Riverside County voters will decide Tuesday, Nov. 3, whether to extend a half-cent transportation sales tax indefinitely or let it expire in 2039.

Measure A, first approved in 1988 and renewed in 2002, funds road repairs, highway improvements and public transit across the county. The Riverside County Transportation Commission (RCTC) placed the renewal on the ballot by resolution, according to Patch. The measure would not raise the current sales tax rate.

It needs a two-thirds supermajority to pass.

What the tax pays for

RCTC said in a June 10 news release that the tax has generated more than $3.1 billion for transportation projects since its inception. Opponents writing in the county voter guide put the figure at almost $5 billion, according to Patch. The commission estimates the renewed measure would generate about $280 million a year.

Measure A revenue has gone toward pothole repairs, lane additions, sidewalk installations, railroad crossing safety measures and bridge repairs, Patch reported. RCTC and other agencies have also joined in projects to establish express lanes on the 91 Freeway and Interstate 15 and to widen and reconfigure transition ramps, according to campaign literature cited by Patch.

For western Riverside County, the RCTC's renewal fact sheet projects $5.6 billion for highways and regional corridors, $2.7 billion for local streets and roads, and $1.1 billion for public transportation through 2057.

What's happening on I-15

Separately from Measure A, RCTC and Caltrans on June 1 activated California's first Smart Freeway system along an eight-mile stretch of northbound I-15 between the Riverside/San Diego County line in Temecula and the I-15/I-215 interchange in Murrieta.

That $33 million pilot was funded by federal, state and local sources. Ramp meters at Temecula Parkway, Rancho California Road and Winchester Road now coordinate traffic entering the freeway during peak hours.

"Building our way out of traffic congestion is not an option," RCTC Chair Raymond Gregory said in the Smart Freeway announcement. "In today's environment of rapid growth, we must look at how we can combine technology with existing infrastructure to improve the driving experience."

RCTC's broader Traffic Relief Plan, reported by the Press-Enterprise, identified more than $30 billion in potential projects countywide. Locally, the plan calls for finishing the French Valley Parkway interchange in Temecula, including widening ramps, adding a bridge over the I-15 and completing the highway between Jefferson Avenue and Ynez Road.

Supporters vs. opponents

Supporters said in campaign literature that the measure would "cut traffic, speed up road repairs and make it cheaper, faster, safer and easier to get around Riverside County -- without raising taxes," according to Patch.

RCTC Executive Director Aaron Hake said in the June news release that local sales tax funding "stays in Riverside County, allowing our communities to address local transportation priorities" and attract additional state and federal dollars.

Opponents struck a different tone in the county voter guide. "Riverside County still suffers from severe congestion, deteriorating roads and major transportation bottlenecks (despite Measure A)," they wrote, according to Patch. They argued the extension removes the sunset date without delivering new results.

What happens either way

If the measure fails, the existing half-cent tax stays in place until 2039. No tax increase is proposed regardless of the outcome; any future rate change would require a separate voter-approved measure.

If approved, the renewal would add a Taxpayer Oversight Committee alongside existing accountability provisions, including annual audits and restrictions limiting funds to transportation projects within Riverside County, according to the RCTC fact sheet.