I-25 NBL
I-25 NBL in 0.5 MI S Of JCT I-25/I-40, Bernalillo County, New Mexico received a condition grade of B (62/100). Built in 1959, the bridge carries 156K vehicles daily on I-25 NBL over Mountain Road.
I-25 NBL carries a B on the BridgeSafety Condition Score with 62/100. Most component ratings are solid; one or two may show wear consistent with the structure’s age, but the bridge is not flagged as structurally deficient.
The bridge was built in 1959 and is now 67 years old, at or past the typical 50-year design life for bridges of its vintage. Maintenance and inspection cycles are correspondingly more involved than for newer structures. I-25 NBL carries an average daily traffic count of 155,949 vehicles, with 5 lane(s) crossing Mountain Road. The owning agency is State Highway Agency; bridge inspection records flow into the federal NBI database annually.
Component Ratings
The riding surface, evaluated for cracking, spalling, and wear
Beams, girders, and trusses that support the deck
Piers, abutments, and foundations below the deck
Bridge Details
About This Bridge
I-25 NBL is a 67-year-old bridge located 0.5 MI S Of JCT I-25/I-40 in Bernalillo County, New Mexico. The bridge carries I-25 NBL over Mountain Road with 5 traffic lanes, handling approximately 156K vehicles per day. Built in 1959 and reconstructed in 2002, the structure spans 51.8 meters.
The bridge received a Condition Grade of B (62/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 6/9 (fair), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I-25 NBL has a Condition Score of 62/100 (Grade B). Its deck is rated 6/9, superstructure 6/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
I-25 NBL was built in 1959 and reconstructed in 2002, making it 67 years old. The average bridge age in the United States is 48 years.
I-25 NBL carries approximately 156K vehicles per day (average daily traffic). The bridge has 5 traffic lanes. It is 51.8 meters long and located on I-25 NBL in 0.5 MI S Of JCT I-25/I-40, Bernalillo County, New Mexico.
No, I-25 NBL is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
I-25 NBL is located 0.5 MI S Of JCT I-25/I-40 in Bernalillo County, New Mexico. The bridge carries I-25 NBL over Mountain Road. Its coordinates are 35.093556, -106.633569. It is maintained by State Highway Agency.
I-25 NBL carries I-25 NBL over Mountain Road. The bridge is 51.8 meters long and was built in 1959, with reconstruction in 2002.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.
Source: FHWA National Bridge Inventory, 2026.