USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Research Report and Findings: Specifications and Guidelines for Rail Tunnel Inspection and Maintenance (Report 0236)

Document

This report summarizes current rail tunnel maintenance and inspection practices, including requirements, frequency, techniques, documentation, and tunnel rating criteria.

Last updated: Wednesday, November 16, 2022
DOT is committed to ensuring that information is available in appropriate alternative formats to meet the requirements of persons who have a disability. If you require an alternative version of files provided on this page, please contact FTAWebAccessibility@dot.gov.