US Bridges

I 70 Ml Ebnd over US 6 Ml and Ramp

Fair

Jefferson County, Colorado · 1.2 MI E of C470 · Structure no. F-16-AS

Built
1969
56 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
284 ft
4 main spans
Daily traffic
53,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Ml Ebnd over US 6 Ml and Ramp is a concrete continuous box beam or girders - multiple carrying I 70 Ml Ebnd over US 6 Ml and Ramp in Jefferson County, Colorado. It was built in 1969, so it is 56 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 53,000 vehicles a day, roughly 7% of them trucks, projected to reach 65,720 by 2040. The structure is 284 ft (86.7 m) long and 54 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 70 Ml Ebnd
CrossesUS 6 Ml and Ramp
Location1.2 MI E of C470
RouteInterstate 70A
Coordinates39.72508, -105.17932
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.4 US tons
Inventory rating31.3 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length284 ft (86.7 m)
Longest span105 ft (32 m)
Deck width54 ft (16.5 m)
Roadway width52 ft (15.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53,000 (2020)
Projected traffic65,720 by 2040
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 Ebnd over US 6 Ml and Ramp built?

It was built in 1969, making it 56 years old in 2025.

What condition is I 70 Ml Ebnd over US 6 Ml and Ramp 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 March 2024.

How much traffic does I 70 Ml Ebnd over US 6 Ml and Ramp carry?

About 53,000 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is I 70 Ml Ebnd over US 6 Ml and Ramp?

The structure is 284 ft (86.7 m) long with a longest span of 105 ft (32 m) and a deck 54 ft wide.

Who owns I 70 Ml Ebnd over US 6 Ml and Ramp?

It is owned by the State Highway Agency.