HomeMy WebLinkAboutContract 38800-A1 AMENDMENT NO. I
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STATE OF TEXAS S CITY SECRETARY CONTRACT NO. P% '
(No M&C Needed)
COUNTY OF TARRANT
WHEREAS, the City of Fort Worth (City) and HDR Engineering,
Inc. , (Engineer) made and entered into City Secretary Contract No.
38800, (the Contract) which was executed administratively by the
City Manager on the 7th day of July, 2009; and
WHEREAS, the Contract involves engineering services for the
following project:
Eastland Creek Open Channel Study - Study No. SWS-019;
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 February 3, 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 $7,560.00.
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 $232,912.00.
City of Font Worth,Texas
Af ewvnent to Erqneeningx Feernent
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All other provisions of the Contract which are not expressly amended
herein shall remain in full force and effect.
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EXECUTED on this the ay of 2011, in Fort Worth,
Tarrant County, Texas.
ATTEST:
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Marty HendrixJ-) '6 "000
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City Secretary 0 NO M&C REQUI
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APPRQV RECOMMENDED. APPROVED:
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Greg SjtWn Directo4i Fernando Costa
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TPW St� ' ater Assistant City Manager
HDR Engineering, ._l
By
Name: Dennis Schulze, P.E.
Vice President
210 East 3rd Street, Suite 300
Fort Worth, Texas 76102
APPRO
VED AS TO FORM AND LEGALITY:
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Assistant City Attorney
CRY of Fort Worfln,Texas
Nmendrrnent to Engineering Agreement
MAO Official Relewse Date 6 1$8`201,10
Page 2,,f 2 R
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ONE COMPANY �Malq Solutions-
February 8, 2011
Mr. Steven Eubanks, P.E., CFM
Senior Professional Engineer
Storm Water Management
Transportation and Public Works Department
1000 Throckmorton Street
Fort Worth, Texas 76102
RE. Amendment No. 1
Eastland Creek Open Channel Study
City Project No. SINS-019
Dear Mr. Eubanks:
As we discussed at our meeting on January 21, 2011, this amendment
revises the previously approved Eastland Creek Open Channel Study, City
Secretary Contract No. 38800, City Project No. SWS-019. Specifically, this
amendment includes the incorporation of the 2009 LiDAR topo into the
HEC-RAS hydraulic model.
HDR completed the development of the HEC-RAS model in December of
2009, using the 2001 LiDAR topo, since the new 2009 LiDAR topo was still
under evaluation. In February of 2010, the 2009 LiDAR was accepted for
use in the Open Channel Studies program, and the notification of this status
also stated that exceptions would be made on a case by case basis for
consultants who were further along in their hydraulic modeling. Modifying
the HEC-RAS model to include the 2009 LiDAR topo improves the
consistency and applicability of the study project deliverables.
The specific work to be included in this amendment is as follows:
• Convert the 2009 geodatabase into a triangular irregular network
(tin).
• Recut and export cross section geometry using HEC-GeoRAS.
• Edit the geometry of 137 cross sections using HEC-RAS to
incorporate the 2009 overbanks.
• Redo the reach lengths and make changes to the ineffective flow
areas as needed.
• Cross check and review the updated cross sections.
Schedule
HDR estimates that it will take an additional 2 weeks to update the HEC-
RAS model The remainder of the project schedule will remain the same.
8 3-2 .r
Non ()NE COMPANY JAI'any Solutions-
Mr. Steven Eubanks, P.E., CFM
February 8, 2011
Page 2 of 2
Deliverables
Deliverables will remain the same as outlined in the contract.
Fee Estimate
NDR is proposing to complete the additional services outlined above for a
lump sum fee of$7,560. Invoices will be sent monthly and will be based
on a percent complete of the lump sum fee.
NDR's fees for the aforementioned services are itemized below:
Professional Services $ 7,560.00
Sub-Contracted Services 0.00
Expenses 0.00
Total Contract Amendment No. 1 Value: - 7,560.00
Contract value revisions are as follows:
Professional Services $ 225,352.00
Amendment request No. 1: $ 7,560.00
TOTAL CONTRACT AMOUNT 232,912.00
If you have any questions or there is additional documentation needed for
this work, please contact Mr. Curtis Beitel, P.E. at(817) 333-2817.
Since
Dennis Schulze, P.E.
Vice President
HDR Engineering, Inc.
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