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Arcadia Rd. over Mill Creek

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

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

Arcadia Rd. over Mill Creek in Mason 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 1971, making it 54 years old at the 2025 inventory.
It carries about 879 vehicles a day (traffic count year 2024).
Its listed owner is the county highway agency.
It is one of 77 of the 136 inventoried bridges in Mason County rated good (56.6%); 4 (2.9%) 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.

Component ratings


Structure	Continuous concrete stringer or multi-beam girder
Length	about 180 ft
Location	4.72 E Jct SR 3
NBI structure number	083408000000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 101 over Mill Creek	1973	19,397	Good
US 101 over Creek/rr/street	1973	18,182	Fair
US 101 over Matlock Rd	1973	18,182	Poor
SR 3 over Goldsborough Creek	1923	17,285	Fair
US 101 over SR 3	1972	17,050	Fair
SR 3 over Deer Creek	1957	15,878	Good