Geosynthetic Reinforced Soil: Integrated Bridge System (GRS-IBS)

US Transportation Collection2018PDFTech ReportAbernathy, CraigMontana. Department of Transportation. Research ProgramsMontana. Department of Transportation. Research ProgramsMontanaBridge constructionGeosyntheticsGeotextilesIntegrated systemsSoilsMT-12-04STPP NHTSA 3-3(23)65This report documents the performance of Geosynthetic Reinforced Soil (GRS) Integrated Bridge system (IBS) technology, which was used to build a bridge at the South Fork Dry Fork Marias River crossing in Montana. GRS-IBS is a system that uses alternating layers of granular fill material and geotextile sheets to create a composite reinforcement to support the bridge slab. The installation was inspected regularly for five years, examining the integrity and any other visually measurable outcomes. Location: Highway 89 (P-3/C000003), Pondera County-South Fork Dry Fork Marias River Crossing125