1052.1DESCRIPTION—This work is construction of an aluminum or steel drain facility to dispose of bridge
deck drainage by free drop through curb barrier.
1052.2MATERIAL—
(a)Aluminum. ASTM B308/B308M, Alloy 6061-T6. Certify as specified in Section 106.03(b)3.
(b)Structural Steel. Section 1105.02(a)2
(c)Zinc Chromate Primer. Federal Specification TT-P-645. Certify as specified in Section 106.03(b)3.
(d)Galvanizing. Section 1105.02(s)
1052.3CONSTRUCTION —Construct in accordance with Standard Drawing BC-751M, as indicated, and
as directed.
(a)General. Fabricate the drain from either C8 by 4.25 aluminum channels, or C8 by 11.5 steel channels,
welded together with full penetration welds to form a rectangular section. Alternatively, fabricate a rectangular section, 8 inches by 4 1/2 inches out of 3/16-inch steel plates.
(b)Aluminum Drain. Coat all surfaces of the drain to be in contact with concrete with two coats of
asphalt paint or zinc chromate primer.
(c)Steel Drain. Galvanize the entire drain after welding according to ASTM A123.
1052.4MEASUREMENT AND PAYMENT—Incidental to concrete bridge barrier.
Referenced in this section
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Source: Publication 408 Highway Construction Specifications, 2026 Edition. Pages 1152–0 of 1,522. View official source ↗