Some new features of the current IDEA site are not supported in Internet Explorer 11.

Therefore, please view the site in one of these modern web browsers:

Google Chrome, Microsoft Edge, Firefox, or Safari.

Statewide Summary

Washington 2024-2025 IDEA /
Statewide Summary /
Inventory Age Summary /
NPIAS Airports /
Pavement Age by Branch Use and Planning Organization Table

NPIAS Airports – Pavement Area-Weighted Age by Branch Use and Planning Organization Table

Loading