HomeMy WebLinkAbout05 - Lower Buck Gully Restoration - Award of ContractAgenda Item No. 5
August 9, 2011
TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: Public Works Department
Stephen G. Badum, Public Works Director
949 - 644 -3311, sbadum(cDnewportbeachca.gov
PREPARED BY: Bob Stein, Assistant City Engineer
Iris Lee, Senior Civil Engineer
APPROVED: J� D. �✓�
TITLE: LOWER BUCK GULLY RESTORATION PROJECT -
AWARD OF CONTRACT NO. 3780
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As part of an effort to restore the Lower Buck Gully natural stream and stabilize the streambed,
staff requests City Council approval to award the Lower Buck Gully Restoration Project to
Environmental Construction, Inc.
RECOMMENDATIONS:
1. Approve the project drawings and specifications,
2. Award Contract No. 3780 to Environmental Construction, Inc. for the total bid price of
$1,188,558.36 and authorize the Mayor and the City Clerk to execute the contract, and
3. Establish a contingency of $181,441.64 (approximately 15 percent) to cover the cost of
unforeseen work.
FUNDING REQUIREMENTS:
The adopted budget includes sufficient funds for this contract.
Account Description Account Number Amount
Environmental Contributions 7255- C5002002 $ 705,000.00
General Fund 7014- C5002002 672,000.00
Total $ 1,377,000.00
LOWER BUCK GULLY RESTORATION PROJECT- AWARD OF CONTRACT NO. 3780
August 09, 2011
Page 2
Proposed uses are as follows:
Vendor Purpose Amount
Environmental Construction, Inc. Construction Contract $ 1,188,558.36
Environmental Construction, Inc. Construction Contingency 181,441.64
GMU Geotechnical, Inc. Geotechnical Services 7,000.00
Total $ 1,377,000.00
DISCUSSION:
At 10:00 a.m. on July 14, 2011, the City Clerk opened and read the following bids for the Lower
Buck Gully Channel Restoration Project:
BIDDER
Low Environmental Construction, Inc.
2 Los Angeles Engineering, Inc.
3 Bert W. Salas, Inc.
4 Excavating Engineers, Inc.
5 Rock Structures Construction Co.
6 Griffith Company
7 Clarke Contracting Corporation
TOTAL BID AMOUNT
$1,188,558.36
$1,200,619.00
$1,277,080.00
$1,323,835.00
$1,349,275.00
$1,781,300.00
$1,796,795.00
`As -bid amount is $1,179,565.55
The total bid amount is approximately 18 percent below the Engineer's Estimate of $1,450,000.
The disparity between the estimate and the actual bid perhaps reflects a continuing competitive
construction market.
A portion of the costs, $705,000.00, will be funded through a grant from the State Water Resource
Control Board as this project will improve water quality entering the sensitive marine life area at
Little Corona Beach.
The work for this contract includes the grading of a construction road into the canyon, grading to
restore the steambed near the center of the canyon, installing rock - filled gabion grade control
structures and bendway weirs to guide flows within the center of the canyon, subsurface
wetland filters for water quality improvement, and revegetating the canyon with California native
plant materials.
The low bidder, Environmental Construction, Inc., possesses a California State Contractors
License Classification "A" and "C -27" as required by the project specifications. A check of
Environmental Construction, Inc. references indicates satisfactory completion of projects with
similar components in other municipalities.
LOWER BUCK GULLY RESTORATION PROJECT - AWARD OF CONTRACT NO. 3780
August 09, 2011
Page 3
Pursuant to the contract specifications, Environmental Construction, Inc. will have 80
consecutive working days to complete the work followed by 120 consecutive calendar days for
plant maintenance and establishment.
A 15 percent contingency is recommended for this project. The allowable construction window
for work the canyon does not open until mid - September. As we have experienced large October
storms in 2004 and 2010, construction in and around the canyon streambed will be complicated
and delayed if the inclement weather occurs. This in turn could increase costs.
Construction services, including biological survey and water quality testing, will be performed by
the RBF Consultants, the design consultants. The cost is expected to be approximately $60,000
and will be paid under a separate professional services agreement.
ENVIRONMENTAL REVIEW:
The City - prepared Mitigated Negative Declaration for the Lower Buck Gully Restoration Project
was adopted by City Council on January 25, 2011.
NOTICING:
The agenda item has been noticed according to the Brown Act (72 hours in advance of the
meeting at which the City Council considers the item). The Notice Inviting Bids was advertised in
the City's official publication and in construction industry publications.
In addition to the number of informal discussions with individual community members, staff also
conducted two public information sessions (March 24, 2010 and April 7, 2010), one door -to -door
property owner visit (October 19, 2010), and prepared a project status update mailer (February
17, 2011).
Submitted by:
Location Map
Project Site
PROJECT LOCATION MAP
LOWER BUCK GULLY RESTORATION PROJECT
AWARD OF CONTRACT NO. C3780
CM OF NEW PORT BEACH