Structure E-16-PX · Adams County, CO

US 287 Ml over US 36 Ml

Carries US 287 Ml over US 36 Ml, Federal @ US 36 In West..

Overall conditionGood

Set by its lowest-rated component: Superstructure and Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT345 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9 · sets the ratingSubstructure 7/9 · sets the rating

345 ft end to end, longest span 171 ft: about 5 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.

Built200224 years old
Length345.1 ft105.2 m
Daily traffic40,000counted 2020
Last inspectedMarch 2023every 24 months

Location

StateColorado
CountyAdams
LocationFederal @ US 36 In West.
CarriesUS 287 Ml
CrossesUS 36 Ml
Coordinates39.83563, -105.02471

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length345.1 ft (105.2 m)
Max Span170.6 ft (52 m)
Deck Width114.5 ft (34.9 m)
Deck Area3671.5 sq m
Main Spans2
Year Built2002

Traffic

Avg Daily Traffic40,000 (2020)
Truck Traffic3%
Lanes On Bridge6
Lanes Under Bridge9

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberE-16-PX

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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