I 15N
I 15N in Las Vegas, Clark County, Nevada received a condition grade of B (74/100). Built in 1994, the bridge carries 122K vehicles daily on I 15N over Sr591 Spring Mtn RD.
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 15N is a 32-year-old bridge located Las Vegas in Clark County, Nevada. The bridge carries I 15N over Sr591 Spring Mtn RD with 6 traffic lanes, handling approximately 122K vehicles per day. Built in 1994, the structure spans 70.4 meters.
The bridge received a Condition Grade of B (74/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 7/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I 15N has a Condition Score of 74/100 (Grade B). Its deck is rated 6/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
I 15N was built in 1994, making it 32 years old. The average bridge age in the United States is 48 years.
I 15N carries approximately 122K vehicles per day (average daily traffic). The bridge has 6 traffic lanes. It is 70.4 meters long and located on I 15N in Las Vegas, Clark County, Nevada.
No, I 15N 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 15N is located Las Vegas in Clark County, Nevada. The bridge carries I 15N over Sr591 Spring Mtn RD. Its coordinates are 36.126178, -115.180389. It is maintained by State Highway Agency.
I 15N carries I 15N over Sr591 Spring Mtn RD. The bridge is 70.4 meters long and was built in 1994.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.