HomeMy WebLinkAboutItem 08 - Creek 23/17 Construction ProjectMEMO TO:
FROM:
MEETING DATE:
SUBJECT:
RECOMMENDATION:
ITEM
HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
ROGER NELSON, CITY MANAGER/
DECEMER 17, 2002
CHANGE ORDER NO. 2 — CREEK 23/17 CONSTRUCTION
PROJECT
City Council consider approving Change Order No. 2 to the Creek 23/17 Construction
Contract in the amount of $178,373.94 for various items required during the construction
of the project, authorize staff to execute said Change Order, and take any necessary
action.
FUNDING SOURCE:
Funds are currently available and programmed as follows:
Funding Source
Account
Amount
Award
Percent
94 GO Bonds
178-78324-007
$373,830.48
7.8%
OOA CO
116-48930-536-1-000001
$4,203,129.00
$178,373.94
88.1%
96 GO Bonds
178-78355-009
$32,169.52
.6%
SDUS
116-48941-535-1
$160,710.00
3.4%
Peripheral Fees
178-21407
$1,892.77
.1%
TOTAL
$4,771,731.77
$178,373.94
100%
Budget
Amount
Award
Percent
Engineering
$556,410.00
11.7%
Construction
$3,703,359.83
$178,373.94
77.6%
Testing
$65,000.00
1.4%
Contingency
$446,961.94
9.3%
TOTAL
$4,771,731.77
$178,373.94
100%
BACKGROUND:
The Creek 23/17 project has proved challenging because of utility conflicts, unexpected
site conditions, weather and various issues related to adjacent property owners.
December 11, 2002 (3:05PM)
Change Order # 1 was approved by Council in the amount of $50,108.89 on May 21,
2002.
Included in Change Order # 2 are the following items:
• Modular block walls were raised one or two layers higher as needed over the length
of approximately 2,765 linear feet to lessen ground slope in residents' yards. This
resulted in an additional 3,678 square feet. Additional modular block walls were
added at the Creek 23 oxbow area upstream of Creekwood Drive to save several
mature trees (658 square feet), at 2804 Twin Creek Cove (751 square feet) and at
2804 Creekwood Drive (499 square feet, $87,141.60).
• Additional pipe rail safety fence was added to the project in various locations. The
additional layers of modular block wall raised the overall height of the wall over six
feet and necessitated the installation of pipe rail fence for these areas (1,955 linear
feet, $90,084.50).
• Additional gabion boxes and gabion blankets were installed to protect property from
erosion. At one specific location on the Creek 17 oxbow upstream of Timberline
Drive, an old retaining wall was undermined and homes were threatened by erosion.
The wall was replaced by gabions to protect against erosion in the creek bends. The
Aft scope of gabion installation was expanded on both creeks to resolve erosion
conditions that had worsened since the construction plans were developed
($51,375.64).
• Additional sod was added to the project (1,777.7 square yards) on downstream creek
23 to address possible erosion to disturbed soil ($11,968.00).
0 Miscellaneous adjustments (credit, $62,195.80).
Staff recommends approval.
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December 11, 2002 (3:05PM)
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