MONOGRAPH Robert Stanley* California High-Speed Rail Authority, 770 L Street, Suite 620, Sacramento, CA 95814, USA https://orcid.org/ 0009-0001-2663-9211 *Corresponding Author: robert.stanley@hsr.ca.gov; rbs187@yahoo.com Published 8 October 2026 • doi.org/10.51492/cfwj.112.9 Abstract Transportation facilities such as bridges provide critical roosting habitat for bat species throughout California. This assessment analyzed 607 transportation facilities in Contra Costa County from the … Continue reading Transportation facility assessment for bat use in Contra Costa County