Bridge and Culvert Use by Bats in Nebraska

The purpose of the Nebraska Department of Roads (NDOR) Bat Survey Protocol is to meet the requirements of the Endangered Species Act (ESA) of 1973, as amended, specifically concerning the proposed listing of Northern Long-Eared Bat (Myotis septentrionalis) (NLEB). To fulfill these requests, NDOR will evaluate suitable habitat within NDOR bridge and culvert structures, conduct bat surveys, and write biological conclusions regarding a specific NDOR project region concerning bridge or culvert structure repair and/or replacements and potential impact to NLEB. The objective of this study was to identify if bats, including NLEB, are using NDOR bridge and culvert structures, and if they are, what types of structures are being utilized for roosting, in relation to their geographical location and location on the landscape. Bat surveys were performed between April 1st and September 30th 2014-2015 during daylight hours. A total of 280 bridges were surveyed from all eight districts in Nebraska. Implications of bat roosting, including urine staining, bat guano, and day-roosting bats, were found on 20.1% of the bridges surveyed. No culverts had guano, urine staining, or bats present.


  • English

Media Info

  • Media Type: Digital/other
  • Edition: Draft Final Report
  • Features: Appendices; Figures; Maps; Photos; References; Tables;
  • Pagination: 61p

Subject/Index Terms

Filing Info

  • Accession Number: 01733304
  • Record Type: Publication
  • Created Date: Mar 11 2020 5:15PM