Agenda - Public Works Committee - 10/18/2022

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Ridgeway's home due to a heavy rain event forecast for that evening. To date, these sand bags have prevented stormwater runoff from entering the home during more than one heavy rain event. On June 21, 2022, the Public Works Committee considered an improvement project that included constructing a storm sewer pipe with manholes and ditch inlets along one side of Argon Street, and to outlet the storm sewer into the existing stormwater pond south of Alpine Drive between Argon and Barium Streets. Due to the estimated cost of up to $500,000, the Committee directed Staff to explore more cost-effective options. Following discussions between the Public Works Committee, the property owners of 15410 Argon Street, and Staff during the July 19, 2022, Public Works Committee meeting, Staff enlisted Bolton & Menk to collect topographic survey data across several properties along Argon Street and Barium Street for the purpose of designing and preparing plans for a drainage improvement project on 15410 Argon Street, and to ensure that performing the required grading on this property would not adversely impact properties downstream. Staff received the topo survey data in late August and used it to prepare plans and confirm that performing the required grading on 15410 Argon Street would not adversely impact properties downstream. The plans were then used to prepare the attached Request for Proposal (RFP). The RFP was submitted to 5 contractors requesting their proposals by 10:00 AM, October 5, 2022. Three proposals were received in return and a summary of the not -to -exceed lump sum amounts is shown below. Contractor ............................................................................................................................................. Dave Perkins Contracting, Inc. ............................................................................................................................................. One Call Contracting, Inc. ............................................................................................................................................. Kuechle Underground, Inc. Lump Sum Not -to -Exceed Proposal Amount $16,760.00 $16,987.00 $45,000.00 All three proposals exceed the not -to -exceed amount of $10,000 as directed by motion of the Public Works Committee on August 22, 2022 (minutes attached). Staff is therefore requesting additional direction from the Public Works Committee, in lieu of presenting the proposals to the City Council for action. Timeframe: Staff anticipates 20 minutes will be required to present this case and respond to questions. Observations/Alternatives: Observations: Staff informed the property owners at 15410 Argon Street that the three proposals received significantly exceeded the not -to -exceed amount of $10,000 as directed by motion of the Public Works Committee, and that this case would be presented and discussed this evening. Staff also informed the property owners that Staff will be seeking direction from the Public Works Committee on whether to accept the proposals and authorize execution of the lowest cost proposal from Dave Perkins Contracting, to reject all proposals and direct Staff to request new proposals next Spring after revising the plans and RFP to lower construction costs and increase the project completion schedule to 2 months, or to reject all proposals and direct City staff to remove the sand bags installed by staff if the property owner no longer wants the sand bags on their property. Staff then asked the property owners if they would be willing to contribute any costs for the proposed drainage improvements on their property to help offset the difference between the Public Works Committee directed not -to -exceed amount of $10,000 and the low proposal not -to -exceed amount of $16,760. The property owners responded that they feel the City should pay for 100-percent of the proposed improvements. The property owners stated they will be attending this meeting. Alternatives: