Pekin, Illinois
Illinois Department of Transportation
$3,500,000
2000
Project Information:
The McNaughton Bridge carries Illinois Route 9 over the Illinois River in Pekin, Illinois. The bridge's main river spans consist of a 1320-foot, three-span continuous dual steel box beam unit with span lengths of 385 feet, 550 feet and 385 feet. The main river span unit carries two lanes of traffic in each direction and is supported by an orthotropic steel deck plate with a 2 3/4" wearing surface. An advanced state of corrosion had occurred to the top of the steel deck plate which was attributed partially to the failing bituminous surface.
Phase I engineering involved a hands-on inspection and structural evaluation to determine the cause of the orthotropic deck system's wearing surface deterioration. As-built and as-inspected structural load ratings were performed for the main span superstructure and orthotropic deck system. Rehabilitation alternatives were proposed for redecking the structure. Phase II engineering involved the design and preparation of plans and specifications for a composite steel-fiber-reinforced-concrete overlay.
This project was awarded the Engineering Excellence Merit Award by the Consulting Engineers Council of Illinois in 2002.
Modjeski and Masters, Inc. provided the following engineering services, in accordance with the Illinois Department of Transportation's standards, for these phases of work:
Phase I
- Preparation of Rehabilitation Recommendations Report
Phase II
- Contract Plans
- Specifications