Structure 79936000000000 · Adams County, WA

Providence RD over Dry Relief

Carries Providence RD over Dry Relief, 00.59 Mi E Johnson.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

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

23 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.

Built1900rebuilt 1976
Length23.0 ft7 m
Daily traffic10counted 2018
Last inspectedOctober 2024every 24 months

Location

StateWashington
CountyAdams
Location00.59 Mi E Johnson
CarriesProvidence RD
CrossesDry Relief
Coordinates46.91145, -118.88553

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length23.0 ft (7 m)
Max Span21.3 ft (6.5 m)
Deck Width24.0 ft (7.3 m)
Deck Area51.1 sq m
Main Spans1
Year Built1900 (reconstructed 1976)

Traffic

Avg Daily Traffic10 (2018)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number079936000000000

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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