US Bridges

I 70 Ml Wbnd over Black Gore Creek

Poor

Eagle County, Colorado · 7.5 MI W of Vail Pass Sum · Structure no. F-11-AT

Built
1977
48 years old
Condition
Poor
inspected August 2023
Type
Box Beam or Girders - Single or Spread
Steel Continuous
Length
354 ft
2 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 steel continuous box beam or girders - single or spread carrying I 70 Ml Wbnd over Black Gore Creek in Eagle County, Colorado. It was built in 1977, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 10,000 vehicles a day, roughly 14% of them trucks, projected to reach 12,100 by 2040. The structure is 354 ft (107.9 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
Location7.5 MI W of Vail Pass Sum
RouteInterstate 70A
Coordinates39.61831, -106.27916
Functional classRural Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.8 US tons
Inventory rating20.2 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length354 ft (107.9 m)
Longest span175 ft (53.2 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$3.2 million
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.

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

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.

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 354 ft (107.9 m) long with a longest span of 175 ft (53.2 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.