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Client: U.S. Army Corps of Engineers, Kansas City District
Location: Alton, Illinois, United States
Project Type: Civil/Heavy
Contract Amount: $220,000,000 USD
Delivery Method: General Contracting
Project Size: N/A
Start Date: April 1989
Completion Date: May 1994
Architect/Engineer: Corps of Engineers
Participating Alberici Enterprises
Services Performed
U.S. Army Corps of Engineers Melvin Price Locks and Dam 26
Alberici Constructors, Inc. teamed with Martin K. Eby Construction Company to build the third stage cofferdam, auxiliary lock and the remainder of the dam at Melvin Price Locks and Dam 26. Melvin Price is the largest lock and dam of its kind on the Mississippi River and will accommodate about 70-million tons of commercial traffic annually.
This project was extremely challenging in part because of the concrete specifications set by the Corps. These required Alberici to build an on-site concrete batch plant capable of producing 200-cubic-yards of concrete per hour with a concrete temperature of 40 to 50 degrees farenheit achieved twenty minutes after mixing. Over the course of four years, the project required Alberici to batch and place 330,000-cubic-yards of concrete, drive 490,000-linear-feet of H-pile, 312,000-linear-feet of sheet pile, install 11,000-tons of rebar, set 210 precast beams weighing 215-tons each, set gates weighing 1400-tons each, and place 350,000-tons of subaqueous rock. Most of the work was accomplished in a cofferdam area that would normally be 50-feet under water.