Structure I-25-G · Cheyenne County, CO

US 40 Ml over Wild Horse Creek

Carries US 40 Ml over Wild Horse Creek, In Kit Carson.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT124 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

124 ft end to end, longest span 40 ft. 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 rigid-frame bridge.

Built198739 years old
Length123.7 ft37.7 m
Daily traffic4,500counted 2020
Last inspectedFebruary 2025every 24 months

Location

StateColorado
CountyCheyenne
LocationIn Kit Carson
CarriesUS 40 Ml
CrossesWild Horse Creek
Coordinates38.76413, -102.79573

Physical Characteristics

MaterialConcrete Continuous
DesignFrame
Total Length123.7 ft (37.7 m)
Max Span40.0 ft (12.2 m)
Deck Width102.7 ft (31.3 m)
Deck Area1180.0 sq m
Main Spans3
Year Built1987

Traffic

Avg Daily Traffic4,500 (2020)
Truck Traffic38%
Lanes On Bridge5

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberI-25-G

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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