Safe Routes to School
County starts $1.15m Stone Valley Road sidewalk near Alamo Elementary
The $1.15 million Safe Routes to School project installs permeable walkways, high-visibility crosswalk beacons, and heritage oak root bridges east of Danville Boulevard.
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Contra Costa County Public Works engineers staked final curb alignments on Friday morning for the Stone Valley Road Safe Routes to School Sidewalk Gap Closure Project, launching an eight-week construction schedule between Austin Lane and Stone Valley Middle School in Alamo. Approved with unanimous support from the Alamo Municipal Advisory Council, the $1.15 million improvement eliminates 1,450 linear feet of unpaved roadside shoulder where students walking and biking to Alamo Elementary and Stone Valley Middle previously shared narrow asphalt edges with morning commuter traffic. Construction crews will restrict active trenching and paving work to weekday hours between 9:00 AM and 2:30 PM to avoid interfering with school drop-off and afternoon dismissal periods.
To preserve eleven mature valley oak and coast live oak trees bordering the north side of Stone Valley Road, project arborists specified suspended structural steel root bridges and porous pervious concrete panels that allow rainwater and oxygen to reach underlying root zones without heaving the walkway surface. The corridor design also incorporates natural stone-faced retaining curbs and dark-sky compliant bollard fixtures that match Alamo's semi-rural architectural guidelines.
At the Austin Lane and Angela Avenue pedestrian crossings, signal electricians will install rectangular rapid-flashing beacons paired with raised median refuge islands and tactile ADA curb ramps. Drainage crews are simultaneously regrading three roadside bioswales lined with native sedges to capture stormwater sheet flow before it enters San Ramon Creek tributaries.
Funding for the construction contract combines $820,000 in state Active Transportation Program grants with $330,000 from Alamo Area of Benefit traffic mitigation fees. Parents and residents can review weekly lane-control updates, arborist inspection logs, and detour maps on the Contra Costa County Capital Road Program portal or attend the Alamo MAC monthly briefing at the Alamo Women's Club on Danville Boulevard.
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