Title
24th Street Water Treatment Plant Reservoir 3 Rehabilitation - Design-Bid-Build - WS85050051-1 (Ordinance S-43258)
Description
Request to authorize the City Manager, or designee, to accept M.A. Mortenson Construction (Chandler, Ariz.) as the lowest priced, responsive, and responsible bidder and to enter into a contract with M. A. Mortenson Construction for construction services for the 24th Street Water Treatment Plant (WTP) Reservoir 3 Rehabilitation project. Further request authorization for the City Controller to disburse all funds related to this item.
Report
Summary
The 24th Street WTP Reservoir 3 (1-ES2-3) is a 20-million-gallon reservoir in need of rehabilitation, which will include replacement of an aluminum roof deck, column and girder repairs, liner replacement and other miscellaneous repairs. M.A. Mortenson Construction will provide construction services in support of the 24th Street WTP Reservoir 3 Rehabilitation project. The work includes removal of the existing metal roofing system, liner, exterior piping and sack finish from the exterior ringwall; repair to existing shotcrete reservoir floor; installation of a new polypropylene membrane liner and a new standing seam metal roofing system; replacement of the level transducer/transmitter; ventilation system improvements; stairway handrails; addition of ships ladders, walkways, equipment hatches, and roof openings; and other miscellaneous improvements for the roof structural framework. Miscellaneous site work includes corrosion removal, signage improvements, vegetation removal along the reservoir embankment, electrical and instrumentation upgrades.
Procurement Information
Three bids were received in compliance with Section 34-201 of the Arizona Revised Statutes by the Street Transportation Department on Dec. 13, 2016. The bids were received by the Equal Opportunity Department (EOD) for review to determine subcontractor eligibility and general contractor responsiveness in demonstrating compliance with the project’s Small Business Enterprise (SBE) goal of three percent. EOD determined all three bidders were responsive.
Bids ranged from a low of $3,115,675.46 to a high of $3,806,339. The Engineer's estimate and three lowest-priced, responsive, and responsible bidders are listed below:
Engineer's Estimate: $3,300,000
M.A. Mortenson Construction: $3,115,675.46
Schofield Civil Construction, LLC: $3,377,457
Quest Civil Contractors, Inc.: $3,806,339
Contract Term
The term of the contract is 280 calendar days. The contract work scope identified and incorporated into the contract prior to the end of the contract may be agreed to by the parties, and work may extend past the termination for work in progress. No additional contract work scope changes may be executed after the end of the contract term.
Financial Impact
The bid award amount is within the total budget for this project. Funding is available in the Water Services Department's Capital Improvement Program budget. Contract payments may be made up to the contract limits for all rendered contract services, which may extend past the contract termination.
Location
The 24th Street Water Treatment Plant is located at 6202 N. 24th St.
Department
Responsible Department
This item is submitted by Deputy City Managers Karen Peters and Mario Paniagua, the Water Services Department and the City Engineer.