The Issue

Residents, workers, and businesses in the Coachella Valley are experiencing severe and worsening traffic congestion along the Interstate 10 corridor, particularly at Jefferson Street and its freeway interchange. Jefferson Street is one of the primary transportation corridors connecting the cities of Indio, La Quinta, Palm Desert, and Coachella. It provides major access to Interstate 10 and serves thousands of daily commuters.

Due to ongoing congestion and construction along Jefferson Street, drivers are frequently forced to divert to nearby freeway crossings including:

Monroe Street

Jackson Street

Washington Street

Jefferson Street

As a result, these surrounding routes are now experiencing extreme congestion, compounding the regional traffic problem.

A Critical Infrastructure Issue

Several freeway bridges crossing Interstate 10—including Jefferson Street, Monroe Street, and Jackson Street—have limited traffic capacity and bottlenecks where only one lane is available in certain areas.

The Monroe Street overpass and interchange have become a central choke point for regional traffic, serving both daily commuters and high volumes of visitor traffic. These structures were built decades ago when the Coachella Valley had far fewer residents.

Today, rapid population growth and increased tourism have placed significant strain on infrastructure that has not kept pace with demand. Interstate 10 narrows in sections through the valley, further intensifying congestion at key interchanges like Jefferson Street.

Additionally, the region has limited alternate routes. When congestion builds at Jefferson, traffic backs up quickly and spreads across neighboring cities, creating widespread delays.

Impact During Major Events

Traffic congestion at Monroe Street and its Interstate 10 interchange becomes critical during major international events, including:

BNP Paribas Open

~450,000+ attendees over two weeks

Coachella Valley Music and Arts Festival

~125,000 attendees per day

~250,000+ total attendance over two weekends

Stagecoach Festival

~75,000–80,000 attendees per day

~225,000+ total attendance

These events bring hundreds of thousands of visitors into the Coachella Valley within short timeframes, placing extreme stress on freeway infrastructure. Jefferson Street serves as a primary access route for these events, causing traffic to extend onto freeway ramps, back up across overpasses, and impact multiple surrounding cities.

Impact on Local Businesses, Public Safety, and Daily Life

Severe congestion centered around Jefferson Street and Interstate 10 is negatively impacting:

Local business transportation and deliveries

Employee commute times and productivity

Access to shopping centers and essential services

Emergency response times for police, fire, and medical services

Interstate 10 is a critical emergency response corridor. When traffic becomes gridlocked, emergency vehicles face delays or must reroute, increasing response times during life-threatening situations.

Long traffic backups on freeway ramps and overpasses increase the risk of collisions and create unsafe driving conditions.

Beyond statistics, this is a daily reality. What should be a short drive often turns into long, unpredictable delays. Residents regularly experience traffic that barely moves, multiple light cycles without progress, and the need to plan their daily lives around avoiding heavily congested routes like Jefferson Street.

Environmental and Air Quality Impact

Traffic congestion along Jefferson Street, Monroe Street, Jackson Street, and Washington Street and Interstate 10 also contributes significantly to air pollution.

According to the U.S. Environmental Protection Agency, idling and stop-and-go traffic emit carbon dioxide, nitrogen oxides, and volatile organic compounds—key contributors to smog formation.

Riverside County is consistently ranked among the worst regions in the nation for ozone pollution by the American Lung Association. The Coachella Valley’s desert climate and surrounding geography trap pollutants, intensifying poor air quality.

Transportation is the largest source of greenhouse gas emissions in California, accounting for approximately 40% of total emissions according to the California Air Resources Board.

Because the over passes are a major congestion point, it becomes a concentrated source of emissions. Improving traffic flow at this location would directly reduce pollution and improve public health.

Statewide Context and Funding Priorities

California has invested billions in transportation through programs such as the Road Repair and Accountability Act of 2017. However, critical local congestion points—like the Jefferson Street interchange—remain unresolved.

At the same time, large-scale infrastructure projects such as the California High-Speed Rail have experienced substantial cost increases and delays. This raises concerns about how transportation funding is prioritized between large statewide initiatives and urgent local infrastructure needs.

What We Are Asking For

We are calling on transportation officials and government leaders to prioritize improvements to the Interstate 10 corridor, with a strong focus on Monroe Street and Jackson Street.

 

Specifically, we ask for:

Expansion of the Monroe Street and Jackson Street freeway overpass to two lanes in each direction
Improvements to the Jefferson Street and Interstate 10 interchange
Improved traffic management during major events
Accelerated infrastructure planning to support continued population growth

Decision Makers

This petition is directed to the agencies and leaders responsible for transportation planning, funding, and public safety, including:

California Department of Transportation

California Transportation Commission

Riverside County Transportation Commission

Coachella Valley Association of Governments

Southern California Association of Governments

Riverside County Board of Supervisors

City Councils of Indio, La Quinta, Palm Desert, and Coachella

Gavin Newsom

Raul Ruiz

Greg Wallis

Rosilicie Ochoa Bogh

Call to Action

The Coachella Valley continues to grow rapidly, and infrastructure must keep pace. Jefferson Street has become a central pressure point in the region’s transportation network, and without meaningful improvements, congestion, safety risks, and environmental impacts will continue to worsen.

We urge immediate action to improve the Jefferson Street corridor and surrounding Interstate 10 infrastructure before conditions deteriorate further.

Sources & Supporting Data

The following organizations and reports support the data and statements included in this petition:

U.S. Environmental Protection Agency

Vehicle emissions, idling pollution, and air quality impacts

American Lung Association

“State of the Air” reports ranking Riverside County among worst for ozone pollution

California Air Resources Board

Transportation responsible for ~40% of California greenhouse gas emissions

Coachella Valley Association of Governments

Regional transportation and emergency response planning documents for Interstate 10

Riverside County Transportation Commission

Coachella Valley Traffic Relief Plan and infrastructure planning data

Road Repair and Accountability Act of 201

State transportation funding program

California High-Speed Rail

Public cost estimates, timelines, and project reports

Event attendance estimates sourced from:

Official event organizers and regional tourism/economic impact reports for:
BNP Paribas Open
Coachella Valley Music and Arts Festival
Stagecoach Festival