Structure 60901000001029 · Mason County, WA

No Data Entered over Brown Creek

Carries No Data Entered over Brown Creek, No Data Entered.

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 overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT90 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

90 ft end to end, longest span 60 ft. Lengths and the car 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 rigid-frame bridge.

Built196957 years old
Length89.9 ft27.4 m
Daily traffic75counted 2006
Last inspectedAugust 2021every 48 months

Location

StateWashington
CountyMason
LocationNo Data Entered
CarriesNo Data Entered
CrossesBrown Creek
Coordinates47.41300, -123.31742

Physical Characteristics

MaterialConcrete Continuous
DesignFrame
Total Length89.9 ft (27.4 m)
Max Span60.0 ft (18.3 m)
Deck Width16.7 ft (5.1 m)
Deck Area139.7 sq m
Main Spans3
Year Built1969

Traffic

Avg Daily Traffic75 (2006)
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2021
Inspection FrequencyEvery 48 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number060901000001029

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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