Structure M-17-BA · Huerfano County, CO

County Road 110 over I 25 Ml

Carries County Road 110 over I 25 Ml, 14 Mi No Of Walsenburg.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT204 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 8/9

204 ft end to end, longest span 69 ft: about 3 semi-trucks nose to tail. 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 tee-beam bridge.

Built196759 years old
Length204.1 ft62.2 m
Daily traffic360counted 2022
Last inspectedDecember 2022every 24 months

Location

StateColorado
CountyHuerfano
Location14 Mi No Of Walsenburg
CarriesCounty Road 110
CrossesI 25 Ml
Coordinates37.82143, -104.82903

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length204.1 ft (62.2 m)
Max Span68.9 ft (21 m)
Deck Width32.2 ft (9.8 m)
Deck Area609.6 sq m
Main Spans4
Year Built1967

Traffic

Avg Daily Traffic360 (2022)
Truck Traffic2%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionDecember 2022
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberM-17-BA

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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