1384913-event.pdf
PDF 663 KB Posted
- Attached to
- Cal883229BN & BS (Calhoun)
- Solicitation number
- 0009-RFB-WRBLW-CY26-02
- Issued by
- Carroll County, Iowa
About this file
This is a Request for Bids (RFB) document issued by the Iowa Department of Agriculture & Land Stewardship, Division of Soil Conservation and Water Quality for the construction of two nutrient reduction wetlands in Calhoun County. Bid Number 26-02 solicits construction services for two separate but concurrent projects: Cal883229BN (North), a pumped nutrient reduction wetland with approximately 31,200 cubic yards of earthwork, and Cal883229BS (South), a pumped nutrient reduction wetland with approximately 10,300 cubic yards of earthwork. Both projects include excavation, grading, lift station installation with solar-powered pumps, water control structures, riprap, seeding, and related infrastructure. The North project includes 16.6 acres of seeding and the South project includes 1.0 acre of seeding. Sealed bids are due by 3:00 PM CDT on May 20, 2026, with the public bid opening occurring the same day via IMPACS and Microsoft Teams. 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, Iowa. Construction must commence within 14 days of the preconstruction meeting, with a construction deadline of December 31, 2026, seeding deadline for structures by May 15, 2027, and buffer seeding deadline of June 30, 2027.
Bidders must be registered with the Iowa Department of Inspections, Appeals & Licensing and submit a bid bond equal to ten percent (10%) of the bid amount. The estimated total construction cost range for the North project is $375,000 to $475,000, and for the South project is $175,000 to $275,000. 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 Secretary of State to do business in Iowa prior to contract execution. Written questions regarding plans and specifications must be submitted to the Project Engineer, Dan Jensen at Shive-Hattery, by 3:00 PM on May 5, 2026 to be included in a final addendum. Bidders must register with the Iowa Management of Procurement and Contracts System (IMPACS) to submit bids and can access contract documents through the Iowa Department of Agriculture website and the Department of Administrative Services bidding opportunities portal.
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Text version
16 April 2026
Cal883229BN & BS (Calhoun) Construction of two nutrient reduction wetlands, one contract.
16 April 2026
Released 4/15/2026 3:00 PM CDT Type RFB - Request for Bids Open 4/17/2026 12:00 AM CDT Number 0009-RFB-WRBLW-CY26-02 Close 5/20/2026 3:00 PM CDT Currency US Dollar
Sealed Until 5/20/2026 3:00 PM CDT
Contacts Tracy Bruun tracy.blocker@iowaagriculture.gov
Phone +1 515-344-6279
Commodity Codes None Added
16 April 202616 April 202616 April 202616 April 202616 April 202616 April 202616 April 202616 April 202616 April 2026 mailto:tracy.blocker@iowaagriculture.gov
Project ID: Cal883229B North & South
Bid Number: 26-02
Project Counties: Calhoun
Project Engineer: Dan Jensen, P.E., Shive- Hattery djensen@shive-hattery.com
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, 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
Description https://iowaagriculture.gov/dscwq/requests-proposals 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.
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
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://iowaagriculture.gov/dscwq/requests-proposals https://das.iowa.gov/vendors/bidding-opportunities#vendor-bid-opportunities https://solutions.sciquest.com/apps/Router/SupplierLogin?CustOrg=DASIowa
Required to View Event
Prerequisites Required to Enter Bid
16 April 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. 1-26-02_Cal883229BN & BS_General_Requirements.pdf
2. 2-26-02_Cal883229BN & BS_Notice-to-Bidders.pdf
3. 3-26-02_Cal883229BN & BS_Proposal-Affidavit_Document-CC (UPLOAD).pdf
4. 3-26-02_Cal883229BN & BS_Schedule of Prices-CC (Worksheet).pdf
5. 4-26-02_Cal883229BN & BS_Bid_Bond_DocEE (UPLOAD).pdf
6. 5-26-02_CAL883229BN &BS_Specifications_1-10-2025.pdf
7. 6-26-02_CAL883229N & BS _FinalPlans_1-10-2025.pdf
8. 7-26-02_Cal883229BN & BS_Appendix_I.pdf
9. 8-26-02_CAL883229BN-S_H&H Report.pdf
. 9-26-02_CAL883229BN-S_QA QC_Plan.pdf
16 April 202616 April 202616 April 202616 April 202616 April 202616 April 2026 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzg0OTEzLTIwMTAwNzkyMTAxLTI2LTAyX0NhbDg4MzIyOUJOICYgQlNfR2VuZXJhbF9SZXF1aXJlbWVudHMucGRm&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzg0OTEzLTIwMTAwNzkxNjcyLTI2LTAyX0NhbDg4MzIyOUJOICYgQlNfTm90aWNlLXRvLUJpZGRlcnMucGRm&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzg0OTEzLTIwMTAwNzk0NzEzLTI2LTAyX0NhbDg4MzIyOUJOICYgQlNfUHJvcG9zYWwtQWZmaWRhdml0X0RvY3VtZW50LUNDIChVUExPQUQpLnBkZg%3D%3D&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzg0OTEzLTIwMTAwNzk3MTczLTI2LTAyX0NhbDg4MzIyOUJOICYgQlNfU2NoZWR1bGUgb2YgUHJpY2VzLUNDIChXb3Jrc2hlZXQpLnBkZg%3D%3D&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzg0OTEzLTIwMTAwODAxNjQ0LTI2LTAyX0NhbDg4MzIyOUJOICYgQlNfQmlkX0JvbmRfRG9jRUUgKFVQTE9BRCkucGRm&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzg0OTEzLTIwMTAwODAyNjI1LTI2LTAyX0NBTDg4MzIyOUJOICZCU19TcGVjaWZpY2F0aW9uc18xLTEwLTIwMjUucGRm&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzg0OTEzLTIwMTAwODE2MDM2LTI2LTAyX0NBTDg4MzIyOU4gJiBCUyBfRmluYWxQbGFuc18xLTEwLTIwMjUucGRm&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzg0OTEzLTIwMTAwODEyMzg3LTI2LTAyX0NhbDg4MzIyOUJOICYgQlNfQXBwZW5kaXhfSS5wZGY%3D&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzg0OTEzLTIwMTAwODIxNjc4LTI2LTAyX0NBTDg4MzIyOUJOLVNfSCZIIFJlcG9ydC5wZGY%3D&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzg0OTEzLTIwMTAwODIxODE5LTI2LTAyX0NBTDg4MzIyOUJOLVNfUUEgUUNfUGxhbi5wZGY%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. Cal883229BN (North) # Item Name, Commodity Code, Description Allow
Alternates Qty. UOM Requested Delivery
P1 Site Stripping and Preparation 1 LS - Lump Sum 12/31/2026
CS-IA-001
P2 Structure & Channel Seeding 1.5 AC - Acre 5/15/2027
CS-IA-006
P3 Buffer Seeding 15.1 AC - Acre 6/30/2027
CS-IA-006
P4 Mobilization & Demobilization 1 LS - Lump Sum 12/31/2026
CS-008
P5 Drain Tile Investigation & Removal 2,270 LF - Linear Foot 12/31/2026
CS-IA-009
P6 Excavation (General - P) 6,176 CY - Cubic Yard 12/31/2026
CS-IA-021
P7 Earthfill (General - P) 6,176 CY - Cubic Yard 12/31/2026
CS-IA-023
P8 Earthfill (18"-Clay Liner Wetland Bottom, 2 lifts of 9" - P) 9,841 CY - Cubic Yard 12/31/2026
CS-IA-023
P9 Earthfill (Scarify and Recompact 9" layer of wetland bottom- P) 4,494 CY - Cubic Yard 12/31/2026
CS-IA-023
P10 Topsoil Placement (6" layer - P) 4,535 CY - Cubic Yard 12/31/2026
CS-IA-026
P11 PVC Forcemain, 8" Schedule 80 92 LF - Linear Foot 12/31/2026
CS-IA-045
P12 Perforated Polyethylene Pipe with porous backfill, 4" dam. 279 LF - Linear Foot 12/31/2026
CS-IA-046
P13 Non-perforated Polyethylene Pipe, 6" diam. 187 LF - Linear Foot 12/31/2026
CS-IA-046
P14 SDR 26 PVC, 24" diam. 367 LF - Linear Foot 12/31/2026
CS-IA-046
P15 Riser Inlet Structure, 24" 1 EA - Each 12/31/2026
CS-IA-051
P16 CMP Water Control Structure, 48" 1 EA - Each 12/31/2026
CS-IA-051
P17 Aluminized CMP, 18" diam, 14 GA 177 LF - Linear Foot 12/31/2026
CS-IA-051
P18 CMP Outlet Pipes, 8" x 20' 2 EA - Each 12/31/2026
CS-IA-051
P19 Riprap, Class E 150 TN - Ton 12/31/2026
CS-IA-061
P20 Clean Stone, 1" 150 TN - Ton 12/31/2026
CS-IA-061
P21 Clean Stone, 2" 30 TN - Ton 12/31/2026
CS-IA-061
P22 Pollution Control, Silt Fence 472 LF - Linear Foot 12/31/2026
CS-IA-005
P23 Pollution Control, Type 2B RECP 560 LF - Linear Foot 12/31/2026
CS-IA-005
P24 Solar, Batter, Electrical & Control 2 EA - Each 12/31/2026
Division 26
P25 Pump Station 2 EA - Each 12/31/2026
Div 26 & 33
2. Cal883229BS (South) # Item Name, Commodity Code, Description Allow
Alternates Qty. UOM Requested Delivery
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P1 Site Stripping and Preparation 1 LS - Lump Sum 12/31/2026
CS-IA-001
P2 Structure & Channel Seeding 1 AC - Acre 5/15/2027
CS-IA-006
P3 Buffer Seeding 1 AC - Acre 6/30/2027
CS-IA-006
P4 Mobilization & Demobilization 1 LS - Lump Sum 12/31/2026
CS-008
P5 Drain Tile Investigation & Removal 65 LF - Linear Foot 12/31/2026
CS-IA-009
P6 Excavation (General - P) 1,056 CY - Cubic Yard 12/31/2026
CS-IA-021
P7 Earthfill (General - P) 585 CY - Cubic Yard 12/31/2026
CS-IA-023
P8 Earthfill (General Dam - P) 579 CY - Cubic Yard 12/31/2026
CS-IA-023
P9 Earthfill (Dam Core - P) 191 CY - Cubic Yard 12/31/2026
CS-IA-023
P10 Earthfill (18"-Clay Liner Wetland Bottom, 2 lifts of 9" - P) 2,046 CY - Cubic Yard 12/31/2026
CS-IA-023
P11 Earthfill (Scarify and Recompact 9" layer of wetland bottom- P) 4,607 CY - Cubic Yard 12/31/2026
CS-IA-023
P12 Topsoil Placement (6" layer - P) 787 CY - Cubic Yard 12/31/2026
CS-IA-026
P13 Topsoil Placement (12" layer - P) 433 CY - Cubic Yard 12/31/2026
CS-IA-026
P14 PVC Forcemain, 8" Schedule 80 27 LF - Linear Foot 12/31/2026
CS-IA-045
P15 SDR 26 PVC, 24" diam. 210 LF - Linear Foot 12/31/2026
CS-IA-046
P16 Riser Inlet Structure, 24" 1 EA - Each 12/31/2026
CS-IA-051
P17 CMP Water Control Structure, 48" 1 EA - Each 12/31/2026
CS-IA-051
P18 Aluminized CMP, 18" diam, 14 GA 114 LF - Linear Foot 12/31/2026
CS-IA-051
P19 Riprap, Class E 150 TN - Ton 12/31/2026
CS-IA-061
P20 Clean Stone, 1" 70 TN - Ton 12/31/2026
CS-IA-061
P21 Clean Stone, 2" 30 TN - Ton 12/31/2026
CS-IA-061
P22 Pollution Control, Silt Fence 304 LF - Linear Foot 12/31/2026
CS-IA-005
P23 Pollution Control, Type 2B RECP 395 LF - Linear Foot 12/31/2026
CS-IA-005
P24 Solar, Batter, Electrical & Control 1 EA - Each 12/31/2026
Division 26
P25 Pump Station 1 EA - Each 12/31/2026
Div 26 & 33
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Service Line Items Service Line Items
There are no Items added to this event.
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File details come from the government source that posted it. Updated .