CM-2023-267 - 11/3/2023STATE OF TEXAS §
COUNTY OF WILLIAMSON §
SUPPLEMENTAL CONTRACT NO. 2
TO CONTRACT FOR ENGINEERING SERVICES
FIRM: LJA ENGINEERING, INC. _ ("Engineer")
ADDRESS: 7500 Rialto Boulevard, Austin, TX 78735
PROJECT: Round Rock West Area 5 — Water, Wastewater and Storm
Drain Improvements
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 LJA Engineering, Inc.,
hereinafter called the "Engineer."
WHEREAS, the City and Engineer executed a Contract for Engineering Services, hereinafter
called the "Contract," on February 24, 2022 for the Round Rock West Area 5 — Water, Wastewater
and Storm Drain Improvements Project in the amount of $365,901.25; and
WHEREAS, the City and Engineer executed Supplemental Contract No. 1 on February 24, 2023
to amend the scope of services and to increase the compensation by $31,159.59 to a total of
$397,060.84; 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 $76,694.00 to a total of $473,754.84;
NOW THEREFORE, premises considered, the City and the Engineer agree that said Contract is
amended as follows:
Article 2, Engineering 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.
Article 4, Compensation and Exhibit D, Fee Schedule shall be amended by increasing by
$76,694.00 the lump sum amount payable under the Contract for a total of $473,754.84, as shown
by the attached Addendum to Exhibit D.
IN WITNESS WHEREOF, the City and the Engineer have executed this Supplemental Contract
in duplicate.
Supplemental Contract Rev.06r16
0199 202208,4855-0113-9080 84275
LJA ENGINEERING, INC.
A.
Brian Youn , PE
10/24/2023
Date
Supplemental Contract Rev.06? 16
0199 202208,4855-0113-9080 84275
CITY OF OUND ROCK
By:
Laurie Hadley, City Manager
//- 3- 01)
Date
Supplemental Contract
0199 202208, 4855-0113-9g80
APPROVED AS TO FORM:
Stephanie L. Sandre, City Attorney
Rev.06.+ 16
84275
City of Round Rock RRW Area 5 Water, Wastewater,
Contract for Engineering Services and Storm Drain Improvements
ADDENDUM TO EXHIBIT B
Engineering Services
Round Rock West Area 5 Water, Wastewater,
and Storm Drain Improvements
General Work Description:
The purpose of Area 5 supplemental #2 is for additional services required to design
approximately 500' of proposed water line on Scenic Loop. This includes additional topographic
survey and SUE (Level B) collection, traffic and erosion control design, and water line design.
Additional effort for project management, construction phase services, and to evaluate federal
guidelines and permitting requirements is also included.
TASK 1. PROJECT MANAGEMENT
A. Prepare monthly invoices for submission to the City for all requests for payment.
B. Produce Project Scheduling
C. Team meetings (6)
D. Utility Coordination Meetings (2)
E. QA/QC Models, Exhibits, Calculations, Assumptions
TASK 2. TOPOGRAPHICAL SURVEY
The Engineer Shall:
1. Plan and coordinate survey activities for the topographic work
and prepare a survey report of the final findings obtained in the
field.
2. Perform a control survey and set 2 semi -permanent monuments either
a Mag Nail and tag washer or a 5/8" iron rod with control cap at each
end of the location I corridor.
3. Collect topographic field data from right-of-way to right-of-way
for Area 5 (500 lineal feet) and two 50-foot x 50-foot square
areas as shown in Figure 1, outlined in red. All ground features
will be included but not limited to, natural ground spot
elevations, grade breaks, slope tops and bottoms, edge of
pavement, drainage structures, visible utilities, fences, hardwood
trees 6" and larger, power poles, etc. LJA will collect dense
enough data to create l' contours.
4. Prepare an electronic control, design survey topographic base
map and surface files in AutoCAD (DWG) for CORR and
MicroStation (DNG) format for Internal. Property and parcel
lines will be shown based on field survey and available electronic
information obtained from Williamson County Appraisal District
City of Round Rock
Contract for Engineering Services
RRW Area 5 Water, Wastewater,
and Storm Drain Improvements
and the County Recorders Office. Deliverables will include
signed and sealed control map sheet, electronic copies of the base
map, field notes and sketches, photographs of control monuments
and structures and an electronic point file.
5. Provide electronic copies of all QA/QC documents created
to check the calculation and mapping results for final
delivery.
ASSUMPTIONS
In preparing this proposal, we have made the following assumptions:
• There are no access issues, boundary problems, disputes, or lawsuits associated with the
tracts, which would affect the completion of the survey work.
• No Title will be needed for this survey. If needed, Title Commitment will be provided by
Client or Clients Representative.
• LJA Survey will perform the research for the subject tracts to be shown in the base map
at the Williamson County Appraisal District web site. The position of the electronic files
will be imported into the base map for approximate location only.
• No individual Boundary Survey plats, setting property corners or metes and
bounds descriptions will be needed in this survey. If needed, these boundary
surveying services will require additional scope and cost utilizing either a
Lump Sum or Time and Materials fee per our rate sheet will apply.
Figure 1: Location 3 — Scenic Loop
City of Round Rock RRW Area 5 Water, Wastewater,
Contract for Engineering Services and Storm Drain Improvements
TASK 3. SUBSURFACE UTILITY ENGINEERING
3.1 SUE LEVEL B
LJA Survey will provide SUE QL-D utility research, SUE QL-C on above ground visible
utilities, SUE QL-B designation (along 500 lineal feet of roadway from right of way to right of
way and along a 50-foot x 50-foot area).
• Contact Texas 811 and produce ticket submittals for all utilities within the project area to
mark their utilities before field personnel are mobilized to project site for survey.
• Perform records research for all utility assets within the specified areas in Figure 1 above
including from the Right -of -Way to Right -of -Way.
• Collect field data on all above ground visible utilities within the specified area in Figure
above.
• Provide designation, survey locations and deliverables of all underground utilities (SUE)
within the specified area in Figure l above.
• Collect depth, or approximate cover of facilities where possible and only to the extent
that the depth can be determined during the Level B location.
• Provide SUE Quality Level B mapping as defined by the American Society of Civil
Engineers "Standard Guideline for the Collection and Depiction of Existing Subsurface
Utility Data" for this Scope of Work.
DELIVERABLES
• Microstation SS 10 CAD Base File (Internal)
• AutoCAD Base File (City)
• PNEZD Point File in .txt format
• Field notes and photos taken at time of survey
ASSUMPTIONS
• No lanes of traffic will need to be closed for this scope of work.
• No survey work will need to be performed within any lanes of traffic.
• LJA Survey will utilize traffic control plans established by TXDOT to complete this
scope of work.
• Boundary, surface topography or as-builts will not be necessary for this scope of work.
• Ground penetrating radar will not be necessary.
• If soil conditions exist such as hard rock/limestone that prevent excavation efforts, work
will cease, and Client or client's representative will be notified and wait for issue to be
addressed.
City of Round Rock
Contract for Engineering Services
RRW Area 5 Water, Wastewater,
and Storm Drain Improvements
• If excessive ground or drainage runoff water is encountered, Client will have the option
of having LJA Survey skip over the area or direct to continue with excavation efforts
based upon the Time and Materials schedule.
• If soil contaminants are encountered that result in additional handling and disposal
requirements, additional costs may apply according to the agreed upon rate schedule on a
Time and Materials basis.
• If for any reason, the scope of work is altered beyond what is agreed upon within this
document, work will cease until such time as a Change Order may be generated and
executed for agreement of additional services.
• Clearance of existing transmission lines and other features will not hinder access of
excavation truck mobilization to survey locations or work to be performed at each test
hole location.
• No permits will be needed for this scope of work. Notification to CORR will be provided
prior to commencing field work.
• Work that requires any type of air respirators will result in additional charges for
equipment and compensation for additional time.
• LJA will request from Client to dump any excess excavated spoils at a location on -site, if
possible.
• If applicable, Client will provide a nearby water source for excavation truck to utilize
during performance of survey.
• Client will provide all necessary site or project specific orientations or training before
LJA field personnel or sub -contractors are mobilized to project site.
• No construction services are included for this scope of work.
• No ALTA or Metes and Bounds description will be needed for this scope of work.
TASK 4. GEOTECHNICAL ENGINEERING — BEYOND (SUB)
No additional effort requested.
TASK 5. ENVIRONMENTAL STUDIES
5.1 WPAP EXCEPTION AND SCS PLAN
The Engineer will update the WPAP Exception and SCS Plan to include the added work area.
Coordination with TCEQ and permit fees are also part of this effort.
5.2 EVALUATION OF FEDERAL GUIDELINES AND PERMITTING
The Engineer will review the federal guidelines and permits associated with federally funded
projects and assist the City with preparing documents required.
City of Round Rock
Contract for Engineering Services
TASK 6. PS&E STORM DRAIN
6.1 GENERAL, TRAFFIC, & EROSION CONTROL
RRW Area 5 Water, Wastewater,
and Storm Drain Improvements
Develop Qty Summary, Project Layout, Traffic and Erosion Control Layouts, TCP Typicals, and
update Traffic Control Narrative to include the additional water line on Scenic Loop.
6.2 HYDROLOGY & HYDRAULICS
Additional effort required to address comments for Site I and 2 post 100% submittal. Effort
includes special structural design of 2'x4' box culvert used on Aqualine.
TASK 7. PS&E WATER & WASTEWATER
Proposing approximately 500 LF of new 8-inch water line along Scenic Loop, including service
lines. The Engineer will develop the following plan sheets and perform the following
engineering tasks in accordance with City of Round Rock's guidelines. All PS&E sheets will be
11" x 17". Additional effort included to address comments on Site I and 2 post 100% submittal.
PLAN SHEETS
• Water Plan and Profile Sheets, 40 Scale (I sheet)
• Misc. Detail Sheets (2 sheet)
QA/QC:
The Engineer will perform a QA!QC of all documents prior to milestone review meetings.
Require these reviews:
• Detailed Check Review for all designs
• Construction Plans (90,0')
• Construction Quantities (100%)
• Document & Address City Comments
DELIVERABLES
The following will be provided for water design phase:
• Submittals 905,0, and 100% submittals will be made. Comments and revisions requested
at the review meetings shall be incorporated into the plans for the subsequent submittal.
ASSUMPTIONS
In preparing this proposal, we have made the following assumptions:
• Additional 500 LF of water line from Oak Ridge to Scenic Loop Intersection
0 Adding valves at the new tie-ins and at the abandoning location
City of Round Rock
Contract for Engineering Services
TASK 8. BID PHASE
No additional effort requested.
TASK 9. CONSTRUCTION PHASE
RRW Area 5 Water, Wastewater,
and Storm Drain Improvements
Additional effort required to perform construction phase services for an extension of 6 months
for the work associated with the water line on Scenic Loop. Assuming 18-month total duration.
City of Round Rock
Contract for Engineering Services
RRW Area 5 Water, Wastewater,
and Storm Drain Improvements
ADDENDUM TO EXHIBIT C
Work Schedule
Task
Begin
End
Notice To Proceed
3/07/2022
3/07/2022
Topographical Survey
3/14/2022
4/15/2022
Environmental Studies
4/18/2022
5/13/2022
PS&E
4/18/2022
11/04/2022
30% Submittal
4/18/2022
6/10/2022
30% City Review
6/13/2022
6/24/2022
60% Submittal
6/27/2022
8/19/2022
60% City Review
8/22/2022
9/02/2022
90% Submittal
1/03/2023
2/03/2023
90% City Review
2/06/2023
2/17/2023
100% Submittal*
2/20/2023
1/19/2024
TCEQ WPAP & SCS
1/19/2024
4/19/2024
Bid Phase
4/22/2024
5/24/2024
Construction Phase*
5/27/2024
11/28/2025
*Extended due to additional work associated with supplemental #02.
City of Round Rock RRW Area 5 Water, Wastewater,
Contract for Engineering Services and Storm Drain Improvements
ADDENDUM TO EXHIBIT D
Fee Schedule
Attached Behind This Page
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