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I-5 NB Off Ramp over Mill Plain Blvd

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

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

I-5 NB Off Ramp over Mill Plain Blvd in Clark 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 1979, making it 46 years old at the 2025 inventory.
It carries about 6,976 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 118 of the 219 inventoried bridges in Clark County rated good (53.9%); 10 (4.6%) 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	Prestressed concrete single box beam
Length	about 211 ft
Location	0.7 N Jct SR14
NBI structure number	0011193D0000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-205 over SR 14 Bnrr	1982	160,000	Fair
SR 500 over NE Gher Rd & NE 112 Ave	2004	65,414	Fair
I-5 over Columbia River	1916	65,013	Fair
I-5 over Columbia River	1958	65,013	Fair
I-205 over Burton Rd	1974	59,900	Fair
I-205 over Burton Rd	1974	59,900	Fair