1974—Subsec. (c). Pub. L. 93–251 lower cased “agency” in two places, and substituted “to the design standards which the State or owning political division would use in constructing a new road under similar conditions of geography and under similar traffic loads (present and projected).” for “to design standards comparable to those of the State, or, where applicable State standards do not exist, those of the owning political division in which the road is located, for roads of the same classification as the road being replaced. The traffic existing at the time of the taking shall be used in the determination of the classification.”

1962—Subsec. (a). Pub. L. 87–874 added subsec. (a). Former subsec. (a) redesignated (b).

Subsec. (b). Pub. L. 87–874 redesignated former subsec. (a) as (b), and among other changes, inserted “irrigation,” before “or multiple-purpose project” and substituted references to head of the Agency concerned, for references to Chief of Engineers. Former subsec. (b) redesignated (c).

Subsec. (c). Pub. L. 87–874 redesignated former subsec. (b) as (c), substituted construction authority to head of the agency concerned for authority to Chief of Engineers, provided that where State standards do not exist, those of the owning political division in which the road is located shall be used, that where a State or political subdivision requests a substitute road to be constructed to a higher standard than provided in this subsection, and pays the additional costs, the Agency head is authorized to so construct the road, and that the Federal costs under this subsection shall be part of the nonreimbursable costs.