HomeMy WebLinkAboutContract 52791-A1 �JS AMENDMENT NO. 1 TO AGREEMENT
STANDARD AGREFmENT FOR TECHNICAL SERVICES
EXISTING BRENNAN DROP-OFF STATION
BUILDING ADDITION and SITE MODIFICATIONS
STATE OF TEXAS
CITY SECRETARY CONTRACT NO. 5a7ct 1-41
COUNTY OF TARRANT
WHEREAS, The City of Fort Worth and Terracon Consultants, Inc. (Consultant) made
and entered into City Secretary Contract No. 52791 (The Contract) which was
administratively authorized, the 18th day of September, 2019, for geotechnical
engineering services at the existing Brennan Drop-Off Station; and
WHEREAS, further amendment is necessary to reimburse the Consultant as part of the
technical services agreement for additional services for construction materials
observation and testing services.
NOW THEREFORE, City and Consultant, acting herein by and through their duly
authorized representatives, enter into the following agreement which amends the
Contract:
1.
Article I — Scope of Services, Paragraph (2) shall be added to read as follows:
(2) Provide additional technical services for the construction material observation
and testing services. The cost of this additional service is $17,312.00 plus $0.00
in reimbursable expenses. The scope of services is described more fully in
Terracon Consultants, Inc.'s Letter dated November 15, 2019 & revised
November 25, 2019, subject: "Construction Materials Observation and Testing
Services, Brennan Drop-Off Station Building Addition, 2400 Brennan Avenue,
Fort Worth, TX 76106, Terracon Consultants Inc. Proposal No. P95191329
Revision 1".
2.
Article II — Compensation, first paragraph, is amended as follows:
"Consultant shall be compensated in accordance with the Fee Schedule shown
in Attachment "C". Payment shall be considered full compensation for all labor,
materials, supplies, and equipment necessary to complete the services
described in Attachment "C". However the total fee paid by the City shall not
exceed a total of $23,565.00 unless the City and the Consultant mutually agree
upon a fee amount for additional services and amend this Agreement
accordingly." - —
OF O OAL RECORD
CITY SECRETARY
FT WOR'%I, TV
CFW—Std.Technical Services Agreement—Amendment No.1 -Rage-4-eft-
Existing Brennan Drop-Off Station Bldg.Addition&Site Modifications—Terracon Consultants,Inc. November 2019
3.
All other provisions of this Contract which are not expressly amended herein shall
remain in full force and effect.
EXECUTED this the day of Dccc!nnL_, , 2019,
in Fort Worth, Tarrant County, Texas.
Terracon Cons nth, Inc. APPROVED:
By: Z By:
KAB o s Kevin GunrV
I
ice- reside Interim Assistant City Manager
APPROVAL R( OMA',IENDED: RECORDED: €�
.� •• ''f,t a ova
By: AJP Ci ocAa By: S'N
�Q � eve C oke, Director ary J. ids r `'� .•'• �vtc ,_`
r,
Property Management Department City Secretary
APPROVED AS TO FORM AND LEGALITY: M&C Not Required
14 Contract Authorization
By: _
J B. Stro g
Jo
City Attorney
CONTRACT COMPLIANCE MANAGER: By signing I acknowledge that I am the person responsible for
the monitoring and administration of this contract, including ensuring all performance and reporting
requirements.
By:
Brian R. Glass, AIA
Architectural Services Manager
OFFOCAL HECORO
MY SECRETARY
CFW—Std.Technical Services Agreement—Amendment No.1 FT WQPJX2TX
Existing Brennan Drop-Off Station Bldg.Addition&Site Modifications—Terracon Consultants,Inc. November 2019
Irerracon
November 15, 2019—Revised November 25, 2019 ATTACHMENT „C„
Alfonso Meza
City of Fort Worth
401 W. 131h Street
Fort Worth, TX 76102
Telephone: (817) 392-8274
Email: alfonso.meza@fortworthtexas.gov
Re: Construction Materials Observation and Vesting Services
Brennan Drop-Off Station Building Addition
2400 Brennan Avenue, Fort Worth, TX 76106
Terracon Consultants Inc. Proposal No. P95191329 Revision 1
Dear Mr. Meza;
Terracon Consultants, Inc. (Terracon) is pleased to submit this proposal to provide construction
materials testing, observation services, or special inspection services for the above referenced
project as required. We are presenting this proposal to confirm our understanding of the services
to be performed for this project, to obtain written authorization to provide these services, and to
present the estimated fee to provide these services. The following sections outline our
understating of the project and provide a description of the tasks to be performed. We
understand we have been selected to provide these services based solely on our
qualifications.
A) PROJECT INFORMA`YION (Exhibit A)
The project involves the construction of a new office building, renovations to the existing shop
building, and new pavements located at 2400 Brennan Avenue in Fort Worth, Texas. The new
1,200 square foot building will have a monolithic 5" slab with grade beams. The building will be
cast over a removed and recompacted subgrade with 2 feet of select fill placed over it. The
building will have metal stud bearing walls with a metal truss roofing system.The major renovation
to the existing shop building includes a new CMU wall enclosure around the west area of the
building.
We understand all three alternatives have been accepted in addition to the base bid. The new
office building will have a 6-inch concrete sidewalk pavement surrounding it. The north parking
lot and other heavy-duty concrete pavements will be 7-inches of concrete over 6-inches of flexible
base. The equipment yard will be 6-inches of concrete over 6-inches of flexible base. In the north
drive lane, the existing base material will be reworked then paved with 7-inches of concrete.
Terracon Consultants, Inc. 2601 East Loop 820 North Fort Worth,Texas 76118
P [817]268-8600 F 18171268-8602 terracon.com
Proposal for Construction Materials Testing Services
Brennan Drop-Off Station Building Addition f
2400 Brennan Avenue, Fort Worth, TX 76106
November 25, 2019—Revised November 25,2019 Terracon Proposal No. P95191329
Terracon was provided with the following construction documents for preparation of this proposal:
o Civil Drawings by Carrillo Engineering dated 3/30/2018 (Addendum 1 Dated 7/11/2018)
Structural Drawings by R. L. Woods &Associates dated 3/30/2018
® Geotechnical Report by MacTec dated 8/31/2004
® Geotechnical Report by Terracon Consultants, Inc. dated 11/20/2019
13) SCOPE OF SERVICES (Exhibit tB)
Based on our review and understanding of the documents listed above, Terracon proposes the
following scope of services:
Earthwork Observations and Testing:
1. Sample materials to be used as building fills, utility trench backfill, wall backfill,
general fill, pavement base and pavement subgrades. Prepare and test the
samples for Atterberg !_imitc (ASTM D4?18), Minus #204 Sieve (ASTM D1140),
Sieve Analysis of Base (ASTM C136) and moisture-density relationship (ASTM
D698).
2. Observe proofrolling operations of the building pad and paving subgrades; and
perform density tests of the building fills, utility trench backfill, wall backfill, general
fill, and pavement subgrades using the nuclear method (ASTM D6938) to
determine the moisture content and percent compaction of the soil materials.
Cast-in-Place Concrete Observations and Testing:
1. Sample and test the fresh concrete for each mix. Perform tests for slump, air
content, ambient and concrete temperatures, and unit weight; and cast test
specimens (ASTM C172, C31, C143, C231, C1064, C138). Terracon
understands that the contractor will be responsible for maintaining the initial
field curing temperature of the concrete test specimens.
2. We have assumed the concrete will be sampled at a frequency of one set of five
test cylinders every 100 cubic yards or fraction thereof per mix per day for all
structural concrete. Terracon requests that a copy of the approved mix
designs) be provided to us prior to placement of the concrete.
3. Perform compressive strength tests of concrete test cylinders cast in the field
(ASTM C31, C39). Five 4" x 8" concrete cylinders will be prepared for structural
concrete having nominal maximum size aggregate of 1 inch or less. One cylinder
will be tested at 7 days, three cylinders will be tested at 28 days, and one cylinder
will be tested at 56 days or at an age requested by others. Four 6"x 12" concrete
cylinders per set will be prepared for concrete having a nominal maximum size
aggregate of greater than 1 inch. When 6" x 12" cylinders are prepared, one
cylinder will be tested at 7 days, two cylinders will be tested at 28 days and one
Responsive Resourceful Reliable P a g e (2
Proposal for Construction Materials Testing Services Irerracon
Brennan Drop-Off Station Building Addition
2400 Brennan Avenue, Fort Worth,TX 76106
November 25,2019—Revised November 25, 2019 Terracon Proposal No.P95191329
cylinder will be tested at 56 days or at an age requested by other
Reinforcing Steel Observation and Testing:
1. Verify the size, number and placement of reinforcing steel prior to placement of
concrete, per construction drawings.
2. Terracon recommends scheduling a minimum of 24 hours prior to concrete
placement.
Masonry Observations and Testing:
1. Provide a qualified technician for periodic field observation during load-bearing
CMU wall construction.
2. Sample mortar for compressive strength testing. (6 mortar cubes 2"x2"x2"per 5,000
SF wall area)
3. Sample grout for compressive strength testing. (4 grout prisms 3"x3"x6" per 5,000
SF wall area)
Project Management/Administration:
A project manager will be assigned to the project to review the daily activity and
assist in scheduling the work. Field and laboratory tests will be reviewed prior to
submittal. The project manager will be responsible for maintaining the project
budget and will oversee the preparation of the final report.
Special Inspections Letter:
Upon completion of our services, a special inspection letter will be prepared, if
requested. The letter will list services Terracon performed and if our results and/or
observation were in compliance.
C) REPORTING
Results of field tests will be submitted verbally to available personnel at the site. Written reports
of field tests and observations will be distributed within five business days. Test reports will be
distributed via electronic distribution unless otherwise requested. Please provide Terracon with a
report distribution list prior to the beginning of the project. The list should include the company
name, address, contact person name, phone number, and e-mail address for each person.
Our reported test locations will typically be estimated by pacing distances and approximating
angles and elevations from local control data(staking and layout lines)provided by others on site.
The accuracy of our locations will be dependent on the accuracy,availability and frequency of the
control points provided by the client and/or contractor.
Responsive Resourceful Reliable Page 13
Proposal for Construction Materials Testing Services lrerracon
Brennan Drop-Off Station Building Addition
2400 Brennan Avenue, Fort Worth,TX 76106
November 25,2019—Revised November 25,2019 Terracon Proposal No. P95191329
D) SCHEDULING
Field testing services will be provided on an "as requested" basis when scheduled by your
representative. A minimum of 24-hour notice is required to properly schedule our services. To
schedule our services please contact our dispatcher at(817)591-4907. The dispatch office hours
are from 7:00 a.m. to 5:00 p.m. Messages left after business hours will be checked the following
business day.
Terracon shall not be held responsible for tests not performed as a result of a failure to
schedule our services or any subsequent damage caused as a result of a lack of testing.
1 erracon recommends that a copy of this proposal be provided to the general contractor
so they understand our scope of services and schedule us accordingly. Please note that
the number of tests and trips described in the Scope of Services does not constitute a
minimum or maximum number of tests or trips that may be required for this project.
Scheduling Retests:
It is the responsibility of your representative to schedule retests in a like manner to
scheduling our original services. Terracon shall not be held responsible for retests not
performed as a result of a failure to schedule our services or any subsequent damage
caused as a result of a lack of retesting.
If you would like us to perform additional work, please contact us and we will issue a short
Supplement to Agreement form,or Supplemental Proposal,that outlines the additional work to be
performed and associated fees. To authorize us to begin additional work, you simply return a
signed copy of the Supplemental agreement.
E) COMPENSATION
Based on the project information available for our review, we propose an estimated cost of
$17,312.00. Services provided will be based on the unit rates included in the attached Budget
Estimate. Please note that this is only a budget estimate and not a not-to-exceed price. Many
factors beyond our control, such as weather and the contractor's schedule, will dictate the final
fee for our services.
Services provided will be based on the unit rates included in the attached Budget Estimate.
Please note that this is only a budget estimate and not a not-to-exceed price. Many factors
beyond our control, such as weather and the contractor's schedule, will dictate the final fee for
our services.
Responsive Resourceful Reliable P age 14
Proposal for Construction Materials Testing Services Irerracon
Brennan Drop-Off Station Building Addition
2400 Brennan Avenue, Fort Worth,TX 76106
November 25, 2019—Revised November 25,2019 Terracon Proposal No. P95191329
For services provided on an "as requested" basis, overtime is defined as all hours in excess of
eight hours per day or outside of the normal hours of 7:00 a.m. to 5:00 p.m. Monday through
Friday, and all hours worked on weekends and holidays. Overtime rates will be 1.5 times the
hourly rate quoted. A two hour minimum charge is applicable to all trips made portal to
portal (our laboratory) to provide our testing, observation and consulting services. A
minimum charge is not applicable for trips to the project site for sample pickup only. All
labor, equipment and transportation charges are billed on a portal to portal basis from our
office.
You will be invoiced on a monthly basis for services actually performed and/or as authorized or
requested by you or your designated representative. Terracon's total invoice fee is due within
thirty days following final receipt of invoice. Quantities and costs associated with re-tests,
cancellations and stand-by time are not included in our estimated fee.
F) SITE ACCESS AND SAFETY
Client shall secure all necessary site related approvals, permits, licenses, and consents
necessary to commence and complete the services and will execute any necessary site access
agreement. Terracon will be responsible for supervision and site safety measures for its own
employees, but shall not be responsible for the supervision or health and safety precautions for
any third parties, including Client's contractors, subcontractors, or other parties present at the
site.
G) TESTING AND OBSERVATION
Client understands that testing and observation are discrete sampling procedures, and that such
procedures indicate conditions only at the depths, locations, and times the procedures were
performed. Terracon will provide test results and opinions based on tests and field observations
only for the work tested. Client understands that testing and observation are not continuous or
exhaustive, and are conducted to reduce— not eliminate- project risk. Client agrees to the level
or amount of testing performed and the associated risk. Client is responsible (even if delegated
to contractor) for notifying and scheduling Terracon so Terracon can perform these services.
Terracon shall not be responsible for the quality and completeness of Client's contractor's work
or their adherence to the project documents, and Terracon's performance of testing and
observation services shall not relieve contractor in any way from its responsibility for defects
discovered in its work,or create a warranty or guarantee. Terracon will not supervise or direct the
work performed by contractor or its subcontractors and is not responsible for their means and
methods.
Responsive Resourceful Reliable P age 15
Proposal for Construction Materials Testing Services Irerracon
Brennan Drop-Off Station Building Addition
2400 Brennan Avenue, Fort Worth,TX 76106
November 25,2019-Revised November 25, 2019 Terracon Proposal No. P95191329
H) AU "ORIZKrION
This proposal may be accepted by executing the attached Agreement for Services and returning
an executed copy along with this proposal to Terracon. This proposal for services and
accompanying limitations shall constitute the exclusive terms, conditions and services to be
performed for this project. This proposal is valid only if authorized within sixty days from the listed
proposal date.
We appreciate this opportunity of working with you and we look forward to working with you in the
future.
Sincerely,
Terracon Consultants, Inc.
(Texas Registration No. F-3272)
aj'c&t'e� � ,� �..
Andrew Cloeter, E.I.T. William V. Jaco s, P.E.
Project Manager Senior Project Materials Engineer
Attachments:
(1) Budget Estimate
(2) Agreement for Services
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Proposal for Construction Materials Testing Services Ireirracon
Brennan Drop-Off Station Building Addition
2400 Brennan Avenue, Fort Worth, TX 76106
November 25,2019-Revised November 25, 2019 Terracon Proposal No. P95191329
"UDOFT FSTIM.AT1 (Exhibit(;)
Service Quantity Unit Unit Rate Estimate
BUILDING
Earthwork Observation and Testing
Soils Technician,(min.2 hours) 32 hour $50.00 $1,600.00
Soils Technician,(Overtime) 6 hour $75.00 $450.00
Moisture Density Relationship(ASTM D-698) 2 each $175.00 $350.00
Minus No.200 Sieve Analysis(ASTM D-1140) 2 each $25.00 $50.00
Atterberg Limits(ASTM D-4318) 2 each $60.00 $120.00
Additional Charge for Coarse Aggregate Correction(ASTM D-1718) 1 each $25.00 $25.00
Nuclear Density Gauge 4 trip $50.00 $200.00
Vehicle Charge 6 trip $40.00 $240.00
Sub-total $3,035.00
Assumptions-2 trips for proctor pick ups,4 trips for subgrade preparation
Concrete&Reinforcing Steel Observation and Testina
Concrete Technician,(min.2 hours) 6 hour $42.00 $252.00
Concrete Technician,(Overtime) 2 hour $63.00 $126.00
Compressive Strength Tests(ASTM C-39 4"x8") 5 each $15.00 $75.00
Concrete Cylinder Pick-Up 2 hour $42.00 $84.00
Vehicle Charge 2 trip $40.00 __$80.00
Sub-total $617.00
Assumptions-1 trip for the building concrete pour
Masonry
Masonry Technician,(min.2 hours) 16 hour $65.00 $1,040.00
Compressive Strength of Grout Prisms(ASTM C-1019) 8 each $35.00 $280.00
Compressive Strength of Mortar Cubes(ASTM C-109) 12 each $18.00 $216.00
Masonry Sample Pick-Up 6 hour $42.00 $252.00
Vehicle Charge 8 trip $40.00 $320.00
Sub-total $2,108.00
Assumptions-2 trips each for mortar and grout
SIT EWOR6t - -
Farthwork Observation and Testing
Soils Technician,(min.2 hours) 30 hour $50.00 $1,500.00
Soils Technician,(Overtime) 8 hour $75.00 $600.06
Moisture Density Relationship(ASTM D-698) 3 each $175.00 $525.00
Minus No.200 Sieve Analysis(ASTM D-1140) 3 each $25.00 $75.00
Atterberg Limits(ASTM D-4318) 3 each $60.00 $180.00
Sieve Analysis, Dry(ASTM C136) 1 each $75.00 $75.00
Additional Charge for Coarse Aggregate Correction(ASTM D-1718) 3 each $25.00 $75.00
Nuclear Density Gauge 9 trip $50.00 $450.00
Vehicle Charge 10 trip $40.00 $400.00
Sub-total $3,880.00
Assumptions-1 trip for proctor pick ups,9 trips for field density testing
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Proposal for Construction Materials Testing Services 1rerracan
Brennan Drop-Off Station Building Addition
2400 Brennan Avenue, Fort Worth,TX 76106
November 25,2019—Revised November 25,2019 Terracon Proposal No. P95191329
Concrete R Reinforcing Observation and'testing
Concrete Technician,(min.2 hours) 45 hour $42.00 $1,890.00
Concrete Technician,(Overtime) 10 hour $63.00 $630.00
Reinforcing Steel Technician,(min.2 hours) 6 hour $42.00 $252.00
Compressive Strength Tests(ASTM C-39 4"x8") 60 each $15.00 $900.00
Concrete Cylinder Pick-Up 20 hour $42.00 $840.00
Vehicle Charge 20 trip $40.00 $800.00
Sub-total $5,312.00
Assumptions-10 trips for all concrete pours
ADMINIS T RATION
Project Manager 14 hour $120.00 $1,680.00
Senior Project Manager 1 hour $135.00 $135.00
Clerical 7 hour $55.00 $385.00
Project Engineer 1 hour $160.00 $160.00
Sub-total $2,360.00
_ Estimated Project Tot2l 0:-
Responsive Resourceful Reliable P age 18