The Construction Site (tm)

The Construction Site ^(tm)

The above photo is of a sand/cement bag revetment with an attached anti-scour apron. The apron is designed to help protect the revetment (bulkhead) against underscour, a common cause of bulkhead failure.

The apron bags are placed on a geotextile fabric and are attached to the revetment foundation bags using a polypropolyene cord. The cord is specially treated for protection against ultra violet rays when exposed to the sun. The cord is impaled into each of the apron bags with a special tool. After the bags are hard, through the process of hydration, the apron is then free to flex downward, in the event scouring starts to occur.

The foundation bags are secured in place with steel rebar. The revetment bags are secured one to the other with dowell pins.

The sand/cement bags are designed specifically for erosion control purposes. Substitutes are not recommended for most applications. The bags are two ply, paper bags (biodegradable) with a polyester scrim reinforcement in between the two plys. The contents of the bags consists of a special mix of silica sand and cement mixed to specific standards as required by job-site data.

The system is approved by most government agencies for construction in most all bodies of U.S. waters The U.S. Army Corps of Engineers, Galveston, Texas district, has accepted the system as a standard application and approved it for use in Lake Houston, a drinking water source lake.

The system can be built by do-it-yourselfers, but is not recommended as a practice. It is best to use an experienced contractor, or in the absence of the latter, use a qualified consultant. There are many aspects of the design and construction that are not addressed in this article.
Your online contractor/consultant is Erosion Technology (281) 324-2283.

Erosion Technology is set up to provide you with step by step instructions, online drawings, and other photos to walk you through the construction from beginning to the finished product.