In 1973, a planned extension to Interstate 94 between I-694/494 and the St. Croix River was cancelled due to concerns raised by residents. This study is part of a restudy that was ordered by the Commissioner of Highways to find the best route for the freeway, taking in to account the resident's concerns. This report analyzes the effects the proposed highway would have on wildlife and vegetation.
Early in July 1973, Commissioner of Highways, Ray Lappegaard , made the decision not to award the contract for the first stages of construction of 1-94 between 1-694/494 and the St . Croix River in Washington County. The decision was made in direct response to concerns raised by local citizens over the proposed location of the highway.
This Technical Summary pertains to LRRB-produced report 2019-02, Minnesota Guide for Stream Connectivity and Aquatic Organism Passage Through Culverts.
This Technical Summary pertains to the LRRB-produced Report 2011-19, “Performance Assessment of Oversized Culverts to Accommodate Fish Passage,” published August 2011.
Wetlands are known for their susceptibility to invasive plants. During the past few decades, diversity and complexity of native plant communities in southern Minnesota wetlands have become threatened by reed canarygrass, a perennial, cool-season grass that outcompetes native vegetation. This invasion is often associated with disturbances such as ditch building and stream channeling sedimentation, and with intentional planting for forage and erosion control.
This Technical Summary pertains to the LRRB-produced Report 2009-20, “Cost Analysis of Alternative Culvert Installation Practices in Minnesota,” published June 2009.
