City of Santa Rosa image CIP

Capital Improvement Project

Cobblestone Dr Zone R2-R4 Water Main Connection

Estimated Construction Schedule: Slated to begin April, 2019 and is anticipated to be completed September, 2019.
Construction Contract Amount: Pending
Project ID #: 1999
Description: Several fire hydrants serving approximately 32 homes at the north end of Cobblestone Dr have sub-optimal fire flow ranging from approximately 752 gpm at 20 psi to 1329 gpm at 20 psi. A new 8" pipeline is proposed to connect the existing pipeline in Tillmont Way (or less likely, Kelsey Knolls) (located in the City's Pressure Zone R2) to the existing 6-inch diameter pipeline located in Cobblestone Drive (located in Pressure Zone R4). A new pressure regulator with 1 1/2" bleed (to keep water circulating) is required to maintain the pressure zone break between R2 and R4.

Andrew Wilt
Associate Civil Engineer
City of Santa Rosa

Cy Penry
Civil Engineering Tech III
City of Santa Rosa
(707) 529-9210
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Project Image

Note: All dates and times are subject to change.