Title 33 › CHAPTER 11 — BRIDGES OVER NAVIGABLE WATERS › SUBCHAPTER II — ALTERATION OF BRIDGES › § 516
When the Secretary allows a bridge owner to start an alteration and after the owner has had a chance to speak, the Secretary must decide how much of the total project cost the United States will pay and how much the bridge owner must pay. The owner must pay the part that comes from direct benefits to the owner, like expected savings on repairs and maintenance, and the part tied to traffic needs (railroad or highway), including work to increase load capacity. The owner also pays a share of the old bridge’s original cost based on how much of its useful life has already been used. If the change is wanted partly because the bridge blocks navigation and partly for some other reason, the Secretary may make people who want it changed for the other reason help pay. If the owner does the work in separate bids, the Secretary can set the full cost split using the first accepted bid and an estimate for the rest. The Secretary may later adjust the cost split if conditions change.
Full Legal Text
Navigation and Navigable Waters, Source: USLM XML via OLRC
Legislative History
Reference
Citation
33 U.S.C. § 516
Title 33, Navigation and Navigable Waters
Last Updated
Aug 21, 2026
Release point: 119-102