Structure 89416000000000 · Walla Walla County, WA

Brown RD over Dry Run

Carries Brown RD over Dry Run, 0.55 Mi E Of Sr125.

Overall conditionGood

Set by its lowest-rated component: Culvert at 8 of 9.

How ratings work
Culvertsets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
22 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 8/9

A culvert 22 ft across. 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, so those are drawn as typical for a culvert.

Built201214 years old
Length22.3 ft6.8 m
Daily traffic47counted 2023
Last inspectedSeptember 2024every 24 months

Location

StateWashington
CountyWalla Walla
Location0.55 Mi E Of Sr125
CarriesBrown RD
CrossesDry Run
Coordinates46.23725, -118.35803

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length22.3 ft (6.8 m)
Max Span22.3 ft (6.8 m)
Deck Width62.7 ft (19.1 m)
Deck Area129.9 sq m
Main Spans1
Year Built2012

Traffic

Avg Daily Traffic47 (2023)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number089416000000000

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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