US Army Corps of Engineers
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Olmsted Locks and Dam - Construction Stages

The project will be constructed using several construction contracts and will become operational in the year 2020. The current plan calls for the following contracts:

  1. Access Road/Resident Engineer`s Office - The construction of the road and the office was the first construction contract for the project. The contract was awarded November 1992, and construction completed June 1994.
  2. Lock Cofferdam - This cofferdam was used to construct the locks and make connection to the Illinois shore. The contract was awarded in May 1993, and construction was completed in December 1995, at a cost of approximately $58 million.
  3. Prototype at Smithland Locks and Dam - The prototype facility was constructed to verify the design of the dam and aid in the selection of materials. Construction began in 1994, and work was completed in December 1995.
  4. Locks - The construction contract for the twin 1200-foot lock chambers was awarded in December 1995 and completed in March 2002 for $273,500,000.
  5. Bulkheads - The construction contract to fabricate the operation and maintenance bulkhead was awarded in September 2001 for $24,156,000. The installation of the operating bulkheads was completed in 2005.
  6. Lock Approach Walls - The Corps awarded the contract for the approach walls in September 1999 for $98,980,610. The approach wall work was completed in 2004.
  7. Boat Ramp Relocation - The Village of Olmsted boat ramp has been relocated downstream. The construction contract for the new ramp was awarded in June 2001 and was completed in October 2002.
  8. The design-build contract for the gate storage facility was awarded in March 2002 to AquaTerra Contracting Inc., a hub-zone contractor, for $8.6 million. The design and construction are complete.
  9. Buildings and Grounds - Operational buildings will be constructed on the service mound adjacent to the locks.
  10. Dam - The construction contract for the tainter gates and navigable pass was awarded on January 28, 2004. The construction of the dam is scheduled to be completed in 2020.
  11. Demolition of Locks and Dams 52 and 53 - When all the features of the Olmsted Locks and Dam are constructed, Locks and Dams 52 and 53 will be removed.