US Bridges

US-550 over Rio Grande River

Good

Sandoval County, New Mexico · 1.4 M N JCT I-25/US-550 · Structure no. 000000000009788

Built
2019
6 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
689 ft
5 main spans
Daily traffic
536
2018 count
Owner
State
State Highway Agency

About this bridge

US-550 over Rio Grande River is a steel continuous stringer/multi-beam or girder carrying US-550 over Rio Grande River in Sandoval County, New Mexico. It was built in 2019, so it is 6 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 536 vehicles a day, projected to reach 600 by 2038. The structure is 689 ft (210.1 m) long and 62 ft wide.

CarriesUS-550
CrossesRio Grande River
Location1.4 M N JCT I-25/US-550
RouteU.S. Route 550
Coordinates39.32211, -106.55628
Functional classUrban Other Principal 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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length689 ft (210.1 m)
Longest span184 ft (56.1 m)
Deck width62 ft (19 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deck0 ft (0 m)

Traffic and service

Average daily traffic536 (2018)
Projected traffic600 by 2038
Trucks—
Lanes on structure3
Traffic directionOne-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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-550 over Rio Grande River built?

It was built in 2019, making it 6 years old in 2025.

What condition is US-550 over Rio Grande River 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 August 2023.

How much traffic does US-550 over Rio Grande River carry?

About 536 vehicles per day (2018 count).

How long is US-550 over Rio Grande River?

The structure is 689 ft (210.1 m) long with a longest span of 184 ft (56.1 m) and a deck 62 ft wide.

Who owns US-550 over Rio Grande River?

It is owned by the State Highway Agency.