2-26-02_Cal883229BN & BS_Notice-to-Bidders.pdf
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- Attached to
- Cal883229BN & BS (Calhoun)
- Solicitation number
- 0009-RFB-WRBLW-CY26-02
- Issued by
- Carroll County, Iowa
About this file
This Notice-to-Bidders document is issued by the Iowa Department of Agriculture & Land Stewardship, Division of Soil Conservation and Water Quality for two concurrent nutrient reduction wetland construction projects in Calhoun County, Iowa (Bid No. 26-2). The North project (Cal883229BN) requires approximately 31,200 cubic yards of earthwork, installation of dual solar-powered lift station pump systems, water control structures, 833 linear feet of polyethylene pipe, 92 linear feet of PVC forcemain, 177 linear feet of CMP drawdown pipe, 330 tons of riprap and stone, 560 square yards of turf reinforcing mat, 472 linear feet of silt fence, and 16.6 acres of seeding. The South project (Cal883229BS) involves approximately 10,300 cubic yards of earthwork with similar but smaller-scale components including 210 linear feet of polyethylene pipe, 27 linear feet of PVC forcemain, 114 linear feet of CMP drawdown pipe, 250 tons of riprap and stone, 395 square yards of turf reinforcing mat, 304 linear feet of silt fence, and 1.0 acre of seeding. Sealed bids are due by 3:00 PM on May 20, 2026, with public bid opening via IMPACS and Microsoft Teams conference call. A non-mandatory pre-bid conference is scheduled for 10:00 AM on April 24, 2026 at the Calhoun County Conservation Board in Rockwell City. Construction must commence within 14 days of the preconstruction meeting with a construction deadline of December 31, 2026, structure seeding deadline of May 15, 2027, and buffer seeding deadline of June 30, 2027. Written technical questions must be submitted by 3:00 PM on May 5, 2026 to be included in the final addendum.
The North project carries an estimated construction cost range of $375,000 to $475,000, while the South project ranges from $175,000 to $275,000, for a combined potential award value between $550,000 and $750,000. Bidders must submit a bid bond equal to ten percent of the bid amount and must be registered with the Iowa Department of Inspections, Appeals & Licensing. The successful contractor will be required to furnish a Performance/Payment Bond equal to one hundred percent of the contract price. Contract documents including plans and specifications are available through the Iowa Department of Agriculture website and the Department of Administrative Services bidding opportunities portal. Bidders may request to be added to the plan holders list to receive addenda and updated documents by contacting Tracy Blocker at the Division via telephone (515-344-6279) or email (tracy.Blocker@iowaagriculture.gov). No specific set-asides, disadvantaged enterprise restrictions, or incumbent vendor considerations are identified in the solicitation.
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Cal883229BN-North & BS-South Nutrient Reduction Wetland Project DOCUMENT AA
Bid No. 26-2 NOTICE-TO-BIDDERS
AA
NOTICE-TO-BIDDERS
Cal883229BN-North & BS-South Nutrient Reduction Wetland Project
Section 29, Township 88 North, Range 32 West
Calhoun County, Iowa
Sealed bids will be received by the Iowa Department of Agriculture & Land Stewardship, Division of Soil Conservation and
Water Quality (Division), via the Iowa Management of Procurement and Contracts System (IMPACS), until 3:00 PM local time, Wednesday, May 20, 2026. The bid opening, open to the public, will be held through IMPACS at 3:00 PM local time, on Wednesday, May 20, 2026, when bids will be read aloud. Interested parties may call in to hear the bid opening using the Microsoft Teams call-in number: +1 469-998-7627, 771541789#. Bids must be submitted on the appropriate bid forms provided and shall include a bid bond in the amount of ten percent (10%). Bidders must also be registered with the Iowa
Department of Inspections, Appeals & Licensing.
Cal883229BN-NORTH
This project is for a pumped nutrient reduction wetland, CAL883229BN. In general, the work involves, but is not limited to, selective clearing, excavation and grading, installation of lif stations with solar powered pumps, forcemain, tile, inlet risers, water control structures, drawdown pipes, riprap and seeding. This project includes a total of about 31,200 cubic yards of earthwork; installation of a water control structure, inlet risers, 833 linear feet (LF) of polyethylene pipe, a complete lift station with 2 solar powered pumps systems with battery, 92 LF of PVC SCH-80 forcemain, 177 LF of CMP drawdown pipe, 330 tons of riprap and clean stone, 560 square yards of turf reinforcing mat type 2B RECP, 472 LF of silt fence and 16.6 acres of seeding. The estimated total construction cost range for this project is $ 375,000 to $ 475,000.
Cal883229BS-SOUTH
This project is for a pumped nutrient reduction wetland, CAL883229BS. In general, the work involves, but is not limited to, selective clearing, excavation and grading, installation of lif stations with solar powered pumps, forcemain, tile, inlet risers, water control structures, drawdown pipes, riprap and seeding. This project includes a total of about 10,300 cubic yards of earthwork; installation of a water control structure, inlet riser, 210 linear feet (LF) of polyethylene pipe, a complete lift station with a solar powered pump system with battery, 27 LF of PVC SCH-80 forcemain, 114 LF of CMP drawdown pipe, 250 tons of riprap and clean stone, 395 square yards of turf reinforcing mat type 2B RECP, 304 LF of silt fence and 1.0 acres of seeding. The estimated total construction cost range for this project is $ 175,000 to $ 275,000.
Construction will commence within 14 of the preconstruction meeting, unless otherwise mutually agreed upon.
Construction deadline: 12/31/2026 Seeding deadline-structure: 05/15/2027 Seeding deadline-buffer: 06/30/2027
A pre-bid conference will be held at 10:00 AM, on April 24, 2026 at the Calhoun County Conservation Board, 1228 W High
St, Rockwell City 50579, telephone: 515-344-6279. Attendance at the pre-bid conference by prospective bidders is not mandatory but is encouraged.
The Plans and Construction Specifications governing the construction of the proposed improvements have been prepared by
Dan Jensen, P.E., Shive-Hattery, and are hereby made a part of this notice by reference and the proposed contract shall be executed in compliance therewith. Copies of the Contract Documents, including Plans, Construction Specifications, and Bid
Package, are available through the website links:
https://iowaagriculture.gov/dscwq/requests-proposals and https://das.iowa.gov/vendors/bidding-opportunities#vendor-bid-opportunities
• View Other Agency Hosted Solicitations
In order to be included on the plan holders list, which is required to be able to receive meeting minutes, addenda and an updated plan holders list, interested parties must make a written or verbal request to the Division by telephone: 515-344-
6279, or by e-mail: tracy.Blocker@iowaagriculture.gov. Bidders who attend and sign-in to the pre-bid conference will be added to the plan holders list. A printed copy of plans and construction specifications can be viewed by appointment by contacting Tracy Blocker, Division (tracy.Blocker@iowaagriculture.gov, or (515) 344-6279. Printed copies of specifications and plans will be provided to the successful bidder.
https://iowaagriculture.gov/dscwq/requests-proposals https://das.iowa.gov/vendors/bidding-opportunities#vendor-bid-opportunities
Cal883229BN-North & BS-South Nutrient Reduction Wetland Project DOCUMENT AA
Bid No. 26-2 NOTICE-TO-BIDDERS
AA
The successful bidder shall be required to furnish a Performance/Payment Bond in an amount equal to one hundred percent
(100%) of the contract price.
Questions concerning the Plans and Construction Specifications should be in writing and addressed to Dan Jensen, P.E., djensen@shive-hattery.com, and must copy Tracy Blocker, Division, tracy.Blocker@iowaagriculture.gov. All other questions concerning other Contract Documents should be addressed to Tracy Blocker, Division, tracy.Blocker@iowaagriculture.gov or 515-344-6279. To be considered in a final addendum, written questions must be received by 3:00 PM on May 5, 2026.
The Division reserves the right to reject any or all proposals and to waive technicalities and irregularities.
BIDDER LOGIN - https://solutions.sciquest.com/apps/Router/SupplierLogin?CustOrg=DASIowa
END OF DOCUMENT AA
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