US Bridges

US 6 Ml over I 70 Ml

Fair

Eagle County, Colorado · In Gypsum · Structure no. F-09-J

Built
1978
47 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
259 ft
2 main spans
Daily traffic
3,700
2018 count
Owner
State
State Highway Agency

About this bridge

US 6 Ml over I 70 Ml is a prestressed concrete continuous box beam or girders - single or spread carrying US 6 Ml over I 70 Ml in Eagle County, Colorado. It was built in 1978, so it is 47 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 3,700 vehicles a day, roughly 6% of them trucks, projected to reach 5,624 by 2038. The structure is 259 ft (79 m) long and 45 ft wide.

CarriesUS 6 Ml
CrossesI 70 Ml
LocationIn Gypsum
RouteU.S. Route 6N
Coordinates39.65258, -106.95557
Functional classRural Major Collector

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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating25 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length259 ft (79 m)
Longest span128 ft (39 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,700 (2018)
Projected traffic5,624 by 2038
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 US 6 Ml over I 70 Ml built?

It was built in 1978, making it 47 years old in 2025.

What condition is US 6 Ml 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 August 2024.

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

About 3,700 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is US 6 Ml over I 70 Ml?

The structure is 259 ft (79 m) long with a longest span of 128 ft (39 m) and a deck 45 ft wide.

Who owns US 6 Ml over I 70 Ml?

It is owned by the State Highway Agency.