US Bridges

IRR/NM-30 over Unnamed Waterway

Good

Santa Fe County, New Mexico · 24.40 MI North JCT NM-502 · Structure no. 000000000007426

Built
1973
52 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
43 ft
4 main spans
Daily traffic
8,929
2023 count
Owner
State
State Highway Agency

About this bridge

IRR/NM-30 over Unnamed Waterway is a concrete culvert carrying IRR/NM-30 over Unnamed Waterway in Santa Fe County, New Mexico. It was built in 1973, so it is 52 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 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 43 ft (13.1 m) long. If it were closed, the detour would be 24.9 mi (40 km).

CarriesIRR/NM-30
CrossesUnnamed Waterway
Location24.40 MI North JCT NM-502
RouteState Highway 30
Coordinates35.91095, -106.12787
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.7 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 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
CrossesWaterway
Detour if closed24.9 mi (40 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR/NM-30 over Unnamed Waterway built?

It was built in 1973, making it 52 years old in 2025.

What condition is IRR/NM-30 over Unnamed Waterway 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 2024.

How much traffic does IRR/NM-30 over Unnamed Waterway carry?

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

How long is IRR/NM-30 over Unnamed Waterway?

The structure is 43 ft (13.1 m) long with a longest span of 10 ft (3 m).

Who owns IRR/NM-30 over Unnamed Waterway?

It is owned by the State Highway Agency.