Structure C-12-B · Jackson County, CO

SH 125 Ml over Willow Creek

Carries SH 125 Ml over Willow Creek, 35 Mi N Of Granby.

Overall conditionPoor

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating4/9 · Poor
Substructure6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT63 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9 · sets the ratingSubstructure 6/9

63 ft end to end, longest span 30 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 tee-beam bridge.

Built195571 years old
Length62.7 ft19.1 m
Daily traffic220counted 2020
Last inspectedSeptember 2024every 24 months

Location

StateColorado
CountyJackson
Location35 Mi N Of Granby
CarriesSH 125 Ml
CrossesWillow Creek
Coordinates40.49496, -106.21407

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length62.7 ft (19.1 m)
Max Span29.9 ft (9.1 m)
Deck Width27.9 ft (8.5 m)
Deck Area162.3 sq m
Main Spans2
Year Built1955

Traffic

Avg Daily Traffic220 (2020)
Truck Traffic16%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberC-12-B

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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