Project Overview

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.

 Project features include:

• 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 11 general-purpose lanes 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 

Current and Upcoming Restrictions

8:00 p.m. Sunday, Dec. 7 to 5:00 a.m. Monday, Dec. 8

• Blue Diamond Rd on-ramp to northbound I-15 closed
• Eastbound Blue Diamond Rd to northbound I-15 flyover will remain open

Nightly (8:00 p.m. to 5:00 a.m.) Monday, Dec. 8 and Tuesday, Dec. 9 (2 nights):

• Blue Diamond Rd on-ramp to southbound I-15 closed

8:00 p.m. Tuesday, Dec. 9 to 5:00 a.m. Wednesday, Dec. 10

• St. Rose Pkwy on-ramp to northbound I-15 closed

8:00 p.m. Thursday, Dec. 11 to 5:00 a.m. Friday, Dec. 12

• North and southbound I-15 reduced to one lane between Starr Ave and Sloan Rd

Funding

The total cost for construction is $81 M. The project is paid for with 95% federal and 5% state funds. Funding sources include National Highway Performance Program (NHPP), Surface Transportation Block (STBG) and PROTECT Program grants, and state gas tax.

Contractor

Fisher Industries

Schedule

Below is a general overview of the construction schedule. The schedule is subject to change.

January-June 2024 (Complete): 

• Earthwork and widening SB I-15 from St. Rose Pkwy. to Sloan Rd.
• Earthwork and widening SB I-15 from St. Rose
• Concrete grinding at the Sloan Rd. interchange
• Drainage and electrical improvements
• Bridge resurfacing at Blue Diamond Rd.
• Begin forming sound walls

July-December 2024 (Complete):

• Drainage and electrical improvements
• Forming sound walls
• Installing overhead signs
• Rock landscaping
• Fence and guard rail installation

January-June 2025 (Complete):

• Earthwork and widening NB I-15 from Cactus Ave. to Silverado Ranch Blvd.
• Earthwork and widening SB Blue Diamond Rd to Silverado Ranch Blvd.
• Earthwork and widening both SB and NB I-15 from St. Rose Pkwy. to Silverado Ranch Blvd.
• Earthwork and widening NB I-15 from Sloan Rd. to St. Rose Pkwy.
• Drainage and electrical improvements
• Forming sound walls
• Rock landscaping
• Fence and guard rail installation
• Installing overhead signs

July-December 2025:

• Mill and fill existing asphalt NB and SB from Warm Springs Rd. to Sloan Rd.
• Electrical improvements
• Rock landscaping
• Fence and guard rail installation

Traffic Control

Project working hours are nightly, Sunday nights starting at 8 p.m. through Friday evenings at 5 p.m.

• Drivers can expect lane shifts and lane reductions to occur with a reduced speed of 55 MPH.
• During daytime hours, Monday-Friday from 5 a.m. to 8 p.m., three lanes of traffic will be maintained in each direction. 
• Traffic will be reduced to one lane of traffic in each direction nightly, Sunday-Friday 8 p.m. to 5 a.m.

Project Background

In 2008, an Environmental Assessment (EA) was prepared for the I-15 South Corridor Improvement Project, addressing the environmental effects of improvements along the I-15 corridor, including a portion of Las Vegas Boulevard South, between Sloan Road and Tropicana Avenue. A Finding of No Significant Impact (FONSI) for the overall project was approved by the Federal Highway Administration on April 20, 2009.

In 2022, a reevaluation of the I-15 South EA and FONSI was done to consider changing conditions and new issues that have transpired over the last several years within the I-15 South project area. The reevaluation of effects of the Phase 2 improvements was approved by FHWA and the project immediately moved forward into design. Design plans were finalized in the summer of 2023.

I-15 South Corridor Improvement Project EA_2008 

I-15 South FONSI – FHWA_2009

Reevaluation_2023

Public Meeting Presentation_November 2022

Contact 

NDOT Project Manager: Mauricio Cardenas, P.E.
mcardenas@dot.nv.gov
(702) 671-8876 

NDOT Acting Resident Engineer: Shawn Meagher 
shawn.meagher@constructnv.com
(702) 481-2362

For noise complaints, please contact Kevin Van Riel with Fisher Industries at (702) 219-3375 or kvanriel@fisherind.com.