US Army Corps of Engineers
Chicago District

Calumet Prairie & Ivanhoe South Restoration


Great Lakes Fishery and Ecosystem Restoration (GLFER) Program, Section 506 on the Water Resources Development Act of 2000, as amended

Project Description:

Calumet Prairie and Ivanhoe South are located in northwestern Indiana within Lake County, and  situated within a few miles of the Lake Michigan coastline.  Calumet Prairie rests just south of the 1-90 toll way and just west of state route 51, while Ivanhoe South lies southwest of the intersection of Fifth Avenue and Colfax Street. The boundaries of Ivanhoe South and Calumet Prairie encompass 33 acres and 144 acres, respectively.

The two project sites have degraded significantly over the years due to impaired hydrology, invasive plant species, and suppression of fire. The general project objective was to restore the structure, function, and dynamic processes of this degraded ecosystem.  This was accomplished through clearing of successional woodlands in wet sand prairie habitats, removing invasive species from all habitats, selectively clearing opportunistic woody vegetation in sand savanna to create a 50 percent or more open canopy, maximizing infiltration to help contribute to better hydrology, planting appropriate native seed specific to this area and habitat type, performing prescribed burning, allowing recovery of native seed bank, and planting populations of wild lupine (Lupinus perennis) of local genotype at Ivanhoe south to restore habitat for the federally endangered Karner blue butterfly (Lycaeides melissa samuelis).


Total Project Cost:      $2,198,600
Federal Cost:              $1,429,100
Non-Federal Cost:       $769,500

This project was funded with Great Lakes Restoration Initiative (GRLI) funds.

Currrent Status: 

Awarded a five-year construction contract in September 2011. Construction was completed fall of 2016 and the project was closed out in August 2017. Below is a picture of a new orchid never before recorded at Calumet Prairie. Several Green Fringed Orchids (Platanthera lacera) were found in an area where invasive shrubs and trees were cleared.

Project Manager

Kirston Buczak

Project Map

Click map to enlarge.