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ST. BARBARA CATHOLIC SCHOOL TASK 2 75-24272-01 <br />DIOCESE OF ORANGE SEPTEMBER 12TH, 2024 <br />SANTA ANA, CA BID & PERMIT SET <br /> <br />STORM DRAINAGE 334100 - 6 <br />a. Material: ASTM A 536, Grade 60-40-18 ductile iron or ASTM A 48, Class 35 <br />gray iron, unless otherwise indicated. <br />2.6 2.7 CONCRETE <br />A. General: Cast-in-place concrete according to ACI 318/318R, ACI 350R, and the following: <br />1. Cement: ASTM C 150, Type II. <br />2. Fine Aggregate: ASTM C 33, sand. <br />3. Coarse Aggregate: ASTM C 33, crushed gravel. <br />4. Water: Potable. <br />B. Ballast and Pipe Supports: Portland cement design mix, 3200 psiminimum, with 0.5 maximum <br />water-cement ratio. <br />1. Reinforcement Fabric: ASTM A 185, steel, welded wire fabric, plain. <br />2. Reinforcement Bars: ASTM A 615/A 615M, Grade 60, deformed steel. <br />2.7 2.9 CATCH BASINS <br />A. Standard Precast Concrete Catch Basins: ASTM C 913, precast, reinforced concrete, of depth <br />indicated, with provision for sealant joints. Precast units shall meet H-20 traffic loading <br />condtions. <br />1. Base Section: 6-inchminimum thickness for floor slab and 4-inchminimum thickness for <br />walls and base riser section, and having separate base slab or base section with integral <br />floor. <br />2. Top Section: Eccentric-cone type unless flat-slab-top type is indicated. <br />3. Joint Sealant: ASTM C 990, bitumen or butyl rubber. <br />B. Frames and Grates: ASTM A 536, Grade 60-40-18, ductile iron designed for A-16 (heavy <br />traffic) structural loading unless otherwise indicated. Include 24-inchID by 7-to 9-inch riser <br />with 4-inch minimum width flange, and 26-inch- diameter flat grate with small square or short- <br />slotted drainage openings, unless otherwise indicated. <br />1. Grate Free Area: Approximately 50 percent, unless otherwise indicated. <br />2. <br />PART 3 - C. Triton Catch Basin Insert filters by Contech Stormwater Solutions Inc. <br />1. <br />2. <br />3. CLEANOUTS <br />B. Cleanout Covers: Alhambra Foundry Company, Inc. Model No. A-1240 or A1242, heavy duty <br />lamphole frame and cover, or approved equal.