US Bridges

51-013 over Aleman Draw

Good

Sierra County, New Mexico · 12.7 MI S of NM-51 Engle · Structure no. 000000000009441

Built
2009
16 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
125 ft
1 main span
Daily traffic
92
2023 count
Owner
County
County Highway Agency

About this bridge

51-013 over Aleman Draw is a prestressed concrete box beam or girders - multiple carrying 51-013 over Aleman Draw in Sierra County, New Mexico. It was built in 2009, so it is 16 years old, younger than the New Mexico average of 51.5 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 92 vehicles a day, roughly 10% of them trucks, projected to reach 125 by 2043. The structure is 125 ft (38.1 m) long and 35 ft wide. If it were closed, the detour would be 92 mi (148 km).

Carries51-013
CrossesAleman Draw
Location12.7 MI S of NM-51 Engle
RouteCounty Highway 51013
Coordinates32.99854, -107.00806
Functional classRural Minor 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 protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.9 US tons
Inventory rating37.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length125 ft (38.1 m)
Longest span125 ft (38.1 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic92 (2023)
Projected traffic125 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed92 mi (148 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 51-013 over Aleman Draw built?

It was built in 2009, making it 16 years old in 2025.

What condition is 51-013 over Aleman Draw 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 October 2023.

How much traffic does 51-013 over Aleman Draw carry?

About 92 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 51-013 over Aleman Draw?

The structure is 125 ft (38.1 m) long with a longest span of 125 ft (38.1 m) and a deck 35 ft wide.

Who owns 51-013 over Aleman Draw?

It is owned by the County Highway Agency.