Feds eye St. Lawrence NY’s cheap, speedy Geosynthetic Reinforced Soil (GRS) bridges

October 7, 2010 rockman Available Resources Comments Off on Feds eye St. Lawrence NY’s cheap, speedy Geosynthetic Reinforced Soil (GRS) bridges
Geosynthetic reinforced soil (GRS) bridge system, Defiance County, Ohio

Geosynthetic reinforced soil (GRS) bridge system, Defiance County, Ohio

New York’s St. Lawrence County DOT has attracted the attention of the FHWA…in a good way. The agency has built 5 Geosynthetic Reinforced Soil (GRS) bridge abutments since last fall, and the sixth will be the subject of a Florida film crew hired by the FHWA. The footage will be shown at various meetings leading up the the creation of a new technical manual on the building of GRS bridge structures which are a cheap and rapidly constructible solution to crumbling bridges in these difficult economic times. [Source: Watertown Daily Times via Geosynthetica.net News. Image: FHWA]

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Image of a sandhog inside the new water supply tunnel number 3 for the City of New York. Photo by History.com. Urban miners have been busy constructing a new water supply tunnel underneath New York City to supply the megalopolis with the water it needs. The miners, or sandhogs as they are known, are about halfway complete with the new tunnel which is expected to be in service by the year 2020. Work on the 60-mile tunnel began in 1970 and the total projected cost is $6 billion and is widely regarded as one of the most complex public works projects in the western hemisphere. When complete, it will help deliver 1.2 billion gallons DAILY to 8 million New Yorkers. The city currently gets its drinking water from two water supply tunnels that were constructed in the early 20th century and have not been inspected or repaired since then. More after the break. (Image credit History.com)

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Seismic Design of Geosynthetic-Reinforced Soil Bridge Abutments with Modular Block Facing
Available Resources

Seismic Design of Geosynthetic-Reinforced Soil Bridge Abutments with Modular Block Facing

April 29, 2012 rockman Available Resources Comments Off on Seismic Design of Geosynthetic-Reinforced Soil Bridge Abutments with Modular Block Facing

Text from TRB: TRB’s National Cooperative Highway Research Program (NCHRP) Web-Only Document 187: Seismic Design of Geosynthetic-Reinforced Soil Bridge Abutments with Modular Block Facing explores design methods and construction guidelines for using geosynthetic-reinforced soil (GRS) […]