US Bridges

I70 Ml over Light Rail

Fair

Jefferson County, Colorado · Just N of 6th Avenue · Structure no. F-16-XD

Built
2010
15 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
52 ft
1 main span
Daily traffic
106,000
2020 count
Owner
State
State Highway Agency

About this bridge

I70 Ml over Light Rail is a concrete slab carrying I70 Ml over Light Rail in Jefferson County, Colorado. It was built in 2010, so it is 15 years old, younger 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 106,000 vehicles a day, roughly 7% of them trucks, projected to reach 131,440 by 2040. The structure is 52 ft (15.9 m) long and 201 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI70 Ml
CrossesLight Rail
LocationJust N of 6th Avenue
RouteInterstate 70A
Coordinates39.72568, -105.17838
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating46.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckOther
Main spans1
Design loadHL 93
Structure length52 ft (15.9 m)
Longest span44 ft (13.3 m)
Deck width201 ft (61.4 m)
Roadway width103 ft (31.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic106,000 (2020)
Projected traffic131,440 by 2040
Trucks7%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 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 I70 Ml over Light Rail built?

It was built in 2010, making it 15 years old in 2025.

What condition is I70 Ml over Light Rail 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 I70 Ml over Light Rail carry?

About 106,000 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is I70 Ml over Light Rail?

The structure is 52 ft (15.9 m) long with a longest span of 44 ft (13.3 m) and a deck 201 ft wide.

Who owns I70 Ml over Light Rail?

It is owned by the State Highway Agency.