Structure E-17-AEC · Denver County, CO

I270 EB Rmptoi70eb over I70 EB Rmp To Cent Prk

Carries I270 EB Rmptoi70eb over I70 EB Rmp To Cent Prk, I-270 To I-70E On Ramp.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · 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 FT415 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

415 ft end to end, longest span 158 ft: about 6 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.

Built201214 years old
Length414.7 ft126.4 m
Daily traffic90,500counted 2020
Last inspectedNovember 2023every 24 months

Location

StateColorado
CountyDenver
LocationI-270 To I-70E On Ramp
CarriesI270 EB Rmptoi70eb
CrossesI70 EB Rmp To Cent Prk
Coordinates39.77685, -104.88854

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length414.7 ft (126.4 m)
Max Span158.5 ft (48.3 m)
Deck Width39.0 ft (11.9 m)
Deck Area1504.2 sq m
Main Spans3
Year Built2012

Traffic

Avg Daily Traffic90,500 (2020)
Truck Traffic8%
Lanes On Bridge2
Lanes Under Bridge1

Inspection & Ownership

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

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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