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Posted 5/4/2017

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Regional Program Manager (309) 794-5428

Pool 14, Mississippi River Mile 503.5 to 505.5, Scott County

The Steamboat Island Habitat Rehabilitation and Enhancement Project (HREP) is located on the right descending bank of the Mississippi River in Pool 14 of the Upper Mississippi River (UMR) within the UMR National Wildlife and Fish Refuge, between RM 503.5 to 505.5, approximately 1 mile above Princeton, Iowa. It is bound by the main channel on the north, east, and south and by Steamboat Slough on the west. The Princeton State Wildlife Area is just west of the island.

This area includes backwater lakes, sloughs, flowing channels, and remnant islands. Though degraded, this important backwater area supports a diverse population of wildlife including ducks, geese, swans, pelicans, eagles, and muskrats.

Historically, Steamboat Island contained a number of small backwater lakes, sloughs, cuts, and flowing side channels. These habitats provided valuable overwintering, spawning, and feeding areas for a variety of fish, especially centrarchids. Migratory birds, including waterfowl, shorebirds, and wading birds also used the area extensively. Years of silt deposition has allowed willows and silver maples to colonize the once-aquatic portions of the island, resulting in a degraded wetland complex. In addition, impoundment of the pool and permanently higher water tables have affected the health of floodplain habitat on islands and adjacent floodplain areas. These higher water tables are affecting forest composition and regeneration.

Feasibility study of the project has been initiated and the report is scheduled for completion in 2020.

CG - Construction General

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 2017 Cost N/A
Current FY 2017 Allocation (received to date) N/A
Current FY 2017 Total Capability N/A

Major Work Item Current Year
FY 2017: Funds are being used to advance the Feasibility Report and to continue pre-project monitoring.