US Bridges

US 6 Ml over North Clear Creek

Good

Jefferson County, Colorado · US 6 over Clear Creek · Structure no. F-15-AB

Built
1998
27 years old
Condition
Good
inspected November 2023
Type
Slab
Prestressed Concrete
Length
25 ft
1 main span
Daily traffic
5,600
2020 count
Owner
State
State Highway Agency

About this bridge

US 6 Ml over North Clear Creek is a prestressed concrete slab carrying US 6 Ml over North Clear Creek in Jefferson County, Colorado. It was built in 1998, so it is 27 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 25 ft (7.7 m) long and 167 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 6 Ml
CrossesNorth Clear Creek
LocationUS 6 over Clear Creek
RouteU.S. Route 6G
Coordinates39.74658, -105.39791
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating64.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length25 ft (7.7 m)
Longest span23 ft (6.9 m)
Deck width167 ft (51 m)
Roadway width95 ft (29.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,600 (2020)
Projected traffic6,104 by 2040
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 North Clear Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is US 6 Ml over North 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 North Clear Creek carry?

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

How long is US 6 Ml over North Clear Creek?

The structure is 25 ft (7.7 m) long with a longest span of 23 ft (6.9 m) and a deck 167 ft wide.

Who owns US 6 Ml over North Clear Creek?

It is owned by the State Highway Agency.