US Bridges

US 6 Ml over Clear Creek

Good

Clear Creek County, Colorado · 1.5 MI E of JCT I70 · Structure no. F-15-CO

Built
1984
41 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
91 ft
1 main span
Daily traffic
5,600
2020 count
Owner
State
State Highway Agency

About this bridge

US 6 Ml over Clear Creek is a prestressed concrete stringer/multi-beam or girder carrying US 6 Ml over Clear Creek in Clear Creek County, Colorado. It was built in 1984, so it is 41 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,600 vehicles a day, roughly 9% of them trucks, projected to reach 6,104 by 2040. The structure is 91 ft (27.7 m) long and 43 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesUS 6 Ml
CrossesClear Creek
Location1.5 MI E of JCT I70
RouteU.S. Route 6G
Coordinates39.73681, -105.42033
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating79.1 US tons
Inventory rating34 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length91 ft (27.7 m)
Longest span86 ft (26.2 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,600 (2020)
Projected traffic6,104 by 2040
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 US 6 Ml over Clear Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is US 6 Ml over Clear Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does US 6 Ml over Clear Creek carry?

About 5,600 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is US 6 Ml over Clear Creek?

The structure is 91 ft (27.7 m) long with a longest span of 86 ft (26.2 m) and a deck 43 ft wide.

Who owns US 6 Ml over Clear Creek?

It is owned by the State Highway Agency.