The westbound I-70 bridge over the Missouri River was built in the middle of the last century and is in need of major repairs. Spans such as these are designed to last 100 years with a major re-fitting required at 50 years.
Things are moving along as planned. The westbound lanes will close and shift to the eastbound span no sooner than November 1st. Weather may have an effect on the actual closure date, as will the availability of steel as it is manufactured for the new truss and approach spans.
The rehabilitation of the Westbound I-70 Bridge will include:
- Removal and replacement of the existing truss spans with new trusses.
- Replacement of the complete driving surface, edge barrier walls and all expansion joints
- Elimination of the three spans nearest to the St. Louis County end and their conversion to roadway on embankment
- Repair all remaining concrete substructure units including replacement of some parts
- Complete replacement of the structural steel in the first nine spans of the bridge on the St. Charles County side
- Repair of the structural steel components of the long girder spans and the truss spans
- Repainting of all existing structural steel