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NOTE:
1. PROVIDE A FLEXIBLE JOINT AT 18" MAX. FROM
WALL FOR ALL ENTERING AND EXITING PIPES.
2. ALL NON -ALUMINUM PARTS SHALL BE GALVANIZED
AND COATED WITH ASPHALT TREATMENT 1 OR BETTER.
ALUMINIZED STEEL SHALL NOT BE ALLOWED.
COMPLETE CORROSION PROTECTION MUST BE ASSURED.
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OFFSET SO THAT RESTRICTOR DEVICE IS VISIBLE
AT EDGE OF OPENING AND DIRECTLY OVER LADDER.
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REVISION DATE BY COMMENTS
GENERAL NOTES
1. ALL WORK AND MATERIALS FURNISHED UNDER THIS CONTRACT SHALL BE
IN ACCORDANCE WITH APWA STANDARD SPECIFICATIONS AND THE CITY
OF RENTON STANDARDS.
2. C.M.P (CORRUGATED METAL PIPE) TO BE MINIMUM 16 GA., 2-2/3" X 1/2"
CORRUGATED GALVANIZED STEEL OR ALUMINUM PAINTED WITH ZINC CHRO-
MATE PAINT PER SECTION 7-02.3(1)82 OF WASHINGTON STATE STANDARD
SPECIFICATIONS, LATEST EDITION. SPECIFICATIONS FOR ALL OTHER
PIPING, CATCH BASINS AND INSTALLATION AND INSPECTION SHALL MEET
THE REQUIREMENTS OF THE CITY OF RENTON.
3. MANHOLE STEPS, WHERE REQUIRED, SHALL CONFORM WITH APWA SECT. 63.
4. ALL STEEL PARTS AND SURFACES MUST BE GALVANIZED AND COATED WITH
ASPHALT TREATMENT 1 OR BETTER.
5. ALL BUILDING DOWNSPOUTS SHALL BE CONNECTED TO STORM DRAINAGE
FACILITIES WITH TIGHTLINE.
6. BEDDING TO BE APWA CLASS "F" (5/8" MINUS CRUSHED ROCK). BACKFILL
IN THE STREET AND PAVED AREAS TO BE APWA CLASS B. COMPACTION TO
BE IN ACCORDANCE WITH APWA STANDARDS FOR MECHANICAL COMPACTION
OF PIPE BACKFILL.
7. THE CONTROL STRUCTURE TO BE INSPECTED PRIOR TO INSTALLATION.
8. AN APPROVED COPY OF THESE PLANS MUST BE ON THE CONSTRUCTION
SITE WHENEVER CONSTRUCTION IS IN PROGRESS.
LEGEND
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WAT"E L I W E
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TITLE
H R HARTING. JR./ THE SWAN SON
CONSULTING ENGINEER LAW OFFICE
7420 S.116TH ST SEATTLE, WN. 98178 772-4898 4512 TALBOT S. , RENTON
DRAWN CHECKED DATE PRUJEL
RH 7/20/87 57- 04 i C 1 of 1
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