HomeMy WebLinkAboutContract 39460-A1 (2)' of LAI . '
STATE OF TEXAS S CITY SECRETARY CONTRACT NO.�
(No M&C Needed)
COUNTY OF TARRANT S
WHEREAS, the City of Fort Worth (City) and Brown & Gay
Engineers, Inc., (Engineer) made and entered into City Secretary
Contract No. 39460, (the Contract) which was authorized by the
City Council by M&C C-23866 on the 20th day of October 2009, and
WHEREAS, the Contract involves engineering services for the
following project.
West Downtown Storm Drain Structural Rehabilitation Project,
Project No. 01364
WHEREAS, it has become necessary to execute Amendment No. 1
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 May 18, 2011, 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 $20,390.00.
2.
Article II 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 $261,677.00
FT. WORTH� TX
City of Fort Worth, Texas i I
Amendment to Engineering Agreement
PMO Official Release Date: 10.01.2010
Page 1 of 2
3.
A11 other provisions of the Contract which are not expressly amended
herein shall remain in full force and effect.
EXECUTED on this the rLL
Worth, Tarrant County, Texas.
ATTEST:
Marty Hendrix
City Secretary
APPROVAL
��s �-- �►,�, Gam'. V
day of
Douglas c* Wiersig, PE1 Director,
Transportation and Public Works
Brown & Gay Engineers, Inc.
Name: Dorian French, PE, RPLS, D.WRE
Senior Vice President
108 West 8th Street, Suite 200
Fort Worth, TX 76102
APPROVED TO FORM AND LEGALITY:
1 r
Assistant City Attorney
City of Fort Worth, Texas
Amendment to Engineering Agreement
PMO Official Release Date: 6.18.2010
Page 2 of 2
APPROVED:
Fernando Costa
Assistant City Manager
t� 1 k , in Fort
IKUWN
GAY
GNGINFEns, INC.
May 18, 2011
Mr. Michael Owen, PE
Senior Professional Engineer
Transportation and Public Works
City of Fort Worth
1000 Throckmorton
Fort Worth, TX 76102
Re: West Downtown Storm Drain Structural Rehabilitation, City Project No. 01364
Amendment No. 01
Dear Mr. Owen:
Per our previous discussion, Brown &Gay Engineers, Inc. (BGE) proposes that the 2D InfoWorks
modeling scenarios be performed by BGE. We have identified the additional scope items necessary to
complete this project. The additional work includes basic engineering services for Modeling, Reporting
and Data Collection as identified below:
Part A1—Additional Modeling
a. Obtain existing conditions 2D InfoWorks model of the Henderson St. (West Downtown) Storm
Drain System from Halff Associates.
Upon the City's request to Halff Associates to release the model to BGE, it will be assumed
by BGE that the City agrees with and accepts the model (and its results) as it is delivered to
BGE. This includes model methodology, hydrologic parameters, hydraulic parameters,
elevations, 2D meshes, results, other model components or results, etc. As such, BGE will
accept the model as it is delivered and will not validate the delivered model or its results.
Tliis model will be edited only for the scenarios discussed below.
b. Review Model
c. Model Scenarios (3)
1. Existing condition model with only the recommended improvements planned for C1N
and L18.
2. Proposed Condition model of CIN and L18 improvements if in -situ methods are used for
rehabilitation.
3. Proposed Condition model of L18 improvements if in -situ methods are used for
rehabilitation upstream and downstream of Radiology Associates with upstream
detention.
d. Analyze, Interpret, and Summarize Results
e. Draft Technical Memorandum
108 West eth Slreet • Sutle 200 •Fort Worth, Texas 76102 • TEL: 817-887-6130 •FAX: 817-887-6135 • www.hrowngay.com
Mr. Michael Owen, PE
May 18, 2011
Page 2
Part A2 -Data Collection
a. EST CCTV inspection services on line L-18 upstream of Radiology Associates.
In accordance with our contract, Article V, Section IC of the STANDARD AGREEMENT FOR
ENGINEERING SERVICES, Brown & Gay Engineers, Inc., requests an equitable adjustment to our
contract to account for the additional cost required to perform the City's requested additional services.
The proposed man hour breakdown for the additional services is attached. The proposed $20,390.00
lump sum fee for these services was determined based on the time estimated to complete at the hourly
rates outlined in Exhibit B-2, Hourly Rate Schedule from the STANDARD AGREEMENT FOR
ENGINEERING SERVICES. This includes $4,750 for M/WBE sub consultants resulting in
approximately 23% M/WBE participation for this amendment.
Please contact me at your earliest convenience, so we can discuss this matter and move to finalizing the
project for construction.
Sincerely,
Carl J. Krogness, PE
Project Manager
Attachments
Attachment A — Amendment No. 01
SCOPE OF SERVICES
DESIGN SERVICES: SWU PROJECT - DRAINAGE IMPROVEMENTS
West Downtown Storm Drain Structural Rehabilitation
City Project No. 01364
The following is tasks will be performed by the ENGINEER under ATTACHMENT "A". Work
under this attachment includes engineering services for paving and/or storm drain
improvements for the following:
10th Street. (Cherry Street to Lexington Street)
Lipscomb Street (Pennsylvania Ave to Broadway Ave)
Upon receipt of notice to proceed, the ENGINEER will perform the following tasks:
Part Al -Additional Modeling
a. Obtain existing conditions model of the Henderson St. (West Downtown) Storm Drain
System from Halff Associates.
This model is to be used as a "base" model for editing in evaluation of the various
scenarios described below. This model will also be used as a base line for comparison
to results produced by modeling the scenarios outlined below. These comparisons will
assume that model results produced by the existing conditions model obtained from
Halff & Associates have been deemed true, correct, or otherwise acceptable by the CITY
and will be considered by the ENGINEER to be true and correct. This also assumes that
items such as model hydrology, hydraulics, methods, surface elevations, hydraulic
parameters, hydrologic parameters, etc. have been accepted by the CITY and will be
accepted by the ENGINEER. As such, the ENGINEER will provide no further validation
of this model.
b. Review Model
Examine the existing conditions mode! obtained from Haiff Associates in order to get
familiar with the model set up, parameters and determine key locations or elements to
draw data from for comparison.
c. Model Scenarios (3)
ENGINEER will evaluate three (3) different scenarios in InfoWorks by editing the existing
model received from Halff Associates. The scenarios included will be as follows:
May 18, 2011
1. Existing condition :model with only the recommended improvements planned for
C1N and L18.
This model would reflect the immediate benefit in the vicinity of C1 N and L18 and
Amendment No. 01
Attachment A
2. impacts to the rest of the system prior to full implementation of the master plan.
It would allow the City to compare the level of protection provided to Radiology
Associates before and after proposed improvements.
3. Pro used Condition model of C1 N and L18 improvements if in -situ me#hods are
used for rehabilitation.
This would provide data to compare the difference in flood protection between
open cut and in -situ methods of reconstruction.
4. Proposed Condition model of L18 improvements if in-si#u methods are used for
rehabilitation upstream and downstream of Radiology Associates with upstream
detention.
This is to determine the viability of in -situ rehabilitation of the structurally deficient
lines upstream and downstream of Radiology Associates and identify the amount
of storage required to provide greater flood protection.
d. Analyze, Interpret, and Summarize Results
Confirm results, make suggestions if results are not as anticpa#ed, create comparison
tables to draw conclusions from, interpret and summarize results in writing.
e. Technical Memorandum
Write memo stating assumptions, methodology, results, findings, and recommendations.
Part A2 -Data Collection
a. EST CCTV inspection for L18 upstream of Radiology Associates to use in model
scenarios.
May 18, 2091
Amendment No. 01
Attachmen# A
2of2
ATTACHMENT B — Amendment No. 01
COMPENSATION AND SCHEDULE
Design Services for
West Downtown Storm Drain Structural Rehabilitation
City Project No. 01364
1. Compensation
A. The ENGINEER shall be compensated a total lump sum fee of $20,390.00 as
summarized in Exhibit "13-2" Payment of the total lump sum fee shall be
considered full compensation for the services described in Attachment A for all
labor materials, supplies, and equipment necessary to complete the project.
B. The ENGINEER shall be paid monthly payments as described in Exhibit B-1 Section
1 - Method of Payment.
Each invoice is to be verified as to its accuracy and compliance with the terms of
this contract by an officer of the ENGINEER.
il. Schedule
Completed Technical Memo summarizing the findings of the modeling effort will be submitted
within 60 calendar days after the receipt of the model from HOT Associates.
May 18, 2011
Amendment (Vo, 01
Attachment B
EXHIBIT 0-1 —Amendment No. 01
METHOD OF PAYMENT
(Supplement to Attachment B)
Design Services for
West Downtown Storm Drain Structural Rehabilitation
City Project No. 01364
I. Method of Payment
Partial payment shall be made to the ENGINEER monthly upon City's approval of an
invoice from the ENGINEER outlining the estimated current percent complete of the total
project.
The aggregate of such monthly partial fee payments shall not exceed the follovving;
Until satisfactory completion of Conceptual Engineering plan submittal and approval by
the City, a sum not to exceed 30 percent of the total lump sum fee less surveying and
construction services.
Until satisfactory completion of Preliminary Construction Plan submittal and approval by
the City, a sum not to exceed 60 percent of the total lump sum fee, less previous
payments and less surveying and construction services.
Until satisfactory completion of Final Construction plan submittal and approval by the
City, a sum not to exceed 90 percent of the total lump sum fee, less previous payments
and less surveying and construction services.
The balance of the earnings, less previous payments and less surveying and
construction services, shall be payable after Bid opening for the Project has been
conducted.
Surveying and construction services shall be paid after services are rendered.
I1. Progress Reports
A. The ENGINEER shall submit to the designated representative of the Director of the
Department of Transportation and Public Warks monthly progress reporfs covering all
phases of design In the format required by the City.
May 18, 2011
Amendment No. 01
Attachment B-1
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