Skip to main content
close

KingCounty.gov is an official government website. Here's how you knowexpand_moreexpand_less

account_balance

Official government websites use .gov

Website addresses ending in .gov belong to official government organizations in the United States.

lock

Secure .gov websites use HTTPS

A lock lock or https:// means you've safely connected to the .gov website. Only share sensitive information on official, secure websites.

Project documents

Find a variety of project documents such as environmental checklists and translated materials.

Please also visit the Public engagement page to view materials and information shared at meetings; project updates are posted on the home page.


Enviromental documents

Coal Creek Trunk Upgrade Project

Coal Creek Trunk Maintenance Hole 25B Protection Project

expand_less