Structure E-17-RT · Adams County, CO

Pena BLVD Nbnd Rmp over I 70 Ml

Carries Pena BLVD Nbnd Rmp over I 70 Ml, .8 Mi E Of Chambers Road.

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 FT630 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

630 ft end to end, longest span 181 ft: about 1.7 football fields. 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.

Built199333 years old
Length629.9 ft192 m
Daily traffic28,051counted 2024
Last inspectedNovember 2023every 24 months

Location

StateColorado
CountyAdams
Location.8 Mi E Of Chambers Road
CarriesPena BLVD Nbnd Rmp
CrossesI 70 Ml
Coordinates39.76740, -104.79704

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length629.9 ft (192 m)
Max Span181.1 ft (55.2 m)
Deck Width59.1 ft (18 m)
Deck Area3,456 sq m
Main Spans4
Year Built1993

Traffic

Avg Daily Traffic28,051 (2024)
Truck Traffic6%
Lanes On Bridge2
Lanes Under Bridge7

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-RT

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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