Structure 82097000000000 · Grays Harbor County, WA

Devonshire RD over Higgins Slough

Carries Devonshire RD over Higgins Slough, 4.3 E Jct SR 12.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT134 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

134 ft end to end, longest span 29 ft. 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.

Built197749 years old
Length133.5 ft40.7 m
Daily traffic351counted 2023
Last inspectedNovember 2023every 24 months

Location

StateWashington
CountyGrays Harbor
Location4.3 E Jct SR 12
CarriesDevonshire RD
CrossesHiggins Slough
Coordinates46.96222, -123.67853

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length133.5 ft (40.7 m)
Max Span28.9 ft (8.8 m)
Deck Width26.6 ft (8.1 m)
Deck Area329.7 sq m
Main Spans5
Year Built1977

Traffic

Avg Daily Traffic351 (2023)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number082097000000000

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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