A bill to amend the Reclamation Safety of Dams Act of 1978 to modify the authorization of appropriations.

Amends the Reclamation Safety of Dams Act of 1978 to increase the authorization ceiling for FY2014.

Increases the maximum amount of funds that may be be obligated for carrying out actual construction to modify an existing dam prior to 30 calendar days from the date that the Secretary of the Interior has transmitted a report on such dam to the Committee on Natural Resources of the House of Representatives and the Committee on Energy and Natural Resources of the Senate (currently, to Congress).

Requires the Secretary, at least 30 days before making modification expenditures of between $1.8 million and $20 million, to submit to such Committees written notice that provides a summary of the project, the cost of the project, and any alternatives that were considered.