Topic Results: Flow Devices

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Beaver Exclusion-Turtle Passage & Reptile Exclusionary Fence Concept Designs: Literature Review and Field Testing

The purpose of this research was to assess whether there is an integrated approach to providing both turtle passage and beaver exclusion from drainage culverts on highways managed by the Ministry of Transportation.

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Billerica Municipal Beaver Management Program Analysis, 2000 – 2019

This landmark 20 year study compares traditional lethal beaver control versus nonlethal management methods in the town of Billerica, MA. A total of 55 beaver conflict sites were studied. Sites that were managed with nonlethal control methods cost taxpayers significantly less than sites that were managed with beaver removal, and provided millions of dollars of ecological services to the town annually that would have been lost with beaver removal.

The Beaver Restoration Guidebook, Version 2.01, 2018

This guidebook provides a practical synthesis of the best available science for using beaver to improve ecosystem functions. The overall goal is to provide an accessible, useful resource for those involved in using beaver to restore streams, floodplains, wetlands, and riparian ecosystems.

Landowner Resources – The Miistakis Institute

A collection of self-help information and videos for landowners experiencing a beaver conflict.

The Evolution of Flow Devices Used to Reduce Flooding by Beavers: A Review

This review article traced the origin of non-lethal tools used to reduce beaver flooding as far back as the early 20th century.

Solving Beaver Flooding Problems through the Use of Water Flow Control Devices

This paper describes the social and ecological context for current beaver problems, how WFCDs function, gives installation and maintenance tips, and presents results of two surveys that assessed the effectiveness of WFCDs in alleviating beaver flooding problems in Connecticut and Massachusetts.

Tips for non-exclusionary culvert protection structures

The Beaver Patrol (in Juneau, Alaska) developed a culvert protector that allows in-stream movement of larger fish, turtles, and other animals, while preventing beavers from placing larger wood into culverts.

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Flow Device Cost-Benefit Analysis

An analysis from the Pacific Northwest on the relative costs and benefits of flow devices.

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Best Management Practices for Beaver Problems, 2005

A study of 482 flow devices by Beaver Solutions LLC in Massachusetts demonstrated that flow devices are the Best Management Practices for beaver dam flooding problems. Published by the Assoc. of MA Wetland Scientists, 2005.

Beaver Management Flow Device Study 2003

A 2003 landmark study of flow device success rates at 277 beaver-human conflict sites in Massachusetts.

Control of Beaver Flooding at Restoration Projects 2001

Describes alternatives to control undesirable flooding caused by beavers at wetland restoration projects

Getting A-Log: More In Mass. Seek Coexistence With Beavers

WBUR article following Mike Callahan and Beaver Solutions installing a flow device in Millis, MA

How to Build & Install A Flexpipe

A detailed description on how to install a flow device.

Beavers: Wildlife Damage Management Technical Series

The focus of this publication is to provide basic information on beaver ecology, damage, and management.

Modifications to the Clemson Pond Leveler to Facilitate Brook Trout Passage

The Clemson Pond Leveler effectively controls beaver pond flooding but will not pass migrating fish as it is typically installed. This modified design will allow for the passage of fish.

The Clemson Pond Leveler

Educational article on building a Clemson Pond Leveler

DVD Review – The Best Management Practices: Long Term Solutions to Beaver Dam Flooding 2010

A review of “The Best Management Practices: Long Term Solutions to Beaver Dam Flooding 2010”, an instructional DVD for flow devices