Fresno County
Owner Reference: 12401763
04/23/2024
Past bid date
Pre-Bid: 04/11/2024 @ 02:00pm
Estimate: $1,200,000
Trades: Class A - *General Engineering Contractor GEC; Subcontractor Opportunities
The scope of work includes but is not limited to; the dewatering and cleaning of two digesters, and rehabilitation of one digester at the Fresno-Clovis Regional Wastewater Reclamation Facility (RWRF). The scope of work for the cleaning is part of a rotating maintenance program that was established to improve efficiencies. Digesters #2 (75 foot diameter) and #9 (105 foot diameter) will contain approximately 13 feet of accumulated solids consisting of sludge, sand and other debris normally found in wastewater digesters. The work under this contract is to furnish any and all necessary labor, materials and equipment for the removal of access hatches and cleaning of the digester, this generally includes but is not limited to screening of pumped digester sludge (capable of removing particles ΒΌ inch and larger), a dewatering process to remove water from the screened sludge resulting in a minimum of 20% bio solids by weight, and transferred to a designated staging area (the fluid separated during dewatering process will be deposited into a plant drain).Then, after the digester is emptied, any solids on the digester ceiling, walls, floors and equipment must be water blasted until clean as shown on the plans and specified herein. The scope of work for rehabilitation consists of coating of wall surfaces in Digester #9. The rehabilitation and coating is expected to include, as a minimum, removal of existing coating, a high pressure water cleaning sufficient to remove all loose concrete and concrete repair, if necessary, with an acid resistant cement or other acceptable product. The corrosion resistant protective coating shall be a spray on elastomeric polyurethane protective coating product. The intent is to allow the Bidder to install a coating system, concrete repair system, top coating, etc. to ensure a 20 year product life when installed in a wastewater environment. All materials shall be suitable for use with ambient air conditions containing H2S in a Wastewater Treatment Plant enclosed environment. Bonds required. Prevailing wages.
James Jackson
Login or create an account
Login or create an account
Owner: City of Fresno CA
Published 03/29/2024 on Construction Bid Source
DISCLAIMER: The bid notifications listed on Construction Bid Source are compiled from various sources and updated daily. It is the responsibility of each user, whether browsing publicly or logged in, to contact the project owner directly for the purpose of bidding and obtaining additional project details. Construction Bid Source does not assume any responsibility for omissions or errors in the information provided.