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, . . . The increased costs reflected in the current plan, other than the ordinary construction cost-increases, are due primarily to the fOllowing: 1. Design changes (due to revised IOF) to dam spillway. 2. Additional land for project operations. 3. Additional lands for wildlife mitigation. Operation, Maintenance, and Replacement (OM&R) Costs The current estimated annual OM&R expenses associated with the unit total $817,700. Comparative estimates are tabulated below: . Item 1973 OPR $ 35,700 42,500 74,400 20,700 186,700 $360,000 Current plan Total OM&R costs $ 51,900 47,400 82,800 23,100 612,500 Y $817,700 Dam and reservoir Wildlife management areas Fish hatchery Jackson Lake , Recreation development 1/ Increase is based on Colorado Division of Parks and Outdoor Recreation estimate of $0.50 per visitor day. Narrows Dam and Reservoir will be operated and maintained by the Bureau of Reclamation. The Corps of Engineers will direct flood operations when the reservoir water surface is in the allocated flood control pool. The joint~use pool may be operated for flood purposes in accordance with a field agreement that will be executed between the Corps of Engineers and the Bureau. The Lower South Platte Hater Conservancy District and the Central Colorado Water Conservancy District are the entities which will contract for the water supply. The conservancy districts will subcontract with the individual ditch companies and irrigation districts who will continue to be responsible for the actual oper~tion and maintenance of all existing irrigation works. The recreation and fish and wildlife lands and facilities will be transferred to appropriate State agencies, namely, the Colorado Division of Parks and Outdoor Recreation and the Colorado Division of Wildlife, for administration and management. 12