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Bridge conditions in Grays Harbor County, Washington

371 inventoried bridges · 31 rated poor · 2025 National Bridge Inventory

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

31 of the 371 bridges the federal inventory lists in Grays Harbor County are rated poor; the rest split 188 good and 152 fair.

31 of the 371 bridges in Grays Harbor County, Washington, are rated in poor condition (8.4%) in the 2025 National Bridge Inventory, as of August 20, 2026.
188 bridges (50.7%) are rated good and 152 (41.0%) fair.
The median Grays Harbor County bridge was built in 1976.
The busiest poor-rated bridge is US 101 over Chehalis River (built 1955), carrying about 26,216 vehicles a day.

Good 50.7% · Fair 41.0% · Poor 8.4% of 371 bridges

Bridges rated poor

Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.

Bridge	Built	Vehicles/day	Condition
US 101 over Chehalis River	1955	26,216	Poor
US 12 over Wynoochee River	1935	21,466	Poor
US 12 over Wishkah River	1925	16,009	Poor
US 12 / Heron St over Wishkah River	1949	14,965	Poor
US 101 over Hoquiam River	1970	13,233	Poor
US 101 over Hoquiam River	1928	12,765	Poor
SR 12 over Satsop River	1965	11,589	Poor
US 12 over SR 107 RR Flood Plain	1969	8,382	Poor
Pioneer Ave W over Sylvia Creek	1935	3,626	Poor
Ocean Beach Road over Humptulips River Overflo	1964	3,234	Poor
Ocean Beach Road over Humptulips River Overflo	1966	2,633	Poor
Ocean Beach Road over Berg Slough	1964	2,622	Poor
Ocean Beach Road over Copalis River	1972	2,446	Poor
Monte Elma Road over Newman Creek	1922	2,194	Poor
Monte Elma Road over Satsop Overflow Channel	1922	1,900	Poor
Elma Mccleary Road over Middle Fork Wildcat Cree	1921	1,325	Poor
Youmans Road over East Hoquiam River	1978	1,135	Poor
Elma Hicklin Road over Middle Br Wildcat Creek	1951	804	Poor
Elma Hicklin Road over Middle Branch Wildcat Ck	1951	804	Poor
Wynooche Wishkah over Wynoochee River Slough	1973	728	Poor
Cranberry Road over Drainage Ditch	1971	612	Poor
Bia 80940 over Overflow Channel	1970	500	Poor
Camp Creek Road over Camp Creek	1971	437	Poor
North River Road over North River	1951	303	Poor
Garrard Creek Road over Garrard Creek	1969	207	Poor
North Shore Road over Finley Creek	2001	200	Poor
Brooklyn Road over Garrard Creek	1970	143	Poor
Wenzel Slough Road over Vance Creek	1971	124	Poor
Stillson Road over West Fork Wildcat Creek	1973	90	Poor
Schafer Boom Road over Smith Canal	1978	43	Poor
Delezenne Road over Delezenne Creek	1972	24	Poor

Busiest bridges in the county

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
US 101 over Hoquiam River	1970	13,233	Poor
US 101 over Hoquiam River	1928	12,765	Poor
SR 12 over Np Ry	1964	12,077	Good
US 12 over Np Ry	1964	12,077	Fair

Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.

All of Washington: Washington bridge conditions by county · every download on the data page.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.