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DOUGLAS COUNTYPHASE I IHB EXTENSION ROSEBURG LANDFILL Bids Due 2:00 pm, August 20, 2024 NOTICE TO CONTRACTORS RFB #218The overall project to extend the Intermediate Hydraulic Barrier (IHB) Liner System at Roseburg Landfill will be performed in two Phases. Phase 1 is the subject of this RFB. Phase 2 will be contracted for separately following the completion of Phase 1. The Phase 1 work (the Project) includes, but is not limited to, the following: · Identifying and excavating approximately 80,000 cubic yards of soil suitable for engineered fill from a borrow area located to the west of the landfill. The borrow area includes approximately 200,000 cubic yards of soil excavated during the development of Roseburg Landfill. Limited test pits in the area identified soil suitable for compacted fill without encountering oversize material. However, verbal communications indicate oversize materials - relative to the gradation requirements for the engineered fill in the Construction Drawings - may be present within the borrow area. · Hauling soil that is suitable for engineered fill to the project area. · Prepare the project area for the placement of borrow soil by removing existing surficial materials including asphalt, · Placing and spreading the borrow soil in designated lift thicknesses and removing any oversize material, as outlined in the Construction Drawings, from the soil. · Moisture conditioning and compacting the soil lifts to achieve the required compaction criteria in the Construction Drawings. · Finish grading and rolling the surface of the completed engineered fill to the dimensions and maximum slopes in the Construction Drawings. · Cooperating with third-party testing and inspection entities retained by Douglas County. · Potholing at approximately 100 foot intervals along the south edge of the existing liner system to determine the alignment and elevation of the existing geomembrane liner to confirm design information for the Phase 2 work. Potholing to be accomplished by hand digging an approximate 2'x2' square to expose existing liner. · Providing the services of an Oregon-licensed Professional Land Surveyor to layout the work, document as-built conditions, and measure construction quantities for payment. Sealed bids for the Project described herein must be received by the Douglas County Management and Finance Department, Attn: Purchasing Manager, 1036 SE Douglas Avenue, Courthouse Room 301, Roseburg, Oregon 97470, NO LATER THAN 8/20/24 by 2:00 PM. Bids received after the due date and time will not be considered. Bids may not be withdrawn after the time set for opening. Bids will be publicly opened and read during a regularly scheduled Douglas County Board of Commissioners meeting, which is scheduled for 8/21/24 at 9:00 AM. Bids shall be accompanied by a certified check, cashier's check, irrevocable letter of credit, or bid bond in an amount equal to ten percent (10%) of the total amount of the Bid. All Bidders must submit a list of their first-tier subcontractors. A non-mandatory pre-bid meeting is scheduled for 8/8/24 at 2:00 PM, which will be held at Roseburg Landfill, 384 McLain W Avenue, Roseburg, Oregon 97471. Bidders are encouraged to attend prior to submitting a Bid. Bidders must view and obtain solicitation documents from the Douglas County Bid Documents Website: https://douglascounty-oregon.us/Bids.aspx. Specifications for the Project may also be viewed at the Douglas County Solid Waste Department, 1036 SE Douglas Avenue, CH Rm 308, Roseburg, Oregon 97470. Bidders are not required to submit a prequalification application. The Board of Commissioners will not consider a Bid unless the Bidder is registered with the Construction Contractor's Board. Bidders shall comply with the provisions of ORS 279C.800 to 279C.870 (Prevailing Wage Rates). Each Bid must contain a statement as to whether the Bidder is a resident bidder, as defined in ORS 279A.120. The Project does not require a contractor or subcontractor to be licensed under ORS 468A.720 for asbestos abatement. The Board of Commissioners reserves the right to reject any or all Bids, to waive technicalities, and to award the contract to the lowest responsive responsible Bidder. The Board of Commissioners may reject any Bid not in compliance with all prescribed public contracting procedures and requirements and may reject all Bids upon a finding that it is in the public interest to do so. The County may cancel this RFB at any time if the County determines that cancellation would be in the public interest. Published Aug. 5, 2024. 2637333

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