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Home My WebLink AboutContract 37792AMENDMENT N0.2 STATE OF TEXAS § CITY SECRETARY CONTRACT NO, JAH'(D, No fM&C Needed) COUNTY OF TARRANT § WHEREAS, the City of Fort Worth (City) and Chiang, Patel & Yerby, Inc., (Engineer) made and entered into City Secretary Contract No. 27951 (the Contract) which was authorized by the City Council by M&C C-19197 on the 20th day of August, 2002; and WHEREAS, the Contract involves engineering services for the following project: Engineering Contract for Holly Pressure Plane Water Transmission Main Improvement. 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 August J. 2008, a copy of which is attached hereto and incorporated herein. The cost to City for the additional services to be performed by Engineer total $24,266.00 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 $593,547.69. 3. All other provisions of the contract, which are not expressly amended herein, shall remain in full force and effect. ORIGINAL EXECUTED on this the J k` day of U d , 2008_, Fort Worth, Tarrant County, Texas, APPROVAL RECOMMENDED: Michael F. Graves, P.E. Chiang, Patel & Yerby, INC. ENGINEER B y: Name: Assistant City Attorney APPROVED: Fernando Costa I Assistant City Manager ALITY: ATTEST: y Hendrix, City Secretary in CF& J Partners for a Better Quality of Life August 5, 2008 Mr. Gopal Sahu City of Fort Worth Engineering Department 1000 Throckmorton Fort Worth, Texas 76102 RE: City of Fort Worth Holly Pressure Plane Water Transmission Main, Contract No. 27951 Additional Design Services CP&Y Project No. CFW08043 Dear Mr. Sahu: The purpose of this letter is to request a Change Order for additional services related to the i ppeline design. We respectfully submit the following items for your consideration. Additional Subsurface Utility Engineering (SUE) The previous contract for this project only included Quality Level (QL)"B" SUE services. QL"B" services provide two-dimensional information (x,y) of underground utilities. Now that the preferred pipeline alignment has been determined, additional information, specifically the depth of the utilities, needs to be ascertained. Therefore, CP&Y recommends that a Quality Level "A" SUE be performed at approximately 11 locations identified along this preferred alignment. A QL °A" SUE provides three-dimensional (x,y,z) information for the concerned utilities. Due to the possibility that the alignment may still change slightly, CP&Y has requested Gorrondona & Associates, Inc. (GAI) to provide us with a proposal for services on a "Unit Rate" basis with a total of 14 locations. The fee for these services is $13,660. Additional Surveying Due to preferences by the City of Lake Worth, the alignment of the waterline through the city park will not parallel the TxDOT right-of-way along Loop 820 as originally anticipated. Instead, the preferred alignment will cross sections of the park between the baseball fields and a parking lot. This new alignment is outside of the scope of work performed in the original survey and the area will need to be surveyed in order to complete an accurate design. Therefore, CP&Y has requested additional land surveying services from GAI to incorporate the limits of the new alignment. The fee for these services is not to exceed $8,400. Project Schedule Once CP&Y is given approval by the City of Fort Worth, we will give Notice to Proceed to GAI. It will take approximately 3 weeks for GAI to complete the work and provide the data to CP&Y. C �PWWakinglknei111d0117729�Gopal-Amendment Letter 2008-0&04 dodKN Chiang, Patel & Yerby, Inc. 15100 Trinity Blvd., Suite 200 Fort Worth, Texas 76155 817.354.0189.817.540,4220 metro • 817.354.4935 fax www.cpyi.com Mr. Gopal Sahu August 5, 2008 Page 2 Compensation Additional SUE Additional Surveying Subtotal: (10% fee for subconsultant) Total: $13,660 $ 8,400 $22,060 $ 2,206 $240266 iAie appreciate your review of our request. As always, we are available at your convenience to discuss your comments and respond to your questions. Sincerely, 44XIM WOO* �ICE Michael F. Graves, PE Senior Associate MFG/kn Attachments: Gorrondona &Associates, Inc. Proposal for Subsurface Utility Engineering Gorrondona & Associates, Inc. Proposal for Additional Surveying Services ®F�ftdlA'Is ��RD CITY SECRETARY C:\PVNA/artanplkneill1d01177291Gopel-Amendment Letter 2008-08-04 doetKN � �� Partners for a Better Quality of life orron.ayna a8: Asw3oc9oltes, ncre __. nvd `&V �''e14iq * SL1�J$lEt a.ce• �.!flifi•;v` Engineering` U If Coo(dhall-Oi I July 259 2008 Mr. Thomas Cochill, P.E. CPY, Inc. 1700 Red Bud Blvd. Ste. 460 McKinney, TX 75069 RE: Subsurface Utility Engineering Quality Level "A" (Test Holes) Fort Worth - NW Water Transmission Main Dear Mr. Cochill: Gorrondona and Associates, Inc. (GA}, is pleased to submit a cost proposal for Subsurface Utility Engineering (SUE) required for the above referenced project. Introduction GA will perform the SUE work required for this project in general accordance with the recommended practices and procedures described in ASCE Publication CUASCE 38-02 (Standard Guideline for the Collection and Depiction of Existing Subsurface Utility Data). As described in the mentioned ASCE publication, four levels have been established to describe the quality of utility location and attribute information used on plans. The four quality levels are as follows: • Quality Level D (QL"D") —Information derived from existing records; • Quality Level C (QL"C") - QL"D" information supplemented with information obtained by surveying visible above -ground utility features such as valves, hydrants, meters, manhole covers, etc. • Quality Level B (QL"B") — Two-dimensional (x,y) information obtained through the application and interpretation of non-destructive surface geophysical methods. Also known as "designating" this quality level provides the approximate horizontal position of subsurface utilities within approximately one foot. • Quality Level A (QL"A") — Also known as "locating", this quality level provides precise three dimensional (x,y,z) information at critical locations by exposing specific utilities. Non- destructive vacuum excavation equipment is used to expose the utilities at specific points which are then tied down by survey. It is the responsibility of the SUE provider to perform due -diligence with regard to records research (QL "D") and acquisition of available utility records. The due -diligence provided for this project will consist of reviewing the "As -Built" documents previously compiled by others. Utilities that are not identified through these efforts will be here forth referred to as "unknown" utilities. GA personnel will scan the defined work area using electronic prospecting equipment to search for "unknown" utilities. However, GA is not responsible for designating and locating these "unknown" utilities. 6%�% �'iP8YllWtiOd JiF.,I� �Ga�1 '� `�i4fl � Jis `= I`:iSi � ii�3Yi �� i C-`n�u � �� c � i3 i i .�.�3. 9 ^•Gti • `?� silk a .'��v, i � �U' ;'S'"':�5:,.�j� 9ili.il�. Mr. "I lionlas C:'o(III[1. RE. 7ifly 25. 2008 Pagel 2 of Scope of Work Based on information provided by CPY, GA has developed a preliminary scope for the SUE work required for this project. The scope of work may be modified, with CPYs' concurrence, during the performance of the SUE fieldwork if warranted by actual field findings. The scope of this proposal includes Quality level "A" along NW Loop 820 from 800 feet northeast of Quebec Street to 3,000 feet northeast of Azle Avenue along the southeast ROW line. Based on the requested test hole locations which include gas — 2 each; sanitary sewer — 4 each; water — 2 each; storm drain — 3 each; for a total of 1 I test holes. For purposes of this proposal we are including an additional 3 test hoes in case additional test holes will be required. It is G&A's understanding that surveying is apart of this scope and will be completed by G&A personnel. Locating Procedures GA will utilize its utility designating marks and assistance from CPY personnel to layout the test -hole locations. GA will attempt to place the test holes outside of paved areas wherever possible. If non - routine traffic control measures are required, these services will be considered extra and will be invoiced at cost. GA will utilize non-destructive vacuum excavation equipment to excavate test holes at the required locations. Once each utility is located, GA will record the utility type, size, material, depth to top, and general direction. Each test hole will be assigned a unique ID number and will be marked with rebar/cap, nail/disk, or chiseled X, as appropriate. The test -hole ID number and other pertinent utility information will be placed at each test -hole location. Test -hole excavations will be backfilled with appropriate material and the original surface will be restored. The backfill will be compacted in lifts by mechanical means to prevent future settlement. Test -hole locations will be added to the previously mentioned field sketches for use during surveying activities. Deliverables GA will produce SUE plans depicting the type and horizontal location of the designated utilities. The size of each utility will also be presented on the SUE plans where test -hales have been completed. GA will produce a summary sheet containing test hole field notes. A test hole data form will be prepared for each test hole following receipt of coordinate and elevation information from the surveyor. SUE plans depicting designated utility information will be revised to include test hole locations. GA will provide completed electronic file and appropriate hard copy files to CPY. Schedule GA estimates that the QL"A" test holes can be completed in four k4) workdays with a deliverable being completed five days after the survey has been collected and processed. P:\Pmjects\CPY\UtiGties\Northwest, Water Transmissioin Main\Contract & Invoices\gl a_proposal.doc 101. f hoin<t` Co hill. P.F F'a e 3 of .; Estimated Fees GA proposes to perform the work on a "Unit Rate" basis. Based on the unit rate schedule below, the cost for designating, QL"A" is thirteen thousand, six hundred dollars and 001100 cents ($13,660.00) including the survey cost to collect the SUE data. Locating Task Estimated Quantity Rate Unit Total Estimated Cost 0 to 5 ft. 8 $840.00 each $ 6,720.00 5.1 to 8 ft. 4 $1,0%00 each $ 49240,00 8.1 to 13 ft. 2 $1,350.00 each $ 2,700.00 13.1 to 20 ft. $2,000900 each We look forward to working with you on this very important project. If you have any questions or require additional information, please contact me. Sincerely, Gorrondona &Associates, Inc. Ceelj K. Vick Division Manager 4.a5-AIC IjkKY fr FT WO RTHb TX P:\Projects\CPY\Utilities\Northwest Water Transmissioin Main\Contract &Invoices\ql a_proposal.doc Gorrondona & Associates, Inc. c Lai Siirv�yu�g • Srif�,�uriac:e Utility Engineering Utility Coordination ■ ,Ban* ` July 2, 2008 Chiang, Patel & Yerby, Inc. Attn: Mr. Michael F. Graves, P.E. 15100 Trinity Blvd., Suite 200 Fort Worth, Texas 76156 Re: Fort Worth NW Water Transmission Main —Additional Surveying Services Dear Mr. Graves: Gorrondona &Associates, Inc. (GAI) is pleased to submit this proposal for professional land surveying services for the above referenced project. The following itemized surveying services for each alignment to be provided by Gorrondona & Assoc., Inc. are as follows: ALIGNMENT The route of the additional surveying services starts at the south property line of the City of Lake Worth Park property and extend approximately 2,100 linear feet to the north line of Roberts'Cut-Off. TASK 1. — TOPOGRAPHIC/DESIGN SERVICE5 1.) PROJECT CONTROL — Extend existing project control for new waterline alignment. 2.) TOPOGRAPHIC/DESIGN SURVEY —The topographic design survey shall include locating all existing features within 150 feet of the eastern limits of the existing topographic survey. Cross -sections shall be taken at approximate 100-foot intervals or as needed to generate an accurate Digital Terrain Model. Features located shall include, but not limited to, property corners, water valves, manholes, power poles, storm drain structures, road and parking lot pavement, sidewalks, buildings, trees (tree lines in highly condensed areas, individual trees 6" or larger including all landscape trees), fences, curb & gutter, ball fields, railroad rails and tops & toes of slope. 3.) DELIVERABLES — Prepare a final digital topographic/design survey drawing in AutoCAD Civil 3D format at a scale of 1 "= 20'. The drawing shall show all features located, horizontal and vertical control point and existing visible utilities along with merging the new topographic survey into the existing Digital Terrain Model with one -foot interval contours. Other deliverables shall include a copy of all field notes and field sketches, a hard copy coordinate list of points located in the field and a digital ASCII point list. Gorrondona &Associates, Inc. can complete the above -itemized professional land surveying tasks for an hourly not -to -exceed fee of $8,400.00 utilizing the attached fee schedule. If you have any questions or need additional information please contact me at (817)4964424. Sincerely, GORRONDONA &ASSOCIATES, INC. W. Truett Wilson I1 w ��® Survey Manager CITY SECRETARY 6707 Brentwood Stair Road •Suite 50 •Fort Worth, Texas 76112.817.496.1424 •Fax 817.496.1768 • www.ga-inc.net Gorrondona & Associates, Inc. Land &vvevinrj . SubSLOace. Utility Engineering • Utility Coordination GORRONDONA &ASSOCIATES, INC. HOURLY FEE SCHEDULE DESCRIPTION OF SERVICE HOURLY RATE PRINCII'AL/R.P.L.S. PROJECT MANAGER/R.P.L.S. SURVEY TECHNICIAN/R.P.LS. SURVEY TECHNICIAN TWO MAN FIELD CREW W/EQUUPMENT THREE MAN FIELD CREW W/EQUIPMENT FOUR MAN FIELD CREW W/EQUIPMENT ONE MAN FIELD CREW W/RTK-GPS EQUIPMENT TWO MAN FIELD CREW W/RTK-GPS EQUIPMENT $ 95.00 $ 62.00 $ 102.00 $ 130.00 $ 165.00 $ 105.00 $ 130.00 6707 Brentwood Stair Road •Suite 50 •Fort Worth, Texas 76112.817.496.1424 •Fax 817.496.1768 • www.ga-inc.net