HomeMy WebLinkAboutR D BROWN CONTRACTORS CHANGE ORDER 1
Augusta Richmond GA
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CONSTRUCTION CONTRACT CHANGE ORDER
co NUNffiER 1
BID ITEM 02-206
DATE 06/24/03
PROJECT TITLE
ORIGINAL CONTRACT DATE
OWNER AUGUSTA, GEORGIA
2nd Street Lift Station Rehabilitation
OS/21/2003
PROJECT NUMBER
PO NUMBER
50260
P 69764
The following change is hereby made to the contract for the above project:
Description of Change (for a more detailed description see attached proposal):
Commission letter dated February 3, 2003 item #48 was for the upgrade of the Second Street lift station, This
change order is for additional work which would include cutting in a new plug valve while bypass pumping and
replacing suction valves on the pwnps in the lift station,
PAYEE
TOTAL AtYfOUNT OF THIS CHANGE ORDER
$
R. D, Brown Contractors, Inc
53,682.51
The contract time will be INCREASED by.a calendar days as a result of this change,
ORIGINAL CONTRACT MvIOUNT $
PREVIOUS CHANGE ORDER (INCREASE) $
THIS CHANGE ORDER (INCREASE) $
TOTAL REVISED CONTRACT Ai'vIOUNT \VITH CHANGE ORDER $
FUNDING NUl\1BER/ ACCOUNT NUl\-ffiER
PROPOSED BY:
REQUESTED BY:
SUBMITTED BY:
RECOMMENDED BY:
APPROVED BY:
509043420
DATE:
DATE:
DATE:
DATE:
DATE:
DATE:
416,074,00
0,00
53,682.51
469,756,51
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Stevenson&PaImer
. Engineering
INCORPORATED
Albany
Augusta
Savannah
Smyrna
June 19, 2003
Hand Delivered
Mr. Joe Holley, P.E., Engineering Superintendent
360 Bay Street, Suite 180
Augusta, Georgia 30901
Re: 2nd Street Lift Station Rehabilitation, AUD Project #50260
Change Order #1
Dear Mr. Holley:
As you are aware, the contractor's first attempt to change the discharge plug and check
valves on the station's pumps was aborted due to the failure of the existing 14-inch gate
valve on the force main to seal tightly. We have spoken to the contractor regarding
options that would allow the work to proceed.
The first option is to cut in a new plug valve while bypass pumping, attempting to deal
with leakage through the existing valve by pumping from the excavation back into the
wetwelL There is risk associated with this option because the leakage rate through the
existing valve is not known and there is the potential for a spill occurring. The cost of this
option is $16,672.89. The contractor will not assume responsibility for any spill that
occurs under this scenario.
The second option is to install a new plug valve while performing a line stop on the force
main. While this option is more costly, it minimizes the risk of a spilL The cost of this
option is $28,432.27. We recommend this option.
The intent of this project was to enhance the reliability of the station until the new
Columbia Nitrogen force main is constructed, which will serve to significantly reduce
flow to this station. Once the force main is constructed, further rehabilitation was
planned, and at that time the suction valves for the 4 pumps would be replaced.
The bypass system set up by the contractor was able to reliably handle the flow to the
station, and this affords the opportunity to change the suction valves at this time. The cost
for this change would be $25,250.24. We have reviewed this price and find it to be
reasonable. We recommend that this work be included in project.
360 Bay Street, Suite 400 / Augusta, Georgia 30901/706-261-4040/ Fax 706-261-4042
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June 19, 2003
AUD Project #50260
Change Order No.1
Page 2
The total cost of the work described above is $53,632.51. Please contact me if you have
questions or comments.
Sincerely,
STEVENSON & PALMER ENGINEERING, INC.
,,-;;;,.. 'D . W ~
Tom D. Wiedmeier, P.E.
Vice President
TDW:mrc
cc; Jeff Henderson/CH2M Hill, Inc.