PROSPECTIVE BIDDERS:
Please note that accessing the documents from this webpage does not add you to our plan holders list.
You must be added to the plan holders list to receive meeting minutes and addenda prior to submitting a bid.
To be added to the plan holders list, please follow the instructions in the Notice to Bidders document.
Water Quality Initiative Projects
Ag Drainage Well Closure-Wetland
None at this time.
Urban Conservation Projects
Pre-Applications for Urban Conservation Projects (Open Sept. 2-Nov.21, 2025)
Nutrient Reduction Strategy Targeted Watershed Implementation
Nutrient Reduction Strategy Demonstration Projects
Proposals are due NO LATER THAN 4:30 PM, FRIDAY, NOVEMBER 14, 2025
Nutrient Reduction Strategy Planning and Development Projects
None at this time.
Division Engineering Prequalification
The Division contracts several types of professional engineering consulting, land surveying, and design services, and maintains a list of prequalified firms or individuals interested in performing such services. Prequalification is not an award and does not create an obligation on behalf of the Division. Prequalified firms and individuals will receive a Request for Proposal (RFP) whenever the Division requires the type(s) of services for which they are prequalified. Service types included for prequalification at this time are:
- Abandoned Coal Mine Land Reclamation engineering and design services for both traditional and natural landform designs;
- Engineering design and land surveying services for nutrient reduction infrastructure practice types including:
- Wetlands (traditional breakpoint, flood plain, oxbow, tile zone, and pumped);
- Edge-of-field practices (saturated buffers, woodchip bioreactors, drainage water management); and
- Grade stabilization structures - Engineering design review services for urban conservation practices; and
- Update and review of the Iowa Stormwater Management Manual chapters
If you are interested in submitting a Statement of Qualifications (SOQ) for any of the above service types, please submit a Letter of Interest (LOI) to Tracy Bruun at tracy.bruun@iowaagriculture.gov. Letters of interest must include the firm or individual’s office location, contact information, and which types of services they are interested in submitting qualifications for. If you have previously requested an SOQ review and were not considered qualified, your LOI must also include the date of previous SOQ submission(s) and a list of changes that address the previously unmet requirement(s). Upon receipt of an LOI, interested firms and individuals will be sent the full SOQ requirements and instructions.
EOF Batch and Build Projects
N. Raccoon 2025 Batch and Build Edge-of-Field Project
Calhoun and Sac County, Iowa
BID NO. EOF 2025-02
- Doc AA (Notice to Bidders)
- Doc CC 1-3 (Proposal and Schedule of Prices)
- Doc EE (Bid Bond)
- Construction Specifications
- Construction Plans
- Bid Book
- Pre-Bid Minutes, Meeting Materials, and Q&A
Nutrient Reduction Wetland Projects
Bid Tabs
| Bid # | Project ID | Bid Opening | WL type |
|---|---|---|---|
| 24-07 | Sto852118B | 01/07/25 | Break pt; sheet pile; tile |
| 25-01 | Wri912431B | 03/05/25 | Oxbow in flood plain |
| 25-02 | Cal883416C | 03/05/25 | Break pt in flood plain; toe wall; pump |
| 25-03 | Kos952921C | 03/05/25 | Break pt; sheet pile; tile; CRP |
| 25-04 | Kos953027D | 03/05/25 | Break pt; pump; wattles; CRP; DWR |
| 25-05 | Sio943414A | 05/29/25 | Break pt in flood plain; CRP |
| 25-06 | Chi941415B | 05/29/25 | Break pt in flood plain; sheet pile |
| 25-07 | Winn980921A | 05/29/25 | Break pt; sheet pile, tile |
| 25-08 | How991129B | 09/11/25 | Break pt with toe wall outlet |
| 25-09 | Kos841824D | 09/28/25 | Break pt, sheet piling, tile, WCS |
| 25-10 | Kos9525810D | 09/28/25 | Break pt, tile, SW-401 |
| 25-11 | Kos9962907A | 09/28/25 | Break pt, sheet piling, tile, manhole, pump |
NOTICE: Bids must be entered through IMPACS. We are no longer taking in-person bids.
Bid 25-12 Nutrient Reduction Wetland Cal883301A & Cal883220A
Pre-Bid Meeting September 23, 2025- see Notice to Bidders for information
Bids DUE: 3:00 PM October 8, 2025 via IMPACS ONLY https://das.iowa.gov/vendors/bidding-opportunities
Bid opening October 08, 2025 at 3:10
Bid-Construction Book Requirements
Cal883301A_Combined Specifications Signed
Cal883220A_Combined Specifications Signed
Appendix 1 Construction & Admin Forms
Bid 25-13 Nutrient Reduction Wetland Car8533313A
Pre-Bid Meeting September 23, 2025- see Notice to Bidders for information
Bids DUE: 3:00 PM October 8, 2025 via IMPACS ONLY https://das.iowa.gov/vendors/bidding-opportunities
Bid opening October 08, 2025 at 3:15
- Notice to Bidders
- Affidavit & Acknowledgement Doc CC - revised 10/02/25 (upload)
- Proposal of Prices Doc CC - Worksheet only
- Bid Bond Doc EE (upload)
- Bid Book General Requirements
- Final Specifications 11-18-2024
- Final Plans 10-03-2025
- Appendix 1 Construction & Admin Forms
- Construction Monitoring Plan
- Design Report 10-29-2024
- Addendum 1 - 10-03-25 and Pre-Bid Meeting Minutes
Bid 25-15 Nutrient Reduction Wetland Mah751636C
Pre-Bid Meeting October 7, 2025
Bids DUE: 3:00 PM October 28, 2025 via IMPACS ONLY https://das.iowa.gov/vendors/bidding-opportunities
Bid opening October 28, 2025 at 3:00
see Notice to Bidders for more information
Appendix I - Construction Admin Forms
Doc CC Proposal Acknowledgement Affidavit
Bid 25-16 Nutrient Reduction Wetland Gre853019D
Pre-Bid Meeting October 9, 2025
Bid DUE: 3:00 PM October 28, 2025 via IMPACS ONLY
Bid Opening: 3:00 PM October 28, 2025
See Notice to Bidders for more information
Document CC Proposal Acknowlegement Affidavit
Appendix I Construction & Admin Forms
Document CC Schedule of Prices
Bid 25-14 Nutrient Reduction Wetland Flo971523B
Pre-Bid Meeting October 14, 2025
Bid DUE: 3:00 PM October 28, 2025 via IMPACS ONLY
Bid Opening: 3:00 PM October 28, 2025
See Notice to Bidders for more information
Document CC Proposal Acknowledgement Affidavit
Appendix I Construction & Admin Forms
Document CC Schedule of Prices
Abandoned Mine Land Projects
None at this time.