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SR 504 over N Fk Toutle River

Cowlitz County, Washington · rated Poor in the 2025 National Bridge Inventory

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

SR 504 over N Fk Toutle River in Cowlitz County, Washington, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1965, making it 60 years old at the 2025 inventory.
It carries about 955 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 6 of the 161 inventoried bridges in Cowlitz County rated poor (3.7%); 6 (3.7%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Continuous steel stringer or multi-beam girder
Length	about 493 ft
Location	2.6 E Jct SR 505
NBI structure number	0007631A0000000
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
I-5 over Bn Ry	1972	37,599	Fair
I-5 over Kalama River	1971	37,279	Good
I-5 over Kalama River	1970	37,279	Good
I-5 over Owl Creek	1972	36,932	Good
I-5 over Owl Creek	1972	36,932	Good
I-5 over Todd Rd	1971	35,483	Good