US Bridges

US 50 Ml Wbnd over BNSF RR

Fair

Otero County, Colorado · 1.5 MI E. of Manzanola · Structure no. L-21-CW

Built
1969
56 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
174 ft
3 main spans
Daily traffic
2,800
2020 count
Owner
State
State Highway Agency

About this bridge

US 50 Ml Wbnd over BNSF RR is a steel continuous stringer/multi-beam or girder carrying US 50 Ml Wbnd over BNSF RR in Otero County, Colorado. It was built in 1969, so it is 56 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 2,800 vehicles a day, roughly 11% of them trucks, projected to reach 2,940 by 2040. The structure is 174 ft (52.9 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 50 Ml Wbnd
CrossesBNSF RR
Location1.5 MI E. of Manzanola
RouteU.S. Route 50B
Coordinates38.10253, -103.84403
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 alignment6: Equal to present minimum criteria
Operating rating57 US tons
Inventory rating34.2 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length174 ft (52.9 m)
Longest span64 ft (19.5 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2020)
Projected traffic2,940 by 2040
Trucks11%
Lanes on structure2
Traffic directionOne-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 Wbnd over BNSF RR built?

It was built in 1969, making it 56 years old in 2025.

What condition is US 50 Ml Wbnd 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 Wbnd over BNSF RR carry?

About 2,800 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is US 50 Ml Wbnd over BNSF RR?

The structure is 174 ft (52.9 m) long with a longest span of 64 ft (19.5 m) and a deck 40 ft wide.

Who owns US 50 Ml Wbnd over BNSF RR?

It is owned by the State Highway Agency.