Skip to content U.S. Department of Transportation/Federal Highway AdministrationU.S. Department of Transportation/Federal Highway Administration
Office of Planning, Environment, & Realty (HEP)

Wildlife Protection

Keeping It Simple: Easy Ways to Help Wildlife Along Roads

Photo Gallery for Angled Bars in Cave Gate Ease Travel for Bats

Photo of bars across front of cave
MODOT photo
The bars block access to the cave by humans, but bats can navigate in and out freely.

close-up of angled bars installed in cave entrance
MODOT photo
The angled bars are more easily detected by the bats' sonar.

Updated: 12/12/2012
HEP Home Planning Environment Real Estate
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000