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Utilities, railroad & agreements

Find guidance and expertise for coordinating services for statewide projects and initiatives involving utilities, railroad and agreements. Get the technical guidance and training on agreement development, utility policy and railroad project coordination. Find utility permits and franchise information and resources.

Dig Once - Broadband Utilities

‘Dig once’ is a collaborative approach for broadband utility providers to install conduit and fiber concurrently with highway construction projects.

Highway railroad coordination

Find guidance and support for statewide highway projects that include impacts to railroad companies, railroad crossing safety projects and highway operation improvements and maintenance.

Interagency agreements

Find our frequently updated list of Interlocal Agreements, both in-development and in-effect, in compliance with RCW 39.34.040.

Utilities contacts

Find the region contact for your utility work.

Utility accommodation permits and franchises

Find guidance, required forms and the tools for utilities to apply for an authorization for installation, operation, and maintenance of their infrastructure on the highway right of way.

April is work zone safety awareness month - learn more

1,557 work zone-related crashes

were recorded on state highways in 2025.

542 people were injured

in 2025 due to work zone-related crashes. 

29% increase in fatality collisions

in work zones from 2024 to 2025.