Erosion control barrier

Abstract

An erosion control roll including an elongate core member defining an interior space, being open at both ends, and having openings along its length, a pervious filter member open at both ends and surrounding the elongate core member; and, an apron disposed on the upstream side of the pervious filter member, said apron running the length of said filter member, and extending a predetermined distance therefrom.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] The present application claims the benefit of the filing date of U.S. Provisional Patent Application Ser. No. 60 / 628,430, filed Nov. 16, 2004 (Nov. 16, 2004).STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] Not applicable. REFERENCE TO A MICROFICHE APPENDIX [0003] Not applicable. TECHNICAL FIELD [0004] The present invention relates generally to soils erosion control barriers, and more particularly to an erosion control barrier in which water runoff is diverted via the barrier to a remote point of discharge. BACKGROUND INFORMATION AND DISCUSSION OF RELATED ART [0005] Controlling soil erosion, such as erosion on slopes at construction sites, and particularly control of the sedimentation and debris carried in fluid flow on slopes is a continuing problem. Fiber rolls (also known as wattles) are the current industry standard for use in controlling erosion. Fiber rolls are typically made of fibrous materials such as stra...

AI Technical Summary

Benefits of technology

"The present invention is an improved erosion control barrier that reduces soil erosion caused by water flowing to, over, and underneath the barrier. It includes a walled elongate core member with one or more openings in the wall communicating the interior space with the exterior of the core member. The outer, pervious filter member includes an apron which is affixed to the filter member along its length, and includes means to secure the apron upstream of the elongate core member, so as to cover the ground adjacent the core member. Fluids passing through the pervious outer filter and through the openings in the wall of the elongate core member are carried by the core member to discharge points at the end of the core member. The invention can be used in conjunction with a silt fence deployed in abutting relationship to the control roll. The stakes used in the deployment of the silt fence serve the secondary purpose of providing additional stabilization for the control roll. The invention provides runoff water diversion and filtering, reduces soil erosion around, underneath, and downstream of the barrier, and filters water differentially, depending on the materials suspended in the water, the amount of sedimentary deposit around the roll, and the water depth adjacent the roll."

Problems solved by technology

Controlling soil erosion, such as erosion on slopes at construction sites, and particularly control of the sedimentation and debris carried in fluid flow on slopes is a continuing problem.

However, most regulatory agencies now discourage the use of silt fences alone due to the propensity for silt fences to collapse from high fluid flows and high winds.

However, fiber rolls are deficient in their ability to direct fluid flow in a controlled manner.

Moreover, numerous fiber rolls are generally required due to their inherent deficiencies in directing fluid flow as the flow proceeds down a slope.

Specifically, although each of the patents show improved barriers to intercept and divert water away from the barrier, there remains a problem with soil erosion in the area adjacent and around, underneath and downstream of the erosion rolls caused by water flowing to, over and underneath the rolls.

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