INTERSTATE 15
INTERSTATE 15 in 11-Sd-015-R6.03-Sd, San Diego County, California received a condition grade of B (78/100). Built in 1986, the bridge carries 185K vehicles daily on INTERSTATE 15 over Camino Del Rio South.
INTERSTATE 15 carries a B on the BridgeSafety Condition Score with 78/100. 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 1986, making it 40 years old — past the early-life period but still well within typical service life. Routine inspections and modest repair work are normal for bridges in this age band. INTERSTATE 15 carries an average daily traffic count of 185,000 vehicles, with 8 lane(s) crossing Camino Del Rio South. 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
INTERSTATE 15 is a 40-year-old bridge located 11-Sd-015-R6.03-Sd in San Diego County, California. The bridge carries INTERSTATE 15 over Camino Del Rio South with 8 traffic lanes, handling approximately 185K vehicles per day. Built in 1986, the structure spans 41.8 meters.
The bridge received a Condition Grade of B (78/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 7/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
INTERSTATE 15 has a Condition Score of 78/100 (Grade B). Its deck is rated 7/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
INTERSTATE 15 was built in 1986, making it 40 years old. The average bridge age in the United States is 48 years.
INTERSTATE 15 carries approximately 185K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 41.8 meters long and located on INTERSTATE 15 in 11-Sd-015-R6.03-Sd, San Diego County, California.
No, INTERSTATE 15 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
INTERSTATE 15 is located 11-Sd-015-R6.03-Sd in San Diego County, California. The bridge carries INTERSTATE 15 over Camino Del Rio South. Its coordinates are 32.777092, -117.111631. It is maintained by State Highway Agency.
INTERSTATE 15 carries INTERSTATE 15 over Camino Del Rio South. The bridge is 41.8 meters long and was built in 1986.
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.