Structure 11406000000241 · Lincoln County, MT

RD 36 over Wolf CR

Carries RD 36 over Wolf CR, Wolf Cr. Mp 16.9 Fairview.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT74 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

74 ft end to end, longest span 25 ft. Lengths and the car 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.

Built196957 years old
Length74.1 ft22.6 m
Daily traffic502 lanes
Last inspectedSeptember 2023every 24 months

Location

StateMontana
CountyLincoln
LocationWolf Cr. Mp 16.9 Fairview
CarriesRD 36
CrossesWolf CR
Coordinates48.35413, -115.03709

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length74.1 ft (22.6 m)
Max Span24.9 ft (7.6 m)
Deck Width27.2 ft (8.3 m)
Deck Area187.6 sq m
Main Spans3
Year Built1969

Traffic

Avg Daily Traffic50
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number011406000000241

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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