Structure 21306000001023 · Mineral County, CO

Fdr 648 over Wolf Creek

Carries Fdr 648 over Wolf Creek, 13.5 Mi Nne Of Pagosa Spj.

Overall conditionFair

Set by its lowest-rated component: Deck at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT66 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 7/9

66 ft end to end, longest span 29 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.

Built1956rebuilt 1992
Length65.6 ft20 m
Daily traffic113counted 2002
Last inspectedAugust 2024every 24 months

Location

StateColorado
CountyMineral
Location13.5 Mi Nne Of Pagosa Spj
CarriesFdr 648
CrossesWolf Creek
Coordinates37.44193, -106.88706

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length65.6 ft (20 m)
Max Span28.5 ft (8.7 m)
Deck Width15.4 ft (4.7 m)
Deck Area94 sq m
Main Spans3
Year Built1956 (reconstructed 1992)

Traffic

Avg Daily Traffic113 (2002)
Truck Traffic10%
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure Number021306000001023

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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