US Bridges

County Road L.60 over I 70 Ml

Fair

Mesa County, Colorado · 2.0 MI E of Colo-Utah Sl · Structure no. H-01-AJ

Built
1973
52 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
469 ft
3 main spans
Daily traffic
73
2022 count
Owner
State
State Highway Agency

About this bridge

County Road L.60 over I 70 Ml is a steel continuous stringer/multi-beam or girder carrying County Road L.60 over I 70 Ml in Mesa County, Colorado. It was built in 1973, so it is 52 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 73 vehicles a day, projected to reach 85 by 2042. The structure is 469 ft (143.1 m) long and 36 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesCounty Road L.60
CrossesI 70 Ml
Location2.0 MI E of Colo-Utah Sl
RouteCounty Highway 70A
Coordinates39.19014, -109.01935
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 rating50 US tons
Inventory rating39.2 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length469 ft (143.1 m)
Longest span155 ft (47.2 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic73 (2022)
Projected traffic85 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

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 County Road L.60 over I 70 Ml built?

It was built in 1973, making it 52 years old in 2025.

What condition is County Road L.60 over I 70 Ml 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 July 2024.

How much traffic does County Road L.60 over I 70 Ml carry?

About 73 vehicles per day (2022 count).

How long is County Road L.60 over I 70 Ml?

The structure is 469 ft (143.1 m) long with a longest span of 155 ft (47.2 m) and a deck 36 ft wide.

Who owns County Road L.60 over I 70 Ml?

It is owned by the State Highway Agency.