Project Update Archive

Sterling State Park Projects

March 10th, 2013

At Sterling State Park, Michigan DNR is re-creating approximately 18 acres of emergent and submergent Great Lakes marsh and 32 acres of lakeplain prairie.  A second project involves repairing dikes and installing water control for 310 acres of marsh.  Pragmites is also being controlled in approximately 1,100 acres.  Project completion is scheduled for 12/31/12.  Annual phragmites control and monitoring will continue into 2013.  Project funding of $3.42M is from GLRI.

Sterling Island Habitat Restoration

March 10th, 2013

Sterling Island is a man-made island within the Area of Concern. It has experienced significant erosion and is a major contributor of sediment, impairing aquatic habitat by reducing spawning, nursery and refuge habitat for fish and aquatic organisms. This restoration addresses loss of fish and wildlife habitat by constructing of a rock deflector and longitudinal stone toe to protect the existing bank against river flows, wave action, ice flows and Lake Erie seiches. Grading and installation of timber steps prevent erosion from pedestrian foot traffic. The project will also provide aquatic habitat benefits, including a rock substrate spawning area and basking area for waterfowl and turtles. The project was completed in late 2012 with $500,000 from the Great Lakes Restoration Initiative.

Fish Passage

March 10th, 2013

The River Raisin fish passage goal is to reconnect Lake Erie to the lower 23 miles of the River Raisin allowing passage of fish and canoes/kayaks, addressing Loss of Fish and Wildlife Habitat and Degradation of Fish and Wildlife Populations.  Phase 1 reopens 3.5 miles through the removal of 2 low-head dams and the installation of rock arch rapids at 2 locations in the City of Monroe.  Phase 2 provides 19.5 miles by installing 2 rock arch rapids, constructing a small channel adjacent to Waterloo Dam, and cleaning out Grape Mill Race.  Phase 1 will be completed by 11/30/12.  Phase 2 completion is scheduled for summer 2013.  Funding of both phases is $2.96 M from GLRI.

PCB Sedimentation Removal

March 10th, 2013

In 1987 the River Raisin was designated a Great Lakes AOC with PCBs sediment being the primary chemical of concern.  In 1997, Ford Motor Company removed 20,000 cubic yards of highly PCB contaminated sediment from the AOC, under USEPA order.  From 1998-2002, the USEPA and MDEQ conducted post-remediation sediment monitoring finding high levels of PCB remained.  PCB contamination caused the following Beneficial Use Impairments (BUIs): Restrictions on Fish/Wildlife Consumption; Bird/Animal Deformities/Reproduction Problems; and Restrictions on Dredging.

To address the BUIs, the Great Lakes Legacy Act Agreement executed on 4/03/12 providing $17.3 M for the remediation project.  The USEPA Contaminated Sediment Project includes excavation of the Sterling State Park Confined Disposal Facility (CDF) then filling the CDF with PCB contaminated sediment from the AOC.  The use of the CDF required the removal of an equal volume (106,000 CY) to preserve the capacity of the CDF for future navigation channel maintenance.  Testing confirmed that 112,000 CY of CDF material is inert and the material will be excavated, dewatered, stockpiled and used on the Ford property site.  The total dredging volume from the river includes 109,000 CY of material.  Project completion estimated for early 2013.