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Bia Rte 80940 over Black River Overflow

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

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

Bia Rte 80940 over Black River Overflow in Grays Harbor 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 1978, making it 47 years old at the 2025 inventory.
It carries about 500 vehicles a day (traffic count year 2021).
It is one of 188 of the 371 inventoried bridges in Grays Harbor County rated good (50.7%); 31 (8.4%) 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 single box beam
Length	about 49 ft
Location	1.3KM West of Jct 8049
NBI structure number	0000P06105T1631
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 101 over Chehalis River	1955	26,216	Poor
US 12 over Camp Creek	2024	23,177	Good
US 12 over Wynoochee River	1935	21,466	Poor
US 12 over Unnamed Tributary	2018	21,466	Good
US 12 over Wishkah River	1925	16,009	Poor
US 12 / Heron St over Wishkah River	1949	14,965	Poor