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.

Site Notification

Site Notification

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

Improved Tools to Locate Buried Pipelines in a Congested Underground 693JK31810009

The project developed and validated a geospatial probe to map existing buried utilities through insertion into live gas pipelines. The resulting technology transfer led to the Live Gas Mapper (LGM-2) tool by REDUCT. The LGM-2 can map buried live gas pipes with an ID range of 50mm up to 100mm (2" to 4"). From a single hot tap entry point it can map a gas pipe up to 300 meters/1,000' length in each direction, thus capturing data and the geographical location of 600 meters/2,000' of live gas pipe.

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
Last updated: Friday, July 29, 2022