US Bridges

US 50 Ml over Lamar Canal

Fair

Prowers County, Colorado · In Lamar · Structure no. L-26-E

Built
1931
94 years old, rebuilt 1962
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
24 ft
1 main span
Daily traffic
13,000
2020 count
Owner
State
State Highway Agency

About this bridge

US 50 Ml over Lamar Canal is a concrete slab carrying US 50 Ml over Lamar Canal in Prowers County, Colorado. It was built in 1931 and reconstructed in 1962, so it is 94 years old, older 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 13,000 vehicles a day, roughly 13% of them trucks, projected to reach 15,340 by 2040. The structure is 24 ft (7.3 m) long and 88 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS 50 Ml
CrossesLamar Canal
LocationIn Lamar
RouteU.S. Route 50B
Coordinates38.09628, -102.61967
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
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
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating28.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length24 ft (7.3 m)
Longest span22 ft (6.7 m)
Deck width88 ft (26.7 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2020)
Projected traffic15,340 by 2040
Trucks13%
Lanes on structure5
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 Lamar Canal built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1962.

What condition is US 50 Ml over Lamar Canal 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 over Lamar Canal carry?

About 13,000 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is US 50 Ml over Lamar Canal?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m) and a deck 88 ft wide.

Who owns US 50 Ml over Lamar Canal?

It is owned by the State Highway Agency.