26-02 Cal883229BN & BS (Calhoun)

STATE OF IOWA
DEPARTMENT OF AGRICULTURE AND LAND STEWARDSHIP
DIVISION OF SOIL CONSERVATION AND WATER QUALITY
Cal883229BN-North & BS-South NUTRIENT
REDUCTION WETLAND PROJECT
CONSTRUCTION CONTRACT
BID NO. 26-2
SECTION 29, TOWNSHIP 88 NORTH, RANGE 32 WEST
CALHOUN COUNTY, IOWA
PREPARED FOR: IOWA DEPARTMENT OF AGRICULTURE & LAND STEWARDSHIP
DIVISION OF SOIL CONSERVATION AND WATER QUALITY
HOOVER STATE OFFICE BUILDING
1305 EAST WALNUT STREET
DES MOINES, IOWA 50319
PREPARED BY: SHIVE-HATTERY
4125 WESTOWN PARKWAY, SUITE 100
WEST DES MOINES, IA 50266
515-233-8104
April 2026

TABLE OF CONTENTS
GENERAL REQUIREMENTS Page(s)
DOCUMENT AA Notice-to-Bidders AA 1-2
DOCUMENT BB Instruction-to-Bidders BB 1-5
DOCUMENT CC Proposal and Schedule of Prices CC 1-5
DOCUMENT DD Construction Contract DD 1-2
DOCUMENT EE Proposal Guarantee (Bid Bond) EE 1
DOCUMENT FF General Conditions FF 1-28
DOCUMENT GG Special Conditions GG 1-4
DOCUMENT NN Performance Bond NN 1-3
CONSTRUCTION SPECIFICATIONS
IA CS-001 Site Preparation 1-1 to 1-2
IA CS-005 Pollution Control 5-1 to 5-3
IA CS-006 Seeding and Mulching for Protective Cover 6-1 to 6-4
IA CS-008 Mobilization & Demobilization 8-1 to 8-2
IA CS-009 Subsurface Drain Investigation, Removal and Repair 9-1 to 9-4
IA CS-011 Removal of Water 11-1 to 11-2
IA CS-021 Excavation 21-1 to 21-3
IA CS-023 Earthfill 23-1 to 23-6
IA CS-024 Drainfill (Sand) 24-1 to 24-2
IA CS-026 Topsoiling 26-1 to 26-2
IA CS-031 Concrete 31-1 to 31-6
IA CS-045 Plastic (PVC, PE) Pipe 45-1 to 45-5
IA CS-046 Tile Drains for Land Drainage 46-1 to 46-4
IA CS-051 Corrugated Metal Pipe Conduits 51-1 to 51-5
IA CS-061 Loose Rock Riprap 61-1 to 61-3
IA CS-081 Metal Fabrication 81-1 to 81-2
IA CS-095 Geotextile 95-1 to 95-4
33 4411 Pump Station 33 44 11 (NRCS CS-045) 45-1 to 45-5
26-0519 Low-Voltage Electrical Power Conductors & Cables 26 0519-1 to 26 0519-7
26-0526 Grounding & Bonding for Electrical Systems 26 0526-1 to 26 0526-4
26-0529 Hangers & Support for Electrical Systems 26 0529-1 to 26 0529-5
26 0533.13 Conduit for Electrical Systems 26 0533.13-1 to 26 0533.13-7
26 2816.16 Enclosed Switches 26 2816.16-1 to 26816.16-5
26 3100 Photovoltaic Collectors 26 3100-1 to 26 3100-11
PLANS
C000 Cover Sheet 04/03/2026
C001 Project Quantities 01/10/2025
C002 Project Notes 01/10/2025
CD01 Existing Conditions and Removals 01/10/2025
C101 NORTH Wetland Grading Plan 01/10/2025
C102 NORTH Wetland Cut-fill Plan 01/10/2025
C103 NORTH Drawdown Plan & Profile 01/10/2025
C104 NORTH Wetland Pump Station 1 Plan & Profile 01/10/2025
C105 NORTH Wetland Pump Station 2 Plan & Profile 01/10/2025
C106 NORTH Seeding Plan 01/10/2025
Continued on next page
i

C201 SOUTH Wetland Grading Plan 01/10/2025
C202 SOUTH Wetland Cut-fill Plan 01/10/2025
C203 SOUTH Embankment Plan & Profile 01/10/2025
C204 SOUTH Wetland Drawdown Plan & Profile 01/10/2025
C205 SOUTH Wetland PUMP Station Plan & Profile 01/10/2025
C206 SOUTH Seeding Plan 01/10/2025
C301 Construction Details 01/10/2025
C302 Construction Details 01/10/2025
C303 Construction Details 01/10/2025
C304 NORTH Wetland Duplex Pump Details 01/10/2025
C305 SOUTH Wetland Simplex Pump Details 01/10/2025
E101 NORTH Wetland Pump Station 01/10/2025
E102 SOUTH Wetland Pump Station 01/10/2025
APPENDIX I - CONSTRUCTION ADMINISTRATION FORMS
DOCUMENT LL Notice-of-Award LL 1
DOCUMENT MM Notice-to-Proceed MM 1
DOCUMENT JJ Construction Progress Schedule JJ 1-2
DOCUMENT SS Application & Certificate for Payment SS 1-2
DOCUMENT HH Change Order Request HH 1-2
DOCUMENT II Construction Contract Amendment II 1-3
DOCUMENT QQ Iowa Sales & Use Tax Form QQ 1
APPENDIX II - ADDENDA & BID TAB
[Addenda, if any, and bid tab to be added after bidding]
ii

GENERAL REQUIREMENTS

Cal883229BN-North & BS-South Nutrient Reduction Wetland Project DOCUMENT AA
Bid No. 26-2 NOTICE-TO-BIDDERS
NOTICE-TO-BIDDERS
____________________________________________________________________________________________________
Cal883229BN-North & BS-South Nutrient Reduction Wetland Project
Section 29, Township 88 North, Range 32 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, 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 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.
AA

Cal883229BN-North & BS-South Nutrient Reduction Wetland Project DOCUMENT AA
Bid No. 26-2 NOTICE-TO-BIDDERS
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
END OF DOCUMENT AA
AA

Cal883229BN-North & BS-South Nutrient Reduction Wetland Project DOCUMENT BB
Bid No. 26-2 INSTRUCTIONS TO BIDDERS
INSTRUCTIONS TO BIDDERS
TABLE OF CONTENTS
01 BIDDER'S KNOWLEDGE & PRE-BID CONFERENCE BB-1
02 BIDDER'S QUALIFICATIONS BB-1
03 OBTAINING BID DOCUMENTS BB-2
04 METHOD OF BIDDING BB-2
05 SUBMISSION OF BIDS BB-2
06 BID SECURITY BB-3
07 WITHDRAWAL OF BIDS BB-3
08 EVALUATION OF BIDS AND AWARD OF CONTRACT BB-3
09 TAXES BB-3
10 EXECUTION OF CONTRACT BB-3
11 QUANTITIES BB-4
12 QUESTIONS AND ADDENDA BB-4
13 PRECONSTRUCTION CONFERENCE BB-4
14 SUMMARY OF BID SUBMITTAL REQUIREMENTS BB-4
01 BIDDER'S KNOWLEDGE & PRE-BID CONFERENCE
The proposed project is located as specified in the Notice-to-Bidders (Document AA). Bidders shall familiarize themselves with
the Contract Documents and conditions that will affect the construction. Specific items relating to the preparation of bids and
the submission thereof are listed elsewhere in the Contract Documents. It will be the responsibility of the bidder to examine all
Contract Documents and to make a personal examination of the job site and the physical conditions that may affect bidding and
performance under the Contract.
A pre-bid conference will be held at the location, date and time as set forth in the Notice-to-Bidders. Attendance at the pre-bid
conference by prospective bidders is not mandatory but is encouraged.
02 BIDDER'S QUALIFICATIONS
To demonstrate qualifications to perform the Work, each Bidder must be prepared to submit, within ten (10) days of Division
of Soil Conservation and Water Quality (Division) request, written evidence, such as financial data, previous experience,
present commitments and other such data as may be called for below.
Contractors are required to be registered with the Iowa Department of Inspections, Appeals & Licensing.
Bidder must verify the number of years engaged in the contracting business under the present firm name, and
the name of the state where incorporated.
A Bidder must show ownership of twenty percent (20%) of their own equipment and list equipment that will
be rented or subcontracted by the Bidder to evaluate if the Bidder can complete the Work in accordance with
the Bidding Documents.
Bidder must provide performance record giving the description, location, and telephone numbers of similar
projects constructed in a satisfactory manner by the Bidder.
Bidder must submit a list of projects presently under contract, the approximate contract amount, and percent
of completion of each.
Bidder must demonstrate satisfactory performance on previous and present contracts similar in scope to the
subject of this project.
Bidder must provide a list of contracts which resulted in lawsuits, contracts defaulted, and a statement of the
Bidder indicating whether or not the Bidder has ever filed bankruptcy.
BB-1

Cal883229BN-North & BS-South Nutrient Reduction Wetland Project DOCUMENT BB
Bid No. 26-2 INSTRUCTIONS TO BIDDERS
Bidder must provide the technical experience of personnel guaranteed to be employed in the responsible
charge of the Work stating whether the personnel have or have not performed satisfactorily on other contracts
of like nature and magnitude or comparable difficulty at similar rate of progress.
Bidder must provide such additional information as will assist the Division in determining whether the Bidder
is adequately prepared to fulfill the contract.
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.
03 OBTAINING BID DOCUMENTS
An electronic copy of all of the bidding documents for this project has been posted to the Iowa Department of Agriculture and
Land Stewardship website: https://iowaagriculture.gov/dscwq/requests-proposals and
https://das.iowa.gov/vendors/bidding-opportunities#vendor-bid-opportunities
* View Other Agency Hosted Solicitations
* BIDDER LOGIN - https://solutions.sciquest.com/apps/Router/SupplierLogin?CustOrg=DASIowa
These include Document AA - Notice to Bidders, Document BB - Instruction to Bidders, Document CC - Proposal and
Schedule of Prices, Document DD - Construction Contract, Document EE - Proposal Guarantee (Bid Bond), Document FF -
General Conditions, Document GG - Special Conditions, Document NN - Performance Bond. The website also contains the
Construction Specifications and the Construction Plans developed by the engineer. The documents on these websites can be
viewed or printed by those interested in the project.
The Division will maintain an updated plan holders list for this project. In order to be added to the plan holders list, the
interested party must contact the Division by phone, fax, letter, or e-mail. Bidders who attend and sign-in to the pre-bid
conference will be added to the plan holders list. Viewing the documents on-line does not automatically add you to the plan
holders list. Those listed as a plan holder will receive meeting minutes, any and all addenda and an updated plan holders list.
These documents can be received directly from the Division.
04 METHOD OF BIDDING
Bidders shall submit unit price bids as required for the work items covered by the Bid Documents. Failure to submit unit prices
as required shall result in disqualification of the bid. Prices shall cover complete work and include all costs incidental thereto,
unless otherwise indicated.
The Division may change location, quantities, and combination of units as required during the progress of construction. If work
is added to the Contract that is not covered by a bid price set forth in the Proposal and Schedule of Prices (Document CC), a
Change Order or Contract Amendment as necessary, including the negotiated cost for said work, will be issued by the Division
prior to the work being performed.
Bids will be compared using quantities shown in the proposal. The quantities of work shown represent the Engineer's estimate
of work to be completed as shown on the plans and measured in accordance with provisions in this Contract defining the
method to be used in measuring such quantities. The Contractor's compensation will be computed on the basis of final
quantities of completed work. Where a lump sum is shown on the proposal as a unit bid price for a specified work item, the
Contractor will be paid that amount for the completed and accepted work.
In the event of discrepancies between unit prices and unit price extensions listed in bidder's proposal, unit prices shall
govern.
05 SUBMISSION OF BIDS
Interested bidders shall only submit bids on IMPACS. All required documents must be submitted on IMPACS for the bid to be
opened. These documents include: the Bid Submittal Authorization Form, acknowledgment of all issued addenda, and the Bid
Bond as specified in Section 06. The bid itself will be entered and calculated via the 'Items' feature within IMPACS. All bids
must be submitted with any modifications prior to the time and date noted for bid submission. A legally authorized
representative of the bidder shall sign the bid.
BB-2