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SEWER FORCE MAIN - OSLO ROAD WEST <br />ENGINEERING CONTRACT WITH RIMLEY HORN <br />.The Board reviewed memo from Utility Services Director Terry <br />Pinto dated May 29, 1992: <br />DATE: MAY 29, 1992 <br />TO: JAMES E. CHANDLER <br />COUNTY ADMINISTRATOR <br />FROM: '1'ERRANCE G. PINTO <br />DIRECTOR OF UTILITY CES <br />STAFFED AND <br />PREPARED BY: WI . MCCAIN <br />PROJECTS ENGINEER <br />D AR F UTILITY SERVICES <br />SUBJECT: SEWER FORCE MAIN; OSLO ROAD WEST <br />ENGINEERING CONTRACT WITH KIMLEY-HORN <br />IRC PROJECT NO. IIS -90 -19.1 -CS <br />BACKGROUND: <br />On December 11, 1990, the Board of County Commissioners approved <br />Amendment No. 2 to an existing roadway design contract with Public <br />Works (see attached agenda item and minutes of the above -referenced <br />Board meeting). Amendment No. 2 was for the design <br />of an 8" and 10" force main across U.S. Highway and construction <br />y <br />on Oslo Road past Timber Ridge. Shortly after the executioniof this <br />• contract and a review of the preliminary plan submittal, the <br />Utilities Department selected a site and a design engineer for the <br />South County Wastewater Treatment Plant; the site to be east of 20th <br />Avenue on Oslo Road. As a result of this decision, the force main <br />on Oslo Road must now be upsized to a 24" main to feed the <br />wastewater treatment plant. We are, therefore, seeking Board <br />approval for the attached Addendum to Amendment No. 2 for additional <br />engineering services for the required design modifications. <br />ANALYSIS: <br />The original design, permitting, and construction phase services fee <br />was $20,700.00, and was based on the Farmers Home Administration fee <br />curve in use at that time. We have now generated a cost estimate of <br />$300,354.00. In keeping with the originally -outlined contract, we <br />arrive at a cost addition of $13,240.00, for a total lump sum of <br />$33,940.00. This fee is well within normal limits for a project of <br />this magnitude. The large change in pipe diameter will require a <br />complete redesign and routing change, along with a total relocation <br />of the U.S. Highway 1 jack and bore. (Please see the attached <br />original Amendment No. 2 and the proposed Addendum to this amendment <br />for signature, along with a copy of the cover letter from <br />Kimley-Horn dated May 5, 1992.) <br />Funding for this project will come from the impact fee fund. <br />RECOM UM-ATION: <br />The staff of the Department of Utility Services recommends that the <br />Board of County Commissioners execute the attached Addendum with <br />Kimley-Horn in the amount of $13,240.00. <br />25 <br />Rp p P � <br />