US Army Corps of Engineers Detroit District – Michigan City, IN

Trail Creek Sea Lamprey Barrier – Completed May 2012


Project consisted of the Installation of a combination Sea Lamprey Trap/Fish Way on Trail Creek in Michigan City, Indiana. This work included a sheet pile wall across the creek to raise the water elevation, rip rap bank stabilization, cofferdam installation, construction of a concrete fishway/lamprey trap within the cofferdam, construction of an access road to the work site, and construction of access stairs for recreational users. Some of the challenges encountered during this project were completing the construction on the west bank of the river without access. Everything had to be staged and accessed from the east bank. Another challenge was working with multiple customers. This project was jointly funded by the US Army Corps of Engineers, the US Fish and Wildlife, the Great Lakes Fisheries Commission, and the Indiana Department of Natural Resources.


US Department of Interior – Fish & Wildlife Service – Wellston, MI

Construction of the Manistee River Sea Lamprey Trap, Tippy Dam – Completed May 2011


This project consisted of installing a sea lamprey trap and reshaping the Manistee River to allow the lamprey access. The project included constructing a stone access road across the Manistee River to create access and a work platform to construct the stone weir. The access road area was restored after the weir was completed. The river bottom and river banks were then reshaped to accommodate the new sea lamprey trap. A cofferdam was installed to allow installation of the new trap. Sand bags were strategically placed in conjunction with pumps to keep water out of the cofferdam system. A concrete foundation was anchored into the river bottom as a base for the trap. Steel sea lamprey trap was then fabricated and set onto steel piles. Concrete steps and a steel fabricated walkway were installed to access the new trap.


USDA Forest Service – Munising, MI 

Grand Island Dock Rehab – Hiawatha National Forest – Completed November 2010

dock rehab


Reconstruct barge dock and ferry service area at Powell Point and Williams Landing with Approximately 295 lineal feet of new steel sheet piling. New heavy dock timbers and rubber bumpers on the barge docks; (2) new Vehicle ramp foundations and rebuild of existing vehicle ramps; (2) New 30’ Aluminum gangways with hydraulic operators; Concrete flatwork, steel hand railing, utility relocations, and finish landscaping to include new pavers, split rail fence, and misc. shrubs and trees.

2010 USFS Grand Island Dock Rehab GR dock


US Army Corps of Engineers – Petoskey, MI

Harbor Breakwater Repair of Sections B, C & D – Completed October 2010


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On March 14, 2006, a strong wind storm pounded the concrete breakwater protecting the City of Petoskey’s marina from the crashing waves of Little Traverse Bay. A 50’ long section of the breakwater gave way from the 40+ M.P.H. winds pushing the ice and water. The US Army Corps of Engineers added large stone to the breached area as a temporary fix until funds could be secure to rebuild the 100 year old aging breakwater.

IMS was contracted to repair sections B and C of the breakwater. Section B was where the breach occurred. This consisted of 603 linear feet of concrete and stone breakwater to be removed and replaced with 36,000 tons of locally quarried stone and 610 cubic yards of steel reinforced concrete walkway. This project had material under runs and value engineering options which allowed for a significant cost savings to the US Army Corp which allowed Section D to be rebuilt also. Section D consisted of 355 linear feet of concrete walkway and 480 tons of additional stone.

The work was completed using barges and cranes to transport and place stone. The stone was quarried in Cedarville, MI and loaded onto numerous barges and tugged from Cedarville to Petoskey. Once in Petoskey the 16 to 20 ton stones were strategically placed along the breakwater.  Once the stone work was completed, the concrete walkway could be formed and placed. The concrete had to be pumped 1300 feet from shore to reach the outer part of Section B. All work was completed without a safety incident or accident.

During the construction of the project, much care had to be used because of the popularity of the structure with the local tourists. Barricading and monitoring took place to keep beach goers safe. Another challenge was the weather. When wind picks up, waves would crash over the top of the structure whisking away anything that is not securely fastened down.