US Bridges

NM-502 over Unnamed Waterway

Fair

Santa Fe County, New Mexico · 2.2 M W of US 84/285 · Structure no. 000000000009710

Built
2011
14 years old
Condition
Fair
inspected February 2024
Type
Culvert
Steel
Length
85 ft
6 main spans
Daily traffic
16,841
2023 count
Owner
State
State Highway Agency

About this bridge

NM-502 over Unnamed Waterway is a steel culvert carrying NM-502 over Unnamed Waterway in Santa Fe 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 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 16,841 vehicles a day, roughly 17% of them trucks, projected to reach 22,903 by 2043. The structure is 85 ft (25.9 m) long and 87 ft wide.

Location

Open in Google Maps
CarriesNM-502
CrossesUnnamed Waterway
Location2.2 M W of US 84/285
RouteU.S. Route 502
CountySanta Fe County
StateNew Mexico
Coordinates35.88086, -106.06194
Functional classRural Principal Arterial - Other

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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable 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
MaterialSteel
DeckNot applicable
Main spans6
Design loadHL 93
Structure length85 ft (25.9 m)
Longest span6 ft (1.8 m)
Deck width87 ft (26.5 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,841 (2023)
Projected traffic22,903 by 2043
Trucks17%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 NM-502 over Unnamed Waterway built?

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

What condition is NM-502 over Unnamed Waterway 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 2024.

How much traffic does NM-502 over Unnamed Waterway carry?

About 16,841 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is NM-502 over Unnamed Waterway?

The structure is 85 ft (25.9 m) long with a longest span of 6 ft (1.8 m) and a deck 87 ft wide.

Who owns NM-502 over Unnamed Waterway?

It is owned by the State Highway Agency.