MEMORANDUM
TO: Board of Supervisors
FROM: Lars Ewing, Public Services Director
DATE: May 14, 2019
SUBJECT: Consideration of Contract Change Order No. 2 for the Lower Lake Parks Maintenance Facility Project, Bid No. 18-17
EXECUTIVE SUMMARY:
The project geotechnical report for the construction of the Lower Lake Parks Maintenance Facility specified excavation of old fill and weak, porous, and compressible surface soils to a depth of approximately three feet based on soil borings performed during design. However, during excavation of the footings soft soil and water seepage were encountered that required deepening the footings beyond the plan depth. In consultation with the geotechnical engineer and project design engineer the recommended solution is to excavate the footings to a depth of five feet from finish floor and place a light-weight sand slurry concrete mix to the bottom of the planned footing depth. This change order accounts for the cost of additional excavation and placement of slurry; no additional working days are required. The increased cost to the project is $15,146.00 for a total contract cost of $746,252.00.
FISCAL IMPACT: __ None _x_Budgeted __Non-Budgeted
Estimated Cost: $746,252.00
Amount Budgeted:
Additional Requested:
Annual Cost (if planned for future years): N/A
FISCAL IMPACT (Narrative): This project is a Clayton Fire rebuild and the expenses have been submitted to the County’s insurance provider for reimbursement. Changes to the scope of the project which are within the scope of the approved Statement of Loss are typically eligible for reimbursement. These minor changes are within the scope of the Statement of Loss and are expected to be reimbursed to the County.
STAFFING IMPACT (if applicable): N/A
RECOMMENDED ACTION: Approve Contract Change Order No. 2 for the Lower Lake Parks Maintenance Facility Project, Bid No. 18-17