Structure F-08-AV · Garfield County, CO

I 70 Ml Wbnd over Hillside

Carries I 70 Ml Wbnd over Hillside, E. App Of Revrs Crv Tunnl.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,320 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

1,320 ft end to end, longest span 210 ft: about 3.7 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 segmental box-girder bridge.

Built198937 years old
Length1319.9 ft402.3 m
Daily traffic8,500counted 2020
Last inspectedMay 2024every 24 months

Location

StateColorado
CountyGarfield
LocationE. App Of Revrs Crv Tunnl
CarriesI 70 Ml Wbnd
CrossesHillside
Coordinates39.60286, -107.16047

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignSegmental Box Girder
Total Length1319.9 ft (402.3 m)
Max Span210.0 ft (64 m)
Deck Width35.4 ft (10.8 m)
Deck Area4344.8 sq m
Main Spans7
Year Built1989

Traffic

Avg Daily Traffic8,500 (2020)
Truck Traffic13%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 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-08-AV

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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