I-15 / Tropicana Interchange and Harmon High Occupancy Vehicle (HOV) Ramp and Hacienda HOV Ramp Project

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The I-15 / Tropicana Interchange and Harmon High Occupancy Vehicle (HOV) Ramp and Hacienda HOV Ramp Project is a joint effort project sponsored by the Nevada Department of Transportation (NDOT) and the Regional Transportation Commission of Southern Nevada (RTC). The Federal Highway Administration (FHWA) is a key partner in the process providing guidance and review of the study’s work products. See the Fact Sheet here.

Study Area

The study is currently evaluating operations and potential improvements along I-15 from Russell Road to Flamingo and east-west on Tropicana Ave, Harmon, and Hacienda from Valley View to Las Vegas Boulevard.



The project objectives are as follows:

  • Prepare an environmental review of the proposed project improvements and their potential impacts and measures to mitigate those impacts.
  • Improve the safety of the interchange and on I-15 in the vicinity of the interchange
  • Improve operations of the Tropicana interchange while enhancing the performance of the ramps and intersections. This means travelers will be able to get to their destinations faster
  • Improve HOV Access at Harmon and Hacineda
  • Determine potential impacts to local businesses and resort destinations and provide early and upfront information to those affected

Stakeholder Outreach

Stakeholder outreach is an integral component of the environmental process. State, local, and federal agencies as well as property owners, residents and business owners will be actively engaged in a Public Review process and provided opportunity for input and comment. The project will document all stakeholder outreach performed. Stakeholder outreach will continue throughout the environmental review, design, and construction phases.

The project is currently in the environmental review phase of project development. This phase ensures NDOT and FHWA compliance with the National Environmental Policy Act (NEPA).

Visit www.epa.gov/Compliance/nepa to obtain additional information on the NEPA process.