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Home My WebLink AboutC2019-224 - 4/25/2019 - NA • TASK ORDER NO. 24 This Task Order pertains to a Master Services Agreement for Geotechnical and Construction Materials Testing by and between City of Corpus Christi, Texas (City) and Tolunay-Wong Engineers, Inc., (Lab) dated January 16, 2018 by Motion No. M2018-005 (Agreement). Lab shall perform services on the project described below as provided in this Task Order and in the Agreement. This Task Order shall not be binding until it has been properly signed by both parties. Upon execution, this Task Order shall supplement the Agreement as it pertains to the project described below. MSA PROJECT NUMBER/NAME: 17101A Geotechnical and Construction Materials Testing TASK ORDER PROJECT NUMBER/NAME: 17101Y Geotechnical and Construction Materials Testing 1. PROJECT DESCRIPTION: 18015A Everhart Road (SPID to McArdle Rd) 2. SCOPE OF SERVICES—GeoTech and/or Construction Material Services to observe,test and report for the Everhart Road (SPID to McArdle Rd) project, and as more fully described in Exhibit A. 3. COMPENSATION —The total amount not to exceed for this Task Order only is $15,760.00. This Task Order is approved, and Lab may proceed. All other terms and conditions of the Agreement remain in full force and effect. CITY OF CORPUS C RI TI TOLUNAY-WONG ENGINEERS, INC. ZS 1Z 12—L.4 4/2301 Jeff H. dmonds. '.E. D. e Don R. Rokohl, P. E. Da e Director of Engineering Services Branch Manager 826 South Padre Island Drive Corpus Christi, TX 78416 (361)884-5050 Office drokohl@tweinc.com Project Number: 18015A Accounting Unit: 3250-051 Account: 550920 Activity: 18014-A-3250-EXP Account Category: 50920 Fund Name: ST2019 Bd18 P2 Amount: $15,760.00 Task Order No. 24 C2019-224 Testing Agreement 4/25/19 Page 1 of 2 Tolunay-Wong Engineers Inc. r1ANIJFfl TASK ORDER FUNDING REQUEST FORM CONTRACT MSA#AND TITLE: 17101A Geotechnical and Construction Materials Testing(TWE) TASK ORDER PROJECT#/TITLE: 17101Y Geotechnical and Construction Materials Testing(TWE) REQUESTING DEPARTMENT: Engineering Services FUND NAME/FUND#-ME: ACCOUNT: ACTIVITY: 3250-051 550920 18014-A-3250-EXP CONSULTANT:TOLUNAY-WONG ENGINEERING, INC. TASK ORDER#: 24 SCOPE OF WORK: SEE PROPOSAL TASK ORDER IS FOR PROJECT(S)LISTED BELOW: PROJECT# FEE PROJECT NAME 18015A $15,760.00 Everhard Rd(SPID to McArdle Rd) S15,760.00 Grand Total MARISA ALANIZ PM PRINT NAME: 0:111,If ,ipA • DA . Task Order No. 24 Testing Agreement Page 2 of 2 Tolunav-Wong Engineers, Inc. 826 South Padre Island Drive • Corpus Christi,Texas 78416 • Phone (361)884-5050 April 8,2019 City of Corpus Christi P. O. Box 9277 Corpus Christi,Texas 78469-9277 Attn: Ms. Marisa Alaniz, E.I.T. Mari saAl@cctexas.com Ref: Proposal for Geotechnical Engineering Services Everhart Road—SPID to McArdle Road Corpus Christi, Texas Task Order#24— 17101Y TWE Proposal No.: P19-C048R1 Dear Ms.Alaniz, Tolunay-Wong Engineers, Inc. (TWE) is pleased to submit this proposal to provide geotechnical engineering services for the referenced project. This proposal presents a general description of the project, our proposed scope of services to be provided and the estimated cost for completion of our services associated with the project. Project Overview We understand that the project will involve rehabilitation or reconstruction of a segment of Everhart Road in Corpus Christi, Texas with either a flexible (asphalt) or rigid (concrete) pavement sections(s) as well as possible replacement of underground utilities as needed. Everhart Road from South Padre Island Drive (SPID)to McArdle Road is about 1260 feet long with an asphalt surface. Visual observations indicate the street is in poor condition with asphalt cracking, patches, and some uneven lanes. We understand that the road receives a mixture of mostly commercial and residential vehicular traffic and that the results of a traffic count of all vehicles on this segment of Everhart Road will be provided in the future. New traffic signal foundations will be included as part of the project. Scope of Services We will provide the personnel, equipment and materials necessary to complete the requirements of our scope of services. Our scope of services can be categorized into three major areas: field program, laboratory testing and engineering analysis/report preparation. The purpose of our geotechnical engineering services will be to provide the geotechnical information needed to assist the Client in the design and construction of the rehabilitated or reconstructed roadway cross section(s)and signal foundations. Houston • Dallas • Corpus Christi • La Porte • Beaumont • Lake Charles • Baton Rouge • New Orleans Exhibit A Page 1 of 5 Page 1 of 5 Op Folunay-N ons April 8,2019 Engineers, Inc. TWE Proposal No.P19-0048R1 Field Program The subsurface conditions along this segment of Everhart Road will be explored by performing a total of six (6) test borings, spaced about 250 feet apart, as requested. The proposed exploratory depths are two (2) test borings to depths of 25-ft and four (4) test borings to depths of 5-ft below existing grade. It is planned that the borings will be drilled with truck mounted drilling equipment. Traffic control will be provided by Highway Barricades and Services, LLC (HBS). We anticipate that the traffic control devices used will consist of a two (2) man crew with truck-mounted attenuators, arrow boards, signage and channelizing devices. A traffic control plan will be submitted by HBS on behalf of TWE to the City Traffic Engineering department for their approval so that the necessary permit can be obtained. The test boring locations will be identified by TWE and surveyed using a hand-held global positioning system(GPS) device. This proposal does not include pricing for professional surveying services to provide precise coordinates and elevations of the test boring locations. If necessary, pricing for these services can be provided upon request by the Client. Once the test boring locations are identified within the project site, we will notify the Texas 811 One Call System prior to the commencement of our field program for clearance of subsurface utilities and/or pipelines within the project site. Our field personnel will have the appropriate safety training and will be equipped with the appropriate personal protective equipment for work on an active City street. Our geotechnical services will be under the direction of a Professional Engineer experienced in geotechnical engineering. Our test borings will be logged by an experienced geotechnician. We will dry-auger the test borings until groundwater is observed or until borehole conditions require the use of wash-rotary drilling methods. When groundwater is encountered,the level will be allowed to stabilize for about ten(10)minutes to fifteen(15)minutes prior to completing the test borings. Geotechnical drilling and sampling will be performed in accordance with ASTM International standards. Samples will be obtained continuously to a depth of 12-ft, at the 13-ft to 15-ft depth and at 5-ft depth intervals thereafter until the boring completion depth is reached. The existing pavement section(s) will be penetrated by dry augering and the thickness of the existing pavement section component(s)will be carefully measured and recorded by the geotechnician. Fine-grained, cohesive soils will be sampled using pushed, thin-walled Shelby tubes with an inside diameter of 2.87-in. Our geotechnician will conduct field strength measurements using a pocket penetrometer or hand torvane device on each cohesive soil sample recovered. The samples will be wrapped in foil, placed in labeled moisture sealed plastic bags, and placed in core boxes to minimize disturbance prior to transport to our laboratory. Where coarse-grained, cohesionless and semi-cohesionless soils are encountered, sampling will be performed using standard penetration test (SPT) methods. Our geotechnician will monitor the driving resistance and record blow counts while performing the SPTs. The disturbed samples from the SPT sampling will be placed in labeled moisture sealed plastic bags and delivered to our laboratory. Houston • Dallas • Corpus Christi • La Porte • Beaumont • Lake Charles • Baton Rouge • New Orleans Exhibit A Page 2 of 5 Page 2 of 5 10 Tolunay-Wong Al 8,2019Engineers,Inc. TWE Proposal No.P19-C04SRI The boreholes will be backfilled with soil cuttings and, as needed, imported backfill materials upon completion of drilling and sampling. The surface of the boreholes will be repaired with an asphalt cold patch or freshly mixed bagged concrete,whichever is appropriate. Laboratory Testing Selected samples from the test borings will be used for laboratory testing. Our laboratory testing program will include properties such as moisture content, unit weight, unconfined compressive strength, unconsolidated-undrained triaxial compressive strength, Atterberg Limits and grain size distribution including percent passing No. 200 sieve. Engineering Analysis/Report Preparation Engineering analysis will be conducted utilizing the information collected during our field program and laboratory testing services. We will provide geotechnical design and construction recommendations for the proposed roadway rehabilitation or reconstruction. We will present the results and findings of our geotechnical services in a fmal written report. Electronic and hard copies of our final report will be issued to the Client as requested. Our final report will include the following: a. Discussion and conclusions of findings including: • Summary of field and laboratory tasks; • Existing project site conditions; • Subsurface soil and groundwater conditions; • Boring logs presenting tabulated field and laboratory test results; b. Geotechnical design recommendations for the proposed roadway rehabilitation or full reconstruction in accordance with the AASHTO Guide for Design and Pavement Structures including suitable flexible and rigid pavement sections for a 30-year service period, suitability of recycling the existing pavement section for incorporation into the new pavement section, layer material types, layer material thicknesses and subgrade support characteristics. Several thickness combinations of each pavement component will be considered as well as options for either lime stabilization or the use of geogrid as a substitute for lime stabilization. A locally available crushed concrete will be considered as a substitute for crushed limestone as flexible base material; c. Geotechnical design recommendations for proposed signal pole foundations including drilled shaft foundation type, diameter and embedment length based on results of the test borings; d. Geotechnical design recommendations for the proposed underground utility installations including OSHA soil classifications and soil design parameters for trench excavation and braced excavation design;and, e. Geotechnical construction considerations including site and subgrade preparation, in-place soil stabilization, fill and backfill placement, compaction requirements, foundation installation and overall quality control inspection,monitoring and testing guidelines. Houston • Dallas • Corpus Christi • La Porte • Beaumont • Lake Charles • Baton Rouge • New Orleans Exhibit A Page 3 of 5 Page 3 of 5 • Tolunay-Wong April 8,2019 Engineers, Inc. TWE Proposal No.P19-C048R1 Schedule Upon notice to proceed, our field program can typically commence within about five (5) working days depending on our current field schedule, site access, weather contingencies and location of subsurface utility and/or pipelines within the project alignment. We anticipate our field program will take two (2) working days to complete with laboratory testing beginning as soil samples are returned to the laboratory. We anticipate that laboratory testing will be completed within two (2) weeks once assignments are submitted. Preparation of our final report will require two (2) weeks after all laboratory testing is completed. We anticipate an overall project duration of five (5) to six (6) weeks from notice to proceed to completion of our final report. During this time, we will communicate with the Client and provide preliminary geotechnical information as needed to avoid delays in the overall project schedule. Estimated Cost The estimated cost associated with our geotechnical services for this project is lump sum of $15,760. A detailed summary of the estimated cost is presented below. Every reasonable effort will be made to stay within this proposed budget. Should unforeseen conditions or situations occur that are beyond the control of TWE, we will not exceed this lump sum amount without prior approval from the Client. Description Unit Quantity Rate Extension Field Program 1 Traffic Control Services (HBS) day 1 $1,100.00 $1,100.00 Mobilization/Demobilization of 2 lump sum 1 $500.00 $500.00 Geotechnical Equipment/Personnel 3 Geotechnical Drilling/Sampling, 0'-25' day 1 $2,000.00 $2,000.00 4 Backfill/Patching of Boring Locations foot 70 $4.00 $280.00 5 Geotechnician hour 15 $75.00 $1,125.00 6 Support Vehicle trip 2 $75.00 $150.00 7 Standby Time (Outside of TWE hour - $250.00 - Control) Laboratory Testing 8 Moisture Content/Visual Classification each 15 $15.00 $225.00 9 Plastic and Liquid Limits, 1-Point each 6 $50.00 $300.00 Method 10 Percent Finer Than No. 200 Sieve each 15 $50.00 $750.00 11 Sieve Analysis each 2 $60.00 $120.00 12 Unconfined Compression Strength each 5 $40.00 $200.00 13 U-U Triaxial Compression Strength each 6 $60.00 $360.00 Engineering Analysis/Report Preparation Houston • Dallas • Corpus Christi • La Porte • Beaumont • Lake Charles • Baton Rouge • New Orleans Exhibit A Page 4 of 5 Page 4 of 5 • • 110 Tolunay-Wong April 8,2019 Engineers, Inc. TWE Proposal No.P19-C048R1 14 Consultant hour 10 $185.00 $1,850.00 15 Project Manager- Geotechnical hour 40 $150.00 $6,000.00 16 Computer Aided Draftsman hour 8 $75.00 $600.00 16 Administrative Assistant hour 4 $50.00 $200.00 Total Cost Estimate $15,760.00 Closing We understand that the City will issue a Project Task Order upon acceptance of this proposal in accordance with the Master Service Agreement (Project No. El 7101A) between the City of Corpus Christi and Tolunay-Wong Engineers, Inc. and the Task order will serve as our authorization to proceed with our services for the project. If you have any questions regarding this proposal, please contact us at (361) 884-5050. We appreciate your consideration of TWE for this project and look forward to working with you. Sincerely, TOLUNAY-WONG ENGINEERS, INC. Texas Board of Professional Engineers Firm Registration Number F-000124 ,Z 12)&4 Don R. Rokohl, P.E. Branch Manager DRR/drr Houston • Dallas • Corpus Christi • La Porte • Beaumont • Lake Charles • Baton Rouge • New Orleans Exhibit A Page 5 of 5 Page 5 of 5