815815.19 Anchor Bolts Other Than High-Strength

WY · 2021 Standard SpecificationsBook pages 0–0View official source ↗

Provide and use anchor bolts in accordance with ASTM A 307 [ASTM F 568]; supply nuts in accordance with ASTM A 563 and of a matching grade and finish in accordance with Table 815.2.1-1, Nut Grade and Finish Requirements. Ensure that galvanized bolts are hot-dipped.

815.20Frames, Grates, and Covers

1 Ensure frames, gates, and covers are designed for an AASHTO HL93 loading.

For fabricated grates, use structural steel in accordance with Subsection 815.1, Structural Steel. The department will allow the ⅝-inch [16 mm] diameter cross bars to be fillet welded, resistance welded, or electroforged to the bearing bars.

739

Signs and Traffic Devices

816.1Sheet Aluminum for Sign Panels

1 For sign panels, ensure the provision of sheet aluminum made as follows:

1.Using 5052-H38 or 6061-T6 alloy in accordance with ASTM B 209 [ASTM B 209M];

2.Kept uncontaminated after cleaning and etching and before the application of

retroreflective sheeting;

3.Surface-treated with a chemical conversion method;

4.Anodized or chemically-treated by an approved process; and

5.Using chemical immersion baths of adequate capacity for total immersion,

maintained within limits of operating-solution strength by reliable control methods.

816.2Aluminum Alloy Channels and Tubing

1 Ensure the provision and use of aluminum alloy channels and tubing in accordance with

ASTM B 221 [ASTM B 221M] for alloy 6061-T6.

816.3Retroreflectors

1 Ensure the provision and use of a methacrylate lens is accordance with ASTM D 788,

grade 8. 2 For delineators or markers, provide retroreflectors consisting of a round, retroreflective

unit house in an embossed frame with a single, grommeted mounting hole. Provide lenses that are:

1.Colorless or of the color specified, with approximately 7 in2 [4500 mm2] of

retroreflective surface and

2.Fused under heat and pressure around the entire perimeter and the center

mounting hole to an opaque back to form a unit permanently sealed against dust, water, and water vapor. 3 Ensure the provision and use of a retroreflector housing made:

1.Of 5052-O aluminum 0.020 in [500 µm] thick;

740

Signs and Traffic Devices

Source: Wyoming Standard Specifications for Road and Bridge Construction, 2021 Edition. Pages 0–0 of 771.

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814 Water

816 Table 816.10.2-1