June 30, 2015 1:00 pm
by Khalil Jaber P.E., Deputy Director for Engineering, Nebraska Department of Roads; Fouad Jaber P.E., Assistant State Bridge Engineer, Nebraska Department of Roads; Matt Macey P.E., Vice President & Chief Structural Engineer, CDR Bridge Systems.
- Nebraska GRS-IBS with Folded Plate Girders - pdf of presentation by NDOR
- Nebraska GRS-IBS with Folded Plate Girders - pdf of presentation by CDR Bridge Systems
- News, June 30, 2015 - pdf of presentation
Description: In 2014 a rural roadway in Boone County, Nebraska was closed 30 working days to construct the Primrose East Bridge, a Geosynthetic Reinforced Soil-Integrated Bridge System (GRS-IBS). The GRS abutments were built in 15 days including abutment excavation, to support the 58-ft-long single-span modular decked beam superstructure. The four pre-topped folded steel plate girders were erected in just two hours. Closure joints of ultra-high performance concrete (UHPC) completed the deck construction. This presentation described design and construction of the bridge and lessons learned.
Completed GRS abutments
Erecting decked folded plate girder
Placing UHPC in deck closure joints