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B <br /> Co z <br /> Z <br /> A I <br /> I A o W <br /> I `� <br /> 1 W � <br /> 1 / L N <br /> B <br /> PLAN VIEW <br /> 20" MACHINED <br /> SEATING <br /> 1/4" H/4" SURFACES <br /> 1/8" <br /> / T <br /> 3/8" 2" <br /> l <br /> 18 1/4" 8 2" <br /> NOTES: 22 1/47 <br /> SECTION A—A <br /> 1. FRAME & GRATE SHALL BE MANUFACTURED OF CAST IRON CONFORMING <br /> TO ASTM A-48-30. <br /> 2. FRAME AND GRATE SHALL BE HS20-44 RATED. <br /> 3. FRAME SHALL WEIGH APPROX: 65 LBS. <br /> 4. GRATE SHALL WEIGH APPROX. 78 LBS. <br /> 5. GRATE SHALL BE CHAINED TO FRAME WITH 18" OF 1/4" HEAT-TREATED CHAIN <br /> 6. MAY BE USED IN RIGHT OF WAY WHERE APPROVED BY GOVERNING AGENCY. <br /> 7. COUNTRY OF ORIGIN AND MANUFACTURER SHALL BE CAST INTO FRAME AND GRATE. <br /> ® 1/4" X 6" U BOLT CAST INTO GRATE AND FRAME. <br /> REVISION DATE COUNTYWIDE IMPROVEMENT STANDARDS APPROVED eY <br /> COUNTY OF SAN JOAQUIN <br /> 18" STORM DRAIN INLET AN JOA I OUNTY DA E <br /> DIRECTOR F PUBLIC WORKS <br /> FRAME & GRATE IMPROVEMENT CW—M7 <br /> STANDARD NO. <br />