Reno Bottoms

Habitat Rehabilitation and Enhancement Project - Mississippi River, Pool 9, River Miles 671-682, Houston County, MN and Allamakee County, IA

Project Partners

Corps of Engineers (Corps), U.S. Fish and Wildlife Service (USFWS) - Upper Mississippi River National Wildlife and Fish Refuge, Minnesota Department of Natural Resources (MNDNR), Wisconsin Department of Natural Resources (WIDNR), Iowa Department of Natural Resources (IDNR), and the U.S. Geological Survey (USGS)

About Reno Bottoms Habitat Rehabilitation and Enhancement Project (HREP)

  • The Reno Bottoms study area encompasses approximately 14,000 acres of backwater area on the western side of Pool 9 of the Mississippi River. Reno Bottoms falls within an area that was established as a refuge by Congress to provide habitat for migratory waterfowl, waterbirds, fish, and other wildlife species, as well as to provide educational and recreational opportunities to the public.
  • The project area has experienced significant degradation over the past century and is predicted to further degrade. Human caused changes in hydrology, land use, and climate have increased water levels within the project area. The forest has been impacted by the presence of invasive plants and animals, plant disease, deer browsing, and beaver activity.
  • Phases - As shown on the map, the Reno Bottoms study area has been separated into two distinct phases. The phase 1 project area spans the southern part of Reno Bottoms and is nearing the end of the feasibility stage. Phase 2 area, not started, could evaluate the problems and opportunities in the northern Reno Bottoms. Each phase is a standalone HREP that is part of a larger vision or plan for Reno Bottoms' natural resources. This StoryMap will focus on the phase 1 project area.


Objectives

Primary Objective

Protect, enhance, restore, or create naturally regenerating, resilient and diverse bottomland forest habitats and expand interior forest conditions.

Photo of dead trees and water at Reno Bottoms.

Secondary Objective

Protect, enhance, restore or create backwater and flowing channel habitats, to provide flow conditions and sediment dynamics that will benefit native fish and mussel populations that live in, or depend on, those habitats.

Air photo of north edge of Reno Bottoms

Tentatively Selected Plan Features

Tentatively Selected Plan Features

 Click the boxes below to zoom to each feature on the map. 

The main project features are:

Map legend of project features

Forest Management

Forest management actions include site preparation (tilling and discing of soil in place) to facilitate natural regeneration, herbaceous and woody vegetation control (chemical and mechanical), and targeted planting of trees. Design would vary with location within each zone.

Forest management areas include Army Road, Dark Slough, Twin Island, Whalen, Ice Haul, Island 135, and Main Channel.

Elevation Raised Area & Forest Management

Modify elevation of forest using fine and granular material dredged from on-site locations. Material would be placed via hydraulic or mechanical dredging. Elevation areas are also Forest Management areas.

Elevation Raise Area and Forest Management include Army Road and Ice Haul.

Partial Closure

Partial closure of the Ice Haul North inlet to reduce inflows and sediment transport into overwintering habitat.

Partial closure will have a 10-foot wide notch to allow for boat traffic.

Map showing partial closure structure planned for Reno Bottoms.

Graphic of Ice Haul Partial Closure Draft Design

Aquatic Habitat & Borrow

Borrow material locations would also provide overwintering habitat for fish.

Aquatic Habitat and Borrow areas include Ice Haul and Cordwood South.


To look at land cover and imagery, click  here .

References

Reno Bottoms Feasibility Report and Integrated Environmental Assessment (Not yet published)

Map legend of project features

Graphic of Ice Haul Partial Closure Draft Design