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The following are the results of bids received July, 2025 for public improvement projects which the Iowa Department of Natural Resources requires to be constructed. The results included below are the bids that were received timely. Consistent with the Specifications Manual, in the event of a discrepancy between a unit price, extensions or total amounts of bid, the unit price proposed by the bidder has been used to accurately calculate the total price based on the quantities identified in the project specifications.
NO DETERMINATION HAS BEEN MADE BY THIS PUBLICATION AS TO WHICH BID, IF ANY, IS THE LOWEST RESPONSIBLE, RESPONSIVE BID. THE DNR RESERVES THE RIGHT, AFTER REVIEW OF THE BIDS SUBMITTED, TO AWARD A CONTRACT FOR THE PROJECTS LISTED BELOW TO THE ENTITY SUBMITTING THE LOWEST RESPONSIBLE, RESPONSIVE BID OR TO REJECT ALL BIDS.
View Project Details for this Bid Letting
| HARDIN -- PROJECT # 23-02-42-01 7/24/2025 Large Project Letting
| IOWA RIVER
| | STEAMBOAT ROCK DAM MITIGATION - PHASE 1 | | | | BIDS RECEIVED: |
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Shift General Contracting
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$1,213,765.00 |
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Three Oaks Contruction Inc
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$1,242,254.98 |
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Gehrke, Inc
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$1,288,531.55 |
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Boomerang Corp of Iowa
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$1,551,919.00 |
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Peterson Contractors, Inc
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$1,743,644.45 |
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H & H Construction & Development LLC
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$2,010,495.85 |
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HGS, LLC
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$2,436,819.42 |

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| HARDIN -- PROJECT # 23-02-42-01 7/24/2025 Large Project Letting
| IOWA RIVER
| | STEAMBOAT ROCK DAM MITIGATION - PHASE 1 - CONTRACTED | | | | BIDS RECEIVED: |
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Three Oaks Contruction Inc
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$1,089,646.34 |
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Shift General Contracting
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$1,092,589.00 |
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Gehrke, Inc
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$1,163,668.30 |
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Boomerang Corp of Iowa
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$1,345,433.00 |
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Peterson Contractors, Inc
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$1,608,609.95 |
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H & H Construction & Development LLC
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$1,966,970.85 |
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HGS, LLC
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$2,211,663.28 |

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| LINN -- PROJECT # 24-06-57-01 7/24/2025 Large Project Letting
| PLEASANT CREEK SRA
| | CAMPGROUND IMPROVEMENTS | | | | BIDS RECEIVED: |
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Eastern Iowa Excavating & Concrete, LLC
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$192,151.85 |
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Midwest Concrete Inc
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$328,062.00 |
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Boomerang Corp of Iowa
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$342,873.60 |
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Rathje Construction Co
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$358,124.87 |

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| MAHASKA -- PROJECT # 20-05-62-07 7/24/2025 Large Project Letting
| LAKE KEOMAH STATE PARK
| | SPILLWAY FLOOR CONCRETE | | | | BIDS RECEIVED: |
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Modern Concrete MODCON INC
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$76,720.00 |
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Caliber Concrete LLC
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$91,186.88 |
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TK Concrete, Inc
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$105,980.00 |
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Jasper Construction Services, Inc
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$108,982.00 |
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Portland Construction Company
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$112,052.00 |
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McGee Concrete, LLC
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$124,229.60 |
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Iowa Bridge & Culvert, LC
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$137,240.00 |
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Construction Leaders Co LLC
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$146,588.00 |
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Cramer and Associates Inc
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$203,756.00 |
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Godbersen-Smith Construction Co
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$217,724.00 |

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| CERRO GORDO -- PROJECT # 23-03-17-09 7/24/2025 Small Project Letting
| CLEAR LAKE STATE PARK
| | RESTROOM AND SHOWER BUILDING (DUPLICATE) | | | | BIDS RECEIVED: |
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Steege Construction, Inc
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$189,785.00 |

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| DICKINSON -- PROJECT # 25-01-30-12 7/24/2025 Small Project Letting
| TRIBOJI DOCK MANAGEMENT AREA
| | SHORELINE REPAIR & STABILIZATION | | | | BIDS RECEIVED: |
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Laubes Backhoe and Hauling LLC
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$63,871.00 |
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Sioux Valley Construction
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$65,755.00 |
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Three Oaks Contruction Inc
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$69,850.00 |
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Country Landscapes, Inc.
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$90,000.00 |
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Diamond Concrete & Construction, Inc
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$106,167.50 |
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MLS Landscape and Design INC.
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$130,782.19 |
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Schoelerman Contracting LLC
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$135,600.00 |
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Tk Landsacpe & Design DBA Oleson Landscape
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$160,821.00 |

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| LOUISA -- PROJECT # 25-06-58-01 7/24/2025 Small Project Letting
| ODESSA WILDLIFE UNIT
| | ODESSA WMA-ROAD LEVEE ARMORING | | | | BIDS RECEIVED: |
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Triple B Construction
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$39,490.00 |
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Blue Top Excavating LLC
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$39,889.00 |
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IA Builders Dirt Work
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$47,240.00 |
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Barnhart's Custom Services LLC
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$48,431.96 |
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Connolly Excavating, Inc
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$58,056.00 |
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River Construction
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$89,810.28 |
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