US Bridges

NM-30 over NM-502

Good

Santa Fe County, New Mexico · Junction NM-30 and NM-502 · Structure no. 000000000008985

Built
1998
27 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
128 ft
1 main span
Daily traffic
8,929
2023 count
Owner
State
State Highway Agency

About this bridge

NM-30 over NM-502 is a prestressed concrete stringer/multi-beam or girder carrying NM-30 over NM-502 in Santa Fe County, New Mexico. It was built in 1998, so it is 27 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 8,929 vehicles a day, roughly 11% of them trucks, projected to reach 12,143 by 2043. The structure is 128 ft (39 m) long and 62 ft wide.

CarriesNM-30
CrossesNM-502
LocationJunction NM-30 and NM-502
RouteState Highway 30
Coordinates35.88445, -106.15372
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64.9 US tons
Inventory rating38.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length128 ft (39 m)
Longest span121 ft (37 m)
Deck width62 ft (19 m)
Roadway width59 ft (18 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,929 (2023)
Projected traffic12,143 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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-30 over NM-502 built?

It was built in 1998, making it 27 years old in 2025.

What condition is NM-30 over NM-502 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 2024.

How much traffic does NM-30 over NM-502 carry?

About 8,929 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-30 over NM-502?

The structure is 128 ft (39 m) long with a longest span of 121 ft (37 m) and a deck 62 ft wide.

Who owns NM-30 over NM-502?

It is owned by the State Highway Agency.