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Posted 4/27/2017

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Project Manager

Marseilles, IL

Marseilles Lock is 244.6 miles above the confluence of the Illinois River with the Mississippi river at Grafton, Illinois, at the foot of Bells Island. Marseilles Dam is 2.5 miles upstream of the lock at the head of Bells Island.

The lock and dam is located southwest of Marseilles, Ill., near Illini State Park. The Marseilles Canal, adjacent to the left bank of the Illinois, extends from the dam to the lock.

The lock is 110 feet wide by 600 feet long. The maximum lift is 24.5 feet with an average lift lower than 24 feet. It takes an average of 15 minutes to fill the lock chamber; 10 minutes to empty it.

Project Components:

· Dam: Concrete structure with eight Tainter gates between Bells Island and right bank
· Headraces: Gated structures controlling flow to hydropower facility (not currently in use)
· Earth Dike: Earthen embankment extending upstream from the Headraces along the right bank
· Lock: Located downstream of Dam, via canal between Bells Island and left bank

Project Timeline


Barge Incident – April 18, 2013 – Seven barges break loose and impact dam

  • Aftermath – Severe residential flooding, five Dam gates damaged (two inoperable),  erosion of Earth Dike, inundation of equipment at Lock

Barge Recovery (barge company) – April 25 to June 17, 2013

Construction of Rock Dike – April 27 to May 15, 2013 

  • Constructed to stop flow through inoperable gates
  • Allowed recovery of barges and installation of bulkheads

Installation of Bulkheads – June 18 to June 27, 2013 

  • Installed to block flow through inoperable gates

Emergency raise of Earth Dike – May 30 to June 1, 2013 

  • Installed to mitigate impact of Rock Dike on upstream river levels during high flow

Detailed Dam Assessments – Summer & Fall 2013

Permanent Dam Design – Fall 2013 to Summer 2014

Installation of additional flood protection at headrace (city) – March 2014

Award Permanent Dam Repair Contract – 23 September 2014

Perform Permanent Dam Repair Construction – Fall 2015 through Spring 2017

Permanent Earth Dike Design – 2016/2017

Award Permanent Earth Dike Repair Contract – June 2017

Perform Permanent Earth Dike Repair Construction – Summer/Fall 2017

All Dam and Earth Dike Repairs Complete – End of Calendar Year 2017


OM - Operations and Maintenance

Summarized Project Costs

Estimated Federal Cost  $43,560,000 
Estimated Non-Federal Cost  N/A
Estimated Total Project Cost  $43,560,000 
Allocations Prior to Current FY 2017 Cost  $43,560,000 
Current FY 2017 Allocation (received to date) $0 
Current FY 2017 Total Capability  $3,000,000 

Major Work Item Current Year
FY 2017:
Finish construction and begin closeout of construction contract for Permanent Dam Repair. Award and administer construction contract for Permanent Earth Dike Repair. The project was fully funded in FY2016.