New Wine Park Culvert Replacement

Dubuque County is seeking sealed bids for replacement of a 60-inch corrugated metal pipe culvert at New Wine Park, including roadway excavation, backfill, concrete, asphalt paving, erosion control, and traffic control.

Dubuque County > Conservation Board


General
Open
Sep 22, 2026 01:00 PM
Aug 31, 2026 12:00 AM
5 months
Request for Proposal (RFP)
Local
Ask AI about this solicitation
Contact
conservationservice@dubuquecounty.us
+15635566745
13606 Swiss Valley Road, Peosta, IA, USA
Submission Instructions
Mail
Office of the County Conservation Department of Dubuque County, Iowa, Swiss Valley Nature Center, 13606 Swiss Valley Rd, Peosta, IA 52068
Bidding Proposal
Description

Dubuque County is soliciting sealed bids for the New Wine Park CMP Culvert Replacement Project. The work includes clearing and grubbing; subgrade stabilization; modified subbase; hot-mix asphalt base and surface courses; asphalt binder; flooded backfill; roadway pipe-culvert excavation; structural concrete; reinforcing steel; installation of 70 linear feet of a 60-inch-diameter corrugated metal pipe roadway culvert; revetment; pavement removal; safety closures; traffic control; mobilization; and perimeter slope and sediment control. Winter work is not allowed. Work may not begin before November 1, 2026; if work begins before winter shutdown, the road must be opened during the winter. The contractor may finish-grade the road with road stone to open it before winter shutdown and complete hot-mix asphalt work in the spring. The proposal requires a proposal guaranty, and the successful bidder must furnish a performance bond equal to the contract award and a certificate of insurance within 15 days after award approval. The contract includes a $600-per-day liquidated-damages rate and requires completion by April 5, 2027.

Classification Codes
NAICS237310Highway, Street, and Bridge Construction
PSCY1LBCONSTRUCTION OF HIGHWAYS, ROADS, STREETS, BRIDGES, AND RAILWAYS
Smart Codes
culvert replacementroadway constructiontraffic control
Specifications
Supply & Service
Timeline
Aug 31, 2026-Publication Date
Sep 22, 2026-Bid Submission Deadline and Opening
Sep 24, 2026-Dubuque County Conservation Board Meeting (optional)
The lowest responsible bidder will be considered for approval at 4:00 p.m.
Nov 1, 2026-Work Start Date
Apr 5, 2027-Completion Date
Requirements
Required
Required
  • Bid Bond — $1,000.00
  • Performance Bond — 1%
Location
Local Preference:Local Preference
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