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Item # 14
City of Santa Ana
20 Civic Center Plaza, Santa Ana, CA 92701
Staff Report
March 21, 2023
TOPIC: Lincoln Avenue Water and Sewer Main Improvements
AGENDA TITLE
Approve an Amendment to the Project Cost Analysis to Add $343,000 to an Existing
Construction Contract with Big Ben, Inc. for a Revised Estimated Project Delivery Cost
of $2,343,000, for the Lincoln Avenue Water and Sewer Main Improvements Project
(Project Nos. 22-6468 and 22-6620) (Non-General Fund)
RECOMMENDED ACTION
Approve an amendment to the Project Cost Analysis to reflect the new amount of
$571,235 for project contingency for unanticipated or unforeseen work, for a total
construction delivery cost of $2,343,000, subject to non-substantive changes approved
by the City Manager and City Attorney.
DISCUSSION
On April 19, 2022, the City Council authorized the award of a construction contract to
Big Ben, Inc. to construct new Water, Sewer, and Street Improvements (Exhibit 1).
During construction, unforeseen obstructions were found underground that required
removal to continue with the underground water and sewer improvements. The project
is located next to a railroad track where miscellaneous concrete slab, rebar, and box
culvert were buried under Lincoln Avenue and were in the way of the new water and
sewer line alignment and street improvement. As a result of the extensive excavations
caused by the unforeseen obstructions, the National Pollutant Discharge Elimination
System (NPDES) regulations were triggered, requiring the project to add a stormwater
treatment unit “filterra” to treat the water runoff into the City storm drain.
Approval of the recommended action will allow completion of the project including
change orders and additional required work. The recommended action will increase the
contract project contingency by $343,000, thereby increasing the total estimated
construction delivery cost to $2,343,000, as summarized in the table below:
Project Item Current Total New Total
Construction Contract $1,453,765 $1,453,765
Construction, Administration, Inspection, Testing $218,000 $218,000
Contingencies $228,235 $571,235
Water Engineering $100,000 $100,000
TOTAL CONSTRUCTION DELIVERY COST $2,000,000 $2,343,000
Lincoln Avenue Water and Sewer Main Improvements
March 21, 2023
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FISCAL IMPACT
Funds for this action have been transferred from previously appropriated funds for the
Fisher Park Neighborhood Water Improvements Project (Project No. 19-6429) to the
Lincoln Avenue Water and Sewer Main Improvements Project (Project Nos. 22-6468
and 22-6620) and are available for expenditure in the current Fiscal year 2022-23 as
shown below:
Fiscal
Year
Accounting Unit
– Account #
Fund
Description
Accounting Unit -
Account No.
Description
Amount
Prior Authorized Funds
2021-22 06617647-66301
(22-6468)
Acquisition &
Construction
Water Utility Capital
Projects, Water
Capital Project
$1,643,000
2021-22 05417647-66220
(22-6620)
Sanitary Sewer
Capital
Capital Recovery
Charges,
Improvements Other
than Building
$700,000
Total Contract Amount $2,343,000
EXHIBIT(S)
1. Location Map
Submitted By: Nabil Saba, P. E., Executive Director - Public Works Agency
Approved By: Kristine Ridge, City Manager
PWA
SANTA ANA
PUBLIC WORKS AGENCY
Project Nos. 22-6468 & 22-6620:
Lincoln Avenue Water & Sewer Improvements
Exhibit 1
PROJECT
LOCATION