Type of Improvement: BRIDGE REPLACEMENT

Firm's Project Manager: ROBERT B. QUISENBERRY,P.E.,L.S.,V.P.-STRUCTURES, FIRM PRINCIPAL

Firm's Project Engineer: PAUL L. HENDRICK, P.E., PROJECT DESIGN ENGINEER

Project Description :

The existing I. C. Gulf Railroad crossed over U.S. Hwy. 41A on an outdated concrete arch bridge. When the Kentucky Department of Transportation decided to four-lane U.S. 41A, a new bridge was needed. A temporary run-around or shoo-fly was also required to bridge over the highway in order for it to remain open to traffic during construction. The permanent bridge consisted of a two span structure carrying a single track. The two 53 foot spans were supported by welded steel plate girders measuring 47 inches deep. The reinforced concrete deck accommodated a trough for the ballasted track and sidewalks on both sides. The substructure units consisted of vaulted breastwall abutments and a solid concrete pier. The live load was for Coopers E80. The temporary bridge was an eleven span structure made up of timber pile bents and steel and timber stringers. The deck was an open type with ties supported by the stringers. Plans were completed in 1977 and construction was completed in 1979. The cost of the combined permanent and temporary bridge was $715,000.

The Consultant was responsible for: The Department was responsible for:

1. Complete design and details for the structure. 1. Field surveys.

2. Specifications and cost estimates. 2. Geotechnical data.