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Starbird Rd over I-5

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

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

Starbird Rd over I-5 in Skagit 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 1972, making it 53 years old at the 2025 inventory.
It carries about 1,537 vehicles a day (traffic count year 2021).
Its listed owner is the state highway agency.
It is one of 101 of the 256 inventoried bridges in Skagit County rated good (39.5%); 6 (2.3%) 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 prestressed concrete stringer or multi-beam girder
Length	about 362 ft
Location	0.9 N Snohomish Co
NBI structure number	0009260A0000000
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 Skagit River	1955	39,245	Fair
I-5 over RR and Cameron Way	1954	37,729	Fair
I-5 over SR 20 BNSF RR & City St	1955	37,394	Good
I-5 over I-5 Drainage	1970	36,919	Good
I-5 over I-5 Drainage	1972	35,558	Fair
I-5 over Hill Ditch	1957	33,686	Fair