US Bridges

NM-104 over Pajarito Creek

Fair

Quay County, New Mexico · 3.0 MI NW of JCT LOOP-36 · Structure no. 000000000007522

Built
1951
74 years old, rebuilt 1978
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
383 ft
8 main spans
Daily traffic
243
2023 count
Owner
State
State Highway Agency

About this bridge

NM-104 over Pajarito Creek is a steel continuous stringer/multi-beam or girder carrying NM-104 over Pajarito Creek in Quay County, New Mexico. It was built in 1951 and reconstructed in 1978, so it is 74 years old, older 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 5 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 243 vehicles a day, roughly 11% of them trucks, projected to reach 330 by 2043. The structure is 383 ft (116.7 m) long and 47 ft wide. If it were closed, the detour would be 87 mi (140 km).

CarriesNM-104
CrossesPajarito Creek
Location3.0 MI NW of JCT LOOP-36
RouteState Highway 104
Coordinates35.21118, -103.74243
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.6 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length383 ft (116.7 m)
Longest span50 ft (15.2 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic243 (2023)
Projected traffic330 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed87 mi (140 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-104 over Pajarito Creek built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 1978.

What condition is NM-104 over Pajarito Creek 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 February 2025.

How much traffic does NM-104 over Pajarito Creek carry?

About 243 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-104 over Pajarito Creek?

The structure is 383 ft (116.7 m) long with a longest span of 50 ft (15.2 m) and a deck 47 ft wide.

Who owns NM-104 over Pajarito Creek?

It is owned by the State Highway Agency.