Structure E-17-HP · Adams County, CO

SH 224 Ml over I76 Ramp Up Rr

Carries SH 224 Ml over I76 Ramp Up Rr, 2.6 Mi E Of Jct US 36.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT163 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

163 ft end to end, longest span 44 ft: about 2 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.

Built1963rebuilt 1986
Length163.4 ft49.8 m
Daily traffic12,000counted 2020
Last inspectedJanuary 2025every 24 months

Location

StateColorado
CountyAdams
Location2.6 Mi E Of Jct US 36
CarriesSH 224 Ml
CrossesI76 Ramp Up Rr
Coordinates39.83070, -104.94489

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length163.4 ft (49.8 m)
Max Span44.0 ft (13.4 m)
Deck Width89.2 ft (27.2 m)
Deck Area1354.6 sq m
Main Spans4
Year Built1963 (reconstructed 1986)

Traffic

Avg Daily Traffic12,000 (2020)
Truck Traffic8%
Lanes On Bridge4
Lanes Under Bridge1

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberE-17-HP

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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