RIVERSIDE, Calif. – The Riverside County Transportation Commission (RCTC) has approved more than $156 million in construction contracts for two regionally significant projects designed to improve safety and mobility in Riverside County: Mid County Parkway Ramona Expressway and SR-60/Potrero Boulevard Interchange – Phase II.

“Safe and reliable transportation is the foundation of our daily lives – connecting us to school, work, and the people who matter to us the most,” said Supervisor Karen Spiegel, RCTC Chair and Vice Chair of the Riverside County Board of Supervisors. “The Mid County Parkway Ramona Expressway will address critical safety improvements in one of the most traveled corridors in our region. Phase II of the Potrero Interchange will enhance regional mobility throughout the San Gorgonio Pass. Together, these two projects will a create a safer and more connected Riverside County for us all.”

Mid County Parkway: Major Safety Upgrades on Ramona Expressway

The Mid County Parkway (MCP) is a 16-mile corridor connecting State Route 79 in San Jacinto/Hemet with Interstate 215 in Perris. The Ramona Expressway segment of MCP is one of the region’s highest priority roadway safety improvement projects. Between 2017 and 2022, this heavily traveled corridor experienced numerous collisions resulting in 14 fatalities and 17 severe injuries.

This segment of the project spans 8.6 miles from one mile east of Rider Street to Warren Road in the City of San Jacinto. The project will address critical safety concerns by widening the roadway to two lanes in each direction and constructing a raised median, wildlife crossing, and a new bridge over the San Jacinto River.

This project is funded through a combination of Measure A sales tax, local partnership contributions, County of Riverside, and state transportation dollars supporting safety and mobility improvements. Construction is anticipated to begin in early 2026, with completion expected in 2029. Skanska USA Civil West California District Inc. was awarded a $107,382,285 construction contract.

SR-60/Potrero Boulevard Interchange: Better Access in the San Gorgonio Pass

The Commission awarded a construction contract for the State Route 60/Potrero Boulevard Interchange (Phase II) Project. The City of Beaumont has partnered with RCTC and Caltrans to deliver this next phase of the project.

Located between Jack Rabbit Trail and the State Route 60/Interstate 10 junction, Phase II improvements will include a new interchange to be built at State Route 60, along with realigned Western Knolls Avenue and a widened, six‑lane Potrero Boulevard. These improvements will enhance access to SR‑60 and support ongoing residential and economic growth in Beaumont and Riverside County.

Phase II improvements are funded through a combination of City of Beaumont Capital Improvement Plan (CIP) funds, Transportation Uniform Mitigation Fee (TUMF) funding, and a significant state investment through the SB 1 Trade Corridor Enhancement Program (TCEP), which supports freight mobility and congestion relief across California. Construction is expected to begin in early 2026 and be completed in 2028. Ames Construction, Inc. (Ames) was awarded the $48,925,559 construction contract.