US Bridges

I 70 Ml Wbnd over Hillside

Good

Eagle County, Colorado · 9.7 MI E of JCT SH24 · Structure no. F-11-AX

Built
1977
48 years old, rebuilt 1990
Condition
Good
inspected August 2024
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
767 ft
4 main spans
Daily traffic
10,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Ml Wbnd over Hillside is a prestressed concrete continuous segmental box girder carrying I 70 Ml Wbnd over Hillside in Eagle County, Colorado. It was built in 1977 and reconstructed in 1990, so it is 48 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,000 vehicles a day, roughly 14% of them trucks, projected to reach 12,100 by 2040. The structure is 767 ft (233.8 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 70 Ml Wbnd
CrossesHillside
Location9.7 MI E of JCT SH24
RouteInterstate 70A
Coordinates39.63617, -106.29397
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.4 US tons
Inventory rating16.4 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4 (+2 approach)
Design loadHS 20
Structure length767 ft (233.8 m)
Longest span210 ft (64 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2020)
Projected traffic12,100 by 2040
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 70 Ml Wbnd over Hillside built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 1990.

What condition is I 70 Ml Wbnd over Hillside in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does I 70 Ml Wbnd over Hillside carry?

About 10,000 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is I 70 Ml Wbnd over Hillside?

The structure is 767 ft (233.8 m) long with a longest span of 210 ft (64 m) and a deck 42 ft wide.

Who owns I 70 Ml Wbnd over Hillside?

It is owned by the State Highway Agency.