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HomeMy WebLinkAboutContract 45535-A1 (2)AMENDMENT No. 1 to AGREEMENT for ENGINEERING SERVICES for the Police Aviation Division New Facility at Meacham International Airport STATE OF TEXAS COUNTY OF TARRANT CITY SECRETARY CONTRACT NO. �'1 )� )J'" �T I v WHEREAS, The City of Fort Worth and Terracon Consultants, Inc., a Delaware Corporation (Engineer) made and entered into City Secretary Contract No. 45535 (The Contract) which was executed on (M&C Was Not Required) the 23th day of April, 2014; and WHEREAS, further amendment is necessary for additional Engineer's design services for evaluation of pertinent geotechnical conditions and to develop design parameters for the new aviation division facility at Meacham International Airport. NOW THEREFORE, City and Engineer, acting herein by and through their duly authorized representatives, enter into the following agreement which amends the Contract: 1. Article I, SCOPE OF SERVICES of the Agreement is amended for additional geotechnical services and follow up "as -needed" services by $3,200.00 and $625.00 respectively as specified in letter from the Engineer subject: Proposal for Geotechnical Engineering Services -Additional Services FWPD Aviation Administration Building, 310 Gulf Stream Road, Fort Worth, Texas, Terracon Proposal No. P95140346 (Revised) dated May 28, 2014, attached hereto as Attachment "A". 2 Article II, COMPENSATION, of the Agreement is amended for the total Agreement price of $33,787.00 for fees including $625.00 for "as -needed' services. 3. All other provisions of this Contract which are not expressly amended herein shall remain in full force and effect. EXECUTED this the Terracon Consultants, Inc. By: 7" 7' tt) By: Eric ClevesT4nd, PE Senior Associate YtArday of; ,. , 2014, in Fort Worth, Tarrant County, Texas. APPROVED. APPROVA _RECOMM EN DED. By: -ram • Douglas W. yfiersig, PE, Director Transportation & Public Works Dept. APPROV D ASTO - o' M AND LEGALITY: By: asyi ( CLe• Fernando Costa Assistant City Manager RECORDED' By: y� Mary J. Kaye City Secretary M&C o% t (M&C Is Contract Authorization Doug as Black Date: Assistant City Attorney r OFFICIAL RECORD CITY SECRETARY FtWORTH,TX U nt f J lit?' i i'+ 'pure d) 0 �;C�f o `j`l n- o s ,e1iNg°,00000.0°°"---i47- Ati On \ _ no0 r v q ea-,---, .c),or :;, tgf AttrActkbmoi s'Au May 28, 2014 City of Fort Worth Architectural Services 401 W. 13th Street Fort Worth, Texas 76102-4616 Attn: Mr.Alfonso Meza E: alfonso.meza@fortworthtexas.gov Re: Proposal for Geotechnical Engineering Services -Additional Services FWPD Aviation Administration Building 310 Gulfstream Road Fort Worth, Texas Terracon Proposal No. P95140346 (Revised) Dear Mr. Meza: Terracon Consultants, Inc. (Terracon) appreciates the opportunity to submit this proposal to provide geotechnical engineering services for the referenced project. The purpose of this study will be to evaluate the pertinent geotechnical conditions at the site and to develop design parameters that will assist in the design and construction of the planned building. This proposal outlines our understanding of the project, the scope of services, and provides a lump sum fee for our services. PROJECT INFORMATION Site Location and Site Conditions ITEM DESCRIPTION Location 310 Gulfstream Road in Fort Worth, Texas Existing improvements Current ground cover Existing topography Project Description ITEM Planned improvements Finished floor elevations None Grass Relatively flat and level in the area of the proposed building. We understand that several feet of fill has been placed at the site. DESCRIPTION A two-story (2nd floor mezzanine) structure with an approximate footprint of 19,859 square feet. The building will have a structural floor slab. 670.0 feet Terracon Consultants, Inc. 2501 East Loop 820 North Fort Worth, Texas 76118 Registration No. F-3272, P [8171 268 8600 F [8171 268 8602 terracon.com/offices/fort-worth Environmental Facilities Geotechnical Materials Proposal for Geotechnical Enginering Services FWPD Aviation Administration Building Fort Worth, Texas May 28, 2014 Terracon Proposal No. P95140346 (Revised) ITEM Maximum loads Columns: 120 kips Slabs: 150 psf (assumed) Retaining/below grade walls None anticipated DESCRIPTION GEOTECHNICAL SCOPE OF SERVICES rerracon Field Program — Based on the project layout and planned construction, we recommend the following boring program. Borings ITEM DESCRIPTION Two borings are planned for this site. Two borings will be advanced 10 feet into bedrock, up to a maximum depth of about 45 feet in the planned building area. Continuous to 10 feet then at 5 foot intervals with tube samplers in clay and split -barrel samplers in sand. The strength of bedrock, if encountered, will be Soil sampling evaluated in -place byperformance of the Texas Department of Transportation pp p (TxDOT) cone penetration test. Groundwater Water level observations will be made during and upon completion of drilling. Borehole backfilling Boreholes will be backfilled with soil cuttings. Sample disposal Samples will be discarded 30 days following report submittal. Conditions - Items to be provided by the client include the right of entry to conduct the exploration and an awareness and/or location of any private subsurface utilities existing in the area. We will contact TBXAS811, the local "one call" service for location of utilities in public easements. Location of private lines on the property is not part of the Texas811, the local "one call" service, or Terracon scope. Terracon will take reasonable efforts to reduce damage to the property, such as rutting of the ground surface. However, it should also be understood that in the normal course of our work such disturbance could occur. We have not budgeted to restore the site beyond backfilling our boreholes with soil cuttings. If there are any restrictions or special requirements regarding this site or exploration, these should be known prior to commencing field work. • Our fee is based on the site being accessible to our truck -mounted drilling equipment and Terracon providing layout of the borings. Additional costs may result if this is not the case. It does not include services associated with site clearing, wet ground conditions, tree or shrub clearing, or damage of existing landscape. If such conditions are known to exist on the site, Terracon should be notified so that we may adjust our scope of services and fee, if necessary. Responsive I-esourcetul Reliable 2 Proposal for Geotechnical Enginering Services FWPD Aviation Administration Building Fort Worth, Texas May 28, 2014 Terracon Proposal No. P95140346 (Revised) lierracan For safety purposes, the borings will be backfilled immediately after completion. Excess auger cuttings would be disposed of on the site. Because backfill material often settles below the surface after a period of time, we recommend the boreholes be checked periodically and backfilled if necessary. We could provide this service at your request or grout the holes, but this would involve additional cost. Laboratory Testing, - The samples will be tested in our laboratory to determine physical engineering characteristics. Testing will be performed under the direction of a geotechnical engineer and may include visual classification, moisture content, liquid and plastic limits, calibrated hand penetrometer tests. Engineering Analysis and Report - The results of our field and laboratory programs will be used in preparing a geotechnical engineering report for the project. Three bound copies and one PDF copy of the report will be submitted. The report will include the following: Plan of borings, boring logs, groundwater observations, and laboratory test results. Description of soil and rock conditions. Appropriate foundation types, depths, and alternatives. Seismic site class, per Table 1613.5.2 of the 2009 IBC. Schedule - We can begin the field exploration program within about one week after receipt of our signed Agreement for Services. One day will be required to complete the borings, if site and weather conditions permit. We estimate the final geotechnical report can be completed within about two weeks after the soil borings are completed. Preliminary information will be available throughout the project. 1.0 COMPENSATION For the scope of geotechnical services outlined in this proposal that includes drilling borings, laboratory testing and an engineering report, the lump sum fee is $3,200.00. Unless instructed otherwise, the invoice will be sent to your attention at the above address. The fee assumes the borings are accessible to truck -mounted equipment during normal business hours, Monday through Friday. The fee includes locating the borings from existing streets and structures by taping and approximating right angles, and utilizing a hand-held GPS unit. It does not include surveying services. Additional services will be charged in accordance with our current fee schedule. If we are authorized to proceed and the client subsequently postpones or cancels the work, we will invoice the client for the costs of project set up and mobilization incurred prior to notice of cancellation. Responsive Resourceful Reliable 3 Proposal for Geotechnical Enginering Services FWPD Aviation Administration Building Fort Worth, Texas May 28, 2014 Terracon Proposal No. P95140346 (Revised) lierrecon Should it be necessary to expand our services beyond those outlined in this proposal, we will notify you, then send a supplemental proposal stating the additional services and fee. We will not proceed without your authorization. We are available to confer with the design team after submittal of our report and review the geotechnical aspects of the contract documents. Such follow-up services are beyond the scope of this proposal and would be charged at $120.00 per hour for a Project Engineer and $145.00 per hour for a Senior Project engineer, not to exceed a total of $625.00. We will obtain your specific authorization prior to providing any additional services. 4.0 AUTHORIZATION. If there are any questions, please contact us. We welcome the opportunity to discuss any element of the project or this proposal with you. If it meets with your approval please execute one copy of the attached Supplement to Agreement for Services and return it with notice to proceed. We appreciate the opportunity to provide this proposal and look forward to working with you on this project. If you have any questions or comments regarding this proposal or require additional services, please give us a call. Sincerely, Terracon Consultants, Inc. Texas Registration #3272 . ristop'P(er W. Eddy, P.E. Geotechnical Department Manager Attachments: Supplement to Agreement for Services Copy to: Client Cheryl C. Pedraza, P.E. Project Manager Responsive Resourceful Reliable 4