CR 302 Viaduct over Union Pacific Railroad

Butler County, Missouri


Horner & Shifrin provided engineering design, construction observation, materials testing, right-of-way acquisition, and contract administration for improvements to the Industrial Park Bypass Road to build a viaduct over the Union Pacific Railroad. The Industrial Park Bypass has become a significant thoroughfare in the area due to workers accessing their respective businesses in the Poplar Bluff Industrial Park. The project included the construction of a new viaduct over both Union Pacific Tracks. The roadway was designed to match the existing 36′ wide road located on the west side of the tracks. A 135-foot single-span bridge spans the tracks while Mechanically Stabilized Earthen (MSE) walls parallel the tracks to minimize bridge length. Fill was placed to the east and west of the bridge utilizing a 3-to-1 slope (or less) on the sides, and provide a 5% grade for the roadway. The $2.6 million dollar project included a $1.42 million dollar Department of Economic Development Grant (DED), as well as an EDA grant in the amount of $1.0 million dollars. The remaining funds were provided through Union Pacific and In-Kind funding.



Site Size

135 ft., single-span bridge


Poplar Bluff, Missouri

Year Completed


Innovation. Agility.
Reliability. Horner & Shifrin.