Structure C-17-FX · Weld County, CO

SH 60 WB Ml over I25 Ml

Carries SH 60 WB Ml over I25 Ml, 2 Mi N Of Jct Sh56.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT244 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

244 ft end to end, longest span 117 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 multi-beam bridge.

Built20224 years old
Length244.1 ft74.4 m
Daily traffic5,100counted 2011
Last inspectedJanuary 2024every 24 months

Location

StateColorado
CountyWeld
Location2 Mi N Of Jct Sh56
CarriesSH 60 WB Ml
CrossesI25 Ml
Coordinates40.33540, -104.98073

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length244.1 ft (74.4 m)
Max Span117.1 ft (35.7 m)
Deck Width46.9 ft (14.3 m)
Deck Area1063.9 sq m
Main Spans2
Year Built2022

Traffic

Avg Daily Traffic5,100 (2011)
Truck Traffic6%
Lanes On Bridge3
Lanes Under Bridge6

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberC-17-FX

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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