Structure D-12-L · Grand County, CO

SH 125 Ml over Willow Creek

Carries SH 125 Ml over Willow Creek, 5.5 Mi No Of Jct US 40.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT67 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 67 ft across with 3 openings. 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, so those are drawn as typical for a culvert.

Built201511 years old
Length67.3 ft20.5 m
Daily traffic900counted 2020
Last inspectedSeptember 2024every 24 months

Location

StateColorado
CountyGrand
Location5.5 Mi No Of Jct US 40
CarriesSH 125 Ml
CrossesWillow Creek
Coordinates40.17955, -106.00777

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length67.3 ft (20.5 m)
Max Span22.0 ft (6.7 m)
Deck Width74.8 ft (22.8 m)
Deck Area467.4 sq m
Main Spans3
Year Built2015

Traffic

Avg Daily Traffic900 (2020)
Truck Traffic7%
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 Critical8 — Stable, low risk
Structure NumberD-12-L

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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