33 U.S.C. § 496 : US Code - Section 496: Time for commencement and completion of bridge

Search 33 U.S.C. § 496 : US Code - Section 496: Time for commencement and completion of bridge

Whenever Congress shall after March 23, 1906, by law authorize
the construction of any bridge over or across any of the navigable
waters of the United States, and no time for the commencement and
completion of such bridge is named in said Act, the authority
thereby granted shall cease and be null and void unless the actual
construction of the bridge authorized in such Act be commenced
within one year and completed within three years from the date of
the passage of such Act.