US Bridges

NM-185 over Angustora Arroyo

Fair

Dona Ana County, New Mexico · 17.8 MI N of NM-185 · Structure no. 000000000009546

Built
2011
14 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
112 ft
8 main spans
Daily traffic
1,376
2023 count
Owner
State
State Highway Agency

About this bridge

NM-185 over Angustora Arroyo is a concrete culvert carrying NM-185 over Angustora Arroyo in Dona Ana County, New Mexico. It was built in 2011, so it is 14 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,376 vehicles a day, roughly 11% of them trucks, projected to reach 1,871 by 2043. The structure is 112 ft (34.1 m) long. If it were closed, the detour would be 32.9 mi (53 km).

Location

Open in Google Maps
CarriesNM-185
CrossesAngustora Arroyo
Location17.8 MI N of NM-185
RouteState Highway 185
CountyDona Ana County
StateNew Mexico
Coordinates32.65427, -107.09643
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.4 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans8
Design loadHL 93
Structure length112 ft (34.1 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,376 (2023)
Projected traffic1,871 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.9 mi (53 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$300,000 (2070 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was NM-185 over Angustora Arroyo built?

It was built in 2011, making it 14 years old in 2025.

What condition is NM-185 over Angustora Arroyo in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.

How much traffic does NM-185 over Angustora Arroyo carry?

About 1,376 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-185 over Angustora Arroyo?

The structure is 112 ft (34.1 m) long with a longest span of 12 ft (3.7 m).

Who owns NM-185 over Angustora Arroyo?

It is owned by the State Highway Agency.