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Table of Contents
Summary
Acknowledgments
Importance and Needs of Bats
Benefits of Bats and Bridges
National Survey Design
Characteristics Bats Prefer
Bats and Highway Structure Temperatures
How to Evaluate Highway Structures for Bat Use
How to Create Bat Roosts in Highway Structures
Mitigation
Commonly Asked Questions
Discussion
Appendices
Appendix I. Bats that Use Bridges and Culverts
Appendix II. Survey Forms
Appendix 3. Retrofitting for Bats
Usefull References
State Survey Results
Ecoregions of the United States