Structure 81392000000000 · Douglas County, WA

Fourth ST NE over G.w.r.d. Irrigation Cana

Carries Fourth ST NE over G.w.r.d. Irrigation Cana, 0.29 Miles N. Grant Rd..

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
25 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

25 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built1945rebuilt 1982
Length24.9 ft7.6 m
Daily traffic543counted 2017
Last inspectedOctober 2024every 24 months

Location

StateWashington
CountyDouglas
Location0.29 Miles N. Grant Rd.
CarriesFourth ST NE
CrossesG.w.r.d. Irrigation Cana
Coordinates47.41105, -120.27761

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length24.9 ft (7.6 m)
Max Span23.0 ft (7 m)
Deck Width25.9 ft (7.9 m)
Deck Area60.0 sq m
Main Spans1
Year Built1945 (reconstructed 1982)

Traffic

Avg Daily Traffic543 (2017)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number081392000000000

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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