4139.01
GENERAL REQUIREMENTS.
A.
Meet the requirements for the type specified.
B.
Use the type recommended by the manufacturer for this use, subject to approval of the Engineer. Acceptance will be according to Materials I.M.
491.12
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Source: Iowa Standard Specifications for Highway and Bridge Construction, 2023 Edition. Pages 1103–1103 of 1,288. View official source ↗