US Bridges

US 50 Ml over Kannah Creek

Fair

Mesa County, Colorado · 4.4 MI SE of JCT SH 141 · Structure no. I-03-N

Built
2000
25 years old
Condition
Fair
inspected February 2025
Type
Culvert
Concrete
Length
82 ft
3 main spans
Daily traffic
9,800
2020 count
Owner
State
State Highway Agency

About this bridge

US 50 Ml over Kannah Creek is a concrete culvert carrying US 50 Ml over Kannah Creek in Mesa County, Colorado. It was built in 2000, so it is 25 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 5 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 9,800 vehicles a day, roughly 8% of them trucks, projected to reach 11,760 by 2040. The structure is 82 ft (24.9 m) long and 160 ft wide. If it were closed, the detour would be 62.1 mi (100 km).

CarriesUS 50 Ml
CrossesKannah Creek
Location4.4 MI SE of JCT SH 141
RouteU.S. Route 50A
Coordinates38.93477, -108.39592
Functional classRural Principal Arterial - Other

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length82 ft (24.9 m)
Longest span27 ft (8.1 m)
Deck width160 ft (48.9 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,800 (2020)
Projected traffic11,760 by 2040
Trucks8%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed62.1 mi (100 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 50 Ml over Kannah Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is US 50 Ml over Kannah 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 50 Ml over Kannah Creek carry?

About 9,800 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is US 50 Ml over Kannah Creek?

The structure is 82 ft (24.9 m) long with a longest span of 27 ft (8.1 m) and a deck 160 ft wide.

Who owns US 50 Ml over Kannah Creek?

It is owned by the State Highway Agency.