HomeMy WebLinkAboutTED4001822.1CITY Or RENTON
STORM WATER DRAINAGE NOTES 11/30/88
1.
BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY
11.
Structures rlhall not be permitted within 10 feet of
OCCURS, A PRE -CONSTRUCTION MEETING MUST BE HELD WITH
the spring lire of any storm drainage pipe, or 15 feet
THE CiTY OF RENTON DEPARTMENT OF PUBLIC WORKS, DESIGN
from the top of any channel bank.
ENGINEER.
12.
All catch basin grates shall be depressed 0.10 feet
2.
All construction shall be in accordance with the 111988
below pavement level.
Standard Specifications for Road, 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 read crossings thru existing public right -of -
City of Renton Department of Public Works.
way will not be allowed urnless specifically approved
by City of Renton Dept. of Public Works, Design
Engineer.
3.
The storm drainage system shall be constructed
according to the app. oved glans which are on file in
the Department of Public wurks. Any deviation from
14.
Rock for erosion protection of roadside ditches, where
the approved plans will require written approval from
required, shall 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
Engineer or Storm Water Utility .
specifications: 411-811/40%-70% passing; 211-411 rock/30%-
40% passing; and -211 rock/10%-20% passing.
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 shall be
connected to the storm drainage system, unless
approved by the Dept. of Public Works, Design Engineer
5.
Datum shall be U.S.u.a. unless otherwise approved by
or Storsl 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
completion.
6.
All sedimentation/erosion facilities must be in
operation prior to clearing and building construction,
16.
Issuar.ce 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
site erosion has passed.
with storm surface water disposition. ' Further, the
City of Renton does not accept any obligation for the
proper functioning and maintenance of the system
7.
Alt retention/detention facilities must be installed
provided during construction.
and in operation prior to or in conjunction with all
construction activity unless otherwise approved by the
Department of Public Works, Storm Water Utility.
;".
The Contractor shall be responsible for providing
adequate safeguard, safety devices, protective
equilxmnt, fteggers, and nny ot-_r needed actions to
6.
Grass seed may be applied by hydroseediroro The grass
protect the life health, aril 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 a 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
Storm Water Utility.
traffic flow shall require an approved traffic control
plan by the Traffic Engineering Div. of the Dept. of
Public Works. All sections of the W.S.D.O.T. Standard
9.
All pipe and appurtenances shop be laid on a
Specifications 1-07-23, Traffic Control, shall apply.
properly prepared foundation in accordance with
Section 7-02.3(1) of the current State of Washington
18.
Special drainage measures will be required if the
Standard Specification for Roe-i and Bridge
project location is within the aquifer 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 o
uniformly dense unyielding base. All pipe bedding
shall be APWA Class 'CO with the exception of PVC
pipe. All trench backfill shall be compacted to
minimum 95% fcr pavement and structural fill and 90%
otherwise per ASTM D-1557-70. Pea gravel bedding
shalt be 6" over and under P.V.C. pipe.
10.
Galvanized steel pipe and, aluminized steel pipe for
all drainage facilities shall have asphalt treatment
Ni or better inside and outside.'
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a_ ,n Record Drawine /p� I _
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,t t The water system indicated on this drawing was verified by field survey as Z (J�i F-' Q+ Q64 TL e
1 �' ���� ��^� �. ,� Tu ��a�� wo__ Qom, L-IQF-
i< indicated in the following notes.
1. Water system surface features (valves,hydrarits, vaults, meters, etc.)
. are in the approximate positions indicated as ve 'fied by field survey.
2. Pipe lengths were verified by field measure nt between surface C-)
gciK features where possible.
�! 3. Record information changes indicated with t ed text.
LO,.J G�.�rZE �IIG-• �t2.E��2� SOD ,�M
The sanitary sewer system indicated on this dratvinst was from contractor JCL J .� ` :a y� i C G' _ P, LPL.. C-
2 �
supplied information as indicated in the follow' notes. N M G19�%�
aAWASH� 0
4. The tie in to the sewer main was from contractor supplied
information. b ti� G2 0
5. There is no surface evidence of the actual location of the sanitary 12620 y
sewer connection (if ssiple sewer. �
k•,' "+� l (.' .��'�`" �», * .o�d��. 9FG�STEPF,� ���J
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N SCANNED MAR 2 8 603 • •
DRAWING NO