The Nevada Department of Transportation (NDOT) began improvements along nearly nine miles of Interstate 15 (I-15) South from Sloan Road to north of Warm Springs Road in January 2024. This project will aid in improving travel-time reliability, serve proposed growth in the area by increasing local mobility and access, and enhance I-15’s operational efficiency. Construction is anticipated to be completed within a 24-month period.

• Widening I-15 from six to eight general-purpose lanes between Sloan Road and St. Rose Parkway
• Widening and restriping I-15 from six to 10 general-purpose lanes between St. Rose Parkway and Blue Diamond Road
• Adding a High Occupancy Vehicle (HOV) lane in each direction between St. Rose Parkway and Blue Diamond Road
• Resurfacing bridges and pavement preservation at the Blue Diamond Interchange
• Construction of 6 new sound walls near qualifying residential areas throughout the corridor

Daytime Ramp Closures, Lane Restrictions on I-15 South Widening Project

The Nevada Department of Transportation (NDOT) is announcing ramp closures and lane restrictions on Interstate 15 (I-15) for the ongoing I-15 South Widening Project. The following traffic restrictions are necessary for sound wall construction and temporary barrier rail relocation.

Daily (6:00 a.m. to 6:00 p.m.) Monday, December 2 to Friday, December 6:

• St. Rose Parkway on-ramp to southbound I-15 closed 

Nightly (8:00 p.m. to 5:00 a.m.) Tuesday, December 3 to Friday, December 6:

• Northbound I-15 reduced to one lane between Sloan Road and St. Rose Parkway

Nightly (8:00 p.m. to 5:00 a.m.) Wednesday, December 4 to Friday, December 6:

• Northbound I-15 off-ramp to St. Rose Parkway closed