The recent underground work on the Stockton Avenue Rehabilitation Project called for three field changes required for the installation of water line.
One was an unknown connection near the Thompson Building Materials property that was necessary for onsite service for those facilities.
“The connection required a new backflow so a new meter could be installed on the service,” according to Senior Civil Engineer Sarah Collins in her report at the Jan. 11 Ripon City Council meeting.
The other was a water line connection at the Modesto Irrigation District property that required additional investigation and changes before the work there could be completed.
“Previously, staff believed there was a 12-inch fire safety lateral and a separate 6-inch fire hydrant lateral running parallel to one another,” she added.
Instead, a single 10-inch water line from the main on a 10- by- 6-inch tee was connected to the fire hydrant – the work by D.A. Wood Construction Inc. consisted of the fire hydrant being connected and fed from the fire safety lateral, which was corrected.
Additional cost accounted for the exploration time, material and labor.
During the excavation around Fifth Street, in preparation for an upcoming water line tie-in, the contractor came across the PG&E transmission line that was in conflict with the new water line location.
“Going above the PG&E line would not have provided sufficient coverage for the water line so the pipe needed to be constructed below the PG&E line at a depth of 7 feet to provide sufficient separation from the transmission line,” Collins noted.
The latest change order came up to $24,300, which will be paid out of the Water Enterprise Capital Fund.
The Stockton Avenue Rehabilitation Project is expected to completed in the spring. This is a complete reconstruction of Stockton Avenue from Second Street to Doak Boulevard.
Besides the repair and replacement of underground utilities, D.A. Woods Construction Inc. – awarded the project back in February – will handle the installation of concrete pavers, new streetlights, and 6-foot sidewalks, to name a few.
Cost thus far is about $5.2 million with funding sources coming from the RSTP Grant, Measure K Regional Arterial, Sewer Enterprise Capital, Stormwater Enterprise Capital and Water Enterprise Capital.
