Walnut Creek drivers are about to feel the next phase of a major neighborhood road project, with slurry seal work scheduled to begin Monday, June 15, on dozens of streets across the city.
The City of Walnut Creek says its contractor will start applying slurry seal on June 15 in several areas, including the Tampico, Diablo Shadows and Valley Vista neighborhoods, as well as Alfred Avenue. The city is warning residents and commuters that this final phase is expected to bring the most significant traffic impacts of the project.
That means drivers should expect temporary no-parking restrictions, lane and road closures, delays and detours. Vehicles left in posted no-parking areas during work hours may be towed, according to the city.
The work is part of Walnut Creek’s 2026 Slurry Seal Project, a pavement maintenance effort intended to extend the life of city streets. While slurry seal is not the same as a full road reconstruction, it can be disruptive while crews prepare streets, close off work zones, apply the seal and allow the surface to cure.
The first day of work, Monday, June 15, is focused around the Tampico area, including portions of Tampico, Los Vecinos, Corte Del Los Vecinos, Montezuma Court, Cortez Court and Tampico Place.
On Tuesday, June 16, impacts expand to additional portions of Tampico and nearby streets, along with parts of Firestone Drive and courts or places off Firestone, including Belvedere Court, Millbrae Court, Renwick Place and Bexley Place.
By Wednesday, June 17, drivers should watch for work on Montego between La Casa Via and Ygnacio Valley Road, additional portions of Tampico, and Diablo Shadow Drive between Stinson Circle and Firestone Drive.
Thursday, June 18, brings work on another stretch of Montego between Ygnacio Valley Road and La Casa Via, plus Diablo Shadow Drive, Stinson Circle, Caravelle Drive, Caravelle Court and Ginocchio Court.
On Friday, June 19, crews are scheduled for streets in the Valley Vista and Diablo Shadows areas, including Sutcliffe Place, Sutcliffe Court, Valley Vista Road from Oak Grove Road to Deerpark Drive, Stinson Circle, Melbourne Place, Welwyn Place and Langlie Court.
The work is scheduled to resume Monday, June 22, with impacts on Deerpark Drive, Boca Raton Court, La Quinta Court, Doral Court, Valley Vista Road, Inverness Drive and Inverness Court.
On Tuesday, June 23, the schedule includes Alfred Avenue from San Luis Road to Lakey Lane, along with Brandywine Way, Newport Court, Tamarisk Drive and Tamarisk Court.
The final listed day, Wednesday, June 24, includes Firestone Drive, Firestone Court, Pazzi Road, Valley Vista Court, multiple stretches of Valley Vista Road, Boundary Oak Way, Kit Fox Court and Golf Court.
The full project covers more than 1.16 million square feet of pavement, according to the city’s street-by-street schedule.
For most drivers, the biggest pinch points will likely be around neighborhood connections to Ygnacio Valley Road, Oak Grove Road, Deerpark Drive and Valley Vista Road, particularly when road closures or detours affect the normal route out of a subdivision.
The city says the schedule could change because of weather, equipment issues or other unforeseen circumstances. Residents along the affected streets should watch for posted signs and move vehicles before work begins.
The city says it will try to maintain access and minimize lane closures and delays where possible.
