A trench in the right-of-way for underground utility lines and cables.
Notice to utilities about 2023-28 proposed culvert replacement projects
Why the culvert replacements occur
Each year Road Services identifies drainage structures throughout King County that are in need of repair or replacement. Due to current design standards or permit requirements, some of these structures may need to be replaced with much larger pipes or box culverts.
Proposed culvert replacement projects map
About the map
We are providing a map of the larger proposed drainage projects currently anticipated for construction to give advance notice to utility companies with facilities located within the road right-of-way. This will give utilities time to budget and prepare for any relocation required. Included with the map is a table identifying the approximate size of the replacement structure, the location, and the county tracking number. Since many of these projects are still in design phase, the actual size may vary from what is shown.
The map is not all-inclusive and provides a listing of only those projects currently planned for construction. Emergency projects may still occur without notice. New projects may be identified, and some projects may not be completed due to scheduling conflicts, budget considerations, or other issues.
If your agency has facilities in the right-of-way at any of these locations, you may be affected. If there is a utility conflict with a county road project, you will be required to relocate your facilities pursuant to your franchise or other agreement.