Cedar Rapids Ionwave #3318551-01 Addendum 1

Cedar Rapids 8th Avenue Bridge Replacement and Floodwalls Construction Opportunity

The City of Cedar Rapids is undertaking a large-scale infrastructure project to replace the 8th Avenue Bridge and construct new floodwalls along the Cedar River. - Government Buyer: - City of Cedar Rapids Public Works Department, Engineering Office - Scope of Work: - Demolition of the existing bridge and construction of a new cable-stayed river bridge - Installation of flood control systems, including floodwalls - Approach roadways, traffic improvements, sidewalks, trail reconstruction, utility reconstruction, and lighting - Bridge deck rehabilitation services, including overlay, expansion joint repair, cathodic protection system installation, and concrete sealing - Products and Materials Requested: - Extensive civil construction materials: concrete, steel, geogrid, PVC pipes, storm and sanitary sewer components, manholes, intakes, pavement, curb and gutter, traffic signals, sign panels, fencing, landscaping, and lighting poles - Specialized bridge components: structural steel, reinforcing steel (epoxy coated, stainless, low carbon chromium), stay cable system, post-tensioning tendons, modular expansion joint assemblies, disc bearing assemblies, and architectural lighting systems - Cathodic protection system materials: platinized niobium wire, rectifiers, PVC conduit and junction boxes, electrodes, macrocell rebar probes, and related electrical components - Quantities: - Hundreds of line items, ranging from single units (e.g., traffic signal, guard shack) to thousands of linear feet or square yards (e.g., pavement removal, reinforcing steel, sod installation) - Unique/Notable Requirements: - Cable-stayed bridge design with stay cable system and post-tensioning - Flood emergency response plan and implementation - Cathodic protection system for bridge deck longevity - Architectural lighting and aviation lighting for bridge - Vibration and noise monitoring during construction - Pre-bid conference (in-person and virtual options) - Bidders must be authorized to transact business in Iowa - OEMs and Vendors: - No specific OEMs or product brands are named, except for Landscape Forms (benches) - Estimated Contract Value: - Engineer's opinion of probable cost: $123,000,000 - Period of Performance: - Begins upon Notice to Proceed, lasting 1,250 calendar days (approx. 3.4 years) - Potential Competitors: - Major civil construction and bridge engineering firms with experience in cable-stayed bridges and flood control systems - Companies specializing in cathodic protection systems and architectural lighting

Description

This solicitation is a Request for Bid issued by the City of Cedar Rapids for the replacement of the 8th Avenue Bridge and construction of floodwalls at Cedar Rapids. The project scope includes demolition of the existing bridge, construction of a new cable-stayed river bridge crossing, flood control system components, approach roadways, traffic improvements, sidewalks, trail reconstruction, utility reconstruction, and lighting. The project is located from 1st Street SW to 3rd Street SE along 8th Avenue SE/SW and Diagonal Drive SW. The engineer's opinion of probable cost is $123,000,000, with an anticipated early start date upon Notice to Proceed in January or February 2027 and a final completion time of 1250 calendar days.

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