Sumner Buckley Hwy over Cwa Canal

Pierce County, Washington · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

• Sumner Buckley Hwy over Cwa Canal in Pierce County, Washington, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
• Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
• It was built in 1978, making it 47 years old at the 2025 inventory.
• It carries about 2,675 vehicles a day (traffic count year 2020).
• Its listed owner is the county highway agency.
• It is one of 267 of the 480 inventoried bridges in Pierce County rated good (55.6%); 22 (4.6%) are rated poor.
• A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

View this bridge on a map → (47.17202, -122.05881)

Component ratings

Bridge details

Source: FHWA National Bridge Inventory, 2025 data as reported by the Washington department of transportation.

Busiest bridges in Pierce County

All bridges nearby: Pierce County, WA bridge conditions · every bridge in Pierce County · Washington bridges.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.