Structure 88829000000000 · Mason County, WA

Skokomish Valleyrd over Hunter Creek

Carries Skokomish Valleyrd over Hunter Creek, 1.76 W Jct SR 101.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT137 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

137 ft end to end, longest span 64 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 girder bridge.

Built201511 years old
Length137.1 ft41.8 m
Daily traffic494counted 2023
Last inspectedMay 2024every 24 months

Location

StateWashington
CountyMason
Location1.76 W Jct SR 101
CarriesSkokomish Valleyrd
CrossesHunter Creek
Coordinates47.31271, -123.20281

Physical Characteristics

MaterialPrestressed Concrete
DesignGirder and Floorbeam
Total Length137.1 ft (41.8 m)
Max Span64.3 ft (19.6 m)
Deck Width30.8 ft (9.4 m)
Deck Area392.9 sq m
Main Spans2
Year Built2015

Traffic

Avg Daily Traffic494 (2023)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number088829000000000

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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