HomeMy WebLinkAboutContract 35561-A2STATE OF TEXAS S CITY SECRETARY CONTRACT NO.�j�J
(No M&C Needed)
COUNTY OF TARRANT S
WHEREAS, the City of Fort Worth (City) and TranSystems
Corporation Consultants, (Engineer) made and entered into City
Secretary Contract No. 35561, (the Contract) which was authorized
by the City Council by M&C C-22145 on the 29th day of May 2007;
and
WHEREAS, the Contract involves engineering services for the
Following project.
Storm Water Utility Project: Longstraw Channel Improvements,
Project No. 00625, DOE No. 5554
WHEREAS, it has become necessary to execute Amendment No. 2
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 2 of the Contract is amended to include the
additional engineering services specified in a proposal letter
dated November 21, 2008, 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 $12,375.00.
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 $121,782.00.
(,� ORIGINAL
3.
All other provisions of the Contract and the prior amendment which
are not expressly amended herein shall remain in full force and effect.
EXECUTED on this the
Tarrant County, Texas.
ATTEST:
City Secretary
APPROVAL RECOMN�NDED:
Greg ns, P.E.
Acting r, Department of
Transportation and Public Works
TranSystems C
ENGINEER
By:
day of D(e . ,
ti:on Consultants
Name: Raul Pena, III, P.E.
Regional Vice President
501 West 7"' Street, Suite 1100
Fort Worth, Texas 76102
APPROVED
Assistant
At
LEGALITY:
-2-
APPROVED:
2008
, in Fort Worth,
Fernando Costa
Assistant City Manager
t Syste1»0�
November 21, 2008
Mr. Michael Owen, P.E.
City of Fort Worth
1000 Throckmorton Street
Fort Worth, TX 76102
TranSystems
Bank of America Building
500 West 7`t' Street
Suite 1 100
Fort Worth, TX 76102
Tel 817 339 8950
Fax 817 336 2247
www.transystems.com
SUMMARY OF DESIGN FEE
RE: Amendment No. 2
Storm Water Utility Projects — Longstraw Channel
DOE # 5554
Storm Water Project No. P228-531200 2042800625 83
Dear Mr. Owen,
Per your request, this amendment revises the previously approved Storm Water Utility Projects, City
Secretary Contract No. 35561 design plans and contract documents. Specifically, this amendment includes
the provision of Subsurface Utility Engineering for specific portions of the project. This work is to be
included with and will augment the storm water evaluations and designs associated with the original
contract. The specific work to be included is as follows:
• Longstraw Channel —
o Preparation of SUE Level B along 40' Drainage Right -of --Way between North Beach to
Strawberry Way approximately 2250 LF.
SUE —Longstraw Channel
Administrative (10%) Fee on MWBE Firms
Total Contract Amendment No. 2 Value:
Contract value revisions are as follows:
Original Contract Fee: $73,927.00
Amendment No. 1: 35 480.00
Amendment No. 2: 12 375.00
$ 11,250
= 1 125
Page 2 of 2
November 21, 2008
TOTAL CONTRACT $121,782.00
Thank you for your consideration. Please contact me should you require any additional information.
Sincerely,
TranSystems Corporation Consultants
P. Schellbach, P.E.
' Municipal Services Team Leader
Attachments
G:IFWO610377tProjectMgmtlProposallAmendment 21Letter amendment_2_2008-11-21.doc
3tvrron ona & Associates, Inc.
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November 17, 2008
Mr. Michael Hobbs, P.E.
TranSystems, Inc.
500 West 7`s Street
Suite 600
Fort Worth, Texas 76102
RE: Subsurface Utility Engineering
Longstraw Channel
Fort Worth, Texas
Dear Mr. Hobbs:
Gorrondona and Associates, Inc. (GA), is pleased to submit a cost proposal for Subsurface Utility
Engineering (SITE) required for the above referenced project. This proposal is based on information
obtained during our meeting and information received on November 5, 2008.
Introc)<uction
GA will perform the SUE work required for this project in general accordance with the recommended
practices and procedures described in ASCE Publication CUASCE 38-02 (Standard Guideline for the
Collection and Depiction of Existing Subsurface Utility Data). As described in the mentioned ASCE
publication, four levels have been established to describe the quality of utility location and attribute
information used on plans. The four quality levels are as follows:
• Quality Level D (QL"D") —Information derived from existing records;
• Quality Level C (QL"C") - QL"D" information supplemented with information obtained by
surveying visible above -ground utility features such as valves, hydrants, meters, manhole
covers, etc.
• Quality Level B (QL"B") — Two-dimensional (x,y) information obtained through the
application and interpretation of non-destructive surface geophysical methods. Also known as
"designating" this quality level provides the approximate horizontal position of subsurface
utilities within approximately one foot.
• Quality Level A (QL"A") — Also known as "locating", this quality level provides precise three
dimensional (x,y,z) information at critical locations by exposing specific utilities. Non-
destructive vacuum excavation equipment is used to expose the utilities at specific points
which are then tied down by survey.
It is the responsibility of the SUE provider to perform due -diligence with regard to records research
(QL "D") and acquisition of available utility records. The due -diligence provided for this project will
consist of reviewing the "As -Built" documents previously compiled by others. Utilities that are not
identified through these efforts will be here forth referred to as "unknown" utilities. GA personnel
will scan the defined work area using electronic prospecting equipment and Ground Penetrating Radar
(GPR) to search for "unknown" utilities. However, GA is not responsible for designating or locating
these "unknown" utilities. 11
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November 17, 2008
Page 2. of i
Scone of Work
Based on information provided by TranSystems, GA has developed a preliminary scope for the SITE
work required for this project. The scope of work may be modified, with TranSystems concurrence,
during the performance of the SITE fieldwork if warranted by actual field findings.
The scope of this proposal includes Quality Level "B" SUE services between North Beach Street and
Strawberry Way within the existing 40-foot drainage ROW. The length of this project is
approximately 2,250 linear feet and includes designating in North Beach and Strawberry Way.
All required surveying for this project will be completed by others. An electronic copy will be
delivered to GA for review.
Desinnating Procedures
Prior to beginning field designating activities, GA's field manager will review the project scope of
work and available utility records. Once these initial reviews are complete, the field manager and
technicians will begin designating the approximate horizontal position of known subsurface utilities
within the specified project limits. A suite of geophysical equipment (electromagnetic induction,
magnetic) will be used to designate metallic/conductive utilities (e.g. steel pipe, electrical cable,
telephone cable). Non-metallic/non-conductive utilities will be designated using other proven
methods, such as rodding, and probing. Where access is available, a sonde will be inserted into the
utility line (e.g. PVC gravity sewer pipe) to provide a medium for signal transmission, which can then
be designated using geophysical equipment.
Accurate collection and recording of designated utilities is a critical component of the SUE process.
GA has developed a proven method of collecting and recording survey information once the utilities
have been designated in the field. GA's field manager will produce detailed sketches depicting each
utility as well as relevant surface features such as roadways, buildings, manholes, fire hydrants, utility
pedestals, valves, meters, etc. Each utility will be labeled with a unique ID code. For example, if two
buried electric cables exist on the project, one will be labeled E1 and the other E2. Paint and pin flags
will be used to designate the utilities in the field. A labeled pin flag or paint mark will be used to mark
each location where a survey shot is required. Shot points will typically be placed at 100-foot
intervals on utilities running parallel to the alignment and at 50400t intervals on utility crossings. The
locations will be numbered sequentially for each individual utility line. For example, if there are 50
shots required on buried electric line El, the points will be numbered El-1 through E1-50.
Preliminary field sketches depicting the designated utilities will be prepared for use during subsequent
surveying activities. These sketches will also be used to check the survey information for
completeness and accuracy.
Deliverables
GA will produce a SITE file depicting the type and horizontal location of the designated utilities.
Where no test -holes have been completed, the size and material type will be provided, only if the
information is indicated on available record drawings. TranSystems will provide GA with base
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map/topographic files in Microstation V8 or AutoCad format for use in preparing the SLTE file. GA
will utilize it's standard utility line styles and symbology to produce the utility file.
Schedule
Records review can commence upon receipt of a formal notice to proceed (NTP) from the
TranSystems. Designating field work can commence within 2 days after receipt of NTP. GA
estimates that the designating phase of work can be completed in eight (8) workdays.
t
GA proposes to perform the work on a linear foot basis of $5.00 per linear foot. Based on the
schedule listed above and linear footage of 2,250 linear feet the project the cost for designating,
QL"B" is eleven thousand, two hundred fifty dollars and 00/100 cents ($11,250.00).
We look forward to working with you on this very important project. >f you have any questions or
require additional information, please contact me.
Sincerely,
Gorrondona &Associates, Inc.
Jeffrey K. Vick
Division Manager
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