Performance evaluation of a multi-span GRS–IBS

April 1st, 2019

The I-70 multi-span bridges (Figure 1) over Smith Road in Aurora, Colo., included design methodology changes that were classified as “experimental features,” and, thus, additional project funds were included for evaluation. In order to understand the geostructural performance of the multi-span geosynthetic reinforced soil–integrated bridge system (GRS–IBS), the abutment was instrumented with a vertical chain […]

Read More Edit

FHWA video features GRS–IBS history and construction techniques

October 5th, 2018

A Federal Highway Administration (FHWA) YouTube video showcases the history and construction techniques of the geosynthetic reinforced soil–integrated bridge system (GRS–IBS). The video illustrates how to build a GRS–IBS. It is intended to educate designers, engineers, contractors and inspectors on the fundamentals of the GRS–IBS. The video follows the GRS–IBS Interim Implementation Guide (FHWA-HRT-11-026). The […]

Read More Edit

Final inspection: GRS–IBS bridge in place in 80 hours

June 1st, 2018

The Rhode Island Department of Transportation (RIDOT) began work on the McCormick Quarry Bridge over Warren Avenue in East Providence on Sept. 23, 2016, using a geosynthetic reinforced soil–integrated bridge system (GRS–IBS). According to the Federal Highway Administration and RIDOT, the technique allowed crews to cut the closure time for the bridge from one year […]

Read More Edit

Geosynthetics need to be part of the infrastructure package

June 1st, 2018

In its 2017 Infrastructure Report Card, the American Society of Civil Engineers (ASCE) gave U.S. infrastructure a grade of D+. Not good. The sector report card on American roads faired even worse, earning a D, while TRIP, a national transportation research group based in Washington, D.C., says 32% of major urban American roads had pavement […]

Read More Edit

County Road Association of Michigan honors innovation in GRS–IBS projects

April 12th, 2018

The County Road Association (CRA) of Michigan honored the state’s Midland County Road Commission (MCRC) with three IMPRESS Awards at CRA’s 2018 Annual Highway Conference in March, CRA announced April 10, 2018. IMPRESS Awards recognize county road agencies that demonstrate innovation with special projects in communications, operations and collaboration. “Our county road agencies are 110 […]

Read More Edit

Rhode Island DOT replaces bridge in 80 hours using GRS-IBS technology; releases video

December 5th, 2017

The Rhode Island Department of Transportation (RIDOT) began work on the McCormick Quarry Bridge in East Providence on Sept. 23, 2016, using a geosynthetic reinforced soil–integrated bridge system (GRS-IBS). According to the Federal Highway Administration and RIDOT, the technique allowed crews to cut the construction time for the bridge from one year to 80 hours. […]

Read More Edit

History of geosynthetics use on national forest roads

June 1st, 2017

Introduction The objectives of this article are to document the long history of geosynthetic materials used in the U.S. Department of Agriculture (USDA) Forest Service and other rural roads, to document the many creative and useful ways geosynthetics have been used, and to promote the cost-effective uses of geosynthetics in road projects today, particularly on […]

Read More Edit

WisDOT saves time, reduces delay in bridge replacements

August 29th, 2016

Work on two aging Dodge County bridges is demonstrating the benefits of the Geosynthetic Reinforced Soil–Integrated Bridge System The Wisconsin Department of Transportation (WisDOT) is unveiling replacement work at two Dodge County bridges to showcase a construction technique that simplifies the process and reduces project time. Championed by the Federal Highway Administration (FHWA) for nearly […]

Read More Edit