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Structures Projects

US Route 20 over the Ashtabula River

The bridge is 1224 feet long and crosses approximately 85 feet above the Ashtabula River in Ohio and its floodplain. Originally designed as an eight-span, steel plate girder bridge the bridge was re-designed as a nine-span, prestressed concrete girder bridge through a Value Engineering Change Proposals (VECP) without sacrificing functionality, durability, or aesthetics. The VECP resulted in savings of approximately $900,000 on the project.

Piers were positioned to avoid the main river channel, wetlands, and a roadway under span 1. Maximum spans are 147 ft. with the first four spans passing through a horizontal curve

Innovative corrosion resistant features include a ‘link slab’ between spans 1 and 2 and redundant expansion joint seals over pier 6. A ‘link slab’ eliminates the need for an expansion joint between span one’s 45” deep type III PCI beams and the 78” deep PCI beams in the remaining eight spans. Additionally, by relocating expansion joints and thermal neutral points, modular expansion dams were replaced with more economical strip seals.