Structure 60505000001556 · King County, WA

Road over Hansen Creek

Carries Road over Hansen Creek, 2.8 Mi E Of I-90/55 Jct.

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 overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT61 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

61 ft end to end. 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 slab bridge.

Built199432 years old
Length61.0 ft18.6 m
Daily traffic25counted 1992
Last inspectedAugust 2021every 48 months

Location

StateWashington
CountyKing
Location2.8 Mi E Of I-90/55 Jct
CarriesRoad
CrossesHansen Creek
Coordinates47.39111, -121.52861

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length61.0 ft (18.6 m)
Max Span60.0 ft (18.3 m)
Deck Width32.2 ft (9.8 m)
Deck Area182.3 sq m
Main Spans1
Year Built1994

Traffic

Avg Daily Traffic25 (1992)
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 Number060505000001556

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.

Nearby Bridges