Geofoam provides lightweight fill for York Bridge in Washington

August 1, 2006

A King County DOT bridge project illustrates the use of geofoam fill. Abstract An interesting project under way in the Seattle area is the reconstruction of the York Bridge on Northeast 116th Street north of Redmond, Wash. After the supports for the new bridge were completed, crews worked on the deck and approach roadways using …

Hereford Inlet seawall repair project

Marine mattresses on the seawall in New Jersey. North Wildwood, N.J. Location: Hereford Inlet is located on the New Jersey coastline, near the southeasternmost tip of the state, near Cape May. Application: This project involved reconstructing the inlet’s shoreline seawall (Photo 1). Portions of the structure were undermined by tidal scour and storm erosion. Failure …

Designing for geoelectrical liner integrity and leak-location surveys

What to look for (and to look out for!) when designing lining systems for electrical integrity/leak-location surveys. By Ian D. Peggs As the need to perform geoelectrical liner integrity (for CQA) and leak-location (problem resolution) surveys becomes more of a regulated requirement, it becomes more necessary to design lining systems so that single and primary …

Geotube dewatering containers help in cleanup of the Fox River

Cleansing the Fox: Decades of PCB contamination in Wisconsin’s lower Fox River will take decades to clean up. Today, geotextile dewatering containers are helping with that job at the Fox’s Little Lake Butte des Morts The largest river cleanup project ever attempted in North America is using geotextile tubes as a key component in the …

Shoreline restored with geotextile tubes as submerged breakwaters

June 1, 2006

Back to the beach in Mexico. By Enrique Álvarez, Ramiro Rubio, Herbert Ricalde Abstract The beaches of the northern coast of Yucatan in Mexico have been in an erosion process that has dramatically increased in the past 15 years. Changes in the littoral dynamics, mainly due to human action, have generated a coastline regression rate, …

TRM triumphs in California water-harvesting project

Turf reinforcement mat to the rescue in Riverside County. Master Drainage Plan, Line E, San Jacinto Basin This project had been planned to capture stormwater and excess agricultural flows during the Southern California rainy season, then reuse this water to replenish the area’s groundwater basin during times of drought. The 50-ft.-wide x 8,000-ft.-long, 12-ft.-deep channel …

Ground rules

The imagination of the designer and the skills of the engineer combine for unique geosynthetics applications, from subsurface to rooftop. By Andrew Aho Geosynthetic materials entered the marketplace during the last third of the 20th century, and since then have increasingly become a staple for landscape architects and designers. By incorporating the creative use of …

Selecting reinforced fill soil for MSE retaining walls

A full-scale field test is currently being conducted to establish properties for “high fines” reinforced soils and associated design controls that give acceptable MSE wall performance. By Richard P. Stulgis Mechanically Stabilized Earth (MSE) retaining walls on public sector transportation projects are generally conservatively designed with “low fines” reinforced soils. Private MSE walls are less …

Geosynthetics: Update from Korea

The infusion of geosynthetics in Korea has been accomplished in a relatively short time. A look at potential growth, research, and markets. By Han-Yong Jeon 1. Introduction The geosynthetics industry in Korea is a promising field for investment and development. Many types of domestic geosynthetic products are produced and their applications and end uses are …

GCLs used for airport runways in France, containment at gold mine in Saudi Arabia

Master Drainage Plan, Line E, San Jacinto Basin One of the largest infrastructure projects in Europe in recent years has been in Toulouse, France, at the Toulouse-Blagnac Airport and the adjacent Airbus-France facility where the new Airbus A-380s are built. During the course of this construction project, hangars were built to house the wide-bodied A-380 …