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 …

TRM triumphs in California water-harvesting project

June 1, 2006

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 …

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 …

Shoreline restored with geotextile tubes as submerged breakwaters

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, …

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 …

A garden grows on a Minneapolis rooftop

April 1, 2006

Architects, designers, and new geosynthetics build a high-rise green space. By Mason Riddle There is mesh and then there is mesh. For a downtown Minneapolis 10-story penthouse, the proper mesh was critical to the installation and maintenance of a rooftop garden and terrace, which, like the owner’s living quarters, affords impossibly spectacular views of both …

Berm is working on the railroad

Geosynthetic solution offers both separation and reinforcement for this Canadian rail project. Canadian Pacific Railway (CPR) is renowned for building rail lines through some of North America’s toughest terrain. Just west of Kenora, Ontario, near the Manitoba/Ontario border, the main CPR track crosses the Telford Marsh, an area of weak organic soil. A 250 m …

Rejuvenated reservoir will irrigate world-famous golf courses

More than 21 acres of geomembrane help revive Pebble Beach’s Forest Lake Reservoir. Originally constructed in the late 19th century, a reservoir near a scenic stretch of California coastline underwent a dramatic transformation last year, and is now poised to serve the irrigation needs of the 21st century Pebble Beach community. Located on California’s beautiful …

Projects highlight progressive uses of geosynthetics

A problem-solving wall project in Michigan and preserving Stump Pass in Florida highlight two more progressive uses of geosynthetics. First section by Jacob Manthei, second section by Jeff Barbian and Ron Bygness Retaining wall, utilities merged in Michigan Developers and engineers have long tackled the problems with hilly building sites and are ever in search …