SR-60/Potrero Boulevard Interchange – Phase II
Status: Pre-Construction
Location: SR-60 between Jack Rabbit Trail and the SR-60/I-10 interchange
Type of Project: Highways
Location: SR-60 between Jack Rabbit Trail and the SR-60/I-10 interchange
Construction: Early 2026 to 2028
Investment: $48.9 million (construction)
OVERVIEW
The Riverside County Transportation Commission (RCTC) and the City of Beaumont, in partnership with Caltrans, is constructing “Phase II” of the State Route 60/Potrero Boulevard Interchange Project. This phase includes construction of a six-ramp partial cloverleaf interchange, realignment of Western Knolls Avenue, and widening Potrero Boulevard to six lanes.
The City of Beaumont completed Phase I construction of a new, six-lane Potrero Boulevard overcrossing in 2019.
The project will:
- Enhance regional mobility and improve access to SR-60
- Improve air quality through reduced congestion
- Support ongoing residential and economic growth in the San Gorgonio Pass
Construction will begin in early 2026 and the new interchange is anticipated to open to drivers in 2028.
The second phase of the project is funded by state and local funding, including City of Beaumont Capital Improvement Plan (CIP) funds, Transportation Uniform Mitigation Fee (TUMF), and SB1 Trade Corridor Enhancement Program (TCEP) Program funding.
The City of Beaumont completed construction of Phase I of the project in December 2019. This included the construction of a 6-lane Potrero Boulevard overcrossing over State Route 60. Phase II of the project will begin construction in early 2026 and the new interchange is anticipated to open to motorists in 2028.
Construction of Phase II is expected to begin in early 2026. The interchange is anticipated to open to motorists in 2028.
A project-level air quality conformity analysis was prepared for the State Route 60/Potrero Boulevard New Interchange Project – Phase II. The Transportation Conformity Working Group has confirmed that the proposed Project is not a Project of Air Quality Concern. The public review and comment period began on May 9, 2025 and will end on May 23, 2025. More information is available on the Public Notice of Air Quality Conformity Analysis below.
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