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Sauk Prairie Rd over Sauk River

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

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

Sauk Prairie Rd over Sauk River in Snohomish County, Washington, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 7 (good condition) on the 0-9 scale.
It was built in 2008, making it 17 years old at the 2025 inventory.
It carries about 801 vehicles a day (traffic count year 2018).
Its listed owner is the county highway agency.
It is one of 248 of the 500 inventoried bridges in Snohomish County rated good (49.6%); 20 (4.0%) 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 steel through truss
Length	about 472 ft
Location	0.7 NE Jct SR 530
NBI structure number	088041000000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-5 over 212TH St SW	1963	98,485	Fair
I-5 over 212TH St SW	1963	98,485	Fair
I-5 over 52ND Ave W	1963	98,485	Good
I-5 over 52ND Ave W	1963	98,485	Fair
I-5 over Lowell Road	1950	94,939	Good
I-5 over Lowell Road	1967	94,939	Good