To authorize the Secretary of the Interior to amend the Definite Plan Report for the Seedskadee Project to enable the use of the active capacity of the Fontenelle Reservoir.

[AI summary unavailable — showing source text] Amends the Colorado River Storage Project Act to authorize the Department of the Interior, in cooperation with the state of Wyoming, to amend the Definite Plan Report for the Seedskadee Project to provide for the study, design, planning, and construction activities that will enable the use of all active storage capacity of Fontenelle Dam and Reservoir, including the placement of sufficient riprap on the upstream face of the Dam to allow such storage capacity to be used for authorized Project purposes. Authorizes Interior to enter into: (1) any contract, grant, cooperative agreement, or other agreement that is necessary to carry out this Act; and (2) contracts with Wyoming for division of any additional active capacity made available under this Act. Directs Interior to enter into a cooperative agreement with Wyoming for planning, design, related preconstruction activities, and construction of any modification of the Fontenelle Dam, which shall specify the responsibilities of Interior and Wyoming regarding: (1) completing the planning and final design of the modification of the Dam, (2) any environmental and cultural resource compliance activities required for the modification of the…