Title 33 › Chapter CHAPTER 9— - PROTECTION OF NAVIGABLE WATERS AND OF HARBOR AND RIVER IMPROVEMENTS GENERALLY › Subchapter SUBCHAPTER VII— - DAM INSPECTION PROGRAM › § 467n
After November 17, 1986, the federal government must get back money spent when the Secretary makes safety changes to dams or related works because of new flood, earthquake, or design information. Fifteen percent of those modification costs are treated as part of the project and are split among project purposes. Non‑federal partners pay their share the same way they did when the project was first built. The Secretary of the Interior must recover irrigation shares under Public Law 98–404. Except for irrigation costs, repayment can be spread, with interest, up to 30 years after the work is finished. The Treasury sets the interest rate using recent market yields on comparable U.S. securities plus one‑eighth of one percentage point. If more than one rate applies, Treasury uses a weighted average. Nothing here changes the Secretary’s authority or cost sharing for work under Public Law 84–99.
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Navigation and Navigable Waters — Source: USLM XML via OLRC
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33 U.S.C. § 467n
Title 33 — Navigation and Navigable Waters
Last Updated
Apr 6, 2026
Release point: 119-73