US Bridges

SH 71 Ml over Arkansas River

Good

Otero County, Colorado · 2.9 MI N of Rocky Ford · Structure no. L-22-LL

Built
2019
6 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
655 ft
6 main spans
Daily traffic
1,700
2020 count
Owner
State
State Highway Agency

About this bridge

SH 71 Ml over Arkansas River is a prestressed concrete continuous stringer/multi-beam or girder carrying SH 71 Ml over Arkansas River in Otero County, Colorado. It was built in 2019, so it is 6 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 1,700 vehicles a day, roughly 12% of them trucks, projected to reach 2,108 by 2040. The structure is 655 ft (199.7 m) long and 43 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesSH 71 Ml
CrossesArkansas River
Location2.9 MI N of Rocky Ford
RouteState Highway 71C
Coordinates38.10569, -103.74745
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHL 93
Structure length655 ft (199.7 m)
Longest span116 ft (35.4 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2020)
Projected traffic2,108 by 2040
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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$722,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 71 Ml over Arkansas River built?

It was built in 2019, making it 6 years old in 2025.

What condition is SH 71 Ml over Arkansas River 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 February 2025.

How much traffic does SH 71 Ml over Arkansas River carry?

About 1,700 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is SH 71 Ml over Arkansas River?

The structure is 655 ft (199.7 m) long with a longest span of 116 ft (35.4 m) and a deck 43 ft wide.

Who owns SH 71 Ml over Arkansas River?

It is owned by the State Highway Agency.