Rock Island District Header Image



Posted 5/3/2017

Bookmark and Share Email Print

Operations Project Manager
(515 )276-4656 x6504

Saylorville Lake, Johnston Iowa

Saylorville Lake Project including the Big Creek Remedial Works is a multi-purpose project providing primary benefits in flood control and secondary benefits in low-flow augmentation, recreation, environmental stewardship, and water supply. Storage volume at full flood pool is 626,465 acre feet. The main dam is located about 8 miles northwest of Des Moines, Iowa, on the Des Moines River and was completed in 1975.

The project includes: Saylorville Dam with Control Tower, Pneumatic Crest Gate Spillway with discharge channel and the Big Creek Remedial Works which includes: Barrier Dam with Pump Station, Diversion Dam with Control Tower, Diversion Channel and Terminal Dam/Spillway. Cumulative damages prevented since project became operational (1977) =$385,000,000 (2016 $). The project includes 25,515 acres of fee title lands and there are 30 recreation area sites. FY16 recreation fee receipts and lease revenues were $800,000. Regional FY16 economic impact is$27,743,000 from an estimated 1,500,000 visitors.

Project in operation.

OM - Operations and Maintenance

Summarized Project Costs

Estimated Federal Cost  N/A 
Estimated Non-Federal Cost  N/A 
Estimated Total Project Cost  N/A 
Allocations Prior to Current FY Cost  N/A 
Current FY 17 Allocation (received to date)  $5,470,740 
Current FY 17 Total Capability  $5,470,740 

Major Work Item Current Year
FY 17:
Funds are being used for operation and maintenance of five flood control structures and related infrastructure, and dam safety programs and activities. Funds are also being used for operation and maintenance of recreation areas and related infrastructure. These funds support management of the recreation program and public visitation as well as functions that support recreation management by other lessees, agencies, and partners. Funds are also being used for environmental stewardship activities to protect the health, sustainability and integrity of the public lands associated with the project. Funds are also being used to work on the following non routine items: relocation of lost monuments and installing additional in-line signage to prevent encroachments, remedy the effects of Emerald Ash Borer invasion, target tree removal and re-plantings, and improve pollinator habitats. Funds are also being used for performance of water supply contract administration and compliance.