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Extension > Environment > Trees and woodlands > Forest management practices fact sheet: Managing water series > Conveyor belt water bars

Conveyor belt water bars

Best Management Practices (BMPs) can prevent or minimize the impact of forestry activities on rivers, lakes, streams, groundwater, wetlands, and visual quality.

Introduction

Forest roads can be leading sources of nonpoint source pollution. By controlling water runoff, this pollution (mostly sediment) can be reduced. In fact, if water speed and volume can be controlled on the top one-third of the road, erosion problems can be reduced by more than 65 percent. Water bars can slow the velocity of water and divert it into vegetated areas.

Conveyor belts, old snowmobile treads, and similar material can be used instead of soil to build water bars. The material is buried on edge in the traffic surface. It bends over to let vehicles easily pass, but diverts water off of the road. These structures work with most vehicle traffic.

Where used

Conveyor belt water bars can be used where other options would restrict road use. The best locations are active management projects with significant traffic.

Application

When building conveyor belt water bars:

Advantages

conveyor-belt-water-bars

Conveyor belt water bar

Conveyor belt water bars let recreational vehicles use the road or trail more safely than other water bar structures. Conveyor belt water bars are relatively inexpensive because low-cost salvage materials can be used.

Disadvantages

Conveyor belt water bars can be easily damaged by cable or grapple skidders or tracked machines. They work best with trucks, forwarders, and other rubber-tired traffic. They require caution when blading to maintain roads or trails.

Maintenance

Conveyor belt water bars work best with rubber-tired traffic. Tracked machines or skidders dragging loads may tear or pull up the belt. Rough use or substantial traffic may require frequent replacement.

Cooperators
University of Minnesota Extension Service, Minnesota Department of Natural Resources, Minnesota Logger Education Program, Michigan Department of Natural Resources, Michigan State University Extension, and Wisconsin Department of Natural Resources.

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