I 15
I 15 in North Las Vegas, Clark County, Nevada received a condition grade of A (85/100). Built in 2009, the bridge carries 201K vehicles daily on I 15 over SR 147 Lake Mead BLVD.
I 15 carries an A on the BridgeSafety Condition Score with 85/100. 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 2009 and is 17 years old — relatively young against the U.S. bridge stock. Modern bridges built to current FHWA standards generally outperform older structures on condition ratings. I 15 carries an average daily traffic count of 201,000 vehicles, with 9 lane(s) crossing SR 147 Lake Mead BLVD. 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 17-year-old bridge located North Las Vegas in Clark County, Nevada. The bridge carries I 15 over SR 147 Lake Mead BLVD with 9 traffic lanes, handling approximately 201K vehicles per day. Built in 2009, the structure spans 60 meters.
The bridge received a Condition Grade of A (85/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 8/9 (good), and substructure 8/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I 15 has a Condition Score of 85/100 (Grade A). Its deck is rated 7/9, superstructure 8/9, and substructure 8/9 on the NBI scale. The bridge is not classified as structurally deficient.
I 15 was built in 2009, making it 17 years old. The average bridge age in the United States is 48 years.
I 15 carries approximately 201K vehicles per day (average daily traffic). The bridge has 9 traffic lanes. It is 60 meters long and located on I 15 in North 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 North Las Vegas in Clark County, Nevada. The bridge carries I 15 over SR 147 Lake Mead BLVD. Its coordinates are 36.195939, -115.138700. It is maintained by State Highway Agency.
I 15 carries I 15 over SR 147 Lake Mead BLVD. The bridge is 60 meters long and was built in 2009.
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.