US Army Corps of Engineers
Rock Island District Website


Trempeleau Habitat Rehabilitation and Enhancement Project

St. Paul District

Pool 6, Upper Mississippi River, Miles 718 - 725, Trempealeau  and Buffalo Counties, Wisconsin, Congressional District: Wisconsin - 3




A railroad embankment separates the Refuge from the main channel of the river.  The role of the Refuge as a major feeding and resting area for migratory birds had been declining.  Wetlands in the southern half of the Refuge were largely unproductive for wildlife because of turbid water conditions that limited aquatic plant growth.  Wave action and rough fish contributed to the water quality problem.  In other areas of the Refuge, woody vegetation was expanding into wetland areas.

Quick Facts

  • Approximate Acres: 5487
  • State(s) Covered: Wisconsin
  • Land Ownership: Federal
  • Management Agency: USFWS
  • Management Authority: Refuge

Project Features

  • Constructed dikes to create three separate management pools.
  • The 700-acre pool A has a pump station that is capable of drawing down the water level by 3 feet to establish and promote the growth of aquatic vegetation.
  • Water levels can be increased up to 4 feet to control woody vegetation in the 220-acre pool C2 by using portable pumps or a Trempealeau River inlet.
  • Water levels can be increased 2 feet in the 550-acre pool E using portable pumps.


  • The Definite Project Report was completed in January 1994.
  • Construction was initiated in November 1995 and completed in September 1999.