Welcome to the UTC's Pipeline Safety Map Viewer.

The Pipeline Safety Map Viewer displays pipeline locations for individual counties in the state of Washington. The pipelines displayed here include hazardous liquid pipelines and high-pressure natural gas pipelines (>250 psig). The map viewer includes ownership of the system and other general information. It does not contain gathering or distribution pipelines, such as lines that deliver gas to a customer's home. Pipelines of this type are not  displayed on the map.
Please note that the viewer limits the scale of pipeline maps, in accordance with the National Pipeline Mapping System (NPMS) security policy. Pipeline features will not display when the viewer is zoomed in closer than a 1:24,000 scale (approximately 0.2 miles on the scale bar).

To view the pipeline routes, select a county below.
Information displayed on these maps is for general purpose only and does not provide accurate information for locating the pipeline, or other utilities such as power cable or lower pressure gas distribution pipelines. The data provided should never be used as a substitute for calling 811 prior to excavation activities. Please call 811 before any digging occurs.