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Home My WebLink AboutWWP272829(6) ADDENDUM NO. 1 to CONSULTANT AGREEMENT FOR PROFESSIONAL SURVEYING SERVICES CAG 99-156 Sewer Design Topographic Mapping, 80th Avenue South _Z s This Addendum is made and entered into this day of 4999; by and between the City of Renton, hereinafter called the"City"and Horton Dennis& Associates,Inc., hereinafter called the"Consultant". WITNESSETH THAT: Whereas, the City engaged the services of the Consultant under Consultant Agreement dated November 8, 1999, to perform survey services for the 80th Avenue South Sewer Extension project; and Whereas, the City has not sufficient qualified survey engineering employees to provide the services needed within a reasonable time and Whereas, the City and the Consultant have determined that additional work is required to meet the goal of the project. Those additional work items being defined, with costs anticipated, as shown in the attached letter dated December 29, 1999. NOW, THEREFORE, in accordance with said Section VIII Extra Work of the above-mentioned agreement dated November 8, 1999, it is mutually agreed that said agreement is amended as follows: 1. Revise the maximum amount payable under Section VI-Payment from$9,650.00 to $16,130.00, which is an increase of$6,480.00. EXECUTION IN WITNESS WHEREOF, the parties hereto have executed this Addendum No. 1 to the Sewer Design Topographic Mapping, 80'b Avenue South project as of the date and year first above written. CONSUL NT ITY OF RENTON 1 l G Signature V Date Sijn4ye Drate Gregg Zimmerman, Administrator Planning/Building/Public Works Title Horton Dennis &Associates, Inc. RECE ' DEC CITY OF HDA Consulting Engineers, Planners & Surveyors _ 9 v C17Y OF IiEW December 29, 1999 UTijJTYSYSTEMSN David M. Christensen Utility Systems Division Renton City Hall - 5th floor 1055 South Grady Way Renton, Washington 98055 Re: Sewer design topographic mapping expansion, South Langston Rd. to 80th South Dear David: Thank you for giving Horton Dennis and Associates (HDA)the opportunity to present a scope and fee estimate for expansion of the 80th Ave. South sewer extension project. SCOR_ HDA will produce a topographic base map for your project drawn at a 1"=20' scale and based on City of Renton vertical and horizontal datums using Autocad version 14. The new product will be integrated into the drawing previously produced by HDA. The mapping limits are outlined on the enclosed marked up map of the site. The remaining houses and back sides of houses previously located will be added to the base map together with lowest floor elevations. All surface features within this expanded area will be shown along with two (2) foot contours supplemented with spot elevations in areas of low relief. Underground utility information will be shown based on surface features and supplemented with as-built data gathered from the various utility providers. Right-of-Way lines and parcel lines, previously established, will be shown. Fee: The fee for the above scope of work will total $6,480. This fee includes a previous expansion of the mapping from South 130th to Renton Ave. South along 80th Ave. South. (previous expansion= $1,600: this expansion= $4,880) 320 Second Avenue South, Kirkland, Washington 98033, Phone (425) 822-2525, Fax (425) 822-8758 Kirkland 9 East Wenatchee•Leavenworth Mr. David Christensen December 29,1999 page 2 of 2 Schedule: HDA will be able to start field work within two (2 )working days from Notice to Proceed with a ten(10) working day turn-around. Sincerel Neil abbage P.L.S. Horton Dennis & Associates, Inc. � � •nay�I i • I _ cams I —� E• I I \ - f 017027 I ,. lip I t4 t� i arose I � I � I• t4 I ax.o � I t I� v CITY OF RENTON PLANNING/BUILDING/PUBLIC WORKS MEMORANDUM DATE: January 4,2000 TO: Gregg Zimmerman VIA: Lys Hornsby h-- FROM: Dave Christens SUBJECT: 80''Avenue South Survey—Addendum No. 1 Gregg, please find attached for your signature, Addendum No. I to the 80`b Avenue South Survey. Horton Dennis Associates as part of Wastewater's sewer extension proposed for this area are currently performing this survey work. Additional survey work was determined to be needed when we reviewed the initial survey and determined that we may need to install additional facilities in order to provide service to all the area. The Addendum form has previously been reviewed and approved by the City Attorney and the insurance is still current from the original contract. Document2\d ADDENDUM NO. 2 to CONSULTANT AGREEMENT FOR PROFESSIONAL SURVEYING SERVICES CAG 99-156 Sewer Design Topographic Mapping, 80th Avenue South This Addendum is made and entered into this day of 2000, by and between the City of Renton, hereinafter called the"City"and Horton Dennis&Associates, Inc., hereinafter called the"Consultant". WITNESSETH THAT: Whereas, the City engaged the services of the Consultant under Consultant Agreement dated November 8, 1999, to perform survey services for the 80th Avenue South Sewer Extension project; and Whereas, the City has not sufficient qualified survey engineering employees to provide the services needed within a reasonable time and Whereas, the City and the Consultant have determined that additional work is required to meet the goal of the project. Those additional work items being defined, with costs anticipated, as shown in the attached letter March 20, 2000. NOW, THEREFORE, in accordance with said Section VIII Extra Work of the above-mentioned agreement dated November 8, 1999, it is mutually agreed that said agreement is amended as follows: 1. Revise the maximum amount payable under Section VI-Payment from $16,130.00 to $21,970.OQ which is an increase of$5,840.00. EXECUTION IN WITNESS WHEREOF, the parties hereto have executed this Addendum No. 2 to the Sewer Design Topographic Mapping, 80' Avenue South project as of the date and year first above written. 4enaturev NT CITY OF RENTON a�o /4Z, 4/14 or 3 00 y 3 to Signa r D to Gregg Zimmerman, Administrator Planning/Building/Public Works i G V Y. Title Horton Dennis &Associates, Inc. MAR 2 ` 2000 DA HCITY`OF ._ I _0117ySY47 ON Consulting Engineers, Planners & Surveyors March 20, 2000 Job # 9815.02 David M. Christensen Utility Systems Division Renton City Hall - 5th floor 1055 South Grady Way Renton, Washington 98055 Re: Surveying cost overrun on 80th South sewer extension project, CAG 99-156 and Addendum No. 1 Dear David: Horton Dennis and Associates (HDA) based the original budget for this contract and its addendum on normal field and plat conditions. We are asking to be given full compensation for work performed on the site per Section 6 of the contract (Payment). In our recently completed survey of the 80th South sewer extension project, HDA encountered unforeseen obstacles. Costs not anticipated in the original fee proposal are detailed below. 1) A great deal of difficulty was encountered in trying to reconstruct the old plat of Earlington Acre Tracts. The plat had to be analyzed and recreated within the NE Quarter of Section 13 with each block being individually pro-rated from the exterior of the Quarter Section and the Cedar River Pipeline right-of-way towards the interior where the project is located. No survey monuments within the interior of the plat could be tracked historically as preserved locations of original monuments. Only one(1) point (a railroad spike in the asphalt) was found near the site but could not be used until proven. These additional services amounted to $2,600. 2) Field crew operations were hampered by inquisitive neighbors with each and every one requiring a detailed explanation of what the crew was doing in their yard. A more thorough public information campaign would help minimize this problem on future jobs. It is estimated that an additional half day of crew time was spent in this activity, $460. 320 Second Avenue South, Kirkland, Washington 98033, Phone (425) 822-2525, Fax (425) 822-8758 Kirkland•East Wenatchee•Leavenworth pg. 2 March 20, 2000 80th South Sewer Extension 3) Additional monuments defining the Quarter Section and the Cedar River Pipeline right-of- way needed to be located in order to define the perimeter of the old plat and locate the individual parcels within the plat amounting to $1,380 in additional services. 4) More surface features than anticipated were found in the back yards and outer edges of rights-of-way, features obscured by vegetation and structures being unobservable by a normal site recon. All surface features were considered important for design, as a route for the proposed sewer had not been selected. This forced additional services amounting to one day in the field and one day of drafting, totaling $1,400. The total additional services in both field and office time were $5,840. A detailed statement of time expended will be supplied upon request. Any assistance that you can provide in helping HDA recover the $5,840 overrun would be appreciated. Sincerely, Horton enms and Associates 4alJ4/'*�- Neil Cabbage P.L.S. Principal Surveyor Horton Dennis & Associates, Inc.