2_26-08_Cal883432B_Notice to Bidders.pdf
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- Attached to
- Cal883432B 26-08 (Calhoun)
- Solicitation number
- 009-RFB-WRBWL-CY26-08
- Issued by
- Carroll County, Iowa
About this file
This is a Notice to Bidders issued by the Iowa Department of Agriculture & Land Stewardship, Division of Soil Conservation and Water Quality, for the Cal883432B Nutrient Reduction Wetland Project located in Section 32, Township 88 North, Range 34 West in Calhoun County, Iowa. The project encompasses construction of a nutrient reduction wetland involving selective clearing, excavation and grading, tied-concrete block mat placement (2,750 square feet), tile and outlet structure installation (769 linear feet), riprap and erosion stone placement (31 tons), and seeding of 4 acres across approximately 13,800 cubic yards of earthwork. Sealed bids must be submitted through the Iowa Management of Procurement and Contracts System (IMPACS) by 3:00 PM local time on Wednesday, August 26, 2026, with public bid opening held simultaneously via Microsoft Teams. A pre-bid conference is scheduled for 10:00 AM on August 12, 2026, at the Calhoun County Conservation office in Rockwell City, Iowa; attendance is encouraged but not mandatory. Construction must commence within 7 days of the preconstruction meeting, with a construction deadline of November 30, 2026, and seeding deadlines of December 15, 2026. Written questions concerning plans and specifications must be submitted by 3:00 PM on August 19, 2026, for inclusion in a final addendum. Interested parties must request to be added to the plan holders list through Tracy Blocker at tracy.blocker@iowaagriculture.gov or 515-344-6279.
The estimated construction cost range for this project is $135,000 to $155,000. Bidders must submit a bid bond equal to ten percent (10%) of the bid amount and must be registered with the Iowa Department of Inspections, Appeals & Licensing. The successful bidder will be required to furnish a Performance/Payment Bond equal to one hundred percent (100%) of the contract price. Non-Iowa corporations must provide proof of authorization from the Iowa Secretary of State to do business in Iowa prior to contract execution. Plans and Construction Specifications have been prepared by ISG Inc. and are available through the Iowa Department of Administration's website. Technical questions regarding plans and specifications should be directed to Spencer Pech, P.E., at ISG (spencer.pech@isginc.com or 563-920-5758), while all other contract document questions should be directed to Tracy Blocker at the Division (tracy.blocker@iowaagriculture.gov or 515-344-6279). The Division reserves the right to reject any or all proposals and to waive technicalities and irregularities.
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Cal883432B Nutrient Reduction Wetland Project DOCUMENT AA Bid No. 26-08 NOTICE-TO-BIDDERS
AA
NOTICE-TO-BIDDERS
Cal883432B Nutrient Reduction Wetland Project Section 32, Township 88 North, Range 34 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, August 26, 2026. The bid opening, open to the public, will be held through IMPACS at 3:00 PM local time, on Wednesday, August 26, 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,,352050218#. 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.
In general, the work involves, but is not limited to, selective clearing, excavation and grading, tied-concrete block mat placement, along with tile and outlet structures, riprap placement, and seeding. This project includes around 13,800 cubic yards of earthwork, 2,750 square feet of tied-concrete block mat, 769 linear feet of various tile installation, a water control structure, 31 tons of riprap and erosion stone, 4 acres of seeding. The estimated construction cost range for this project is $135,000 to $155,000.
Construction will commence within 7 days of the preconstruction meeting, unless otherwise mutually agreed upon.
Construction deadline: 11/30/2026 Seeding deadline-buffer: 12/15/2026 (Buffer Seeding must be done within seeding period)
Seeding deadline-structure: 12/15/2026 (Structure Seeding must be done within seeding period)
A pre-bid conference will be held at 10:00 AM, on August 12, 2026 at the Calhoun County Conservation, 905 W High St, Rockwell City, IA 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 ISG Inc, 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://das.iowa.gov/vendors/bidding-opportunities#vendor-bid-opportunities
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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.
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 Spencer Pech, P.E., ISG, spencer.pech@isginc.com , 563-920-5758 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 August 19, 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
https://das.iowa.gov/vendors/bidding-opportunities#vendor-bid-opportunities https://solutions.sciquest.com/apps/Router/SupplierLogin?CustOrg=DASIowa
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