Structure 84744000000000 · Skamania County, WA

Skamania Landing R over Butler Slough

Carries Skamania Landing R over Butler Slough, 0.12 S Jct SR 14.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating3/9 · Serious
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT165 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 3/9 · sets the rating

165 ft end to end, longest span 15 ft: about 2 semi-trucks nose to tail. 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 multi-beam bridge.

Built194878 years old
Length165.0 ft50.3 m
Daily traffic209counted 2022
Last inspectedMay 2024every 12 months

Location

StateWashington
CountySkamania
Location0.12 S Jct SR 14
CarriesSkamania Landing R
CrossesButler Slough
Coordinates45.61833, -122.04167

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length165.0 ft (50.3 m)
Max Span15.1 ft (4.6 m)
Deck Width14.1 ft (4.3 m)
Deck Area216.3 sq m
Main Spans11
Year Built1948

Traffic

Avg Daily Traffic209 (2022)
Truck Traffic5%
Lanes On Bridge1

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number084744000000000

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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