US Bridges

US 160 Ml over Canal

Good

Costilla County, Colorado · @ Blanca 21 MI E of Alam · Structure no. O-14-H

Built
1970
55 years old
Condition
Good
inspected March 2023
Type
Culvert
Steel
Length
29 ft
4 main spans
Daily traffic
5,000
2020 count
Owner
State
State Highway Agency

About this bridge

US 160 Ml over Canal is a steel culvert carrying US 160 Ml over Canal in Costilla County, Colorado. It was built in 1970, so it is 55 years old, older 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 5,000 vehicles a day, roughly 11% of them trucks, projected to reach 5,550 by 2040. The structure is 29 ft (8.8 m) long and 86 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 160 Ml
CrossesCanal
Location@ Blanca 21 MI E of Alam
RouteU.S. Route 160A
Coordinates37.43471, -105.50744
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadH 20
Structure length29 ft (8.8 m)
Longest span6 ft (1.8 m)
Deck width86 ft (26.2 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2020)
Projected traffic5,550 by 2040
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$593,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 160 Ml over Canal built?

It was built in 1970, making it 55 years old in 2025.

What condition is US 160 Ml over Canal 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 March 2023.

How much traffic does US 160 Ml over Canal carry?

About 5,000 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is US 160 Ml over Canal?

The structure is 29 ft (8.8 m) long with a longest span of 6 ft (1.8 m) and a deck 86 ft wide.

Who owns US 160 Ml over Canal?

It is owned by the State Highway Agency.