HomeMy WebLinkAboutStaff Report 12366
City of Palo Alto (ID # 12366)
City Council Staff Report
Report Type: Consent Calendar Meeting Date: 9/27/2021
City of Palo Alto Page 1
Title: Approval of Construction Contract Number C22182320 with Golden Bay
Construction, Inc. in the Amount of $1,250,923, and Authorization for the
City Manager to Negotiate and Execute Change Orders Up to a Not-to-Exceed
Amount of $125,093, for the Storm Drainage System Replacement and
Rehabilitation Project, Capital Improvement Program Project SD-06101
From: City Manager
Lead Department: Public Works
Recommendation
Staff recommends that Council:
1. Approve, and authorize the City Manager or designee to execute a construction contract
with Golden Bay Construction, Inc. (Contract No. C22182320) in the amount of
$1,250,923 for the Storm Drainage System Replacement and Rehabilitation Project SD-
06101; and
2. Authorize the City Manager or designee to negotiate and execute one or more change
orders to the above construction contract with Golden Bay Construction, Inc. for
related, additional and unforeseen work that may develop during the project, the total
value of which shall not exceed $125,093.
Background
Older storm drainpipes and structures are usually made of concrete or metal. These materials
can deteriorate over time due to age, tree root intrusion, excess weight imposed on a brittle
structure during construction activities or will rust and rot out, creating large holes within the
sides of the pipes. Deteriorated pipes are then replaced or repaired as part of the recurring
Storm Drainage System Replacement and Rehabilitation Project (SD-06101).
Based on the condition of the pipe, if there are no holes or significant cracking, the storm
drainpipe can be cured-in-place pipe (CIPP) lined. In the cases where the pipes have
disintegrated and are cracked or catch basins have collapsed, a full replacement will be needed.
Pipe replacement in the streets may require additional work such as striping, sidewalk, curb and
gutter, and curb ramp due to the location of the work.
The purpose of this rehabilitation project is to preserve, if not improve, the integrity of the
storm drain system. In some instances, there are existing 10-inch diameter pipes that will be
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upsized to a 12-inch diameter pipe so that they can be properly cleaned. Pipes smaller than 12
inches in diameter cannot be cleaned properly due to the size limits of the available equipment.
Rehabilitating and repairing the storm drain system reduces flooding risks by making sure that
the storm system is properly maintained and functioning.
This project has been coordinated with Public Works Street Maintenance and Utilities
Department. Street cut fees in the amount of $30,000 will be transferred to the General Fund.
Discussion
Public Works identifies and tracks the locations of storm drain pipe sections requiring
rehabilitation. The last citywide rehabilitation project was completed in 2009. The work under
this contract, which will occur at a number of locations throughout the City, includes the
replacement of 1,817 linear feet of broken pipe and 2,443 linear feet of pipe to be CIPP lined.
The project will also remove and replace 21 catch basins, and four storm drain manholes.
Concrete work includes removal and replacement of curb ramps, curb and gutter, and sidewalk.
On July 30, 2021, an Invitation for Bids (IFB) for the Storm Drainage System Replacement and
Rehabilitation Project was posted to the City’s online bid solicitation web portal, Planet Bids.
The bidding period was 25 days, ending on August 24, 2021. Bids were received from five
qualified contractors on August 24, 2021, as listed in the attached Bid Summary (Attachment
A).
Summary of Bid Process
Bid Name / Number Storm Drainage System Replacement and
Rehabilitation Project IFB No. 182320
Proposed Length of Project 270 Calendar Days
Number of Bid Packages Downloaded by
Prime Contractors
31
Total Days to Respond to Bid 25 Calendar Days
Pre-Bid Meeting? No
Number of Bids Received 5
Base Bid Price Range $1,250,923 - $1,772,174
The apparent low bidder was selected based upon the base bid with no consideration to the
add alternate. The Base Bid prices ranged from $1,250,923 to $1,772,174, representing 15%
below to 20% above the engineer’s estimate, respectively. Staff does not recommend awarding
the Bid Alternate.
Staff has reviewed all bids submitted and recommends that the Base Bid totaling $1,250,923
submitted by Golden Bay Construction, Inc. be accepted and that Golden Bay Construction, Inc.
be declared the lowest responsible bidder. The contingency amount of $125,093, which equals
10 percent of the total contract, is requested for related, additional, but unforeseen work
which may develop during the project.
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Staff reviewed other similar projects performed by the lowest responsible bidder, Golden Bay
Construction, Inc., including projects performed for the City and did not find any significant
issues with their previous work. Staff also checked with the Contractor's State License Board
and confirmed that the contractor has an active license on file.
This contract is on the City’s construction contract template, which permits the City to
terminate without cause/for convenience by providing written notice to the contractor. In the
event the City finds itself facing a challenging budget situation, and it is determined that City
resources need to be refocused elsewhere, the City can terminate for convenience. Other
options include termination due to non-appropriation of funds or amending the contract to
reduce the cost, for example, by reducing the scope of work.
Resource Impact
Funding for this project is available in the Fiscal Year 2022 Storm Water Management Fund
Capital Budget for the Storm Drainage System Replacement and Rehabilitation Project (SD-
06101).
Policy Implications
The project meets the Water Resources Goal N-4 and Policy N-4.14 on improving storm
drainage performance by constructing new system improvements where necessary. This
project is consistent with the City’s Storm Drain Master Plan and its goal to manage urban
runoff and protect public health and safety. The recommendations do not represent any
changes to existing City policies.
Stakeholder Engagement
Staff has presented to the Storm Water Management Oversight Committee on the progress of
the Storm Drainage System Replacement and Rehabilitation Project. Once the construction
contract is awarded, staff will continue to notify and update the Storm Water Management
Oversight Committee during construction. Additional public outreach will be completed during
construction.
Environmental Review
This project is categorically exempt from the provisions of the California Environmental Quality
Act (CEQA) under Section 15301 (d) (repair, maintenance and/or minor alteration of existing
facilities and 15302 (c) (replacement of existing structures) of the CEQA Guidelines and no
further environmental review is necessary.
Attachments:
• Attachment8.a: Attachment A: Bid Summary
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STORM DRAINAGE SYSTEM REPLACEMENT AND REHABILITATION PRJOECT (SD-06101)
IFB 182320
IFB Post Date: 7/30/2021
IFB Due Date: 8/24/2021
BID FORM SUMMARY
QTY UNIT
UNIT PRICE BID TOTAL UNIT PRICE BID TOTAL UNIT PRICE BID TOTAL UNIT PRICE BID TOTAL UNIT PRICE BID TOTAL UNIT PRICE BID TOTAL
1 MOBILIZATION 1 LS $ 50,000.00 $ 50,000.00 $ 30,000.00 $ 30,000.00 $ 40,000.00 $ 40,000.00 $ 148,000.00 $ 148,000.00 $ 70,000.00 $ 70,000.00 $ 82,000.00 $ 82,000.00
2 PUBLIC NOTIFICATION AND POSTING 1 LS $ 5,000.00 $ 5,000.00 $ 1,800.00 $ 1,800.00 $ 2,000.00 $ 2,000.00 $ 5,000.00 $ 5,000.00 $ 6,500.00 $ 6,500.00 $ 10,000.00 $ 10,000.00
3 TRAFFIC CONTROL 1 LS $ 80,000.00 $ 80,000.00 $ 28,806.00 $ 28,806.00 $ 25,000.00 $ 25,000.00 $ 40,000.00 $ 40,000.00 $ 30,000.00 $ 30,000.00 $ 20,000.00 $ 20,000.00
4 SHEETING, SHORING AND BRACING 1 LS $ 80,000.00 $ 80,000.00 $ 360.00 $ 360.00 $ 25,000.00 $ 25,000.00 $ 20,000.00 $ 20,000.00 $ 20,000.00 $ 20,000.00 $ 20,000.00 $ 20,000.00
5 INERT SOLIDS RECYCLING WITH FABRIC 1 LF $ 8,000.00 $ 8,000.00 $ 450.00 $ 450.00 $ 5,000.00 $ 5,000.00 $ 1,000.00 $ 1,000.00 $ 9,205.00 $ 9,205.00 $ 20,000.00 $ 20,000.00
6 STRIPING 1 LF $ 5,000.00 $ 5,000.00 $ 4,500.00 $ 4,500.00 $ 12,000.00 $ 12,000.00 $ 7,000.00 $ 7,000.00 $ 8,000.00 $ 8,000.00 $ 20,000.00 $ 20,000.00
7 REMOVE EXISTING 10-INCH PIPE AND INSTALL 10-INCH HDPE PIPE 10 LF $ 250.00 $ 2,500.00 $ 338.00 $ 3,380.00 $ 1,000.00 $ 10,000.00 $ 340.00 $ 3,400.00 $ 480.00 $ 4,800.00 $ 500.00 $ 5,000.00
8 REMOVE EXISTING 10-INCH PIPE AND INSTALL 12-INCH HDPE PIPE 416 EA $ 300.00 $ 124,800.00 $ 320.00 $ 133,120.00 $ 300.00 $ 124,800.00 $ 340.00 $ 141,440.00 $ 500.00 $ 208,000.00 $ 380.00 $ 158,080.00
9 REMOVE EXISTING 12-INCH PIPE AND INSTALL 12-INCH HDPE PIPE 520 EA $ 300.00 $ 156,000.00 $ 320.00 $ 166,400.00 $ 320.00 $ 166,400.00 $ 340.00 $ 176,800.00 $ 500.00 $ 260,000.00 $ 380.00 $ 197,600.00
10 REMOVE EXISTING 12-INCH PIPE AND INSTALL 12-INCH HDPE PIPE ON 4"AC OVER 6"PCC 72 EA $ 300.00 $ 21,600.00 $ 369.00 $ 26,568.00 $ 325.00 $ 23,400.00 $ 500.00 $ 36,000.00 $ 550.00 $ 39,600.00 $ 1,000.00 $ 72,000.00
11 REMOVE EXISTING 15-INCH PIPE AND INSTALL 15-INCH HDPE PIPE 291 LF $ 350.00 $ 101,850.00 $ 320.00 $ 93,120.00 $ 360.00 $ 104,760.00 $ 420.00 $ 122,220.00 $ 550.00 $ 160,050.00 $ 390.00 $ 113,490.00
12 REMOVE EXISTING 13-INCH BY 22-INCH PIPE AND INSTALL 12-INCH HDPE PIPE 522 EA $ 600.00 $ 313,200.00 $ 257.00 $ 134,154.00 $ 300.00 $ 156,600.00 $ 180.00 $ 93,960.00 $ 475.00 $ 247,950.00 $ 520.00 $ 271,440.00
13 REMOVE AND REPLACE EXISTING CATCH BASIN 21 LS $ 5,000.00 $ 105,000.00 $ 5,055.00 $ 106,155.00 $ 8,000.00 $ 168,000.00 $ 7,500.00 $ 157,500.00 $ 6,000.00 $ 126,000.00 $ 8,200.00 $ 172,200.00
14 INSTALL STANDARD STORM DRAIN MANHOLE 1 LF $ 10,000.00 $ 10,000.00 $ 8,100.00 $ 8,100.00 $ 11,000.00 $ 11,000.00 $ 12,500.00 $ 12,500.00 $ 12,000.00 $ 12,000.00 $ 12,000.00 $ 12,000.00
15 INSTALL 60-INCH STORM DRAIN MANHOLE.1 SF $ 20,000.00 $ 20,000.00 $ 10,800.00 $ 10,800.00 $ 14,000.00 $ 14,000.00 $ 14,500.00 $ 14,500.00 $ 14,000.00 $ 14,000.00 $ 25,000.00 $ 25,000.00
16 INSTALL STORM DRAIN MANHOLE JUNCTION BOX 2 SF $ 25,000.00 $ 50,000.00 $ 16,650.00 $ 33,300.00 $ 35,000.00 $ 70,000.00 $ 25,000.00 $ 50,000.00 $ 30,000.00 $ 60,000.00 $ 13,800.00 $ 27,600.00
17 INSTALL CIPP LINER IN EXISTING 10-INCH PIPE.205 EA $ 70.00 $ 14,350.00 $ 215.00 $ 44,075.00 $ 100.00 $ 20,500.00 $ 195.00 $ 39,975.00 $ 110.00 $ 22,550.00 $ 243.00 $ 49,815.00
18 INSTALL CIPP LINER IN EXISTING 12-INCH PIPE.309 EA $ 80.00 $ 24,720.00 $ 148.00 $ 45,732.00 $ 100.00 $ 30,900.00 $ 134.00 $ 41,406.00 $ 115.00 $ 35,535.00 $ 167.00 $ 51,603.00
19 INSTALL CIPP LINER IN EXISTING 15-INCH PIPE.41 EA $ 90.00 $ 3,690.00 $ 305.00 $ 12,505.00 $ 145.00 $ 5,945.00 $ 277.00 $ 11,357.00 $ 160.00 $ 6,560.00 $ 346.00 $ 14,186.00
20 INSTALL CIPP LINER IN EXISTING 13-INCH BY 22-INCH ELLIPTICAL PIPE 615 EA $ 100.00 $ 61,500.00 $ 120.00 $ 73,800.00 $ 75.00 $ 46,125.00 $ 109.00 $ 67,035.00 $ 80.00 $ 49,200.00 $ 136.00 $ 83,640.00
21 INSTALL CIPP LINER IN EXISTING 30-INCH PIPE.1273 EA $ 150.00 $ 190,950.00 $ 179.00 $ 227,867.00 $ 140.00 $ 178,220.00 $ 163.00 $ 207,499.00 $ 155.00 $ 197,315.00 $ 203.00 $ 258,419.00
22 VIDEO INSPECTION OF NEW STORM DRAIN PIPELINE 1817 EA $ 4.00 $ 7,268.00 $ 3.00 $ 5,451.00 $ 3.00 $ 5,451.00 $ 2.50 $ 4,542.50 $ 5.00 $ 9,085.00 $ 3.00 $ 5,451.00
23 REMOVE AND REPLACE CURB RAMP.5 EA $ 5,000.00 $ 25,000.00 $ 6,300.00 $ 31,500.00 $ 15,000.00 $ 75,000.00 $ 5,000.00 $ 25,000.00 $ 7,000.00 $ 35,000.00 $ 7,500.00 $ 37,500.00
24 REMOVE AND REPLACE TYPE A CURB AND GUTTER.105 EA $ 50.00 $ 5,250.00 $ 138.00 $ 14,490.00 $ 75.00 $ 7,875.00 $ 130.00 $ 13,650.00 $ 60.00 $ 6,300.00 $ 200.00 $ 21,000.00
25 REMOVE AND REPLACE CONCRETE SIDEWALK.690 EA $ 17.00 $ 11,730.00 $ 21.00 $ 14,490.00 $ 25.00 $ 17,250.00 $ 33.00 $ 22,770.00 $ 15.00 $ 10,350.00 $ 35.00 $ 24,150.00
Base Bid Total: $ 1,477,408.00 $ 1,250,923.00 $ 1,345,226.00 $ 1,462,554.50 $ 1,648,000.00 $ 1,772,174.00
10% Contingency: $ 147,741.00 $ 125,093.00 $ 134,523.00 $ 146,256.00 $ 164,800.00 $ 177,218.00
Total Base Bid: $ 1,625,149.00 $ 1,376,016.00 $ 1,479,749.00 $ 1,608,810.50 $ 1,812,800.00 $ 1,949,392.00
Over Engineer's Estimate: -15% -9% -1% 12% 20%
BID ALTERNATE - NOT ADVANCING
QTY UNIT
UNIT PRICE BID TOTAL UNIT PRICE BID TOTAL UNIT PRICE BID TOTAL UNIT PRICE BID TOTAL UNIT PRICE BID TOTAL UNIT PRICE BID TOTAL
Alt1 REMOVE EXISTING 4-INCH PIPE AND INSTALL 12-INCH HDPE PIPE. 23 LF $ 250.00 $ 5,750.00 $ 338.00 $ 7,774.00 $ 500.00 $ 11,500.00 $ 400.00 $ 9,200.00 $ 900.00 $ 20,700.00 $ 900.00 $ 20,700.00
Alt2 REMOVE AND REPLACE EXISTING CATCH BASIN 1 EA $ 5,000.00 $ 5,000.00 $ 7,115.00 $ 7,115.00 $ 10,000.00 $ 10,000.00 $ 6,000.00 $ 6,000.00 $ 10,000.00 $ 10,000.00 $ 8,100.00 $ 8,100.00
Alt3 MOBILIZATION 1 LS $ 3,000.00 $ 3,000.00 $ 6,000.00 $ 6,000.00 $ 5,000.00 $ 5,000.00 $ 1,500.00 $ 1,500.00 $ 4,000.00 $ 4,000.00 $ 1,600.00 $ 1,600.00
Alt4 TRAFFIC CONTROL 1 LS $ 5,000.00 $ 5,000.00 $ 1,200.00 $ 1,200.00 $ 2,000.00 $ 2,000.00 $ 2,500.00 $ 2,500.00 $ 2,000.00 $ 2,000.00 $ 500.00 $ 500.00
Alt5 SHEETING, SHORING AND BRACING 1 LS $ 5,000.00 $ 5,000.00 $ 300.00 $ 300.00 $ 1,500.00 $ 1,500.00 $ 1,500.00 $ 1,500.00 $ 2,000.00 $ 2,000.00 $ 500.00 $ 500.00
Alt6 VIDEO INSPECTION OF NEW STORM DRAIN PIPELINE 23 LF $ 4.00 $ 92.00 $ 3.00 $ 69.00 $ 50.00 $ 1,150.00 $ 2.50 $ 57.50 $ 5.00 $ 115.00 $ 25.00 $ 575.00
Alt7 WATER MAIN BACKFILL 1 EA $ 10,000.00 $ 10,000.00 $ 7,500.00 $ 7,500.00 $ 4,000.00 $ 4,000.00 $ 5,500.00 $ 5,500.00 $ 10,000.00 $ 10,000.00 $ 2,500.00 $ 2,500.00
Bid Alternate Total: $ 33,842.00 $ 29,958.00 $ 35,150.00 $ 26,257.50 $ 48,815.00 $ 34,475.00
10% Contingency: $ 3,385.00 $ 2,996.00 $ 3,515.00 $ 2,626.00 $ 4,882.00 $ 3,448.00
Total Bid Alternate:37,227.00$ 32,954.00$ 38,665.00$ 28,883.50$ 53,697.00$ 37,923.00$
Over Engineer's Estimate: -11% 4% -22% 44% 2%
TOTALS SUMMARY FOR WORK TO PROCEED
Over Engineer's Estimate: -15% -9% -1% 12% 20%
LOWEST BIDDER
BID #DESCRIPTION Engineer's Estimate Golden Bay Construction Con-Quest Contractors, Inc. KJ Woods Construction EPS Inc dba Express Plumbing
LOWEST BIDDER
BID #DESCRIPTION Engineer's Estimate Golden Bay Construction Devaney Engineering, Inc. Con-Quest Contractors, Inc.
Devaney Engineering, Inc.
KJ Woods Construction EPS Inc dba Express Plumbing
LOWEST BIDDER
Total Summary Description Engineer's Estimate Golden Bay Construction Devaney Engineering, Inc. Con-Quest Contractors, Inc. KJ Woods Construction EPS Inc dba Express Plumbing
$ 1,772,174.00
Total 10% Contingency $ 147,741.00 $ 125,093.00 $ 134,523.00 $ 146,256.00 $ 164,800.00 $ 177,218.00
Total Base Bid $ 1,477,408.00 $ 1,250,923.00 $ 1,345,226.00 $ 1,462,554.50 $ 1,648,000.00
$ 1,949,392.00 Total Contract Amount $ 1,625,149.00 $ 1,376,016.00 $ 1,479,749.00 $ 1,608,810.50 $ 1,812,800.00
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