Pumped Wetland System Construction

Polk County is seeking bids to construct an approximately 10-acre pumped wetland system with two pools, a pump station, electrical service, piping, grading, and site restoration in Altoona, Iowa.

Polk County > Procurement and Purchasing Division


General
Open
724-2627
Nov 24, 2026 08:00 PM
Oct 21, 2026 04:11 PM
$1,288,194.00
Invitation for/to Bid (IFB/ITB)
Local
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Original Solicitation Links
Contact
shari.harvey@polkcountyiowa.gov
+15152863225
Submission Instructions
Description

Polk County seeks a contractor to construct an approximately 10-acre pumped wetland system consisting of two pools. Work includes excavation and grading, embankments, wetland and deep-pool outlets, a pump station with four submersible pumps, electrical service and controls, piping and water-control structures, erosion controls, seeding, and site restoration. The bid schedule includes quantities for these construction items, and the project plans and specifications provide detailed requirements. The project has two completion milestones: associated work in one area is due by April 30, 2027, and the remaining work by September 30, 2027. A 5% bid security is required with the bid; performance, payment, and maintenance bonds are required after award. The engineer’s estimate is $1,288,194.00.

Classification Codes
NAICS237990Other Heavy and Civil Engineering Construction
PSCY1NECONSTRUCTION OF WATER SUPPLY FACILITIES
Smart Codes
wetland constructionpump station installationearthwork and grading
Specifications
Supply & Service
Timeline
Nov 05, 2026 08:00 PM-Pre-Letting Conference (optional)
Attendance is recommended.
Nov 13, 2026 08:00 PM-Deadline for Questions
Nov 24, 2026 08:00 PM-Bid Submission Deadline
Dec 15, 2026-Anticipated Award Date
Apr 30, 2027-First Project Completion Deadline
Sep 30, 2027-Second Project Completion Deadline
Requirements
Required
  • Workers' Compensation
  • Employers' Liability — $500,000.00
  • Commercial General Liability — $1,000,000.00
  • Automobile Liability — $1,000,000.00
  • Excess Liability/Umbrella
Required
  • Bid Bond — 5%
  • Performance Bond — 100%
  • Payment Bond
  • Maintenance bond Bond
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