West Virginia has numerous steel girder overpasses that are built with low clearances over major roadways with high truck volumes. With recent booms in the oil and gas industry, larger equipment is being transported over the highways and leading to an increase in impacts to West Virginia Department of Transportation (WVDOT) bridges. With impact damages on the rise, the WVDOT Maintenance Division has initiated a comprehensive program to repair these damages, overseeing various types of heat straightening repair projects managed in-house, as well as in partnership with consultants such as Burgess & Niple, Inc. (B&N). In this presentation, two bridge projects will be reviewed, both of which are built-up, rivetted steel girder sections over U.S. Route 50.
Repair on the Second Street Bridge near Clarksburg, West Virginia was completed in October 2019. The project was designed to heat straighten the damage without removal of the lower angles. The results of the repair were not as desired with some deformation and creasing remaining. The lower angle cracked and additional welding was needed to restore the capacity. The bridge underwent cleaning, painting and other miscellaneous repairs as well. Plans for this bridge were developed by WVDOT Maintenance Division.
The I-77 Northbound Bridge near Parkersburg, West Virginia is currently in design. Lessons learned on Second Street are being incorporated into the design being completed by B&N. Damaged sections of the lower angles will be removed while a temporary plate is used to support the dead loads. The method of repair of steel cracking in the web will also be presented.