIS
DRAWING ARE INTENDED TO BE MINIMUM REQUIREMENTS TO MEET
AN77CIPATED SI7E CONDIRONS. AS CONSTRUCTION PROGRESSES AND
UNEXPECTED OR SEASONAL CONDIT70NS DICTATE, THE PERM/TEE SHALL
ANTICIPATE THAT MORE EROSION AND SEDIMENTATION CONTROL FACIL177ES
WILL BE NECESSARY TO ENSURE COMPLETE SILTA77ON CONTROL ON THE
PROPOSED SITE DURING THE COURSE OF CONSTRUC7ON, IT SHALL BE THE
OBLIGA77ON AND RESPONSIBILITY OF THE PERMITEE TO ADDRESS ANY NEW
CONDITIONS THAT MAY BE CREATED BY THE ACT70TIES AND TO PROVIDE
ADDIT70NAL FACILITIES, OVER AND ABOVE MINIMUM REQUIREMENTS, AS MAY
BE NEEDED, TO PROTECT ADJACENT PROPER77ES AND WATER QUALITY OF
THE RECEIVING DRAINAGE SYSTEM.
5. APPROVAL OF THIS PLAN /S FOR EROSIONISEDIMENTAT70N CONTROL
ONLY. IT DOES NOT CONSTITUTE AN APPROVAL OF STORM DRAINAGE DESIGN,
SIZE NOR LOCA77ON OF PIPES, RESTRICTORS, CHANNELS, OR RETENTION
FACILITIES.
6. DURING THE TIME PERIOD OF OCTOBER 1ST THROUGH APRIL 307H, ALL
PROJECT DISTURBED SOIL AREAS GREATER THAN 5, 000 SQUARE FEET, 7HA T
ARE TO BE LEFT UN -WORKED FOR MORE THAN 12 HOURS, SHALL BE
COVERED BY MULCH, SODDING OR PLASTIC COVERING.
Z IN ANY AREA WHICH HAS BEEN STRIPPED OF VEGFTA77ON AND WHERE
NO FURTHER WORK IS ANTICIPATED FOR A PERIOD 30 DAYS OR MORE, ALL
DISTURBED AREAS MUST BE IMMEDIATELY STABILIZED WITH MULCHING,
GRASS PLAN77NG OR OTHER APPROVED EROSION CONTROL TREATMENT
APPLICABLE TO THE 77ME OF YEAR. GRASS SEEDING ALONE WILL BE
ACCEPTABLE ONLY DURING THE MONTHS OF APRIL THROUGH SEPTEMBER,
INCLUSIVE. SEEDING MAY PROCEED, HOWEVER, WHENEVER IT IS /N THE
INTEREST OF 7HE PERMITEE, BUT MUST BE AUGMENTED WITH MULCHING,
NET77NG OR OTHER TREATMENT APPROVED BY THE CITY OF REN TON,
OUTSIDE THE SPECIFIED TIME PERIOD.
NW 1/4, SW 1/4, SEC 17, TWP 23N, RGE 5E, W.M.
SCALE: 1" = 20'
0 10 20 40
PROTECTION PER REMOVE AND REPLACE / Ex. Lx. I I s Mcx
DETAILL, 7741S SHEET � � EX. CONCRE7E CURB AND LsII�� I (Typ)WALK AS N€CESSARY TO:: Ex. ICHT SLV ;
ACCOMMODATE NEW V) AND POLE
EX. ORI VEWA Y � (TO REMAI )
WA TER LINES
CURB CUT I Ex
E TR35
X EX UDED CUR B
(7O REtMA/N) I I EX. V W , ' TO BE REPLACED �I — I — WQ— II6
CAUTION
LOCATION OF EXISTING U77LI77ES SHOWN IS
APPROXIMA TE AND MA Y NOT BE ACCURA 7E OR ALL
INCLUSIVE. IT IS 7HE CON 7RACTOR 'S
RESPONSIBILITY TO FIELD VERIFY LOCH 770N OF
U77LI77ES PRIOR TO PROCEEDING WY7H
CONS7RUC770N. YOU MUST CALL 1-800-424-5555
NOT LESS THAN 2 FULL BUSINESS DAYS BEFORE
BEGINNING EXCA VA TION WHERE ANY UNDERGROUND
U77LI77ES MAY BE LOCA7ED. FAILURE TO DO SO
COULD MEAN BEARING SUBSTANTIAL REPAIR COSTS
Checked for Compliance to City Standards
SOLID WALLS
FILTER MEDIA
CATCH BASIN
STANDARD STRENGTH
FILTER FABRIC
GRA TE
D
CATCH BASIN -
D '
TRIAD
A S S O C I A T E S
12112 115th Ave. NE
Kirkland, WA 98034-6923
425.821.8448
425.821.3481 fax
800.488.0756 toll free
www.triadassoc.com
E ° N
A N v
zN
RICHARD A. TOMK/NS, PE
PROJECT MANAGER
LONNIE E. CARLSON, PLS
PROJECT SURVEYOR
RICHARD A. TOMKINS, PE
PROJECT ENGINEER
PROJECT LANDSCAPE ARCHITECT
FIRST SUBMITTAL DATE: 02119109
GRATE SCALE: HORN.: 1"--20' VERT.:N/A
POROUS BOTTOM
NOTE: THIS DETAIL IS ONLY SCHEMATIC. ANY INSERT
IS ALLOWED THAT HAS A MIN, 0.5 C.F. OF STORAGE,
THE MEANS TO DEWATER THE STORED SEDIMENT, AN
OVERFLOW, AND CAN BE EASILY MAINTAINED.
CATCH BASIN
INSERT
MAINTENANCE STANDARDS.,
1. ANY ACCUMULATED SEDIMENT ON OR AROUND THE FILTER FABRIC PR07ECTION SHALL BE REMOVED
IMMEDIATELY. SEDIMENT SHALL NOT BE REMOVED WITH WATER, AND ALL SEDIMENT MUST BE
DISPOSED OF AS FILL ON -SITE OR HAULED OFF -SITE.
2. 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 A T LEAST MONTHL Y.
J. REGULAR MAINTENANCE 1S CRITICAL FOR BOTH FORMS OF CATCH BASIN PROTECTION. UNLIKE
MANY FORMS OF PROTECTION THAT FAIL GRADUALLY, CATCH BASIN PROTECTION WILL FAIL SUDDENLY
AND COMPLETELY IF NOT MAINTAINED PROPERLY.
INTERIM CATCH BASIN GRATE PRO TEC TION
NOT TO SCALE
STAMP NOT VALID
UNLESS SIGNED AND DATED
JOB NO. 08— 129
SHEET N0. C2 OF m
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