1. GRS-IBS Demonstration Bridge Project Cochran Road over Turkey Creek Marshall County

2. What is GRS-IBS? Geosynthetic Reinforced Soil(GRS) consists of closely spaced layers of geosynthetic fabric and compacted granular fill that serves here as a bridge abutment The Integrated Bridge System(IBS) consists of an encapsulated granular fill roadway that is blended into the superstructure eliminating open bridge end joints

3. FHWA Every Day Counts Initiative Committee of Federal-State-County engineers including Richie Beyer in 2012 Site selection desired span of 50 feet or less with low scour potential Candidate left over from GARVEE program ultimately selected in June 2012 in Marshall County: Cochran Road over Turkey Creek

4. ALDOT Demonstration Project Objective is to make GRS-IBS understandable and to implement the GRS-IBS technology Develop specifications Monitor during construction Post- construction instrumentation and monitoring by Dr.Dave Elton and grad students at Auburn University

5. Existing Bridge on Cochran Road

6. Upstream Channel-Cochran Road over Turkey Creek

7. Downstream Channel- Cochran Road over Turkey Creek

8. Existing Abutment(typical) Cochran Road over Turkey Creek

17. GRS-IBS Demonstration Project Cochran Road over Turkey Creek Marshall County

18. Interstate 84 Echo Canyon UT

19. GRS Bridge Defiance County OH

21. GRS Tiered Wall Sand Mountain Toyota Albertville AL

22. GRS Wall Wendy’s Guntersville AL

23. GRS Wall Hampton Inn Guntersville AL

24. Pedestrian Bridge/Bike Path Hays Preserve Huntsville AL

25. Pedestrian Bridge/Bike Path Hays Preserve Huntsville AL

27. Questions or Comments?