Our Products At Work in the Field


Concrete Cloth™ GCCM: Erosion Control/Drainage/Runoff


Big Sur, CA
November 17, 2018

Project Overview
A part of Caltrans Highway 1, located in Big Sur, Monterey County, has been closed for 14 months to reconstruct the slope and road damage caused by the Mud Creek landslide. The highway was partially re-opened in July 2018 as a one-lane road while work continues to complete the reconstruction.

The work will continue in 2019 through the wet season to complete the project. John Madonna Construction, from San Luis Obispo, has been using some newer construction techniques and products for this project.

Solution
A typical solution for this type of job is to just cover the infill area with plastic, but Madonna Construction (MC) wanted a more permanent repair for this project, so the company chose Concrete Cloth GCCM to complete multiple projects along the highway. Concrete Cloth GCCM was installed to protect a gravel drainage base along the shoulder of Highway 1 from erosion and water runoff. The material is also being used to reline an existing concrete drainage ditch that was showing signs of deterioration and cracking. The third application of Concrete Cloth GCCM was to redirect stormwater directly to a catch basin. Concrete Cloth CC-5 was selected based on abrasion and hydraulic conditions.

Results
Muller Construction Supply, from San Jose, CA, trained the workers from MC on how to properly install and hydrate the material according to ASTM Guidelines (ASTM D8173-18). Installation took only half of a day with a four-man crew. The MC crew had to temporarily close the one-lane road (that is used for both directions of traffic by a temporary traffic light) once for 10 minutes to hydrate the Concrete Cloth GCCM with a water truck. If the company used other alternatives, then the road would have lasted
longer and occurred several times throughout the repair. These closures would have caused additional traffic issues and safety concerns.

“Concrete Cloth GCCM completed the job perfectly,” said Brian McGovern,
President of Muller Construction Supply.

Concrete Cloth GCCM has been used on Caltrans projects for slope
protection, soil stabilization, drainage channel rehabilitation and armoring
for fire protection.
Concrete Cloth_EC Drainage Runoff_Big Sur_Completed RepairConcrete Cloth_EC Drainage Runoff_Big Sur_Strips CutConcrete Cloth_EC Drainage Runoff_Big Sur_Complete LayoutConcrete Cloth_EC Drainage Runoff_Big Sur_HydratingConcrete Cloth_EC Drainage Runoff_Big Sur_ReliningConcrete Cloth_EC Drainage Runoff_Big Sur_Finished and Hydrating