Structure 60301000000117 · Skamania County, WA

No Data Entered over Swift Creek

Carries No Data Entered over Swift Creek, About 4 Miles East Of Cow.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating4/9 · Poor
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT441 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 4/9 · sets the rating

441 ft end to end: about 6 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 deck truss.

Built195769 years old
Length441.3 ft134.5 m
Daily traffic650counted 1992
Last inspectedAugust 2023every 24 months

Location

StateWashington
CountySkamania
LocationAbout 4 Miles East Of Cow
CarriesNo Data Entered
CrossesSwift Creek
Coordinates46.08609, -122.20189

Physical Characteristics

MaterialSteel Continuous
DesignTruss - Deck
Total Length441.3 ft (134.5 m)
Max Span96.5 ft (29.4 m)
Deck Width29.2 ft (8.9 m)
Deck Area1197.0 sq m
Main Spans1
Year Built1957

Traffic

Avg Daily Traffic650 (1992)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical9 — Foundation above flood level
Structure Number060301000000117

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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