Structure C-17-AS · Weld County, CO

I 25 Ml Sbnd over County Road

Carries I 25 Ml Sbnd over County Road, 2.9 Mi So Of Jct SH 56.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT94 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

94 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.

Built1961rebuilt 2006
Length93.5 ft28.5 m
Daily traffic36,000counted 2020
Last inspectedJune 2023every 24 months

Location

StateColorado
CountyWeld
Location2.9 Mi So Of Jct SH 56
CarriesI 25 Ml Sbnd
CrossesCounty Road
Coordinates40.29326, -104.98017

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length93.5 ft (28.5 m)
Max Span29.9 ft (9.1 m)
Deck Width53.5 ft (16.3 m)
Deck Area464.6 sq m
Main Spans3
Year Built1961 (reconstructed 2006)

Traffic

Avg Daily Traffic36,000 (2020)
Truck Traffic10%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberC-17-AS

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.

Nearby Bridges