Pere Marquette Instream Habitat Enrichment Project

FWS Agreement Number

30181-A-G017

Study Objectives

The Pere Marquette River lacks instream woody debris between M-37 and Rainbow Rapids, two popular recreational access points. There are locations in this stretch where up to a thousand feet of river is void of any significant log jam structure. CRA and partners planned on focusing on a 20 mile stretch of the Pere Marquette mainstem, incorporating 2,000 lineal feet of woody debris in the form of log jam, log revetment, whole tree revetment, and island structures. This would include the installation of up to 50 structures measuring on average 40 feet in length, specifically prescribed for sites taking into consideration stream channel morphology, access, materials availability and landowner permission. CRA and partners considered site selection and prescription with respect to navigation, recreational access, and other current issues. Fish and wildlife species to benefit from the addition of instream habitat include brook, brown and rainbow trout, mottled sculpin, Coho and Chinook salmon, a variety of aquatic insects, and wildlife including otter, mink, turtle and frog species.