Structure F-11-AW · Eagle County, CO

I 70 Ebnd over Hillside

Carries I 70 Ebnd over Hillside, 1.0 Mile East Of Exit 180.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT922 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

922 ft end to end, longest span 210 ft: about 2.6 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 segmental box-girder bridge.

Built1977rebuilt 1990
Length922.2 ft281.1 m
Daily traffic10,000counted 2020
Last inspectedAugust 2024every 24 months

Location

StateColorado
CountyEagle
Location1.0 Mile East Of Exit 180
CarriesI 70 Ebnd
CrossesHillside
Coordinates39.63625, -106.29445

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignSegmental Box Girder
Total Length922.2 ft (281.1 m)
Max Span210.0 ft (64 m)
Deck Width42.0 ft (12.8 m)
Deck Area3598.1 sq m
Main Spans5
Year Built1977 (reconstructed 1990)

Traffic

Avg Daily Traffic10,000 (2020)
Truck Traffic14%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical9 — Foundation above flood level
Structure NumberF-11-AW

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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