The City and County of Honolulu will be soliciting bids for the construction of a large-diameter sewer conveyance and wet weather storage tunnel that will connect the Kaneohe Wastewater Pre-Treatment Facility with the Kailua Regional Wastewater Treatment Plant located on the northeast side of the island of Oahu. Prospective bidders will need to obtain their Hawaii contractor’s license at the time the Bidder’s Pre-Bid Statement of Qualifications are submitted and not at the time of bid opening, as was previously reported. A Hawaii license takes two to three months to obtain. For more information on how to obtain a Hawaii license, bidders can contact the State of Hawaii, Department of Commerce & Consumer Affairs Professional and Vocational Licensing Division at (808) 586-3000. The Bidder’s Pre-Bid Statement of Qualifications forms are anticipated to be due in early March 2013.
The completed sewer tunnel will consist of the installation of a 10-ft, 3-in. ID fiberglass pipe, backfilled with low-density cellular concrete within the tunnel bore, and will be approximately 3 miles in length. Most of the tunnel is located in strong basalt. The construction contract is tentatively scheduled to advertise in February/March 2013, open bids in June/July 2013, and has a three-year construction period. Also included in the contract scope are the construction of two drop shafts, an intermediate access shaft, and inter-connecting pipelines and manholes at both upstream and downstream wastewater treatment facilities. The estimated project cost is $150 million.