Structure AUR98.1-AE.0 · Adams County, CO

Hudson Road over Box Elder Creek

Carries Hudson Road over Box Elder Creek, 2 Mi N Of 26th Avenue.

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
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT61 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

61 ft end to end. 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 girder bridge.

Built1965rebuilt 2016
Length61.0 ft18.6 m
Daily traffic888counted 2021
Last inspectedOctober 2023every 24 months

Location

StateColorado
CountyAdams
Location2 Mi N Of 26th Avenue
CarriesHudson Road
CrossesBox Elder Creek
Coordinates39.78248, -104.62159

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length61.0 ft (18.6 m)
Max Span58.7 ft (17.9 m)
Deck Width31.5 ft (9.6 m)
Deck Area178.6 sq m
Main Spans1
Year Built1965 (reconstructed 2016)

Traffic

Avg Daily Traffic888 (2021)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure NumberAUR98.1-AE.0

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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