US Bridges

US 50 Ml over Clay Creek

Good

Prowers County, Colorado · 4.7 MI East of Lamar · Structure no. L-26-F

Built
1966
59 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete Continuous
Length
306 ft
5 main spans
Daily traffic
2,600
2020 count
Owner
State
State Highway Agency

About this bridge

US 50 Ml over Clay Creek is a concrete continuous slab carrying US 50 Ml over Clay Creek in Prowers County, Colorado. It was built in 1966, so it is 59 years old, older 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 2,600 vehicles a day, roughly 16% of them trucks, projected to reach 2,730 by 2040. The structure is 306 ft (93.2 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS 50 Ml
CrossesClay Creek
Location4.7 MI East of Lamar
RouteU.S. Route 50B
Coordinates38.09269, -102.53284
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating46 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length306 ft (93.2 m)
Longest span64 ft (19.5 m)
Deck width38 ft (11.7 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,600 (2020)
Projected traffic2,730 by 2040
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Clay Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is US 50 Ml over Clay 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 August 2024.

How much traffic does US 50 Ml over Clay Creek carry?

About 2,600 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is US 50 Ml over Clay Creek?

The structure is 306 ft (93.2 m) long with a longest span of 64 ft (19.5 m) and a deck 38 ft wide.

Who owns US 50 Ml over Clay Creek?

It is owned by the State Highway Agency.