Cold Mix Asphalt

Ellis County Public Works is requesting proposals for mixing a minimum of 5000 tons with a maximum tonnage to be determined at a later date of cold mix asphalt material for use in our 2023 asphalt program. Base bid shall be for contractor to supply aggregates ( 1/2 "chips, 1/4 " screenings and sand) and mixing for the cold mix with Ellis County separately contracting asphalt oil (emulsion). Contractor will be required to mix asphalt utilizing Ellis County's and KDOT's Standards and Specifications as stated in paragraph two (2) of this Request for Proposal. The contractor will furnish all labor, equipment and fuel necessary to mix and deliver product to Ellis County Public Works Road & Bridge Division locations at 1195 280th Avenue, Hays, Kansas or Ellis Yard, 500 East 9th Street, Ellis, Kansas. An alternative option may be considered to permit Ellis County Public Works to transport the finished product. Contractor may propose alternate site for consideration by Ellis County during the selection process. Also, contractor shall produce and stockpile product for Ellis County to haul from location as needed during the 2023 Asphalt Season. The work shall consist of providing aggregate materials, running and drying materials through your drum mixer asphalt plant and adding County furnished asphalt oil. Ellis County will provide asphalt from our asphalt supplier at the percentage we desire. All asphalt mixing shall conform to the Requirements of Division 600 of the Standards and Specifications for State Road and Bridge Construction and Kansas Department of Transportation, with special attention given to temperatures. Maximum temperatures of the finished product from the discharge chute shall be no more than 185 to 200 degrees Fahrenheit for the use of CMS-1 emulsion asphalt. Workability of the finished product must be maintained, and stockpile workability and longevity must be maintained. All produced asphalt will ultimately be bladed on Ellis County roads by county forces. Weight of the total mix shall be based on the mixing plant aggregate totalizer or a calculated weight obtained from scales provided by the contractor. Fiscal Year 2023 mix components are 15% 1/2 " chips, 65% 1/2 " sand, and 20% 1/4 " screenings, with an estimated 5.8-6.25% emulsion. A second mix component may be considered with 60% sand, and 40% Quartzite screenings with an estimated 6.8% to 7.0% emulsion. Final gradations and mix quantities will be provided prior to notice to proceed. (Only CMS-1 emulsion asphalt shall be considered for the asphalt mix design). Ellis County requires that all products shall be available and transported or stockpiled at pre-approved site no later than May 31, 2023. Liquidated damages in the amount of $500.00 for each calendar day, exclusive of Sundays and legal holidays, shall be charged for each day that the work remains uncompleted. When requested, respective contractor shall perform extraction tests on site to ensure the finished product will meet the specific mix design as furnished by the County Public Works Director. All test results shall be documented and provided to the Ellis County Public Works Director, 1195 280th Avenue, Hays, KS 67601. A preproduction dry sample shall be required prior to commencement of mixing asphalt and submitted to our office 24 hours prior to production. All materials shall be guaranteed as specified in scope of work and shall be completed as date specified in Request for Bid Proposal. Upon unforeseen circumstances, a written notification shall be required and submitted to the Ellis County Public Works Director for approval of extension. If approval is granted, extension shall not exceed 10 days. NO exceptions, alterations or deviations from the County requested specifications shall occur without written orders indicating change or modifications from Ellis County. Contractor shall furnish all Worker's Compensation and Liability Insurance pertaining to the accepted contract. Please include any references you may have regarding your previous customers and experience in cold mix asphalt mixing. If you are interested in submitting a bid proposal related to our 2023 asphalt mix requirements, please do so in the following manner. Proposals shall be submitted in a sealed envelope clearly marked on outside stating "2023 Asphalt Mix Proposal". Proposals received after the deadline will be returned to sender unopened. Ellis County reserves the right to reject any or all proposals and to waive all informalities and irregularities in the bidding process. BY SUBMITTING THIS PROPOSAL, THE VENDOR AGREES TO ALL TERMS SET FORTH HEREIN AND WILL PROVIDE THE SPECIFIED MATERIALS AT THE PRICE STATED HEREIN. VENDOR FURTHER CERTIFIES THAT THEY ARE THE ONLY AUTHORIZED DEALER OR REPRESENTATIVE FOR THE PROPOSED MATERIALS. ALL PROPOSALS SHALL BE BINDING UPON THE VENDOR FOR 30 DAYS FROM DATE OF OPENING, AND UPON EXECUTION OF PURCHASE ORDER BY ELLIS COUNTY. ELLIS COUNTY RESERVES THE RIGHT TO ACCEPT OR REJECT ANY OR ALL PROPOSALS AND/OR SELECT THE PROPOSAL CONSIDERED IN THE BEST INTEREST OF ELLIS COUNTY. If you have questions regarding this Request for Proposal, please contact Road & Bridge Supervisor, Curt Hoffman and/or Public Works Director, Brendan Mackay at 785-628-9455.

Division 01 -	General Requirements.
Division 10 -	Specialties.
Division 11 -	Equipment.