US Bridges

US 50 Ml Wbnd over Arkansas River

Fair

Prowers County, Colorado · 2 MI N of Lamar · Structure no. L-26-BW

Built
1989
36 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
569 ft
5 main spans
Daily traffic
4,700
2020 count
Owner
State
State Highway Agency

About this bridge

US 50 Ml Wbnd over Arkansas River is a prestressed concrete continuous stringer/multi-beam or girder carrying US 50 Ml Wbnd over Arkansas River in Prowers County, Colorado. It was built in 1989, so it is 36 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 4,700 vehicles a day, roughly 19% of them trucks, projected to reach 5,311 by 2040. The structure is 569 ft (173.3 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 50 Ml Wbnd
CrossesArkansas River
Location2 MI N of Lamar
RouteU.S. Route 50B
Coordinates38.10454, -102.61821
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating28.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length569 ft (173.3 m)
Longest span126 ft (38.5 m)
Deck width40 ft (12.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,700 (2020)
Projected traffic5,311 by 2040
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Wbnd over Arkansas River built?

It was built in 1989, making it 36 years old in 2025.

What condition is US 50 Ml Wbnd over Arkansas River 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 March 2024.

How much traffic does US 50 Ml Wbnd over Arkansas River carry?

About 4,700 vehicles per day (2020 count), of which roughly 19% are trucks.

How long is US 50 Ml Wbnd over Arkansas River?

The structure is 569 ft (173.3 m) long with a longest span of 126 ft (38.5 m) and a deck 40 ft wide.

Who owns US 50 Ml Wbnd over Arkansas River?

It is owned by the State Highway Agency.