Coconino County Ionwave #2026-07 Addendum 1

Construction of Operations Center and Vehicle Storage Building for Coconino County Public Works

Coconino County Public Works is seeking bids for the construction and expansion of its Public Works facility in Flagstaff, Arizona, to support emergency management, flood control, and vehicle storage operations. - Government Buyer: - Coconino County Public Works (including Facilities division) - Project Scope: - Construction of a 9,300 sq ft Operations Center and a 17,200 sq ft Vehicle Storage Building - Site preparation, grading, and drainage improvements - Structural engineering and geotechnical evaluation services - Water main extension (approx. 355 linear feet of 8-inch Class 305 C-900 PVC or Class 350 Ductile Iron Pipe) - Installation of two fire hydrants and two fire service connections - Sewer system extension (approx. 262 linear feet of 8-inch PVC sewer main, replacement of one manhole, addition of one new manhole, and two new sewer service connections) - Construction of a cantilevered retaining wall, steel beams (W18x40), and steel columns (HSS4x4x1/4) for partition walls - Installation of Acousti-Seal Premier Paired Panel System for operable partitions - Notable Requirements: - Compliance with 2018 International Building Code and City of Flagstaff engineering standards - Fire flow requirements: 1,500 gpm for 2 hours (automatic sprinkler systems in both buildings) - Detailed geotechnical and structural design specifications, including rebar, concrete, and acoustical panel systems - Water main materials must be C-900 PVC or Class 350 Ductile Iron Pipe (polywrapped) - Sewer system designed for peak flow of 11,136 gallons per day, serving 174 employees - OEMs and Vendors Referenced: - Acousti-Seal (operable partition wall system) - LEA Architects, LLC, Peak Engineering, Inc., Caruso Turley Scott Structural Engineers (design and technical documents) - All qualified vendors may bid; no set-aside restrictions.

Description

This solicitation is for the construction of two new buildings at the Coconino County Public Works facility located at 5600 East Commerce Ave, Flagstaff, AZ. The project includes a 9,300 square foot Operations Center building to support emergency management and flood control, and a 17,200 square foot Vehicle Storage building for county vehicles. The scope involves site work, structural calculations, geotechnical evaluations, water main extension, drainage improvements, and sewer system extension. A mandatory pre-bid meeting is scheduled on May 5, 2026, at the project site.

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