Evaluation of Planning for Fish and Wildlife at Corps of Engineers Reservoirs, Red Rock Reservoir Project, Iowa.

摘要

Lake Red Rock is located on the Des Moines River 96 km (60 mi) below Des Moines, Iowa. The project was authorized to provide flood control and low flow augmentation. The authorized conservation pool covers 3,622 ha (8,950 ac) but the project has recently been operated with a conservation pool of 4,634 ha (11,540 ac) to accommodate the flow augmentation storage lost due to sedimentation. A total of 19,267 ha (47,608 ac) were acquired in fee title for project purposes. Construction of the reservoir resulted in a significant reduction in the amount of cropland and the loss (1,672 ha (4,130 ac)) of flood plain woodland. On the other hand, the Red Rock Lake project created a large, public holding and created wildlife habitat unique to this area of Iowa. Comparison of aerial photographs failed to demonstrate quantifiable alteration of habitat types below the dam following completion of the project. (Author)