Broken Arrow Municipal Authority
Meeting of: 07-03-17
To: Chairman and Authority Members
From: Engineering and Construction Department
Title:
title
Consideration, discussion, and possible award of the lowest responsible bid to Crossland Heavy Contractors, Inc., and approval and authorization to execute a construction contract for Digester Rehabilitation at the Lynn Lane Wastewater Treatment Plant (Project No. 165428)
End
Background:
The Digester Rehabilitation at Lynn Lane Wastewater Treatment Plant (LLWWTP) is a project recommended from the Sludge Digestion Evaluation contract performed by Tetra Tech. The project consists of cleaning debris from the digesters, rehabilitating the aeration piping and replacing the fine bubble diffusers with coarse bubble diffusers. Currently the southern digester is out of service for these repairs. Both digesters will receive the same rehabilitation.
The Digester Rehabilitation is the first of two approved LLWWTP projects that will reduce plant odors while improving plant capacity and efficiency. Another is the Headworks Rehabilitation, including screening facility and grit removal, which is scheduled for a construction start in late 2017.
The Digester Rehabilitation construction project was advertised for bids on May 10 and 17, 2017. The project was divided into a Base Bid for the digester cleaning and rehabilitation, Additive Alternate No. 1 for access platforms, and Additive Alternate No. 2 for air flow meters at the two digesters. Bids were opened on June 20, 2017. There were four (4) bidders. The lowest responsible bid was submitted by Crossland Heavy Contractors, Inc., in the amount of $834,448.00 for the Base Bid, $15,400.00 for Additive Alternate No. 1, and $24,000.00 for Additive Alternate No. 2, for a total of $873,848.00. The engineer's estimate was $1,200,060.00 for the Base Bid, $26,000.00 for Additive Alternate No. 1, and $30,000.00 for Additive Alternate No. 2, for a total of $1,256,060.0...
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