Washington State Pipeline Basics
There are 27 pipeline companies in Washington operating about 43,000 miles of pipelines. Eighteen of the pipelines carry natural gas and 11 carry hazardous liquids such as gasoline and jet fuel. These pipelines include large-diameter lines carrying energy products to population centers, as well as small-diameter lines that may deliver natural gas to businesses and households in your neighborhood. The energy products carried in pipelines fuel our lives and our livelihoods. They heat our homes and schools, power our industrial base and enable our daily commutes.
Pipelines are a relatively safe method for transporting energy products. Nevertheless, they can and sometimes do rupture, posing serious risk. That's why we encourage everyone in Washington to learn about pipelines and the products they carry, as well as a few simple steps you can take to help ensure pipeline safety in your community.
Mileage Overview
|
| Pipeline Type |
Interstate Mileage |
Intrastate Mileage |
| Hazardous liquid |
721.61 |
73.11 |
| Gas transmission |
1,650.91 |
394.01 |
| Gas distribution / service |
NA |
21,626.02 / 18,533.84 |
| Total pipeline mileage |
2,372.5 |
40,627.0 |
Who operates the pipelines in your area?
The federal Office of Pipeline Safety (OPS) and the National Pipeline Mapping System enable you to find out simply by entering your ZIP Code into a search field. To go to the OPS search page click here.
Different Types Of Pipelines
To learn about the different types of pipelines click here.
Here is more information about pipelines that you may find interesting:
Click on each topic to go to separate pages
Natural Gas Pipeline Systems: From the wellhead to the consumer
Petroleum Pipeline Systems: From the wellhead to the consumer
Pipeline construction
Basics of gas and oil exploration
Technologies of gas and oil exploration
