US Bridges

I 70 Ml Ebnd over Bluervr-Adams Ave And...

Fair

Summit County, Colorado · 10.5 MI E of JCT SH 91 · Structure no. F-12-Y

Built
1971
54 years old, rebuilt 2023
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
555 ft
4 main spans
Daily traffic
20,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Ml Ebnd over Bluervr-Adams Ave And... is a steel continuous stringer/multi-beam or girder carrying I 70 Ml Ebnd over Bluervr-Adams Ave And... in Summit County, Colorado. It was built in 1971 and reconstructed in 2023, so it is 54 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 5 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 20,000 vehicles a day, roughly 10% of them trucks, projected to reach 24,600 by 2040. The structure is 555 ft (169.2 m) long and 63 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesI 70 Ml Ebnd
CrossesBluervr-Adams Ave And...
Location10.5 MI E of JCT SH 91
RouteInterstate 70A
Coordinates39.62572, -106.07136
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.5 US tons
Inventory rating32.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length555 ft (169.2 m)
Longest span165 ft (50.3 m)
Deck width63 ft (19.1 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,000 (2020)
Projected traffic24,600 by 2040
Trucks10%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed5 mi (8 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$5,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I 70 Ml Ebnd over Bluervr-Adams Ave And... built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2023.

What condition is I 70 Ml Ebnd over Bluervr-Adams Ave And... 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 September 2023.

How much traffic does I 70 Ml Ebnd over Bluervr-Adams Ave And... carry?

About 20,000 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is I 70 Ml Ebnd over Bluervr-Adams Ave And...?

The structure is 555 ft (169.2 m) long with a longest span of 165 ft (50.3 m) and a deck 63 ft wide.

Who owns I 70 Ml Ebnd over Bluervr-Adams Ave And...?

It is owned by the State Highway Agency.