US Bridges

SH 71 Ml over Highline Canal

Good

Otero County, Colorado · 1.1 MI No of JCT SH 10 · Structure no. M-22-NA

Built
2021
4 years old
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
510
2018 count
Owner
State
State Highway Agency

About this bridge

SH 71 Ml over Highline Canal is a prestressed concrete box beam or girders - multiple carrying SH 71 Ml over Highline Canal in Otero County, Colorado. It was built in 2021, so it is 4 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 510 vehicles a day, roughly 13% of them trucks, projected to reach 694 by 2038. The structure is 43 ft (13 m) long and 35 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSH 71 Ml
CrossesHighline Canal
Location1.1 MI No of JCT SH 10
RouteState Highway 71B
Coordinates37.99853, -103.72018
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103.6 US tons
Inventory rating78.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length43 ft (13 m)
Longest span40 ft (12.2 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic510 (2018)
Projected traffic694 by 2038
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 SH 71 Ml over Highline Canal built?

It was built in 2021, making it 4 years old in 2025.

What condition is SH 71 Ml over Highline 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 January 2024.

How much traffic does SH 71 Ml over Highline Canal carry?

About 510 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is SH 71 Ml over Highline Canal?

The structure is 43 ft (13 m) long with a longest span of 40 ft (12.2 m) and a deck 35 ft wide.

Who owns SH 71 Ml over Highline Canal?

It is owned by the State Highway Agency.