MagnumStone Geogrid Wall Reinforces Stream Bank
An old failing bridge was removed in Dudley, PA, with new retaining walls necessary to rehabilitate its stream bank. This would maintain the integrity of the adjacent residential driveway too, a perfect multi-purpose application for MagnumStone’s retaining wall system. The civil engineer specified a large precast block system for the project (in lieu of smaller segmental blocks) because they were concerned about potential scour issues during high water events.
Precast Blocks Protect Against Erosion
The stream was rerouted through a large HDPE pipe during wall construction. The wall’s foundation area had to be dewatered continuously with a pump until the MagnumStone blocks were above groundwater level. Geogrid and #57 stone was used for the reinforced zone of the wall. A safety fence and guard rail were placed at the top of the wall for pedestrians and vehicles. Rip-rap, boulders at the toe of the wall, were also added to protect against erosion and strong waterflows. Total wall area installed was 1,014 sq. ft. (94 sq. m.).
Learn more about MagnumStone’s stormwater management and erosion control retaining wall designs here. For comprehensive retaining wall solutions, plan your next project with MagnumStone’s Retaining Wall Design and Analysis Software.
Photos: York Building Products
