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TOPS Webinar – Concrete Over Asphalt Bonded Overlays – August 30
August 27th, 2022
You’re invited to join the FHWA Targeted Overlay Pavement Solutions (TOPS) Every Day Counts team for a webinar highlighting concrete over asphalt bonded (COA-B) overlays. The webinar is August 30 from 1:30 p.m. to 3:00 p.m. ET and you can register here. Hear success stories from Colorado DOT, where concrete overlays often last 10 years […]
Reinforced soil wall with geogrids
August 1st, 2022
FIGURE 1 Geographic location of the study area. Photo: Google Maps Mechanically stabilized earth walls (MSE) are containment structures that have gained considerable popularity over the last few years due to their various benefits: constructive, environmental and economic. There are several types of reinforced earth walls, which vary according to the type of material used […]
Geosynthetics Conference 2023 short course lineup announced
April 1st, 2022
Jie Han, the Glenn L. Parker Professor of Geotechnical Engineering at the University of Kansas, delivers the Dr. Robert M. Koerner Lecture at GeoNashville in Nashville, Tenn., Nov. 4, 2021. Photograph courtesy of Mark Skalny/Mark Skalny Photography The Geosynthetics Conference 2023, Feb. 5–8, 2023, in Kansas City, Mo., will host six half-day short courses on […]
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 […]
GeoNashville 2021 is a success
February 1st, 2022
Silas C. Nichols, P.E., principal geotechnical engineer with the Federal Highway Administration (FHWA) Office of Infrastructure, speaks about “Transforming Transportation Geotechnics with Geosynthetics" at GeoNashville. Photograph courtesy of Mark Skalny/Mark Skalny Photography Geosynthetics professionals from across North America gathered in Nashville, Tenn., in November as the industry returned to in-person events. GeoNashville 2021, Nov. 4–5, […]
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 […]
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: […]
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 […]
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 […]
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,” […]