Home › Washington › Skagit County › Lake Samish Rd over I-5

Lake Samish Rd over I-5

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

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

Lake Samish Rd over I-5 in Skagit County, Washington, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1963, making it 62 years old at the 2025 inventory.
It carries about 3,250 vehicles a day (traffic count year 2012).
Its listed owner is the state highway agency.
It is one of 149 of the 256 inventoried bridges in Skagit County rated fair (58.2%); 6 (2.3%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 344 ft
Location	9.7 N Jct SR 11
NBI structure number	0007260C0000000
Condition class	Fair

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