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The original item was published from 5/26/2023 10:18:32 AM to 6/30/2023 8:58:09 AM.

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Posted on: May 26, 2023

[ARCHIVED] Summertime Construction Activity on Diablo Road

Diablo Road Detour

As the school year wraps up, a number of construction activities will be taking place along Diablo Road that we would like to make the community aware of:

  • Eucalyptus Tree Removal: The 2023 winter storms have significantly eroded the soil around the Eucalyptus trees along the south side of Diablo Road, between Alameda Diablo and Fairway Drive. These trees were originally slated to be removed during the Diablo Culvert Replacement Project, but doing so would have extended that project timeline. The Town expects to begin removing the trees the first full week of June, which will require partial lane closures. 
  • Diablo Road Widening: The private developer of the Magee Preserve project will be widening the road in the westbound direction of Diablo Road at Green Valley Road in order to extend the westbound through lane by a couple of hundred feet. This improvement was part of the Town’s conditions for approval of the project permit, and is expected to start the first week of June. The objective is to conclude in early fall. 
  • State Park North Gate Closure: Mt. Diablo State Park has recently announced its closure of North Gate Road and have re-directed all bicycle and vehicular traffic to the South Gate Road access point. Given the construction planned on Diablo Road this summer, we recommend taking the detour route as shown on the attached map.

We have created a detour map with suggested alternate routes, as construction may require traffic stops and/or one-way traffic patterns. Drivers, bicyclists, and pedestrians may want to avoid the construction areas if possible. If you do travel through the project areas, please use caution and be prepared to stop for traffic control signage and personnel. 

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