US Bridges

US 6 Ml over I 70 Ml

Fair

Garfield County, Colorado · 5 Mi. W. of Glenwood Spri · Structure no. F-07-AC

Built
1971
54 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
190 ft
2 main spans
Daily traffic
1,900
2020 count
Owner
State
State Highway Agency

About this bridge

US 6 Ml over I 70 Ml is a concrete continuous box beam or girders - single or spread carrying US 6 Ml over I 70 Ml in Garfield County, Colorado. It was built in 1971, 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 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 1,900 vehicles a day, roughly 7% of them trucks, projected to reach 2,755 by 2040. The structure is 190 ft (57.9 m) long and 31 ft wide.

CarriesUS 6 Ml
CrossesI 70 Ml
Location5 Mi. W. of Glenwood Spri
RouteU.S. Route 6D
Coordinates39.57431, -107.45195
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.
Substructure7 GoodSome minor problems.
Last inspectionJuly 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 alignment6: Equal to present minimum criteria
Operating rating35.7 US tons
Inventory rating28.5 US tons

Structure

MaterialConcrete Continuous
DeckOther
Main spans2
Design loadHS 20
Structure length190 ft (57.9 m)
Longest span94 ft (28.5 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2020)
Projected traffic2,755 by 2040
Trucks7%
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 1971, making it 54 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 July 2024.

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

About 1,900 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is US 6 Ml over I 70 Ml?

The structure is 190 ft (57.9 m) long with a longest span of 94 ft (28.5 m) and a deck 31 ft wide.

Who owns US 6 Ml over I 70 Ml?

It is owned by the State Highway Agency.