US Bridges

US 50 Ml over BNSF RR

Fair

Bent County, Colorado · W. Edge of Las Animas · Structure no. L-24-AB

Built
1989
36 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
173 ft
3 main spans
Daily traffic
3,400
2020 count
Owner
State
State Highway Agency

About this bridge

US 50 Ml over BNSF RR is a steel continuous stringer/multi-beam or girder carrying US 50 Ml over BNSF RR in Bent 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 3,400 vehicles a day, roughly 12% of them trucks, projected to reach 3,434 by 2040. The structure is 173 ft (52.7 m) long and 47 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 50 Ml
CrossesBNSF RR
LocationW. Edge of Las Animas
RouteU.S. Route 50B
Coordinates38.06267, -103.23963
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating98.3 US tons
Inventory rating58.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length173 ft (52.7 m)
Longest span61 ft (18.6 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,400 (2020)
Projected traffic3,434 by 2040
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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 over BNSF RR built?

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

What condition is US 50 Ml over BNSF RR 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 January 2024.

How much traffic does US 50 Ml over BNSF RR carry?

About 3,400 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is US 50 Ml over BNSF RR?

The structure is 173 ft (52.7 m) long with a longest span of 61 ft (18.6 m) and a deck 47 ft wide.

Who owns US 50 Ml over BNSF RR?

It is owned by the State Highway Agency.