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ROCK ISLAND DISTRICT

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Steamboat Island Habitat Rehabilitation and Enhancement Project

Rock Island District

Pool 14, Upper Mississippi River, Miles 503.5 - 505.5, Scott County, Iowa

Partners

  • USFWS 

Description

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.

Quick Facts

  • Approximate Acres: 1280
  • Congressional District: Iowa - 2
  • State(s) Covered: Iowa
  • Land Ownership: Federal
  • Management Agency: USFWS
  • Management Authority: Refuge

Features

  • Wetland diversity
  • Backwater dredging
  • Topographic diversity
  • Forest Diversity 

Milestones

  • The Fact Sheet was approved in September 2010.