HomeMy WebLinkAboutButt Memorial Bridge Emergency Repairs
Augusta Richmond GA
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CHANGE ORDER
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Change Order Number: 2 Date: 11/21/00
Project Title: Butt Memorial Bridge Emergency Repairs
Original Contract Date: 4/10/00 Project Number: 323-04-200823130
Owner: Augusta-Richmond County P.O. Number: 23722
Contractor: Engineered Restorations. Inc.
The following change order is hereby made to the proposal for the above project:
(SEE ATTACHED LETTER TO JIM PARNELL DATED 11/21/00)
TOTAL AMOUNT OF THIS CHANGE ORDER
$ 0
The Contract time will be Increased by 671 calendar days as a result of this change. The date of
completion including this Change Order is February 28. 2002 .
Original Contract Amount
$ 86.782.50
Previous Change Order
(IncreasedIDecreased)
$ 87.199.81
This Change Order
(Increasea1)ecreased)
$
o
TOTAL CONTRACT WITH CHANGE ORDER(S)
$ 173.982,31
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Funding sourCelAcctun~~111Q-541 42IQ-200823130
Requested By: C~ Date:
Engineer
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Submitted BY:
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Finance Endorsement: /,) . ~
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Recommended By: 41/P / f;j ,
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Approved By:
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Accepted By:
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Public Works and Engineering Department~._
Teresa C. Smith, P.E., Director
County Enlrlneerfn~'SeetfO'1
Douglas A. Cheek, P.E.
COWlty"Engineer
530 Greene Street
~m 701
Augusta, Georgia 30901
(706) 821.1706 Fax (706) 821.1708
Clifford A. Goins, Assistant Director
Engineering Division
November 21,2000
Engineered Restoration, Inc.
Attn: Jim Parnell, Project Manager
201 Buford Drive
Lawrenceville, GA 30045
Re: Butt Bridge Substructure Repair- Defective Material
File Reference: 76-035 & 00-0 1 4(A)
Project Number: 323-04-200823130
Dear Mr. Parnell:
On September 19,2000, this office returned your request for payment for $8,678.25, which is 10%
of the billed amount for the portion of the repairs that utilized the pre-placed aggregate (PPA)
method. The testing conducted on the grout used in the PP A sections has provided results with less
than the specified compressive strength requirement of 3000 psi. The latest test results conducted
July 3, 2000, which was approximately sixty (60) days after the PPA was completed, yielded an
average compressive strength of less than 1000 psi. This grout is deemed "defective material" as
defined in the General Conditions of the Contract. At this time this office does not accept the
associated portions of the contract work that utilized this defective material, and therefore, final
payment can not be approved. The PPA method was utilized on portions of the North Intennediate
Bent- Column 1 and South Intermediate Bent- Columns 1-13.
The following is our proposal for this situation:
· The affected columns shall be evaluated by bridge divers in February 2001 and May 2001.
This will be approximately nine (9) and twelve (12) months after the PPA was completed.
The Georgia Department of Transportation's Office of Maintenance.Bridge Inspection
Section has agreed to conduct these underwater inspections. The repairs were conducted
during an unusually lengthy dry condition of the canal. It is expected that the Canal will be
running full until the next possible draining around February 2002, and the columns will be
submerged until that time. The Augusta Canal Authority has infonned this office that
draining the Canal depends on the specific needs for the draining. Typically, the draining
occurs to allow the mills along the Canal to perform maintenance on their intakes, because
there are several mills that utilize the Canal to generate power.
· If the underwater inspections indicate that the PP A sections are performing adequately, then
during the next draining of the Canal, the PP A columns shall be cored in a minimum of six
(6) locations. These cores shall be tested for compressive strength to determine if any
increase in compressive strength has occurred. Based upon the inspection in a dry condition
and the results of the testing, a final decision will be rendered.
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Butt Bridge Substructure Repair. Defective Material
November 21,2000
Page 2
· If the underwater inspections indicate that the PP A sections are failin~ then the defective
material will be rejected. A proposal of repair would need to be submitted within ten (10)
days after notification by this office that the material is being rejected. The severity of this
possible situation would have to be assessed to determine if the structural integrity of the .
bridge is injeopardy, and a decision would be made as to whether or not the Canal should
be drained as soon as possible for repairs.
The above noted provisions will require that the original contract time be extended. Pursuant to
Section 10.4.1 of the contract, a change order has been prepared that increases the contract time 671
days in order to incorporate these provisions. This time was calculated from the original completion
date of April 30, 2000 to the end of February 2002. If this is acceptable, please execute the attached
three original change orders and return to me to be submitted to the Augusta COmmission for
approval.
This proposal is presented in an attempt to determine if the defective material can be accepted. Time
will be the primary factor to determine if the grout is adequately performing. Per Section 13.13 of
the General Conditions of the Contract, the Contractor shall bear all direct, indirect and
consequential costs attributable to the Owner's evaluation of the detennination to accept such
defective work.
If you would like to discuss this matter further, please contact me at 706-821-1706.
Douglas A. Cheek, P .E.
County Engineer
Attachments
Cc: Teresa Smith, P.E., Director of Public Works
Drew Goins, Assistant Director.Engineering Division