Structure 86473200000000 · Skamania County, WA

Doetsch Ranch Road over Burlington Northern Rr

Carries Doetsch Ranch Road over Burlington Northern Rr, Beacon Rock State Park.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT175 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

175 ft end to end, longest span 93 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.

Built200620 years old
Length174.9 ft53.3 m
Daily traffic200counted 2015
Last inspectedNovember 2021every 48 months

Location

StateWashington
CountySkamania
LocationBeacon Rock State Park
CarriesDoetsch Ranch Road
CrossesBurlington Northern Rr
Coordinates45.61947, -122.03000

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length174.9 ft (53.3 m)
Max Span92.8 ft (28.3 m)
Deck Width37.1 ft (11.3 m)
Deck Area602.3 sq m
Main Spans3
Year Built2006

Traffic

Avg Daily Traffic200 (2015)
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2021
Inspection FrequencyEvery 48 months
OwnerState Park/Forest Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number086473200000000

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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