Geotextile filtration clogging resistance

February 1st, 2022

Q: I have a question about the Filter Criteria in the Federal Highway Administration (FHWA) procedure "Filter Performance and Design for Highway Drains" procedure, specifically the geotextile filtration clogging resistance equation 2-10. This seems to require a particularly large pore size; for example, if the D15 of the soil was for 70 microns, the minimum […]

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FHWA Targeted Overlay Pavements Solutions team to host webinar Jan. 24

January 21st, 2022

Photograph courtesy of Federal Highway Administration The Targeted Overlay Pavement Solutions (TOPS) Every Day Counts team of the Federal Highway Administration (FHWA) will host its first concrete overlays webinar on Monday, Jan. 24, 2022, from 1:30 to 3 p.m. EST. Participants will hear about challenges and possible solutions, how to determine value, how to get […]

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DOT announces historic bridge investment under Bipartisan Infrastructure Law

January 17th, 2022

More than $27 billion to states and tribal transportation facilities to fix an estimated 15,000 bridges nationwide Bridge at Overpeck Park in Bergen County, N.J. The DOT bridge guidance notes that federal funds can be used for 100 percent of the cost of repairing or rehabilitating locally owned bridges. Photograph by FeldBum. Creative Commons License: […]

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FHWA delivers largest federal highway apportionment in decades as part of infrastructure law funding

December 17th, 2021

The Arizona Department of Transportation used geosynthetic reinforced soil–integrated bridge system (GRS–IBS) technology to accelerate replacement of the Interstate 40 bridge at Meteor City Road, 15 miles (24 km) west of Winslow in northern Arizona. Photograph courtesy of FHWA The U.S. Department of Transportation’s Federal Highway Administration (FHWA) announced Dec. 15, 2021, that it is […]

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Getting the most out of GeoNashville 2021 and looking toward 2023

October 1st, 2021

Downtown Nashville. Photograph courtesy of Crackerclips, ID 81868104, Dreamstime.com GeoNashville, Nov. 4–5, 2021, at the Music City Center in Nashville, Tenn., is just around the corner. This face-to-face geosynthetics event brings attendees together for 1.5 days of plenary presentations and panel discussions from the Federal Highway Administration (FHWA), U.S. Army Corps of Engineers (USACE), Federal […]

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FHWA proposes more flexible design standards to repair the nation’s freeways and interstates

November 27th, 2020

The Federal Highway Administration (FHWA) published a Notice of Proposed Rulemaking (NPRM) to allow state departments of transportation more flexibility with design standards to repair the nation’s freeways and interstate highways. “The FHWA proposes to provide regulatory relief to states to address the immediate repair needs of our nation’s roadways without compromising safety and efficiency,” […]

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Christopher honored with 2018 Koerner award and lecture series

February 1st, 2019

The Geosynthetic Materials Association (GMA), led by a Koerner awardee selection task force, chose Barry R. Christopher, Ph.D., P.E., as the recipient of the 2018 Robert M. Koerner Award and Lecture Series. The award and lecture series is named for Robert M. Koerner, Ph.D., the founder and director emeritus of the Geosynthetic Institute and professor […]

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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 […]

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Barry R. Christopher honored with 2018 Koerner award and lecture series

September 11th, 2018

The Geosynthetic Materials Association (GMA), led by a Koerner awardee selection task force, selected Barry R. Christopher, Ph.D., P.E., as the recipient of the 2018 Dr. Robert M. Koerner Award and Lecture Series. The award and lecture series is named for Dr. Robert M. Koerner, Ph.D., the founder and director emeritus of the Geosynthetic Institute […]

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Panorama

August 1st, 2018

Tensar arranges Australian distribution for mining geosynthetics Tensar International announced June 15, 2018, that Chris Taylor of C&C Taylor Enterprises (CCTE) has agreed to become the exclusive distributor agent for Tensar Underground Mining Products in Australia. For more than 40 years, Taylor has worked in various mining industry roles, from the shop floor to director, […]

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