Structure 6579A0000000 · Spokane County, WA

I-90 over Hangman Creek

Carries I-90 over Hangman Creek, 0.4 E Jct US 195.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,222 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

1,222 ft end to end, longest span 218 ft: about 3.4 football fields. 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 box-beam bridge.

Built196363 years old
Length1222.1 ft372.5 m
Daily traffic46,335counted 2023
Last inspectedSeptember 2023every 24 months

Location

StateWashington
CountySpokane
Location0.4 E Jct US 195
CarriesI-90
CrossesHangman Creek
Coordinates47.64758, -117.44894

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length1222.1 ft (372.5 m)
Max Span217.8 ft (66.4 m)
Deck Width48.6 ft (14.8 m)
Deck Area5,513 sq m
Main Spans6
Year Built1963

Traffic

Avg Daily Traffic46,335 (2023)
Truck Traffic10%
Lanes On Bridge4
Lanes Under Bridge4

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number0006579A0000000

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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