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Home My WebLink AboutContract 25836 CITY AMENDMENT No. 2 CON RAC NO Y h STATE OF TEXAS 3 CITY SECRETARY CONTRACT (No M&C Needed) COUNTY OF TARRANT 3 WHEREAS, the City of Fort Worth (City) and Halff Associates Inc. , (Engineer) made and entered into City Secretary Contract No.23049, (the Contract) which was authorized by the City Council by M&C C-16154 on the 8 day of July, 1997; and WHEREAS, the Contract involves engineering services for the following project: Additional Engineering Services to secure a Letter of Final Map Revision (LOMR) for sanitary sewer M-278 Aerila crossing. WHEREAS, it has become necessary to execute Amendment No.2 to said Contract to include an increased scope of work and revised maximum fee; 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 of the Contract is amended to include the additional engineering services specified in a proposal letter dated April 11, 2000, a copy of which is attached hereto and incorporated herein. The cost to City for the additional services to be performed by Engineer total $9, 070. 00 2 . Article II of the Contract is amended to provide for an increase in the maximum fee to be paid to Engineer for all work and services performed under the Contract, as amended, so that the total fee paid by the City for all work and services shall not exceed the sum of $42, 270.00 =z) 4 �v rry s i C_/C W —q Cl City of Fort Worth ' { 10 MAY -1.3 G g.B epartmental Request for Waiver Q � M E/WBE Subcontracting/Supplier Goal c x = &C"Ad-27f3 , �r�r L Cho �s�.R/� o� -4-01338 NAME Off PROJECT/BID: BID/PROJECT NO. A4,� 91V400, SIGNATURE OF BUYER/PROJECT MANAGER EXTENSION DATE Prior to advertisement, the contracting/managing department shall determine whether the bid/proposal is one which MBE/WBE requirements should not be applies. MBE/WBE requirements may be waived upon written approval of the M/WBE Coordinator. If one of the conditions listed below exists,the contracting/managing department shall notify the Coordinator via this form, stating the specific reason(s)for requesting a waiver. If the contracting/managing department and the Coordinator are in conflict over the granting of a waiver, either may appeal to the City Manager, or designee, and his/her decision is final. Please Check Applicable Reason: A . A public or administrative emergency exists which requires the goods or services to be provided with unusual immediacy; or B. Purchase of goods or services from source(s) where subcontracting or supplier opportunities are negligible; or C. The application of the provisions of this ordinance will impose an economic risk on the City or ` unduly delay acquisition of the goods or services; or D. Other (explain) Justify Commodity or Service Waiver Request: a + G ;�.QesA4009�r' fI��Zr2„r..i / L Please use a nal shee ,if needed MX� At FFICE USE ONLY: �aC� Approved "ahem-k& -1hL '&,kSignature of M/WBE Authoriz Person e Not Approved Signature of M/WBE Authorized Perso ries}��: Gi a;� ,^U�� Date 0 Q -Rev.2/24199 Associates 4000 FOSSIL CREEK BOULEVARD FORT WORTH,TEXAS■■■ Half (817)847-1422 METRO(817)429-9975■■■ 76137 FAX(817)232-9784 ENGINEERS • ARCHITECTS • SCIENTISTS PLANNERS • SURVEYORS April 11, 2000 AVO 16301 Fred Ehia, P.E. City of Fort Worth Department of Engineering 1000 Throckmorton Fort Worth, Texas 76102 Re: Amendment No. 2 Design for Replacement of M-278 Aerial Crossing D.O.E. No. 0838 Dear Mr. Ehia: In response to your request for additional modifications to provide engineering services to secure a Letter of Final Map Revision(LOMR) for the above referenced project, Halff Associates is pleased to present this Amendment for the additional services as described on Attachment "A". The Basis of Compensation is outlined on Attachment"B". Following is an updated Project Fee Summary: Contract Item Description Fee Original Contract Notice to Proceed (3/9/98) $20,000 Amendment No. 1 Hydraulic Studies and CLOMR $13,200 Amendment No. 2 LOMR including FEMA Processing $9,070 Fee Total $42,270 Please review the enclosed information and do not hesitate to call me if you have any questions or require additional information regarding this amendment. Sincerely, Her FF ASSOCIATE'S, INC. iF. Roberts, P.E. Vice President Enclosures FORT WORTH DALLAS • HOUSTON • McALLEN a U� .._.•.I U.�L o TRANSPORTATION WATER RESOURCES • LAND DEVELOPMENT • MUNICIPAL • ENVIRONMENTAL STRUCTURAL MECHANICAL • ELECTRICAL SURVEYING • GEOGRAPHIC INFORMATION SYSTEMS ARCHITECTURE LANDSCAPE ARCHITECTURE • PLANNING %m Halff Associates ENGINEERS • ARCHITECTS • SCIENTISTS PLANNERS • SURVEYORS ATTACHMENT "A" - SCOPE OF WORK I. Data Collection A. Visit project site for record photographs and field verification of"as-built" channel and aerial crossing improvements. B. Obtain the effective FEMA HEC-2 hydraulic computer model of Mary's Creek flood plain and floodway conditions. C. Obtain copies of the most recent FEMA flood plain and floodway maps along with corresponding flood profiles. D. Obtain contractor's "as-built" drawings and City's "as-built" survey. II. Field Surveys A. Research available benchmark data established for the M-278A. B. Conduct field surveys of recently constructed improvements to ensure project was constructed as originally designed. Surveys will consist of"spot elevations" of channel flowlines and top of banks and aerial crossing at key locations through the project. III. Hydraulic Analysis A. Utilize the updated Mary's Creek HEC-2 model developed for CLOMR to develop an "as-built" model through the project area using record plans and field surveys. B. Prepare and execute an updated floodway model. This model will include the regulatory FEMA floodway downstream and upstream of the project. C. Plot hydraulic channel cross-sections and flood profiles of the 10-, 50-, 100-, and 500- year flood events. D. Document and prepare tables of results comparing pre-project and "as-built" channel and floodway computed water surface elevations. E. Delineate "as-built" 100-year flood plain and floodway limits using available topographic maps and record construction plans. IV. FEMA Technical Report A. Prepare the appropriate FEMA application/certificate forms. Halff Associates anticipates preparation of the following four (4) FEMA forms: V. Form - Revision Requester and Community Official Form VI. Form 2 - Certification by Registered Professional Engineer VII. Form4 - Riverine Hydraulic Analysis Form VIII. Form 5 - Riverine Mapping Form MEN Halff Associates ENGINEERS • ARCHITECTS • SCIENTISTS PLANNERS • SURVEYORS IX. Form 6 —Channelization Form X. Form 7 —Bridge/Culvert Form (Proposed Aerial Crossing) XI. Prepare brief letter report describing procedures, assumptions, results, and requests for flood plain floodway revisions. Documentation/Coordination A. Meet with the City of Fort Worth, City of Benbrook and other interested parties to discuss details of FEMA LOMR submittal (if needed). B. Submit request for final LOMR to the City of Benbrook for transmittal to FEMA. Halff Associates to pay processing fee to FEMA. C. Answer technical questions from FEMA and Technical Review Contractor. 0 NNE Halff Associates ENGINEERS • ARCHITECTS • SCIENTISTS PLANNERS • SURVEYORS ATTACHMENT "B" —BASIS OF COMPENSATION TASK I. Data Collection $200 IL Field Surveys $1,000 II1. Hydraulic Analysis $1,300 IV. FEMA Technical Report $1,670 V. Documentation/Coordination $1,500 VI. FEMA Processing Fee $3,400 TOTAL FEE $9,070 ry ^n S=OS-2000 7:22AM FROM HALFF ASSOCIATES. INC 817 232 9784 P. 2 I=ON ,WW POM CREEK BOULEVARD Halff Associates F�TMuFto 1-/)Q" m MEN (8t�847_142.2 �o(8,7� FAX(817)232-VU ENG&TE RS - ARCIUTF S - sCDRgTIM PLANNERS - SURVEYORS May 4,2000 AVO I6301 W. Fred Ehia,P.E. PmjectManager/Consultant Services Department of Engineering City of Fort Worth 1000 Tbrockmorton Street Fort Worth,Texas 76102 RE: M-278A Aerial Crossing Dear Mr.Ehia: The total fee for Amendment No 2 is $9,070. Of that total, $3,400 is the application fee that must be paid to.FEMA. for processing a request for floodplain map revision. The $5,670 remainder of the fee involves hydraulic modeling, preparation of a report and application to FEMA, coordination with the cities of Fort Worth and Benbrook, and technical interaction with FEMA staff during review_ Thus project is essentially a "ane person" project. Subcontracting portions of the work is not practical or desirable from the standpoint of management and accountability Please call if you have any questions or comments. Sincerely, HALFF ASSOCIATES,INC. Jerry F.Roberts,P.E. Vice President IElY, FORT WORM - DALLAS-HOUSTON-MW1EN -__-- TRANSPORTATION - WATER RESOURCES - LAND DEVELOPMENT - MUNICIPAL - ENVIRONMENTAL • STRUCTURAL MECHANICAL - ELECTRICAL- SURVEYING -CE^wRAPW,MORMAi:ON SYSTEMS ARrHTFMI IAP r I ANnAr.APF ARrJIITFrnIRF •PI ONNINA FOP,TWOP,TH TO: A.Douglas Rademaker, P.E. FROM: Fred Ehia, P.E. DATE: April 25,2000 RE: Sanitary Sewer Main-278 Aerial Crossing, DOE#0838 As requested by the Water Department,Halff Associates,Inc. has submitted a proposal to provide additional services to secure a Letter of Map Revision(LOMB)for the above referenced project. Halff Associates,Inc. has requested to perform these additional services for a fee not to exceed $9,070.00 increasing the contract fee to $42,270.00 Staff considers this fee to be fair and reasonable for the scope of services proposed. Please authorize this additional design by your signature on the attached Contract Amendment form. Xc: Rick Trice Wg CcRD ENGINEERING DEPARTMENT THE CITY OF FORT WORTH * 1000 THROCKMORTON STREET * FORT WORTH, TEXAS 76102-6311 (817) 871-7941 * FAx (817) 871-7854 ev Printed on recycled paper