Structure 83120000000000 · Grant County, WA

M RD SW over West Canal

Carries M RD SW over West Canal, M SW 1.2 North Of 11 SW.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT30 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

30 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 multi-beam bridge.

Built195868 years old
Length29.9 ft9.1 m
Daily traffic239counted 2022
Last inspectedDecember 2024every 24 months

Location

StateWashington
CountyGrant
LocationM SW 1.2 North Of 11 SW
CarriesM RD SW
CrossesWest Canal
Coordinates46.94546, -119.77106

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length29.9 ft (9.1 m)
Max Span28.9 ft (8.8 m)
Deck Width24.9 ft (7.6 m)
Deck Area69.2 sq m
Main Spans1
Year Built1958

Traffic

Avg Daily Traffic239 (2022)
Truck Traffic32%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number083120000000000

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