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NDOT Unveils the Final Phase of Project Neon Work in Las Vegas

Post Date:02/22/2018 12:53 PM

LAS VEGAS, NEV. – The Nevada Department of Transportation (NDOT) announces the third and final major phase of work for Project Neon – a nearly $1 billion 4-mile-long widening of Interstate 15 from the U.S. 95 interchange to Sahara Avenue that broke ground in 2016. Kiewit Infrastructure West Co. is the design-build general contractor, with Atkins North America as lead designer.

“The Main Event,” as it’s being nicknamed, will be the last and most impactful portion of project construction, entailing Interstate 15 restrictions between Sahara and Washington avenues, a half dozen U.S. Highway 95 weekend closures, “Spaghetti Bowl” ramp reductions and detours, plus long-term ramp impacts at Charleston Boulevard, D Street, and Martin Luther King Boulevard. The closures are needed for building new freeway travel lanes, on and off-ramps and 14 bridges. Project Neon is nearly 60 percent complete, with anticipated completion in the summer 2019. It remains on-time and within budget.

“Project Neon will reduce travel delays by nearly 30 percent for a $110 million annual savings through increased productivity,” said NDOT Senior Project Manager Dale Keller. “It will also improve air quality due to less idle time and vehicle exhaust while enhancing motorist safety from reduced merge and weave traffic.”

Main Event major closures include the following:

Interstate 15 Mainline Impacts

March 6 – November 20

  • Interstate 15 north and southbound will be reduced to three lanes in each direction between Sahara and Washington avenues, and reduced to two lanes near the Spaghetti Bowl for 250 days.

March 9 – 12, April, May, July, August, September

  • U.S. Highway 95 north and southbound will be closed over six weekends at the Spaghetti Bowl.

Spaghetti Bowl Ramp Impacts

Ongoing – December

  • U.S. Highway 95 southbound to Interstate 15 northbound ramp closed for 400 days.

March 3 – December

  • U.S. Highway 95 southbound to Interstate 15 southbound ramp reduced to one lane and detoured for 250 days

Mid-March – Mid-April

  • U.S. Highway 95 northbound to Interstate 15 southbound ramp closed for 30 days.

Local Street Impacts

Charleston Boulevard Ramps

Ongoing – March 2

  • Interstate 15 northbound offramp to eastbound Charleston Boulevard closed for 30 days.

Ongoing – March 6

  • Interstate 15 southbound offramp to Charleston Boulevard closed for 45 days.

Ongoing – October 10

  • Charleston Boulevard onramp to Interstate 15 southbound closed for 200 days. (Pinto Lane onramp, however, opens March 6).

Martin Luther King Boulevard Ramps

March – December

  • Martin Luther King Boulevard onramp to U.S. Highway 95 southbound closed for 300 days.
  • Martin Luther King Boulevard onramp to Interstate 15 southbound closed for 300 days.

D Street Ramps

March – July          

  • D Street onramp to Interstate 15 southbound closed for 145 days.

July – November

  • Interstate 15 northbound offramp to D Street will be closed for 145 days.

Project officials are coordinating freeway access with first responders as well as the Las Vegas Motor Speedway, City of Las Vegas and Las Vegas Convention Visitors Authority (LVCVA), among others, for special events such as NASCAR weekend and the Electric Daisy Festival. Additionally, project staff is communicating and strategizing with FAST (Freeway and Arterial System of Transportation) about digital sign notifications as well as ramp and signal timing during Main Event closures. It will closely monitor freeway corridors and traffic signals through digital feed cameras, making real time adjustments as necessary, depending upon the ebb and flow of traffic.

Motorists should use caution while travelling through the work zone, heed construction signage, and take alternate detour routes, if possible. Check the Project Neon website ( or Facebook, LinkedIn, and Twitter pages (@NDOTProjectNeon) for up to date information. There is also a free smart phone app available, plus a hotline available in both English and Spanish at: 702-293-NEON (6366). NDOT works to inform the public about planned highway restrictions, but unscheduled construction changes, closures and restrictions are possible due to weather or other factors. For the latest state highway conditions, visit or call 511 before driving.

2018 Traffic Impacts_March to July_2018

2018 Traffic Impacts_July to Nov_

2018 Traffic Impacts_Charleston 2018_

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