US Bridges

US 50 Ml over Catlin Canal

Fair

Otero County, Colorado · 0.6 MI East of Manzanola · Structure no. L-21-K

Built
1969
56 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
37 ft
1 main span
Daily traffic
5,600
2020 count
Owner
State
State Highway Agency

About this bridge

US 50 Ml over Catlin Canal is a concrete culvert carrying US 50 Ml over Catlin Canal 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 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 5,600 vehicles a day, roughly 11% of them trucks, projected to reach 5,880 by 2040. The structure is 37 ft (11.3 m) long and 140 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 50 Ml
CrossesCatlin Canal
Location0.6 MI East of Manzanola
RouteU.S. Route 50B
Coordinates38.10418, -103.85705
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107 US tons
Inventory rating64 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span37 ft (11.3 m)
Deck width140 ft (42.7 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,600 (2020)
Projected traffic5,880 by 2040
Trucks11%
Lanes on structure4
Traffic directionTwo-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 over Catlin Canal built?

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

What condition is US 50 Ml over Catlin 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 January 2024.

How much traffic does US 50 Ml over Catlin Canal carry?

About 5,600 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is US 50 Ml over Catlin Canal?

The structure is 37 ft (11.3 m) long with a longest span of 37 ft (11.3 m) and a deck 140 ft wide.

Who owns US 50 Ml over Catlin Canal?

It is owned by the State Highway Agency.