Structure 12674A0000000 · Grays Harbor County, WA

US 101 over West Fork Hoquiam River

Carries US 101 over West Fork Hoquiam River, 6.0 N Jct SR 109.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT181 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

181 ft end to end, longest span 30 ft: about 3 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built198541 years old
Length181.1 ft55.2 m
Daily traffic2,577counted 2023
Last inspectedAugust 2024every 24 months

Location

StateWashington
CountyGrays Harbor
Location6.0 N Jct SR 109
CarriesUS 101
CrossesWest Fork Hoquiam River
Coordinates47.05050, -123.92525

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignSlab
Total Length181.1 ft (55.2 m)
Max Span29.9 ft (9.1 m)
Deck Width44.0 ft (13.4 m)
Deck Area739.7 sq m
Main Spans6
Year Built1985

Traffic

Avg Daily Traffic2,577 (2023)
Truck Traffic21%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number0012674A0000000

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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