HomeMy WebLinkAbout13 - C-3566 - Buck Gully Sewer By-Pass Siphon AbandonmentOctober 8, 2002
CITY COUNCIL AGENDA
ITEM NO. 13
TO: Mayor and Members of the City Council
FROM: Public Works Department
SUBJECT: BUCK GULLY SEWER BY- PASS /SIPHON ABANDONMENT - AWARD OF
CONTRACT NO. 3566
RECOMMENDATIONS:
1. Approve the plans and specifications.
2. Award Contract No. 3566 to Albert W. Davies for the Total Bid Price of $87,810, and
authorize the Mayor and the City Clerk to execute the contract.
3. Establish an amount of $8,700 to cover the cost of unforeseen work.
4. Authorize a Budget Amendment appropriating $96,510 from the unappropriated
Wastewater Fund Balance to Account No. 7531- C5600292
DISCUSSION:
At 2:00 P.M. on the 30"' of September, the City Clerk opened and read the following bids
for this project:
BIDDER TOTAL BID AMOUNT
Low Albert W. Davies, Inc. $87,810.00
2 GCI, Inc. $114,800.00
3 Caliagua, Inc $177,895.00
4 Paulus Engineering, Inc. $185,065.00
A mandatory pre -bid meeting was held for this project to discuss the difficult terrain at the
location and the coordination necessary with the construction of a new house adjacent to
the site. Although seven contractors attended the pre -bid meeting only four chose to
submit a bid for this project.
The low total bid amount is 8 percent below the Engineer's Estimate of $95,000. The low
bidder, Albert W. Davies, possesses a General Contractor's "A" contractor's license as
required by the project specifications. Albert W. Davies is currently working on the Dover
Drive Zone II Water Transmission Main Replacement and Street Rehabilitation and has
completed several similar projects successfully for other local public agencies.
SUBJECT: BUCK GULLY SEWER BY- PASS/SIPHON ABANDONMENT - AWARD OF CONTRACT NO. 3566
October 8, 2002
Page: 2
PROJECT DESCRIPTION
The sewer system within the Shorecliffs community is served by two crossings under Buck
Gully, the main siphon and a bypass siphon, which convey flow to the Buck Gully Sewer
Pump Station. The main sewer siphon crossing Buck Gully was replaced after the last El
Nino storms. The Buck Gully sewer siphon bypass also crosses Buck Gully upstream of
the main siphon crossing. Storm and urban runoff over the past few years have slowly
exposed the City's bypass sewer siphon. In addition to serving as an alternative method of
conveying sewer flows during the maintenance of the main sewer siphon and pump
station, the by -pass siphon also serves five homes along Evening Canyon Road. During
the re- construction of the main siphon, the bypass was used to serve the entire community
during construction. Recently, we also used the bypass during construction activities on
the Buck Gully Pump Station. Since the bypass sewer is currently exposed and may be
subjected to damage and potential sewer spills during this winter's storm flows, staff has
designed an alternate sewer piping scheme to service the five homes and take the current
bypass line out of service. This project will mitigate the current environmental concerns in
the short term and provide staff adequate time to plan on a future replacement scheme for
the bypass sewer.
The proposed project calls for the installation of approximately 200 feet of 8 -inch sewer
main in new easements along Evening Canyon Drive. Some of the new main will be
tunneled to minimize disruption to residents' backyards. The remaining portions of sewer
main will be installed by open cut construction methods. The sewer will re -route the
services from five homes that currently drain to the bypass siphon, and connect them to
the main siphon line. The by -pass (exposed in two places within the creek bottom), will
remain in place, but be out of service. A future bypass sewer replacement and Buck Gully
erosion repair /stabilization project may take place if the City is successful in securing
outside grant funding.
The project will be constructed in concert with a new house at 219 Evening Canyon Road.
The property is cleared and in the initial stages of re- grading. The homeowner's contractor
will allow the City access to construct the sewer main.
PROJECT SCHEDULE AND FUNDING
The project will begin upon City Council's approval and the acceptance of the new
easements.by the City Manager and should be completed in approximately one month.
The aggressive schedule is being set to minimize disruptions to the current residents, to
coordinate with the new residential construction at 219 Evening Canyon, and to ensure
completion before the winter storm season. City staff is currently preparing documents to
secure easements for the realignment of the sewer through three properties. The three
affected property owners have agreed to provide these new easements to expedite the
project. No work can begin until the easements are accepted by the City Manager in
accordance with Resolution 92 -82. The summary vacation of the former easements will be
submitted to Council for approval at a later date.
2
SUBJECT: BUCK GULLY SEWER BY- PASSISIPHON ABANDONMENT -AWARD OF CONTRACT NO. 3566
October 8, 2002
Page: 3
Staff recommends the City Council 1) approve the plans and specifications; 2) award
Contract No. 3566 to Albert W. Davies for the Total Bid Price of $87,810, and authorize the
Mayor and the City Clerk to execute the contract; 3) establish an amount of $8,700 to
cover the cost of unforeseen work; and 4) authorize a Budget Amendment appropriating
$96,510 from the unappropriated Wastewater Fund Balance to Account No. 7531 -
05600292.
WORKS DEPARTMENT
G. Badum, Director
Miofiael J. S'n�,a ori, P.E,
Principal Civil Engineer
Attachment: Project Location Map
Bid Summary
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City of Newport Beach
BUDGET AMENDMENT
2002 -03
EFFECT ON
BUDGETARY FUND BALANCE:
Number
7531 Sewer Main Replacement
Increase Revenue Estimates
fq
Number
Increase Expenditure Appropriations
Number
Transfer Budget Appropriations
SOURCE:
Number
Number
from existing budget appropriations
PX
from additional estimated revenues
Number
from unappropriated fund balance
EXPLANATION:
NO. BA- 018
AMOUNT: $96,510.00
Increase in Budgetary Fund Balance
AND X Decrease in Budgetary Fund Balance
No effect on Budgetary Fund Balance
This budget amendment is requested to provide for the following:
To increase expenditure appropriations related to the Buck Gully Sewer By- Pass/Siphon Abandonment - Award Contract
No. 3566.
ACCOUNTING ENTRY:
BUDGETARY FUND BALANCE
Fund Account
530 3605
REVENUE ESTIMATES (3601)
Fund/Division Account
EXPENDITURE APPROPRIATIONS (3603)
Division
Account
Division
Account
Division
Account
Division
Account
Division
Account
Signed:
Signed:
Signed:
Amount
Debit Credit
Description
Sewer Enterprise Fund Balance $96,510.00
Description
f
Administrative Approval: City Manager
City Council Approval: City Clerk
Director
$96,510.00
/10- /,-c,) Z
Date
Date
Date
Description
Number
7531 Sewer Main Replacement
Number
05600292 Sewer Main Mstr Plan Improvement
Number
Number
Number
Number
Number
Number
Number
Number
f
Administrative Approval: City Manager
City Council Approval: City Clerk
Director
$96,510.00
/10- /,-c,) Z
Date
Date
Date