US Bridges

NM-500 Ebl over Rio Grande

Fair

Bernalillo County, New Mexico · 1.9 M W JCT I-25/NM-500 · Structure no. 000000000006224

Built
1961
64 years old, rebuilt 1985
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,415 ft
25 main spans
Daily traffic
72,734
2023 count
Owner
State
State Highway Agency

About this bridge

NM-500 Ebl over Rio Grande is a prestressed concrete stringer/multi-beam or girder carrying NM-500 Ebl over Rio Grande in Bernalillo County, New Mexico. It was built in 1961 and reconstructed in 1985, so it is 64 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 72,734 vehicles a day, roughly 13% of them trucks, projected to reach 98,918 by 2043. The structure is 1,415 ft (431.3 m) long and 43 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesNM-500 Ebl
CrossesRio Grande
Location1.9 M W JCT I-25/NM-500
RouteState Highway 500
Coordinates35.02716, -106.67174
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.1 US tons
Inventory rating39.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans25
Design loadH 15
Structure length1,415 ft (431.3 m)
Longest span55 ft (16.8 m)
Deck width43 ft (13.1 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic72,734 (2023)
Projected traffic98,918 by 2043
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
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 proposedDeck replacement with only incidental widening
Estimated improvement cost$2.1 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was NM-500 Ebl over Rio Grande built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1985.

What condition is NM-500 Ebl over Rio Grande 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 May 2024.

How much traffic does NM-500 Ebl over Rio Grande carry?

About 72,734 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is NM-500 Ebl over Rio Grande?

The structure is 1,415 ft (431.3 m) long with a longest span of 55 ft (16.8 m) and a deck 43 ft wide.

Who owns NM-500 Ebl over Rio Grande?

It is owned by the State Highway Agency.