Road ecology blog: Pathway for large mammals in an underpass (bridge) primarily designed for water (stream), US Hwy 93 S, Bitterroot Valley, Montana, USA. Note that the concrete path was easily undercut during high water.

Pathway for large mammals in an underpass (bridge) primarily desPathway for large mammals in an underpass (bridge) primarily designed for water (stream), US Hwy 93 S, Bitterroot Valley, Montana, USA Pathway for large mammals in an underpass (bridge) primarily desPathway for large mammals in an underpass (bridge) primarily designed for water (stream), US Hwy 93 S, Bitterroot Valley, Montana, USA Pathway for large mammals in an underpass (bridge) primarily desPathway for large mammals in an underpass (bridge) primarily designed for water (stream), US Hwy 93 S, Bitterroot Valley, Montana, USA Pathway for large mammals in an underpass (bridge) primarily desPathway for large mammals in an underpass (bridge) primarily designed for water (stream), US Hwy 93 S, Bitterroot Valley, Montana, USA Pathway for large mammals in an underpass (bridge) primarily desPathway for large mammals in an underpass (bridge) primarily designed for water (stream), US Hwy 93 S, Bitterroot Valley, Montana, USA

Click here for images of wildlife fencing.

Click here for images of multifunctional underpasses.

Click here for images of wildlife underpasses.

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