1344143-event.pdf
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- Attached to
- Mah751636C 25-15
- Solicitation number
- 009_RFB_WRBWL_CY25-15
- Issued by
- Lyon 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 Mahaska County. The project involves selective clearing, excavation, grading, riser outlet installation, tile and outlet structures, riprap placement, and seeding, with approximately 24,926 cubic yards of earthwork, 368 linear feet of tile installation, concrete and nyloplast structures, 310 tons of riprap, and 6.6 acres of seeding. The bid is scheduled to be opened on October 28, 2025, at 3:00 PM CDT, with a pre-bid conference on October 7, 2025, at 10:00 AM at the Oskaloosa Library. The estimated construction cost range is $250,000 to $350,000, with a requested delivery date of June 15, 2026.
The bid requires a 10% bid bond and mandates that bidders be registered with the Iowa Department of Inspections, Appeals & Licensing. The successful bidder will be required to furnish a Performance/Payment Bond equal to 100% of the contract price. Contract documents, including plans and specifications, are available through the Iowa Department of Agriculture website and the Iowa Department of Administrative Services. Bidders must submit questions in writing by October 14, 2025, at 3:00 PM, and the project engineer is Dan Jensen from Shive-Hattery Inc. Non-Iowa corporations must provide proof of authorization to do business in Iowa prior to contract execution.
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Text version
30 September 2025
Mah751636C 25-15 Construction of Nutrient Reduction Wetland
30 September 2025
Released 9/28/2025 9:30 PM CDT Type RFB - Request for Bids Open 9/30/2025 9:30 PM CDT Number 009_RFB_WRBWL_CY25-15 Close 10/28/2025 3:00 PM CDT Currency US Dollar
Sealed Until 10/28/2025 3:00 PM CDT
Contacts Tracy Bruun tracy.bruun@iowaagriculture.gov
Phone +1 515-344-6279
Commodity Codes None Added
30 September 202530 September 202530 September 202530 September 202530 September 202530 September 202530 September 202530 September 202530 September 2025 mailto:tracy.bruun@iowaagriculture.gov
Project ID: Mah751636C
Bid Number: 25-15
Project Counties: Mahaska
Project Engineer: Shive-Hattery, Dan Jensen P.E. djensen@shive-hattery.com
NOTICE TO BIDDERS
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, Tuesday, October 28, 2025. The bid opening, open to the public, will be held through IMPACS at 3:00 PM local time, Tuesday, October 28, 2025, when bids will be read aloud.
Interested parties may call in to hear the bid opening using the Microsoft Teams call-in number: 469-998-7627 141234436#,. 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, riser outlet, along with tile and outlet structures, riprap placement, and seeding. This project includes around 24,926 cubic yards of earthwork, 368 linear feet of various tile installation, a concrete and a nyloplast structures, 310 tons of riprap along with 25 cubic yards of grout and 6.6 acres of seeding. The estimated construction cost range for this project is $250,000 to $350,000.
A pre-bid conference will be held at 10:00 AM on October 7, 2025 at the Oskaloosa Library, 301 S Market ST Oskaloosa, IA, 52577, telephone: 641-673-0441. 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., Shiver-Hattery 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://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.bruun@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 Bruun, Division (tracy.Bruun@iowaagriculture.gov, or
(515) 344-6279. Printed copies of specifications and plans will be provided to the successful bidder.
Description https://iowaagriculture.gov/dscwq/requests-proposals https://iowaagriculture.gov/dscwq/requests-proposals https://das.iowa.gov/vendors/bidding-opportunities#vendor-bid-opportunities
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 Bruun, Division, tracy.bruun@iowaagriculture.gov. All other questions concerning other Contract Documents should be addressed to Tracy Bruun, Division, tracy.bruun@iowaagriculture.gov or 515-344-6279. To be considered in a final addendum, written questions must be received by 3:00 PM on October 14, 2025.
The Division reserves the right to reject any or all proposals and to waive technicalities and irregularities.
To register and learn about IMPACS, go to:
https://das.iowa.gov/state-employees/procurement/iowa-management-procurement-and-contracts-system-impacs
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://das.iowa.gov/state-employees/procurement/iowa-management-procurement-and-contracts-system-impacs
Required to View Event
Prerequisites Required to Enter Bid
30 September 2025
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.
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Buyer Attachments
1. 0-25-15_Mah751636C_Notice_to_Bidders.pdf
2. 1-25-15_Mah751636C_Construction_Contract_Book.pdf
3. 2-25-15_MAH751636C_Specs_6-19-25.pdf
4. 3-25-15_MAH751636C_Construction Plans_6-19-25.pdf
5. 4-25-15_Mah751636C_Appendix-I_Construction-Admin_Forms.pdf
6. 5-25-15_Mah751636C_DocCC_Proposal,Acknowledgement,Affidavit(Upload).pdf
7. 6-25-15_Mah751636C_DocEE_BidBond(Upload).pdf
8. 7-25-15_Mah751636C_DocCC_Schedule_of_Prices_WORKSHEET.pdf
30 September 202530 September 202530 September 202530 September 202530 September 202530 September 2025 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzQ0MTQzLTE4OTg3NzY3MzUwLTI1LTE1X01haDc1MTYzNkNfTm90aWNlX3RvX0JpZGRlcnMucGRm&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzQ0MTQzLTE4OTg3Nzg5MjYxLTI1LTE1X01haDc1MTYzNkNfQ29uc3RydWN0aW9uX0NvbnRyYWN0X0Jvb2sucGRm&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzQ0MTQzLTE4OTg3ODY5ODAyLTI1LTE1X01BSDc1MTYzNkNfU3BlY3NfNi0xOS0yNS5wZGY%3D&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzQ0MTQzLTE4OTg3ODc4MTkzLTI1LTE1X01BSDc1MTYzNkNfQ29uc3RydWN0aW9uIFBsYW5zXzYtMTktMjUucGRm&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzQ0MTQzLTE4OTg3ODc0Nzg0LTI1LTE1X01haDc1MTYzNkNfQXBwZW5kaXgtSV9Db25zdHJ1Y3Rpb24tQWRtaW5fRm9ybXMucGRm&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzQ0MTQzLTE4OTg3ODkyNjI1LTI1LTE1X01haDc1MTYzNkNfRG9jQ0NfUHJvcG9zYWxBY2tub3dsZWRnZW1lbnRBZmZpZGF2aXQoVXBsb2FkKS5wZGY%3D&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzQ0MTQzLTE4OTg3ODkyMzc2LTI1LTE1X01haDc1MTYzNkNfRG9jRUVfQmlkQm9uZChVcGxvYWQpLnBkZg%3D%3D&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xMzQ0MTQzLTE4OTg3OTAxMDI3LTI1LTE1X01haDc1MTYzNkNfRG9jQ0NfU2NoZWR1bGVfb2ZfUHJpY2VzX1dPUktTSEVFVC5wZGY%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 Liscensing. Is the Contractor registered with the Iowa Department of Inspections, Appeals, and Liscensing?
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 Please upload Proposal and Affidavit (Document CC), pages CC-1 through CC-3 here.
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 1 LS - Lump Sum 6/15/2026
CS-IA-001
P2 Structure & Channel Seeding 2.5 AC - Acre 6/30/2026
CS-IA-006
P3 Pasture Seeding 4.1 AC - Acre 6/30/2026
CS-IA-006
P4 Mobilzation & Demobilization 1 LS - Lump Sum 6/15/2026
CS-008
P5 Drain Tile Investigation & Removal 467 LF - Linear Foot 6/15/2026
CS-IA-009
P6 Excavation (General - P) 752 CY - Cubic Yard 6/15/2026
CS-IA-021
P7 Earthfill (General - P) 6,707 CY - Cubic Yard 6/15/2026
CS-IA-023
P8 Earthfill (General Dam - P) 5,442 CY - Cubic Yard 6/15/2026
CS-IA-023
P9 Earthfill (Dam Core - P) 2,772 CY - Cubic Yard 6/15/2026
CS-IA-023
P10 Earthfill (18"-Clay Liner Wetland Bottom, 2 lifts of 9" - P) 3,045 CY - Cubic Yard 6/15/2026
CS-IA-023
P11 Earthfill (Scarify and Recompact 9" layer of wetland bottom- P) 1,579 CY - Cubic Yard 6/15/2026
CS-IA-023
P12 Topsoil Placement (12" layer - P) 925 CY - Cubic Yard 6/15/2026
CS=IA-26
P13 Topsoil Placement (6" layer - P) 3,074 CY - Cubic Yard 6/15/2026
CS-IA-026
P14 Perforated HDPE Dual Wall, 4" 29 LF - Linear Foot 6/15/2026
CS-IA-046
P15 Perforated HDPE Dual Wall, 6" 14 LF - Linear Foot 6/15/2026
CS-IA-046
P16 Perforated HDPE Dual Wall, 8" 24 LF - Linear Foot 6/15/2026
CS-IA-046
P17 Perforated HDPE Dual Wall, 410 24 LF - Linear Foot 6/15/2026
CS-IA-046
P18 Plastic Riser, 12" Diam. 1 EA - Each 6/15/2026
CS-IA-045
P19 Modified SW-402 Water Control Structure 1 EA - Each 6/15/2026
CS-IA-031
P20 RCP Outlet, 42" Diam. 140 LF - Linear Foot 6/15/2026
CS-IA-031
P21 Nylopast Drawdown Riser, 42" Diam. 1 EA - Each 6/15/2026
CS-IA-045
P22 Non-perforated HDPE Dual Wall, 18" Diam. 37 LF - Linear Foot 6/15/2026
CS-IA-046
P23 PVC Tile Outlet - 6" x 20' 2 EA - Each 6/15/2026
CS-IA-045
P24 PVC Tile Outlet - 8" x 20' 1 EA - Each 6/15/2026
CS-IA-045
P25 PVC Tile Outlet - 10" x 20' 1 EA - Each 6/15/2026
CS-IA-045
P26 PVC Tile Outlet - 12" x 20' 1 EA - Each 6/15/2026
CS-IA-045
P27 Riprap, Class E 320 TN - Ton 6/15/2026
CS-IA-061
P28 Erosion Stone 85 TN - Ton 6/15/2026
CS-IA-061
P29 2" Clean Stone 25 CY - Cubic Yard 6/15/2026
CS-IA-061
P30 Concrete Grout 37 LF - Linear Foot 6/15/2026 30 September 202530 September 202530 September 202530 September 2025
CS-IA-005
P31 Pollution Control, Silt Fence 1,490 LF - Linear Foot 6/15/2026
CS-IA-062
P32 Field Fence with Gate 1,408 LF - Linear Foot 6/15/2026
IA-92
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Service Line Items Service Line Items
There are no Items added to this event.
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