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Bone Lake Fish Barrier


A new, retrofit grate system is recommended for the front of two fish barriers on Bone Lake to increase flow area and decrease velocities through the overflow system during periods of high water. The current fish barriers are reinforced poured-in-place concrete structures designed to prevent carp movement to adjacent spawning habitat in wetland areas and to prevent migration from other lakes. The major components of the fish barriers include the concrete structure, half round header pipes, filter bed, stop logs, overflow grate, and a trash rack. The experimental design entails a filter bed that conveys water under normal flow conditions and then higher capacity overflow when needed. The intent of this project is to prevent migration of adult Carp during periods of high flows while helping to mitigate clogging and turtle mortality. Plantings will provide for native vegetation and screening between the lake and the roadway.

Program Conservation Partners Legacy Grant Program (Metro)

Status Completed

Dates 02/19/2015 - 06/30/2018

Project Manager Mike Kinney

Grant Recipient Comfort Lake Forest Lake Watershed District

Grant Recipient Type N/A

Primary Funding Source(s) Outdoor Heritage Fund

Grant Amount $20,027

Expended $20,027

Statutory Reference M.L. 2016, Chp. 172, Art. 1, Sec. 2, Subd. 5(K)

Management Unit(s) Public Water

Habitat(s) FGW

Activity Type(s) Restoration/Enhancement

Primary County Washington


Latest Indicator Number of acres enhanced

Target 1 Acre

Measurement 1 Acre