US Bridges

US 350 Ml over Sheep Canyon Arroyo

Good

Otero County, Colorado · 6.3 Miles NE of Bloom · Structure no. N-21-FA

Built
2024
1 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
114 ft
1 main span
Daily traffic
470
2020 count
Owner
State
State Highway Agency

About this bridge

US 350 Ml over Sheep Canyon Arroyo is a prestressed concrete stringer/multi-beam or girder carrying US 350 Ml over Sheep Canyon Arroyo in Otero County, Colorado. It was built in 2024, so it is 1 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 470 vehicles a day, roughly 18% of them trucks, projected to reach 611 by 2040. The structure is 114 ft (34.6 m) long and 43 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesUS 350 Ml
CrossesSheep Canyon Arroyo
Location6.3 Miles NE of Bloom
RouteU.S. Route 350A
Coordinates37.74034, -103.86366
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating42.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length114 ft (34.6 m)
Longest span109 ft (33.2 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic470 (2020)
Projected traffic611 by 2040
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

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 350 Ml over Sheep Canyon Arroyo built?

It was built in 2024, making it 1 years old in 2025.

What condition is US 350 Ml over Sheep Canyon Arroyo in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does US 350 Ml over Sheep Canyon Arroyo carry?

About 470 vehicles per day (2020 count), of which roughly 18% are trucks.

How long is US 350 Ml over Sheep Canyon Arroyo?

The structure is 114 ft (34.6 m) long with a longest span of 109 ft (33.2 m) and a deck 43 ft wide.

Who owns US 350 Ml over Sheep Canyon Arroyo?

It is owned by the State Highway Agency.