US Bridges

NM-169 over Alamo Creek

Good

Socorro County, New Mexico · 25.9 MI N of JCT US-60 · Structure no. 000000000008320

Built
1980
45 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
44 ft
3 main spans
Daily traffic
860
2023 count
Owner
State
State Highway Agency

About this bridge

NM-169 over Alamo Creek is a concrete culvert carrying NM-169 over Alamo Creek in Socorro County, New Mexico. It was built in 1980, so it is 45 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 860 vehicles a day, roughly 11% of them trucks, projected to reach 1,169 by 2043. The structure is 44 ft (13.4 m) long and 26 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesNM-169
CrossesAlamo Creek
Location25.9 MI N of JCT US-60
RouteState Highway 169
Coordinates34.3726, -107.4952
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span10 ft (3 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic860 (2023)
Projected traffic1,169 by 2043
Trucks11%
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NM-169 over Alamo Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is NM-169 over Alamo Creek 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 2023.

How much traffic does NM-169 over Alamo Creek carry?

About 860 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-169 over Alamo Creek?

The structure is 44 ft (13.4 m) long with a longest span of 10 ft (3 m) and a deck 26 ft wide.

Who owns NM-169 over Alamo Creek?

It is owned by the State Highway Agency.