Stan’s Beaver Baffler device is recommended instead of flow pipe devices because:
- Flow pipe devices are difficult to install in deep water utilizing long 20–40-foot pipes with remote water intakes. They also constrict or totally block fish/wildlife passage.
- SBB is easily installed in shallow water using livestock panels and provides fish/wildlife passage.
Five Key Features of the SBB work together to create a device that is easy to install and provides fish/wildlife passage.
- An elongated lane fence (12-24 foot long and 3-4 foot wide) is oriented upstream.
- The device is installed in shallow water (1-2 feet).
- An integral skirt (8-14”) is incorporated as part of the lane fence device.
- Materials needed are readily available, livestock panels, steel T-posts, and T-post fence clips or rebar wire.
- Fish/wildlife passage is provided for both culvert and pond leveler versions.
- Culvert version – Incorporates short 2–4-foot wings on both sides of the culvert.
- Pond leveler version – Extends the lane fence past the dam notch a short distance (1-2 feet) and leaves the lower downstream end of the device open.
Feature 1. Elongated Lane Fence
How-A simple lane fence is oriented upstream. The structure is 3-4 feet between the fences with a length of 12-24 feet. The elongated lane fence is also pointed at the upper end.
Why an elongated fence is explained. link
Feature 2. Install SBB in Shallow Water.
How– When there is a choice, install the lane fence in water that is 1-2 feet deep. The lane fence does not need to be built in a straight line, it can be curved or angled to follow a stream channel, or near the shore of a beaver pond to take advantage of shallow water.
Why install in shallow water is explained. link
Feature 3. Incorporate an Integral Skirt
How-Create an integral skirt on the outside of the lane fence. The skirt is created by bending a 4-foot panel into a 12-14 inch skirt and 3-foot high fence.
Why create an integral skirt is explained. link
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