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7-17-CP KLL Irl V:C'.1 OE AVE. b- n-tA LtL
LEGEND
FF = 286 FINISHED FLOOR
29� SPOT ELEVATION
186—� EXISTING GRADE
190-- FINISHED GRADE
TYPE I
TYPE Ii 54"(+) CB (AS NOTED)
12" CMP STORM LiNE W/SIZE 8k TYPE
.-- EXISTING STORM LINE/CATCHBASIN
® YARD DRAIN
DRAINAGE FLOW IN PARKING LOT
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SAWCUT J F3EMOVE EX. i'AVEMUT. '
PATCH PAVEMEnT PE.5 CITY OF
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v. HIGHWAY (SR 169)
STORM DRAINAGE NOTES:
G
1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY 11. Structures shell riot be permitted within 10 feet of
OCCURS, A PRE -CONSTRUCTION MEETING MUST BE HELD WITH the spring line of any storm drainage pipe, or 15 feet f
THE CITY OF RENTON DEPARTMENT OF PUBLIC WORKS, DESIGN from the top of any channel bank.
ENGINEER.
12. All catch basin grates sholl be depressed 0.10 feet
ti
2. All construction shell be in accordance with the "19W below pavement level.
Standard Specifications for Rood, Bridge and Municipal
Construction" prepared by W.S.D.O.T., and the American
Public Works Association (APWA), as amended by the 13. Open cut rood crossings thru existing public right -of -
City of Renton Deportment of Public Works. way will not be allowed unless specifically approved
by City of Renton Dept. of Public Works, Design
Engineer.
3. The storm drainage system shell be constructed
according to the approved plans which are on file in
the Department of Public Works. Any deviation from 14. Rock for erosion protection of roadside ditches, where
the approved plans will require written approval from required, shell be of sound quarry rock placed to a
the City of Renton Department of Public Works, Design depth of 1 foot and must meet the following W
Engineer or Storm Water Utility specifications: 411-811/40X-70% passing; 2"-4" .rock/307.-
40X passing; and -2" rock/10%-20X possirg.
4. A copy of these approved plans must be on the job site
whenever construction is in progress. 15. All building downspouts and footing drains shod be
connected to the storm drainage system, unless
approved by the Dept. of Public Works, Design Engineer
5. Datum shall be U.S.G.S, unless otherwise approved by or Storm Water Utility. An accurately dimensioned
City of Renton Department of Public Works. Reference Certified as built drawing of this drainage system ^/
benchmark and elevation are noted on the plans. will be submitted to the City of Renton upon jnirl
completion.
6. All sedimentation/erosion facilities must be in
operation prior to clearing and building construction, 16. Issuance of the Building or Construction Permit by the �.
and they must be satisfactorily maintained until City of Renton does not relieve the owner of the construction is completed and the potential for on- continuing legal obligation and/or liability connected Z
site erosion has passed. with storm surface water disposition. Further, the
City of Renton does not accept any obligation for the i
proper functioning and maintenance of the system
7. All retention/detention facilities must be installed provided during construction. !v��
and in operation prior to or in conjunction with all
construction activity unless otherwise approved by the
Deportment of Public Works, Storm Water Utility. 17. The Contractor shall be responsible for providing
adequate safeguard, safety devices, protective
equipment, f(oggers, and any other needed actions to
8. Grass seed may be applied by hydroseeding. The grass protect the life health, and safety of the public, and
seed mixture, other than City of Renton approved to protect property in connection with the performance
standard mixes, shall be submitted by o Landscape of work covered by the contract. Any work within the
Architect and approved by the Dept. of Public Works, traveled right-of-way that may interrupt normal r ~
Storm Water Utility. traffic flow shall require on approved traffic control Qsm
plan by the Traffic Engineering Div. olf the Dept. of
Public Works. All sections of the W-S.C.O.T. Standard
9. All pipe and appurtenances shall be laid on o Specifications 1-07-23, Traffic Control, shall apply.
properly prepared foundation in accordance with
Section 7-02.3 0) of the current State of Washington 18. Special drainage measures will be required If the
Standard Specification for Road and Bridge project location is within the oquifer protection
Construction. This shall include necessary leveling area.
of the trench bottom or the top of the foundation
material as well as placement and compaction of
required bedding material to uniform grade so that the
entire length of the pipe will be supported on a
uniformly dense unyielding base. All pipe bedding
shot( be APWA Class 'C', with the exception of PVC
pipe. Al( trench bockfiIL shop be compacted to
minimum 95X for pavement and structural fill and 90%
otherwise per ASTM D-1557-70. Pee gravel bedding
shall be 6" over and under P.V.C. pipe.
10. Galvanized steel pipe and aluminized steel pipe for
all drainage facilities shot( have asphalt treatment 2�
01 or better inside and outside. t j.
ASr
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Flow Distribution
"D. Bathe
Grit/Sludge Retainer Baffle
Clarifier Type Rel. Page
Gal/V.F.
'A'
"B'
'C
I 'D'
No. 466-S
18
138 Gal
19-
21'
1Z'
I 12'
BAFFLED OIL/WATER SEPARATOR
(AVAILABLE THUR PIPE, INC.)
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PROJECT NO
88-96
DRAWN BY
KLL
ISSUE DATE
5-12-89
LATEST REV
b-L5-61�
4o - / 8r;
f�DAr%-IFIC ��;NGINEERING COMPANY
CIVIL ENGINEEAINCs" ANQ,,,_
PLANNING CONSULTANTS
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