Tunnel Management
National Tunnel Inspection Standard (NTIS)
- Supporting documents for the Supplemental Notice of Proposed Rulemaking (SNPRM) on the National Tunnel Inspection Standards (07/30/2013)
- Draft Specifications for the National Tunnel Inventory (.pdf, 1.3 mb)
- Draft Tunnel Operations, Maintenance, Inpection and Evaluation (TOMIE) Manual (.pdf, 19 mb)
- NTIS Preliminary Inventory Data Form (.pdf, 0.5 mb)
- Notice of Proposed Rule Making on National Tunnel Inspection Standard (07/22/2010)
- Advanced Notice of Proposed Rule Making on National Tunnel Inspection Standard (11/18/2008)
Publications
- Highway and Rail Transit Tunnel Inspection Manual
- Highway and Rail Transit Tunnel Maintenance and Rehabilitation Manual
Tunnel Inventory
- Highway Tunnel Inventory Summary - based on 2003 survey with 2008 interim update
Software
- Tunnel Management System (.zip, 121 mb)

