1425981-event.pdf
PDF 476 KB Posted
- Attached to
- Cal883432B 26-08 (Calhoun)
- Solicitation number
- 009-RFB-WRBWL-CY26-08
- Issued by
- Carroll County, Iowa
About this file
This is a Request for Bids (RFB) issued by the Iowa Department of Agriculture & Land Stewardship, Division of Soil Conservation and Water Quality, for the construction of a nutrient reduction wetland in Calhoun County, Iowa. The project involves site stripping and preparation, excavation and grading, tied-concrete block mat placement, tile and outlet structure installation, riprap placement, and seeding across approximately 13,800 cubic yards of earthwork, 2,750 square feet of tied-concrete block mat, 769 linear feet of tile installation, 31 tons of riprap and erosion stone, and 4 acres of seeding. The bid opening is scheduled for 3:00 PM CDT on August 26, 2026, with bids received through the Iowa Management of Procurement and Contracts System (IMPACS). A pre-bid conference is scheduled for 10:00 AM on August 12, 2026, at Calhoun County Conservation 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. The project is divided into 24 line items with quantities specified in various units of measure and requested delivery dates of June 15, 2027, for most items.
The estimated construction cost range is $135,000 to $155,000. Bidders must be registered with the Iowa Department of Inspections, Appeals & Licensing and must submit bids on appropriate bid forms with a bid bond equal to ten percent (10%) of the bid amount. The successful bidder will be required to furnish a Performance/Payment Bond equal to one hundred percent (100%) of the contract price. Questions concerning plans and specifications must be submitted in writing to Spencer Pech, P.E., at ISG by 3:00 PM on August 19, 2026, for inclusion in a final addendum. All other contract document questions should be directed to Tracy Bruun at the Division. Non-Iowa corporations must provide proof of authorization from the Secretary of State to do business in Iowa prior to contract execution. The Division reserves the right to reject any or all proposals and waive technicalities and irregularities.
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Text version
05 August 2026
Cal883432B 26-08 (Calhoun) Constructed nutrient reduction wetland
05 August 2026
Open 8/4/2026, 10:00 AM CDT Type RFB - Request for Bids Close 8/26/2026, 3:00 PM CDT Number 009-RFB-WRBWL-CY26-08 Currency US Dollar
Sealed Until 8/26/2026, 3:00 PM CDT
Contacts Tracy Bruun tracy.blocker@iowaagriculture.gov
Phone +1 515-344-6279
Commodity Codes None Added
05 August 202605 August 202605 August 202605 August 202605 August 202605 August 202605 August 202605 August 202605 August 2026 mailto:tracy.blocker@iowaagriculture.gov
Project ID: Cal883432B
Bid Number: 26-08
Project Counties: Calhoun
Project Engineer: ISG, Spencer Pech, P.E.
The attached project is currently advertised for bid. Interested bidders may find general information about this project, as well as printable actual Contract Documents in PDF format. The general information is the same project description provided to the IDALS website, https://iowaagriculture.gov/dscwq/requests-proposals.
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
· 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
Description https://iowaagriculture.gov/dscwq/requests-proposals https://das.iowa.gov/vendors/bidding-opportunities#vendor-bid-opportunities
(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
The Division reserves the right to reject any or all proposals and to waive technicalities and irregularities.
If the successful bidder is a non-Iowa corporation, the bidder shall submit proof to the Division, prior to the execution of the contract, of authorization by the Secretary of State to do business in Iowa.
https://solutions.sciquest.com/apps/Router/SupplierLogin?CustOrg=DASIowa
Required to View Event
Prerequisites Required to Enter Bid
05 August 2026
1. Bidder shall read and make certifications of their Bid
2. Bidder shall read and authorize to release information for their Bid
3. Bidder Shall provide Bid Security, and upload Bid Security (Document EE) under 'Vendor Attachments'.
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Buyer Attachments
1. 1_26-08_Cal883432B_General Requirement.pdf
2. 2_26-08_Cal883432B_Noitce to Bidders.pdf
3. 3_26-08_Cal883432B_Doc CC_Propoasl-Acknowledgment-Affidavit (UPLOAD).pdf
4. 4_26-08_Cal883432B_Schedule of Price Worksheet.pdf
5. 5_26-08_Cal883432B_Doc EE_Bid_Bond (UPLOAD).pdf
6. 6_26-07_Cal883432B - Plans Feb 2025.pdf
7. 7_26-07_Cal883432B - Specification Feb 2025s.pdf
8. 8_26-08_Cal883432B_Appendix I - Construction & Admin Forms.pdf
05 August 202605 August 202605 August 202605 August 202605 August 202605 August 2026 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xNDI1OTgxLTIwNzM4NTk1NzQxXzI2LTA4X0NhbDg4MzQzMkJfR2VuZXJhbCBSZXF1aXJlbWVudC5wZGY%3D&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xNDI1OTgxLTIwNzM4NDgyODkyXzI2LTA4X0NhbDg4MzQzMkJfTm9pdGNlIHRvIEJpZGRlcnMucGRm&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xNDI1OTgxLTIwNzM4NDg1MzQzXzI2LTA4X0NhbDg4MzQzMkJfRG9jIENDX1Byb3BvYXNsLUFja25vd2xlZGdtZW50LUFmZmlkYXZpdCAoVVBMT0FEKS5wZGY%3D&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xNDI1OTgxLTIwNzM4NTk1ODU0XzI2LTA4X0NhbDg4MzQzMkJfU2NoZWR1bGUgb2YgUHJpY2UgV29ya3NoZWV0LnBkZg%3D%3D&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xNDI1OTgxLTIwNzM4NDg5ODk1XzI2LTA4X0NhbDg4MzQzMkJfRG9jIEVFX0JpZF9Cb25kIChVUExPQUQpLnBkZg%3D%3D&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xNDI1OTgxLTIwNzM4NDg4ODg2XzI2LTA3X0NhbDg4MzQzMkIgLSAgUGxhbnMgIEZlYiAyMDI1LnBkZg%3D%3D&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xNDI1OTgxLTIwNzM4NDk4NjQ3XzI2LTA3X0NhbDg4MzQzMkIgLSBTcGVjaWZpY2F0aW9uICAgRmViIDIwMjVzLnBkZg%3D%3D&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xNDI1OTgxLTIwNzM4NTAwMjI4XzI2LTA4X0NhbDg4MzQzMkJfQXBwZW5kaXggSSAtIENvbnN0cnVjdGlvbiAmIEFkbWluIEZvcm1zLnBkZg%3D%3D&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9
Questions Required Questions
Group 1:
Instructions:
1.1 Contractors are required to be registered with the Iowa Department of Inspections, Appeals, and Licensing. Is the Contractor registered with the Iowa Department of Inspections, Appeals, and Licensing?
1.2 I have reviewed the documents under the “Buyer Attachments” section and acknowledged on page 2 of Document CC below, any and all addenda (if any) associated with this project.
1.3 I have uploaded the Proposal and Affidavit (Document CC), pages CC-1 through CC-3 under 'Vendor Attachments'. The Schedule of Prices associated with this project shall be entered in the 'Items' section of this project.
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Product Line Items Product Line Items
1.
# Item Name, Commodity Code, Description Allow
Alternates Qty. UOM Requested Delivery
P1 Site Stripping and Preparation (Wetland) 1 LS - Lump Sum 6/15/2027
CS-IA-001
P2 Site Stripping and Preparation (Wasting) 1 LS - Lump Sum 6/15/2027
CS-IA-001
P3 Other - Pollution Control 1 LS - Lump Sum 6/15/2027
CS-IA-005
P4 Structure, waterway & channel seeding 1 AC - Acre 6/30/2027
CS-IA-006
P5 Buffer Seeding 3 AC - Acre 9/15/2027
CS-IA-006
P6 Mobilzation & Demobilization 1 LS - Lump Sum 6/15/2027
CS-008
P7 Drain Tile Investigation 2 HR - Hour 6/15/2027
CS-IA-009
P8 Connecting to Existing Tile 1 EA - Each 6/15/2027
CS-IA-009
P9 Cap Existing Tile 1 EA - Each 6/15/2027
P10 Excavation (General) 4,269 CY - Cubic Yard 6/15/2027
CS-IA-021
P11 Earthfill (General) 2,551 CY - Cubic Yard 6/15/2027
CS-IA-023
P12 Earthfill (Wasting) 1,889 CY - Cubic Yard 6/15/2027
CS-IA-023
P13 Drainfill 13 TN - Ton 6/15/2027
CS-IA-024
P14 Topsoil Placement 5,174 CY - Cubic Yard 6/15/2027
CS-IA-026
P15 Tied Concrete Block Mat 2,750 SF - Square Feet 6/15/2027
CS-IA-031
P16 Water Control Structure Assembly 1 EA - Each 6/15/2027
CS-IA-045
P17 Trench Drain 1 EA - Each 6/15/2027
CS-IA-046
P18 Corrugated Polyethylene Pipe (Non-perforated): 12" 581 LF - Linear Foot 6/15/2027
CS-IA-046
P19 Corrugated Polyethylene Pipe (Non-perforated): 10" 148 LF - Linear Foot 6/15/2027
CS-IA-046
P20 Slotted 18-inch CMP Riser Structure 1 EA - Each 6/15/2027
CS-IA-051
P21 CMP Tile Outlets with Animal Guard" 15" x 20ft 1 EA - Each 6/15/2027
CS-IA-051
P22 CMP Tile Outlets with Animal Guard" 12" x 20ft 1 EA - Each 6/15/2027
CS-IA-051
P23 Riprap. IDOT Class E 15 TN - Ton 6/15/2027
CS-IA-061
P24 Erosion Stone 16 TN - Ton 6/15/2027
CS-IA-061
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Service Line Items Service Line Items
There are no Items added to this event.
05 August 202605 August 202605 August 2026
File details come from the government source that posted it. Updated .