CM-13-10-183ROUND ROCK, TEXAS
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City of Round Rock
Agenda Item Summary
Agenda Number:
Title: Consider executing Supplemental Contract No. 5 with Atkins North
America, Inc. for the Creek Bend Boulevard Project.
Type: City Manager Item
Governing Body: City Manager Approval
Agenda Date: 10/11/2013
Dept Director: Gary Hudder, Transportation Director
Cost: $0.00
Indexes: 2002 General Obligation Bonds
Attachments: SC#5 with Atkins North America for Creek Bend Blvd Extension
(00283247)
Text of Legislative File CM -13-10-183
Supplemental Contract #5 consists of revising the scope of Supplemental #4 to allow for
both geophysics studies and geotechnical investigations to be performed as part of an
assessment of voids and related features along the proposed Creek Bend Blvd alignment.
The budget from Supplemental #4 will remain unchanged and will be the sole source of
budget for Supplemental #5. The entirety of the scope will not be able to be completed
within the available budget. Individual tasks that include portions of the scope below will be
completed on an as directed basis. A fee for each task will be agreed upon before notice to
proceed. Tasks can be assigned until such time that the total budget associated with
Supplemental #4 is exhausted.
Staff recommends approval.
City of Round Rock Page 1 Printed on 10/14/2013
LEGAL DEPARTMENT APPROVAL FOR CITY COUNCIL/CITY MANAGER ACTION
Required for Submission of ALL City Council and City Manager Items
Department Name: Transportation
Project Mgr/Resource: Leah Coffman
ElCouncil Action:
ORDINANCE
Agenda Wording
Project Name: Creek Bend Boulevard
ContractorNendor: Atkins North America, Inc.
n RESOLUTION
FiCity Manager Approval
CMA Wording
Consider executing Supplemental Contract No. 5 with Atkins North America, Inc. For the Creek Bend Boulevard Project.
Attorney Approval
Attorney
Notes/Comments
Date
O:\wdox\SCCInts10199\7202\MISC100283326.XLS Updated 6/3/08
STATE OF TEXAS
COUNTY OF WILLIAMSON
SUPPLEMENTAL CONTRACT NO. 5
TO CONTRACT FOR ENGINEERING SERVICES
FIRM: ATKINS NORTH AMERICA, INC. ("Engineer")
ADDRESS: 6504 Bridge Point Parkway, Suite 200, Austin, TX 78730
PROJECT: Creek Bend Boulevard
This Supplemental Contract No. 5 to Contract for Engineering Services is made by and between
the City of Round Rock, Texas, hereinafter called the "City" and Atkins North America, Inc.,
hereinafter called the "Engineer".
WHEREAS, the City and Engineer executed a Contract for Engineering Services, hereinafter
called the "Contract", on the 26th day of January, 2012 for the Creek Bend Boulevard Project in
the amount of $179,898.43; and
WHEREAS, the City and Engineer executed Supplemental Contract No. 1 on July 12, 2012 to
amend the scope of services and to increase the compensation by $805,808.42 to a total of
$985,706.85; and
WHEREAS, the City and Engineer executed Supplemental Contract No. 2 on December 14,
2012 to amend the scope of services and to increase the compensation by $21,570.57 to a total of
$1,007,277.42; and
WHEREAS, the City and Engineer executed Supplemental Contract No. 3 on March 8, 2013 to
amend the scope of services and to increase the compensation by $49,900.00 to a total of
$1,057,177.42; and
WHEREAS, the City and Engineer executed Supplemental Contract No. 4 on August 22, 2013
to amend the scope of services and to increase the compensation by $160,332.84 to a total of
$1,217,510.26; and
WHEREAS, it has become necessary to amend the Contract to modify the provisions for the
scope of services;
NOW THEREFORE, premises considered, the City and the Engineer agree that said Contract
is amended as follows:
Supplemental Contract Rev. 12/01/08
0199.7202; 00283247 84275
ST33CBDR
C -'5- \O -18 3
I.
Article 2, Engineering Services and Exhibit B, Engineering Services shall
forth in the attached Addendum To Exhibit B.
IN WITNESS WHEREOF, the City and the Engineer have executed
Contract in duplicate.
ATKINS NORTH 'IERICA,
By:
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Date
CITY OF ROUND ROCK
By:
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Date
Supplemental Contract
0199.7202; 00283247
ST33CBDR
2
APP
be amended as set
this Supplemental
VED AS TOIFORM:
4,tlkk, �, S
Stepha , L. Sheets, City Attorney
Rev.12/01 /08
84275
ADDENDUM TO EXHIBIT B
Engineering Services
PROJECT DESCRIPTION
This Supplemental Contract #5 consists of revising the scope of Supplemental #4 to allow for
both geophysics studies and geotechnical investigations to be performed as part of an assessment
of voids and related features along the proposed Creek Bend Blvd alignment. The budget from
Supplemental #4 will remain unchanged and will be the sole source of budget for Supplemental
#5. The entirety of the scope below will not be able to be completed within the available budget.
Individual tasks that include portions of the scope below will be completed on an as directed
basis. A fee for each task will be agreed upon before notice to proceed. Tasks can be assigned
until such time that the total budget associated with Supplemental #4 is exhausted.
TASK 1: SURVEYING -- Not Included with this Supplemental
TASK 2: ROUTE STUDY -- Not Included with this Supplemental
TASK 3: ENVIRONMENTAL STUDIES
1. Atkins will provide oversight during the geophysics studies and geotechnical
investigations being performed by Round Rock Geophysics, LLC
2. Round Rock Geophysics, LLC will conduct geophysical studies on an as needed basis
within the proposed Creek Bend Blvd right-of-way between stations 11+30 and 23+25.
The objective of these studies is to assess the presence of voids and related features via a
noninvasive technique that retains the biological integrity of the subsurface voids. The
proposed geophysical method is called seismic refraction tomography, which uses
compressional wave (P-wave) and shear wave (S -wave) travel time measurements,
thereby creating 2D and 3D images of the subsurface velocity structure.
Data will be collected along seven parallel lines oriented along the proposed alignment of
Creek Bend Blvd and spaced approximately 20 feet apart. Each line will have a survey
length of approximately 400 feet. There will be a total of 7 shot points per line and a
geophone spacing of 5 -foot. A land streamer with 8 -Hz vertical geophones will be used
to collect data. A minimum depth of exploration of 25-35 feet is planned.
The field data will be downloaded and processed using industry standard software
packages. The RREG report will include:
• Description of the data acquisition procedures
• Equipments and software used for data collection
• Data quality and site condition
• Data processing procedures
• Results of data processing (2D and 3D displays)
1
• Interpretation of the final results in terms of characterizing the void and associated
features,
• Conclusion and recommendation
• Final site visit would be planned to mark the horizontal dimensions of the void on the
surface.
3. Round Rock Geophysics, LLC will conduct geotechnical investigations on an as needed
basis within the proposed Creek Bend Blvd right-of-way consisting of a maximum of 25
bores at a depth of 40 feet each. The investigations will be done over the course of a
maximum of 4 separate mobilizations. Location of the bores will be selected based upon
the findings of the seismic refraction tomography analysis being performed. Detailed
geological logging of the core samples will be made. This will include:
• Borehole location coordinates in relation to the seismic survey lines
• Date of drilling,
• Drilling company and personnel, logger
• Total depth,
• Type of drilling,
• Lithology,
• Groundwater depth,
• Rock hardness,
• RQD,
• Size and depth of voids, fractures and weathering zones, water loss
Drilling site preparation and clearing will be performed as necessary. A report will be
prepared documenting the drilling samples analysis.
TASK 4: PRELIMINARY DESIGN/30% PLANS — Not Included with this Supplemental
TASK 5: PROJECT MANAGEMENT
1. Subconsultant management and other project management duties.
TASK 6: DIRECT EXPENSES — Not Included with this Supplemental
TASK 7: WATER IMPROVEMENTS — Not Included with this Supplemental
TASK 8: UTILITY LOCATIONS/LAYOUTS — Not Included with this Supplemental
TASK 9: GEOTECHNICAL DESIGN — Not Included with this Supplemental
TASK 10: 60% PLANS — Not Included with this Supplemental
TASK 11: 95% PLANS — Not Included with this Supplemental
TASK 12: 100% PLANS/FINAL SUBMITTAL -- Not Included with this Supplemental
2
NOT INCLUDED WITHIIN THIS SCOPE
The following items are not included with this scope. These items, if necessary, would be added
to the scope through a supplemental agreement.
1. Subsurface void(s) entry and exploration, biological surveys, and/or surveying and
mapping.
2. Coordination with any state or federal agency.
DELIVERABLES
1. Geophysics study report(s)
2. Report(s) documenting the drilling samples analysis
3