HomeMy WebLinkAboutContract 26566 AMENDMENT NO. 3
STATE OF TEXAS S CITY SECRETARY CONTRACT NO.
(No M&C Needed)
COUNTY OF TARRANT $
WHEREAS, the City of Fort Worth (City) and Dunaway Associates,
Inc. , (Engineer) made and entered into City Secretary Contract No.
21808, (the Contract) which was authorized by the City Council by
M&C C-15707 on the 23th day of April 1996 and subsequently revised
by two previous amendment; and
WHEREAS, the Contract involves engineering services for the
following project:
Engineering contract for the design of Water Main
Rehabilitation Contract II.
WHEREAS, it has become necessary to execute Amendment No. 3 to
said Contract to include an increased scope of work and revised
maximum fee;
NOW THEREFORE, City and Engineer, acting herein by and through
their duly authorized representatives, enter into the following
agreement which amends the Contract:
1.
Article I of the Contract is amended to include the additional
engineering services specified in a proposal letter dated January
17, 20011 a copy of which is attached hereto and incorporated
herein. The cost to City for the additional design services to be
performed by Engineer total $11,830.00.
2.
Article III, Section D, of the Contract is amended to provide
for an increase in the maximum fee to be paid to Engineer for all
work and services performed under the Contract, as amended, so that
the total fee paid by the City for all work and services shall not
exceed the sum of $108,399.94.
LINY
3.
All other provisions of the Contract Which are not expressly amended
herein shall remain in full forceandeffect.
EXECUTED on this the ��y of fz&U 2001, in Fort
Worth, Tarrant County, Texas.
AT T: i1D _)GLIIe��
Contract Authorization
Gloria Pears n, City Secretary
Date
APPROVAL RECONIIdENDED: APPROVED:
A. Douglas Rademaker, P.E. Mike Groomer
Director, Department of Assistant City Manager
Engineering
DUNAMAY ASSOCIATES, INC.
ENGINEER
6a —BY: `,
N e Cs DeOtte P.E. R.P.L.S.
Vice President
1501 Merrimac Circle, Suite 100
Fort Worth, TR 76107-6572
APPROVED AS TO FORM AND LEGALITY:
Gary Steinberger
Assistant City Attorney
21808
-2-
DUNAWAY ASSOCIATES, INC.
ENGINEERS • PLANNERS • SURVEYORS
DAI No.9601600
January 17, 2001
Ms. Dena Johnson, P.E.
City of Fort Worth
Department of Engineering
1000 Throckmorton
Fort Worth,Texas 76102
Reference: Amendment No.3
Water Rehabilitation Contract II
Water Department Project No. PW 77-060770140500
D.O.E. Project No.2755
Dear Ms.Johnson:
Dunaway Associates, Inc. (DAI) is pleased to present this Amendment No. 3 for the following
additional services that were beyond our original scope of services:
• Survey and design for the addition of approximately 570 linear feet of 20-inch water line
and at the University Street bridge near Rockwood Park
A summary of the proposed budget for this revised amendment is as follows:
Additional survey for the bridge access roads and north bound bridge columns. Design of
appropriate thrust blocking &support detail by a structural engineer. Redesign of approximately
570 linear feet of 20-inch diameter water line at the University Street bridge near Rockwood Park
from a river crossing construction installation to a aerial bridge attachment on the north bound
lanes bridge, and design of re-route for approximately 30 linear feet of 8-inch retaining wall sub-
drain.
Fee Summary:
Civil Design Fee: 600 LF @$10.00/LF= $ 6,000.00
Survey:600 LF @$3.00/LF= $ 1,800.00
10%of sub-consultant $ 180.00
Structural Design $ 3,500.00
10%of sub-consultant $ 350.00
Subtotal $ 11,830.00
%FILf
1501 MERRIMAC CIRCLE • SUITE 100 • FORT WORTH,TEXAS 76107-6572 • (817)335.1121 • METRO(817)429-2135 • FAX(817)335-7437
• Amendment No. 3
January 17, 2001
Page 2
A summary of the total project fees is as follows:
Contract Description Fee
Original Contract Survey,design,studies, permitting,contract...........$ 33,997.44
documents for four water line crossings totaling
340 linear feet
Amendment No. 1 Redesign of 218 linear feet of water line due to......$ 57,572.50
TxDOT changes,studies, research, survey,
design,coordinations,and preparation of
contract documents for 1,400 linear feet of
36-inch diameter water line
Amendment No. 2 Coordination,studies,and research.........................$ 5,000.00
of 570 linear feet of water line&
30 linear feet of drain line
Amendment No.3 Survey and design of 570 linear feet of ...................$ 11,830.00
water line&30 linear feet of drain line
TOTAL PROJECT $................................................................................ .$10$3244
Please review the enclosed information and do not hesitate to call me if you have any questions or
require additional information regarding this revised proposal and our proposed MIWBE utilization
for the referenced project.
Very truly yours,
DUNAWAY ASSOCIATES, INC.
Brian Darby, P.E.
Associate
9601600_Ltr_DJohnsonAmend## 011701_BSD.doc
cc: Mr.Doo Kim,P.E.—City of Fort Worth,Water Department
�U a
FowWouti
MEMORANDUM
TO: A. Douglas Rademaker,Director, DOE and
Mike Groomer, Assistant City Manager
FROM: Dena Johnson, DOE
DATE: January 29, 2001
RE: AMENDMENT NO. 3 TO WATER MAIN REHABILITATION CONTRACT II
DOE NO. 2755, WATER PROJECT NO. PW77-060770140500
This amendment will compensate Dunaway Associates, Inc. for the additional civil design, struc-
tural design and survey services to be provided on the contract to address the following:
The original design provided for the installation of a 20 inch water transmission main underneath
the west fork of the Trinity River on the west side of the University Street bridge between Rock-
wood Park Drive and River Park.
Subsequent to commencing with construction, it was determined that the water main could not be
constructed (despite numerous attempts by the contractor) as designed because the extreme hard-
ness of a layer of solid rock which was encountered along the southern alignment of the proposed
main prevented sheet piling (which would have allowed for installation underneath the river) from
being driven into the river bottom. The existence of the solid layer of rock was unknown prior to
beginning construction of the project.
After reviewing several alternatives, it was decided that the water main should be suspended along
the northbound bridge structure of University Street. Dunaway Associates, Inc. will provide plans
and specifications for the new alignment.
Dunaway Associates, Inc., has submitted a proposal letter in the amount of$11,830.00 for the ad-
ditional services to be provided thereby increasing the contract fee from $96,569.94 to
$108,399.94. I believe this fee is fair and reasonable for the additional services to be provided.
Dena Johnson
cc: Berdena Hamilton
Dan Pepon
WEMO 2733
ENGINEERING DEPARTMENT
THE CITY OF FORT WORTH * 1000 THROCKMORTON STREET * FORT WORTH, TEXAS 76102-6311
(817) 871-7941 * FAX (817) 871-7854
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