CM-2021-300 - 11/12/2021STATE OF TEXAS §
COUNTY OF WILLIAMSON §
SUPPLEMENTAL CONTRACT NO. 2
TO CONTRACT FOR ENGINEERING SERVICES
FIRM: HALFF ASSOCIATES INC. ("Engineer")
ADDRESS: 9500 Amberglen Boulevard, Building F. Suite 125, Austin, TX 78729
PROJECT: Wyoming Springs Segment 1
This Supplemental Contract No. 2 to Contract for Engineering Services is made by and between
the City of Round Rock, Texas, hereinafter called the "City" and Halff Associates, Inc.,
hereinafter called the "Engineer".
WHEREAS, the City and Engineer executed a Contract for Engineering Services, hereinafter
called the "Contract", on the 22nd day of August, 2019 for the Wyoming Springs Segment I
Project in the amount of $546,776.54; and
WHEREAS, the City and Engineer executed Supplemental Contract No. I on January 14, 2021
to amend the scope of services and to increase the compensation by $1,641,846.00 to a total of
$2,188,622.54; and
WHEREAS, it has become necessary to amend the Contract to modify the provisions for the
scope of services and to increase the compensation by $42,481.75 to a total of $2,231,104.29;
NOW THEREFORE, premises considered, the City and the Engineer agree that said Contract
is amended as follows:
Article 1, City Services and Exhibit A, City Services shall be amended as set forth in the
attached Addendum To Exhibit A.
Article 2, En ineering Services and Exhibit B, Engineering Services shall be amended as set
forth in the attached Addendum to Exhibit B. Exhibit C, Work Schedule shall be amended as set
forth in the attached Addendum to Exhibit C.
Supplemental Contract Re%-.06116
0199 1931.4863-2003-3025 64275
(?Al - 202 (- 2(7r,,
Article 4, Compensation and Exhibit D,_ Fee Schedule shall be amended by increasing by
$42,481.75 the lump sum amount payable under the Contract for a total of $2,231,104.29, as
shown by the attached Addendum to Exhibit D.
IN WITNESS WHEREOF, the City and the Engineer have executed this Supplemental
Contract in duplicate.
[signature pages follow]
Supplemental Contract
0199 1931 . 4863-2003-3025
Rc%-.06! 16
84275
HALFF ASSOCIATES, INC.
By: —
PlG Mq
Date
Supplemental Contract Rev,06/16
0199.1931,4963-2003-3025 84275
CITY ROUND ROCK APP ED AS TO FORM:
By: ci
Laurie H dley, City Manager Stephan ,. Sheets, City Attorney
I&
Date
Supplemental Contract Re,,-.06f 16
0199 1931,4863-2003-3025 842?5
ADDENDUM TO EXHIBIT A
City Services
WYOMING SPRINGS SEGMENT 1
FINAL DESIGN AND PERMITTING
FROM CREEK BEND BLVD/ BRIGHTWATER BLVD TO SAM BASS ROAD
The City will furnish to the Engineer the following information and/or perform the
following tasks:
• Provide the Engineer with access to the right-of-way for obtaining SUE field data.
• Approve the photometric analysist of street lighting layout before Engineer
proceeds with electrical design.
• Schedule and conduct a Public Hearing (can be an agenda item on a regular
council meeting) with documents to be provided by the Engineer
• Assist the Engineer, as needed, in obtaining data and information from the State,
County, and/or other franchise utility companies.
• Provide timely review of deliverables from the Engineer.
• Coordinate and communicate project items and progress to other city
departments, as appropriate.
Exhibit A
Wyoming Springs Segment 1 - - Final Design and Permitting SC#2 Page 1 of 1
ADDENDUM TO EXHIBIT B
Engineering Services
WYOMING SPRINGS SEGMENT 1
FINAL DESIGN AND PERMITTING
FROM CREEK BEND BLVD/ BRIGHTWATER BLVD TO SAM BASS ROAD
For the scope of services for this contract, the Engineer shall provide professional
services for Final Design and Permitting. Engineer will provide services described in
further detail as follows:
Task 6 - Additional Subsurface Utility Engineering (SUE) and Survey
6.1 Additional QL-B SUE along Sam Bass Road
• The original SUE limits were based on the schematic, which only
proposed work on the south side of Sam Bass Road. The final version of
the schematic and plans requires work on the north side of the road, so
additional SUE work is needed to analyze and clear any utility conflicts.
6.2 Additional QL-A SUE test hole on city owned 24" wastewater line
• The north abutment of Dry Fork Creek bridge spans the existing 24" WW
line so achieving clearance from proposed drilled shafts to the WW line is
vital to the successful design and construction of the bridge. The needed
test hole location is on a steep rock slope and inaccessible for the
standard Vacuum excavation truck, so subconsultant Badger Daylighting
will excavate the location, the Engineer will obtain the needed x, y, z
coordinates, and then Badger will backfill the excavation back to the
original ground line. Engineer will then ensure sufficient design clearance
to the proposed bridge foundation.
6.3 Additional survey parcel preparation
The engineer will prepare one additional parcel with surveyed metes and
bounds (with sketch) of a right-of-way tract to be transferred from
Williamson County to the city. The parcel will be prepared and signed by
a Registered Professional Land Surveyor in the State of Texas.
Task 7 - Electrical Engineering
7.1 Electrical Design for Street Lights -
• The Engineer will prepare electrical design for city owned street lights,
including voltage calculations, conductor sizing, and coordination with Oncor
for electrical services.
Exhibit B
Wyoming Springs Segment 1 Final Design and Permitting SC#2 Page 1 of 2
7.2 Conduit Plan - (for future use)
• Engineer will design two (2) four inch (4") spare conduits for the entire length
of project with ground boxes every 500 feet (in shared trench with streetlight
conduits where feasible).
Task 8- Permitting
8.1 Public Hearing for Parkland Acquisition -
• Deed research during parcel preparation has determined that land owned by
Fern Bluff M.U.D was designated as parkland. Chapter 26 of the Texas
Parks and Wildlife Codes governs the use or taking of any public park land
and requires public notice and hearing prior to such taking. Engineer will
provide the required alternatives analysis and support a public hearing in
accordance with the Code, including notifications to the landowner (M.U.D.).
8.2 TCEQ Organized Sewage Collection System (SCS) Plan and Permit-
SCS plans are required for new length of sewage system within the Edwards
Aquifer. Since no new length of wastewater sewer was proposed, no SCS
was included in the design scope within SC#1. However, there are manhole
adjustments required and the TCEQ reviewer (for the WPAP, which was
scoped and is being prepared), is requiring (out of an abundance of caution)
that an SCS plan should be prepared and submitted. So, the Engineer will
prepare SCS plan and submit to TCEQ, along with the $800 permit fee.
EXHIBIT B OVERALL SUMMARY OF DELIVERABLES:
• Quality Level A - SUE Test hole of 24" Wastewater Line
• Quality Level B - SUE of buried utilities on north side of Sam Bass Road
• SCS application submittal with fee and obtain approval from TCEQ
• Chapter 26 and Public Hearing documents
• Electrical Design PS&E for streetlights and spare 4" conduit layouts
Services Excluded from this ScoQe of Services:
• Construction Phase Services
• Property appraisals negotiations or acquisitions
The Engineer will perform the services to be provided under this agreement out of
Engineer's office(s) as listed below:
Office Location
Halff Associates, Inc.
9500 Amberglen Blvd
Building F, Suite 125
Austin, TX 78729
Sub -Consultants:
Badger Daylighting Corp.
E=xhihil B
Wyoming Springs Segment 1 - Final Design and Permitting SC#2 Page 2 of 2
ADDENDUM TO EXHIBIT C
Work Schedule
Task 6 (SUE) - Engineer to complete field work within 30 days and incorporate
into the 90% design plans
Task 7 (Electrical) - Engineer to complete electrical engineering and incorporate
into the 90% design plans
Task 8 (Permitting) - Engineer to complete SGS and submit to TCEQ with the
90% design plans
Exhibit C
Wyoming Springs Segment 1 - - Final Design and Permitting SC#2
ADDENDUM TO EXHIBIT D
Fee Schedule
Fees to be billed on a lump sum basis monthly as a percentage of work
completed to date.
TASK 6 - Additional SUE and survey
TASK 7 - Electrical Engineering
TASK 8 - Permitting
TOTAL FEE
Exhibit D
Wyoming Springs Segment 1 - Final Design and Permitting SC#2
$ 15, 749.75
$ 16,640.00
$ 10,092.00
$ 42,481.75
8lINIIIIIII
H
City of Round Rock
ROUNDROCK
TEXA5 Agenda Item Summary
Agenda Number:
Title: Considering executing Supplemental Contract No. 2 with Halff Associates, Inc. for
the Wyoming Springs Segment 1 Project.
Type: City Manager Item
Governing Body: City Manager Approval
Agenda Date: 11/12/2021
Dept Director: Gary Hudder, Transportation Director
Cost: $42,481.75
Indexes: RR Transportation and Economic Development Corporation (Type B)
Attachments: SC No. 2, wyoming springs
Department: Transportation
Text of Legislative File CM-2021-300
Consider a resolution authorizing the City Manager to execute Supplemental Agreement #2 with Halff,
Associates, Inc. to provide additional services required for the project. These services include:
1. Additional SUE and Surveying to accommodate work in additional areas for the project, to
locate a city owned 24" wastewater line to ensure the new structure will not be in conflict, and additional
survey parcel preparation for ROW tracts to be transferred from Williamson County.
2. Electrical design for City owned street lights not originally included in the design scope.
3. Public Hearing for Parkland Acquisition from the Fern Bluff MUD.
4. TCEQ Organized Sewage Collection System (SCS) Plan and Permit for the new length of sewage
system within the Edward's Aquifer. This includes preparation of the permit and the $800 permit fee.
All these items are required to complete the 100% design of the project.
The additional fee for this work is $42,481.75 which brings the total contract price to$2,231,104.29 when
added to the previous contract price of $2,188,622.54.
Cost: $42,481.75
Source of Funds: RR Transportation and Economic Development Corporation
City of Round Rock Page 1.