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Clayton council keeps Mountaire Parkway four lanes, opts for painted markings after surface treatment
Summary
After public comment split between safety concerns and support for narrower lanes, the Clayton City Council voted 5–0 to proceed with a paving project as authorized and to use paint (rather than thermoplastic) to mark the existing four lanes on Mountaire Parkway following a surface treatment.
The Clayton City Council voted unanimously May 7 to retain four traffic lanes on Mountaire Parkway and to mark them with paint following a planned surface treatment, concluding a heated public discussion about the road’s configuration.
City Engineer Larry Theis presented options for restriping Mountaire Parkway between Marsh Creek Road and Mountaire Circle, south of the swimming pool and Cabana Club. Councilmembers debated whether to reduce the corridor from four lanes to two to calm traffic and create space for other uses. Several residents spoke during the public comment period both opposing and supporting lane reductions.
Opponents including Nancy Ahern, Tom Brassil and Kristin Brassil urged the council to reject lane reductions, citing concerns with the proposed changes. Supporters, including Ben Grover and Lewis Hunter, said they favored a reduction to slow traffic. Other residents, such as Kevin Wheeler and Shannon Cox, raised concerns and questions about the proposal’s specifics.
Councilmember Wan moved and Vice Mayor Trupiano seconded a staff-recommended compromise labeled Option 3: complete the paving project as authorized by Caltrans Local Assistance and the Contra Costa Transportation Authority and use paint (instead of typical thermoplastic) to re-mark the existing four lanes after the surface treatment. The motion passed 5–0.
Mayor Jim Diaz opened the item for public comment before the vote and the council indicated the decision was intended to respect Caltrans requirements for the project while preserving the ability to revisit striping with further study or future projects.
The council’s action directs staff to proceed under the existing authorizations; it did not adopt a policy change reducing lanes or set a timeline for any later reconfiguration. Councilmembers and staff indicated the matter could be revisited if additional traffic studies or funding for a different treatment become available.
