HomeMy WebLinkAboutUtilities 2013-11-18 Item 2A - Change Order #1 - 2013 Annual Sewer Repair Program with King Construction Company����JILA�gs
oz City of Tukwila
Jim Haggerton, Mayor
INFORMATIONAL MEMORANDUM
TO: Mayor Haggerton
Utilities Committee
FROM: Bob Giberson, Public Works Director
BY: Mike Cusick, P.E., Program Manager
DATE: November 15, 2013
SUBJECT: 2013 . Annual Sewer Repair Program
Project No. 91340201, Contract No. 13 -134
Change Order No. 1 Approval
ISSUE
Approve Change Order No. 1 to Contract No. 13 -134 with King Construction Co., Inc.
BACKGROUND
King Construction Co., Inc was awarded the contract for installation of side sewers to 6532 and 6542 Southcenter
Blvd on August 6, 2013. Work began on the side sewer installation on August 19, 2013.
DISCUSSION
1. During the first day of work, King Construction Co., Inc. began excavating for the sewer line up the hill from
old Macadam Rd. The contractor encountered buried boulders greater in size than one half cubic yard. The
boulders and ledge rock were found in remaining trenching for the project. The contractor's schedule allowed
for 4 working days for excavating and installation of piping. With the removal of the boulders, an additional 3
days was needed to complete the project.
2. The Contractor had to concrete encase a 10 -foot portion of the sewer because it passed under a water main
with less than 18" of clearance.
3. The Contractor was required to rotate the soil pipe at the 6532 Southcenter Blvd's crawl space so that it
would exit in the front yard. When the contractor was in the crawl space, he determined that instead of 1
point of connection to the existing septic tank, there were 3. The contractor's schedule allowed 1 working day
for installation of piping in the crawl space of the house. The change in scope required an additional day to
complete the connection to the house.
FINANCIAL IMPACT
Contingency was set at 10% or $4,905.60 for this side sewer project. The additional scope of work included the
extra time and effort required to excavate the unforeseen rock; plus the costs for concrete encasing the sewer line
and rotating of the soil pipe under the house at 6532 Southcenter Blvd. The funds to cover this change order will
come from the 55th Ave S Sewer Repair Project as that project had $31,964.50 remaining from the original
$55,000.00 budget and the project was completed with no change orders.
RECOMMENDATION
Approve Change Order No. 1 in the amount of $28,825.85, including sales tax, to Contract No. 13 -134 with King
Construction Co., Inc, for installation of the side sewer to 6532 and 6542 Southcenter Blvd and consider this item
at the November 25, 2013 Committee of the Whole and subsequent December 2, 2013 Regular Meeting,
Attachments: Change Order No. 1
Photos showing large rocks found during excavation
W: \PW Eng \ PROJECTS \A- SW Projects \2013 Annual Sewer Repair (91340201) \Desimone Side Sewer Installation \Info Memo KING CON Change Orderl- sb.doc
1
CITY OF TUKWILA
CONTRACT CHANGE ORDER NO. 01
Sheet 1 of 2
DATE: 9/13/2013 BUDGET NO.:
PROJECT NO.: 91340201 CONTRACT NO.: 13 -134
PROJECT NAME: 2013 ANNUAL SEWER REPAIR DESIMONE SIDE SEWER
TO: BRAD KING
You are hereby directed to make the herein described changes to the plans and specifications or do
the following described work not included in the plans and specifications on this contract:
NOTE: This change order is not effective until approved by the "Owner" and a notice to proceed is
issued
Conditions: A. The following change, and work affected thereby, are subject to all
contract stipulations and covenants;
B. The rights of the "Owner" are not prejudiced; and
C. All claims against the "Owner" which are incidental to or as a consequence of this
change are waived.
D The Contractor Must Submit all Field Overhead and Home Office Overhead rates
for approval in advance of all Change Orders.
CHANGE:
See attached sheet detailing the required change
There is no time extension with this Change Order.
We the undersigned Contractor, have given careful consideration to the change proposed and
hereby agree, if this proposal is approved, that we will provide all equipment, furnish all materials,
except as may otherwise be noted above, and perform all services necessary for the work above
specified, and will accept as full payment therefore the prices shown above and below.
ACCEPTED: Date 9 -/k -13 Contractor /-1r.)
By �� Title Pie-si.,-r-
Original Contract (without tax) $ 44,800.00 APPROVED BY THE CITY OF TUKWILA
Previous Change Order
$ 0.00 Date
This Change Order (without tax) $ 26,324.98 By
Mayor
REV. CONTRACT AMOUNT $ 71,124.98
ORIGINAL: City Clerk (1 of 2) Contractor (2 of 2)
cc: Finance Department (w /encumbrance); Construction Inspector; Construction Engineer; file:
2
CONTRACT CHANGE ORDER NO. 01
CHANGE:
Sheet 2 of 2
1. During the first day of work, King Construction began excavating for the sewer line up the hill from old
Macadam Road. They encountered buried boulders greater than one half cubic yard in size. The boulders
and ledge rock were found in remaining trenching for the project. The contractor's schedule allowed 4
working days for excavating and for installation of piping but the boulders and ledge rock added over 3
additional days of construction time required to complete the installation of the sewer line.
2. The Contractor had to concrete encase a 10 foot portion of the sewer because it passed under a water main
with less than 18" of clearance required by the Washington State Department of Health.
3. The Contractor was required to rotate the soil pipe at the house at 6532 Southcenter Blvd. in the crawl space
under the house so that it would exit in the front yard. When the contractor was under the house in the crawl
space, he determined instead of one point of connection, there were three points of connection to the existing
septic tank. These extra connections required about an additional days labor so the house would be connected
to the sewer system.
4. Extend the contract with King Construction, Co. Inc. to December 1, 2013, so that Change Order No. 1 can be
completed.
3
King Construction Co., Inc.
August 12, 2013
Project: 2013 Annual Sewer Repair - 2 Side Sewer Installations
City project #: 91340201
RE: This spreadsheet lists the T & M costs requested for the differing site condition at the project
for rock excavation. The crew was directed to encase the side sewer pipe in concrete at the
water main crossing. This spreadsheet also includes the invoiced cost of the concrete as this
work was done at the same time as the rock excavation occurred.
This spreadsheet includes the excess cost of hauling the rock spoils for disposal beyond the amount
included in the bid for dirt spoils. There is no excess dump fees as we found a site that would
accept the rock spoils for reuse.
Labor:
ST /OT
Total
Rate
Extension
Russ Taylor
ST
26
26
$ 60.35
$ 1,569.10
Komatsu, PC 128UU -2, excavator
OT
26
0
$ 81.78
$ -
Rex Taylor
ST
46
46
$ 59.21
$ 2,723.66
6x4 dump, 70,000 #, 12 -18cy, diesel
OT
26
0
$ 80.06
$ -
Bernie Montano
ST
20
20
$ 59.21
$ 1,184.20
Komatsu PC 078 excavator
OT
26
0
$ 80.06
$ -
Pipe layer
ST
21
21
$ 47.86
$ 1,005.06
Allied 1600 compactor w /swivel
OT
26
26
$ 66.20
$ -
Subtotal
29% markup
Labor total
$ 6,482.02
$ 1,879.79
$ 8,361.81 v
Equipment:
Date
Inv. If
Amount
Hwy flatbed, diesel, 20,0008, 4x2
26
26
$ 29.80
$ 774.80
Komatsu, PC 128UU -2, excavator
26
26
$ 66.50
$ 1,729.00
8x4 dump,85,000 #,15 -18cy, diesel
46
46
$ 101.40
$ 4,664.40
6x4 dump, 70,000 #, 12 -18cy, diesel
26
26
$ 88.50
$ 2,301.00
4x2 dump, 25,0008, 5 -6cy, diesel
26
26
$ 41.80
$ 1,086.80
Komatsu PC 078 excavator
26
26
$ 44.00
$ 1,144.00
Okada OKB3048 breaker
4
4
$ 11.65
$ 46.60
Allied 1600 compactor w /swivel
26
26
$ 11.80
$ 306.80
Trench box, 6x8
26
26
$ 6.00
$ 156.00
Steel plate 8x10
26
26
$ 1.20 '
$ 31.20
Kent, E 208 breaker
26
26
$ 15.50
$ 403.00
Subtotal
21% markup
Equipment total
$ 12,643.60
$ 2,655.16
$ 15,298.76 r/
Materials & Misc.
Date
Inv. If
Amount
Staging area
$ 203.88
Sanikan
$ 15.87
HD Supply, DI pipe & fittings
08/21/2013
B364747
_ $ 1,234.20
Contractor stock, adt gaskets
$ 31.02
Stoneway Concrete
08/21/2013
806140
$ 83.50
Subtotal
21% markup
Material total
Summary:
Labor
Equipment
Material total
Total
$ 1,568.47
$ 329.38
$ 1,897.85 f/
$ 8,361.81
$ 15,298.76
$ 1,897.85
$ 25,558.41
4
King Construction Co., Inc.
August 12, 2013
Project: 2013 Annual Sewer Repair - 2 Side Sewer Installations
City project #: 91340201
The project required the contractor to turn the plumbing 180 degrees and to exit out the front of the house
for connection to the new side sewer. It was discovered that not all of the active plumbing connected
under the house. The kitchen and laundry exited under the footing and connected the septic tank.
This spreadsheet tracks the additional labor, equipment and materials to connect the additional lines to the
rotated plumbing line.
Labor:
ST /OT
# # # # # # # ##
# # # # # # # ##
Total
Rate
Extension
Bernie Montano
ST
2
2
$ 59.21
$ 118.42
McLendon
OT
0
$ 80.06
$ -
Pipe layer
ST
5
5
$ 47.86
$ 239.30
OT
$ 66.20
$ -
Subtotal
29% markup
Labor total
$ 357.72
$ 103.74
$ 461.46
Equipment:
Hwy flatbed, diesel, 20,000 #, 4x2
2
5
7
$ 29.80
$ 208.60
Subtotal $ 208.60
21% markup $ 43.81
Equipment total $ 252.41
Materials & Misc.
Date
Inv. #
Amount
Lowes
08/27/2013
$ 2.04
McLendon
08/28/2013
$ 7.58
Lowes
08/28/2013
$ 33.94
Summary:
Labor
Equipment
Material total
Total
25T5-50• G//
sit 2
Subtotal
21% markup
Material total
43.56
9.15
52.71
$ 461.46
$ 252.41
$ 52.71
$ 766.57 ✓
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photo