Nevada Ionwave #2026-05 Addendum 3

Boulder City Solicits Bids for East Airport Channel Relining with Synthetex Hydrotex System

The City of Boulder City, Nevada, is seeking bids for the East Airport Channel Relining project, managed by the Department of Public Works Engineering Division. - Government Buyer: - City of Boulder City, Department of Public Works Engineering Division - Key contacts: Jim Keane, P.E. (City Engineer), Brok Armantrout - OEM Highlight: - Synthetex is the specified Original Equipment Manufacturer (OEM) for the Hydrotex Fabric Formed Concrete system - Products and Materials Requested: - Hydrotex Uniform Section US600 Fabric Formed Concrete (6-inch thick), 130,728 SF - Manufactured by Synthetex; specified for channel relining - Nominal mass per unit area: 68 lb/SF; minimum hydraulic shear resistance: 27.6 lb/SF - Type II Aggregate Base, 328 CY - Controlled Low Strength Material (CLSM) Class I, 500 CY - Concrete Valley Gutter, 1 lump sum - Additional materials: fabric-formed cutoff walls, weepholes, storm drainpipe penetration connections, project signage, and dust palliative - Services Requested: - Site preparation (removals, clearing, grubbing) - Excavation and backfill for channel replacement - Permitting and inspection coordination - Mobilization and demobilization - Temporary traffic control and safety measures - Daily documentation (photographs, video) - Final cleanup and deficiency list completion - Record drawings and cooperation with utilities - Unique/Notable Requirements: - Strict use of Synthetex Hydrotex system for fabric-formed concrete lining - Compliance with Clark County prevailing wage rates - Work must be performed near Boulder City Municipal Airport and Southern Nevada Veterans Memorial Cemetery, requiring special operational protocols (e.g., equipment marking, work-hour restrictions) - Working in Waterways Permit required - Project is a demonstration of the Hydrotex system and may attract site visitors - 150 calendar day completion window from notice to proceed; one-year warranty period - Liquidated damages of $1,500 per day for late completion

Description

This solicitation is an Invitation for Bid issued by the City of Boulder City for the East Airport Channel Relining project. The work involves furnishing all labor, materials, and equipment to reline an existing deteriorating soil cement lined channel with 6-inch thick Hydrotex Fabric Formed Concrete. The scope includes removals, Type II aggregate base, erosion repairs with Controlled Low Strength Material (CLSM), fabric formed cutoff walls, weepholes, storm drainpipe penetration connections, valley gutter, and other related work as shown on the project plans. The project is located between the Boulder City Municipal Airport and the Southern Nevada Veterans Memorial Cemetery, with specific operational and access requirements due to proximity to these sites.

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