US Bridges

I 70 Ml Wbnd over Black Gore Creek

Fair

Eagle County, Colorado · 9.1 MI West of JCT SH 91 · Structure no. F-11-AN

Built
1977
48 years old, rebuilt 1983
Condition
Fair
inspected August 2024
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
748 ft
4 main spans
Daily traffic
10,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Ml Wbnd over Black Gore Creek is a prestressed concrete continuous segmental box girder carrying I 70 Ml Wbnd over Black Gore Creek in Eagle County, Colorado. It was built in 1977 and reconstructed in 1983, 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 10,000 vehicles a day, roughly 14% of them trucks, projected to reach 12,100 by 2040. The structure is 748 ft (227.9 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 70 Ml Wbnd
CrossesBlack Gore Creek
Location9.1 MI West of JCT SH 91
RouteInterstate 70A
Coordinates39.59496, -106.2629
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating18 US tons
Inventory rating10.8 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length748 ft (227.9 m)
Longest span225 ft (68.6 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
CrossesWaterway
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 Black Gore Creek built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 1983.

What condition is I 70 Ml Wbnd over Black Gore Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does I 70 Ml Wbnd over Black Gore Creek carry?

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

How long is I 70 Ml Wbnd over Black Gore Creek?

The structure is 748 ft (227.9 m) long with a longest span of 225 ft (68.6 m) and a deck 42 ft wide.

Who owns I 70 Ml Wbnd over Black Gore Creek?

It is owned by the State Highway Agency.