What is a GeoWeb System
The GeoWeb system is an environmentally friendly alternative to paving. The system is comprised of polyurethanes cells, called GeoBlocks, which hold gravel and are covered with 2 inches of gravel strong enough to support fire trucks. Also, GeoBlocks create a structure that can use less expensive fill material, such as sand and pit-run gravel. Applications of GeoWeb systems can help support roadways, porous pavements, parking lots, boat ramps, low level stream crossings, spread footing for retaining walls, stabilization for sewer lines, and stabilizing drainage layers.
PCEI GeoWeb Parking Lot
When asked to pave their parking lot by the City of Moscow, PCEI wanted to show the town alternatives to pavement. The GeoWeb was installed in September 2005 by PCEI volunteers, and construction of the parking lot took about one week. The striping of parking stalls came later with grass planted into the GeoBlocks. The lot has become a demonstration of a sustainable alternative to asphalt for paving surfaces.
Advantages of GeoWeb
GeoWeb has been used to help maintain structural and landscape integrity and has succeeded in significantly reducing landslides in certain areas. GeoWeb can be used in parking lots to help strengthen structural fill, control lateral movement of in-fill material, and minimize ruts in the surface. GeoBlocks are very porous which allows for maximum groundwater replenishment and minimal surface runoff. The use of GeoBlocks is also less expensive than standard asphalt, which makes this a cost effective alternative to pavement. GeoWeb may be used for construction of sustainable retaining walls, slope support, and water channel anti-erosion support.