Davenport Ionwave #26-74

City of Davenport 2026 Roller Compacted Concrete Alley Reconstruction Program

The City of Davenport, Iowa, is seeking bids for its 2026 Roller Compacted Concrete Alley Program, focused on reconstructing two alleys with modern materials and ADA-compliant features. - Government Buyer: - City of Davenport, Iowa - Purchasing Division - Project Scope: - Removal and replacement of existing pavement (PCC and HMA) - Installation of full-depth aggregate stone base and optional geogrid/geofabric - Reconstruction with Portland Cement Concrete (PCC) alley approaches and Roller Compacted Concrete (RCC) pavement - Resetting utility features, driveway and sidewalk reconstruction, including ADA-compliant curb ramps - Topsoil, sodding, decorative rock, and comprehensive erosion control - Temporary traffic control and maintenance of solid waste collection during construction - Products/Materials Requested: - Roller Compacted Concrete (RCC) pavement (900 SY standard, 1570 SY jointed) - Portland Cement Concrete (PCC) for sidewalks, driveways, and curb ramps - Aggregate subbase (2470 SY), granular stabilization (390 TON), geogrid (620 SY) - Storm sewer manhole (60"), subdrain (820 LF), curb and gutter (562 LF removal, 460 LF new standard, 102 LF new sloped) - Traffic signs, steel tube posts, sod, topsoil, decorative rock - Services Requested: - Clearing and grubbing, intake adjustments, manhole removal, construction survey, SWPPP management, mobilization, erosion control, subdrain connections - Notable Requirements: - $40,000 owner contingency allowance - Strict insurance and bonding requirements - Compliance with Iowa SUDAS and city supplemental specifications - All work must be completed within 35 working days; liquidated damages for delays - ADA compliance for sidewalks and ramps - No specific OEMs or proprietary brands are named; materials must meet state and city standards - Opportunity is open to all qualified vendors; no set-aside restrictions

Description

The City of Davenport is soliciting bids for the 2026 Roller Compacted Concrete Alley Program, which involves improvements at two alleys in Davenport. The work includes removal of existing pavement, full depth aggregate stone base, geo fabric/grid if needed, reconstruction with PCC alley approaches and RCC pavement, utility feature resets, driveway replacements, sidewalk reconstruction with ADA ramps, topsoil, sodding, and erosion control. Bids must be submitted electronically through the City of Davenport e-bidding system by June 23, 2026. The project requires compliance with Iowa Statewide Urban and Design Specification (SUDAS) and city-specific supplemental specifications.

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