I 15
I 15 in Las Vegas, Clark County, Nevada received a condition grade of A (81/100). Built in 2001, the bridge carries 296K vehicles daily on I 15 over Sr589 Sahara Av.
I 15 carries an A on the BridgeSafety Condition Score with 81/100. Deck, superstructure, and substructure ratings all sit in the better tier of the FHWA NBI distribution. The bridge is structurally sound by federal standards.
The bridge was built in 2001, making it 25 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. I 15 carries an average daily traffic count of 296,000 vehicles, with 10 lane(s) crossing Sr589 Sahara Av. 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 15 is a 25-year-old bridge located Las Vegas in Clark County, Nevada. The bridge carries I 15 over Sr589 Sahara Av with 10 traffic lanes, handling approximately 296K vehicles per day. Built in 2001, the structure spans 87.6 meters.
The bridge received a Condition Grade of A (81/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 8/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I 15 has a Condition Score of 81/100 (Grade A). Its deck is rated 7/9, superstructure 8/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
I 15 was built in 2001, making it 25 years old. The average bridge age in the United States is 48 years.
I 15 carries approximately 296K vehicles per day (average daily traffic). The bridge has 10 traffic lanes. It is 87.6 meters long and located on I 15 in Las Vegas, Clark County, Nevada.
No, I 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.
I 15 is located Las Vegas in Clark County, Nevada. The bridge carries I 15 over Sr589 Sahara Av. Its coordinates are 36.144083, -115.171047. It is maintained by State Highway Agency.
I 15 carries I 15 over Sr589 Sahara Av. The bridge is 87.6 meters long and was built in 2001.
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.