Dubuque County Civicplus #RT-C031(132)--9H-31

Heritage Trail Bridge #30 Replacement – Concrete Bridge Construction and Trail Work

This opportunity involves the replacement of Heritage Trail Bridge #30 in Dubuque County, Iowa. - Government Buyer: - Dubuque County Conservation Board (Peosta, IA) - Project Scope: - Demolition and removal of an existing 29.3x13.8-foot timber stringer bridge with timber abutments and piles - Construction of a new 35x12-foot, 10-degree skew concrete slab bridge on concrete abutments and steel piling - 62 feet of granular trail construction as part of the bridge replacement - Unit price contract covering excavation, concrete work, steel piling, sediment control, and related site work - Products/Materials Requested: - Structural concrete (bridge), reinforcing steel (epoxy coated), steel piles (HP 10X57), engineering fabric, granular and limestone surfacing, timber railing with steel posts, silt fence, sediment control devices, and other standard bridge construction materials - Services Requested: - Bridge demolition and replacement construction, including clearing, grubbing, excavation, mobilization, and sediment control - Notable Requirements: - Strict timeline: work cannot begin before project start date, with substantial and final completion deadlines enforced by $1,000/day liquidated damages for late completion - Funded by State Recreational Trails (SRT) funds; targeted small business (TSB) participation required - Compliance with Iowa laws, safety standards, and insurance/bonding requirements - No specific OEMs or proprietary product part numbers are mentioned; standard construction materials and services are specified - Bidding documents prepared by Origin Design Co. (Dubuque, IA)

Description

Sealed bids are requested for the construction of the Heritage Trail Bridge #30 Replacement Project by the Dubuque County Conservation Board. The project involves replacing an existing timber stringer bridge with a concrete slab bridge on concrete abutments and steel piling, including granular trail construction. Bids will be received until 1:00 pm local time on August 11, 2026, and will be publicly opened and read aloud. The project must commence no earlier than October 1, 2026, and be substantially complete by May 1, 2027, with final completion by May 15, 2027.

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