US Bridges

US 6 Ml over Adobe Creek

Fair

Mesa County, Colorado · 2.6 MI SE of JCT SH340 · Structure no. H-02-FA

Built
1986
39 years old
Condition
Fair
inspected February 2025
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
12,000
2018 count
Owner
State
State Highway Agency

About this bridge

US 6 Ml over Adobe Creek is a concrete culvert carrying US 6 Ml over Adobe Creek in Mesa County, Colorado. It was built in 1986, so it is 39 years old, younger 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 12,000 vehicles a day, roughly 3% of them trucks, projected to reach 16,200 by 2038. The structure is 20 ft (6.1 m) long and 76 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesUS 6 Ml
CrossesAdobe Creek
Location2.6 MI SE of JCT SH340
RouteU.S. Route 6A
Coordinates39.13705, -108.69714
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating47.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width76 ft (23.2 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (2018)
Projected traffic16,200 by 2038
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

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 Adobe Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is US 6 Ml over Adobe Creek 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 February 2025.

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

About 12,000 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is US 6 Ml over Adobe Creek?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 76 ft wide.

Who owns US 6 Ml over Adobe Creek?

It is owned by the State Highway Agency.