PROJECTS LETTING -  January , 2026

 
 
bid envelopes

 
 

The following projects are currently advertised for bids. Interested bidders may find general information about each project, as well as printable actual Contract Documents in PDF format. The general information is the same project description provided to Newspapers and by direct mail solicitations. The Contract Documents include the Drawings and the entire Project Manual.  Drawings can be printed on any regular or large format printers. The Project Manual includes Proposal Forms,  Front End Documents, General and Supplementary Covenants, and Technical specifications. All these are also completely printable.

Effective October 2009, the Department will no longer be responsible for providing hard copy notice to bidders or addenda to either contractors or plan rooms. An email listserv has been created to communicate electronically with vendors currently on file with the DNR. As a member of this listserv, you will receive electronic notice to bidder information on a regular basis. To subscribe to this list, click here.

The Department will be utilizing the vendor Beeline and Blue to provide printed copies of Plans and Specifications and Addenda upon request. The department will no longer provide complimentary copies of Plans and Specifications to contractors or sub-contractors after award of the contract. Please visit dfs.beelineandblue.com/iowa or contact (515) 244-1611 for more information.

To access any of these, unless you have already done so, you will need to download and install Acrobat Reader from the Adobe Website. 
You may obtain a free download from
 

Click on the project names below to view the one(s) which interest you.

BOONE 24-02-08-01 Ledges State Park - Oak Woods Shelter Repairs-2026-01-22   Bid Completion detail
DICKINSON 22-01-30-04 Spirit Lake Fish Hatchery - Shoreline Restoration-2026-01-22   Bid Completion detail
MONONA 26-01-67-01 Lewis and Clark State Park Visitors Center - HVAC System Replacement -2026-01-22   Bid Completion detail
CERRO GORDO 26-03-17-02 Clear Lake Fisheries Management Unit - Aquarium Roof-2026-01-29   Bid Completion detail
MAHASKA 25-05-62-02 Lake Keomah State Park - Pedestrian Bridge-2026-02-05   Bid Completion detail
TAMA 26-05-86-01 Union Grove - House Foundation Removal-2026-02-12   Bid Completion detail
CLAYTON 26-03-22-01 Pikes Peak State Park - Lagoon Liner Replacement-2026-02-19   Bid Completion detail
DICKINSON 25-01-30-11 Templar State Recreation Area - Boat Ramp Restroom-2026-02-19   Bid Completion detail
WEBSTER 26-02-94-02 Brushy Creek Beach - Watershed BMPS-2026-02-19   Bid Completion detail
WINNEBAGO 23-02-95-01 Clear Lake Wildlife Unit - Myre Slough Water Control Structure Replacement-2026-02-19   Bid Completion detail




BOONE -- PROJECT # 24-02-08-01                1/22/2026                Large Project Letting
LEDGES STATE PARK
OAK WOODS SHELTER REPAIRS
Proposal Guarantee: $25,000
Completion Date: 7/31/2026

   This project includes repairs to two historically significant shelters in Ledges State Park near Boone, Iowa. Oakwood Shelter - The structure has shifted due to tree falling on the shelter. The entire log structure is to be disassembled. New column footings will be constructed and new log columns set on top. Log structure to be reassembled using original log components wherever possible. The existing roof and roof framing will be demolished and removed. A new log purlin roof will be constructed on the reassembled log framing structure. The stone chimney will need cleaning and repointing. Fireplace brick to be cleaned and repointed. Brick floor and concrete walkway need cleaning and sealing. Electrical conduits and receptacles to be rerouted and painted similar to existing. An ADA compliant concrete pad will be constructed to appropriately access the shelter's grill. Henning Shelter - Repairs to the shelters timber beams are needed at some bearing locations. Flashing is in need of repair at stone chimney and roof intersection. Realignment of log framing to be completed.

ESTIMATED QUANTITIES:
    MOBILIZATION     1 L.S.
    DEMOLITION     1 L.S.
    CONCRETE FOOTINGS AND PAD     1 L.S.
    CHIMNEY STONE REPLACEMENT AND REPOINTING     1 L.S.
    CHIMNEY CROWN AND FLUE REPAIRS     1 L.S.
    FIREPLACE BRICK REPAIR AND REPOINTING     1 L.S.
    LOG COLUMN CONSTRUCTION AND ACCESSORIES     1 L.S.
    LOG BEAMS AND RAFTERS CONSTRUCTION     1 L.S.
    LOG PURLIN CONSTRUCTION     1 L.S.
    LOG RAILING AND COLUMN BRACES REINSTALLATION CONSTRUCTION     1 L.S.
    ROOF SHEATHING, UNDERLAYMENT, SHINGLES AND ACCESSORIES     1 L.S.
    LOG STAINING, PROTECTANTS, CONSOLIDANTS, AND COATINGS     1 L.S.
    CHIMNEY FLASHING REPLACEMENT AND SEALANT     1 L.S.
    ELECTRICAL PANEL, CONDUIT AND OUTDOOR RECEPTACLES     1 L.S.
    NEW ADA GRILL UNIT     1 L.S.
    CLEAN AND SEAL EXISTING CONCRETE     1 L.S.
    CLEAN, SEAL, RESTRIPE ADA PARKING CONCRETE PAD     1 L.S.
    SEEDING AND EROSION CONTROL     1 L.S.
    HENNING SHELTER - TIMBER BEAMS REPAIR     1 L.S.
    HENNING SHELTER - CHIMNEY FLASHING REPAIR     1 L.S.
    HENNING SHELTER - REPOINTING AT TIMBER HEADER     1 L.S.
    HENNING SHELTER - REALIGN AND SECURE GABLE END LOG RAFTERS     1 L.S.
    HENNING SHELTER - REPOINT MORTAR AT CHIMNEY(25% OF AREA EST.)     1 L.S.

notice to bidders

download plans and specs

Plans can be ordered by following this link: http://bit.ly/IADNRPlans

planholders list




DICKINSON -- PROJECT # 22-01-30-04                1/22/2026                Large Project Letting
SPIRIT LAKE FISH HATCHERY
SHORELINE RESTORATION
Proposal Guarantee: $25,000
Completion Date: 6/26/2026

   This project is located on the shore of East Okoboji Lake at Isthmus Park and the Spirit Lake Fish Hatchery. It includes tree and brush clearing, stump grinding in Isthmus Park, 860 linear (shoreline) feet of coir logs, and 222 tons of shoreline riprap armoring. It includes 1.5 acres of turf grass seeding, 1 acre of native seeding and 2.5 acres of mulching. A NPDES Permit #2 and SWPPP are required.

ESTIMATED QUANTITIES:
    Mobilization     1 L.S.
    Traffic Control     1 L.S.
    Tree and Brush Clearing     1 L.S.
    Native Fieldstone, Class D Riprap     222 Tons
    Double 12" Coir Log     640 L.F.
    Single 12" Coir Log     220 L.F.
    Earthfill (topsoil)     120 C.Y.
    Granular Surfacing, 1.5" Roadstone     50 Tons
    Turf Grass Seeding     1.5 Acres
    Native Seeding     1 Acres
    Hydraulic Wood Cellulose Mulching     2.5 Acres
    Stump Grinding     55 Each
    NPDES Permit and SWPPP     1 L.S.

notice to bidders

download plans and specs

Plans can be ordered by following this link: http://bit.ly/IADNRPlans

planholders list




MONONA -- PROJECT # 26-01-67-01                1/22/2026                Large Project Letting
LEWIS AND CLARK STATE PARK VISITORS CENTER
HVAC SYSTEM REPLACEMENT
Proposal Guarantee: $25,000
Completion Date: 6/30/2026

   Project includes replacement of outdated HVAC units and controls. Project also includes replacements of geothermal system vault, valves, and glycol. Repairs will restore proper balancing and function to essential building HVAC systems.

ESTIMATED QUANTITIES:
    MOBILIZATION     1 L.S.
    EXISTING HVAC DEMOLITION     1 L.S.
    NEW HVAC UNITS - EQUIPMENT AND INSTALL     1 L.S.
    GEOTHERMAL VAULT, VALVES AND GLYCOL REPLACEMENT     1 L.S.
    BORING     1 L.S.
    EXISTING ELECTRICAL DEMOLITION     1 L.S.
    NEW ELECTRICAL CONNECTIONS AND BREAKERS     1 L.S.
    MISC. ELECTRICAL     1 L.S.

notice to bidders

download plans and specs

Plans can be ordered by following this link: http://bit.ly/IADNRPlans

planholders list




CLAYTON -- PROJECT # 26-03-22-01                2/19/2026                Large Project Letting
PIKES PEAK STATE PARK
LAGOON LINER REPLACEMENT
Proposal Guarantee: $12,500
Completion Date: 5/22/2026

   This project includes removing the existing HDPE lagoon liners and replacing with new at the Pikes Peak State Park wastewater treatment lagoons.

ESTIMATED QUANTITIES:
    Mobilization     1 L.S.
    Biosolids Removal     55,535 GAL.
    Removal & Disposal of Old Liner     1 L.S.
    New Liner & Installation     1,852 S.Y.
    Site Restoration     1 L.S.

notice to bidders

download plans and specs

Plans can be ordered by following this link: http://bit.ly/IADNRPlans

planholders list




DICKINSON -- PROJECT # 25-01-30-11                2/19/2026                Large Project Letting
TEMPLAR STATE RECREATION AREA
BOAT RAMP RESTROOM
Proposal Guarantee: $25,000
Completion Date: 11/13/2026

   This project includes a small prefabricated restroom building, PCC sidewalk, pavement removal, new PCC pavement, pavement markings, minor grading, seeding, and mulching. Water, sewer, and electrical infrastructure for the building is also included. Erosion control is required.

ESTIMATED QUANTITIES:
    Mobilization     1 L.S.
    Construction Staking     1 L.S.
    Seeding     1 L.S.
    RECP Matting (SUDAS Type 2.B)     480 S.Y.
    Pavement Removal     192 S.Y.
    Pavement Saw Cut     72 L.F.
    Excavation, Class 10, Waste     93 C.Y.
    Special Backfill     94 Tons
    Reinforced Parking Lot, 6" PCC     189 S.Y.
    Reinforced Sidewalk, 5" PCC     106 S.Y.
    Detectable Warning Pads     2 Each
    Curb and Gutter, 2.5'     78 L.F.
    Pavement Markings, High Build waterborne, Yellow     480 L.F.
    ADA Parking Signs     2 Each
    Precast Modular Restroom Building, Complete     1 L.S.
    Building Modification - Water Meter     1 L.S.
    Electrical Service Connection     1 L.S.
    1" Saddle Tap and Corporation Stop     1 Each
    2" Curb Stop and Riser     1 Each
    Drain Down Pit     1 Each
    2" Water Line, HDPE (Trenchless)     180 L.F.
    2" Water Line, Type K copper     25 L.F.
    Testing and Disinfection - Water System     1 L.S.
    6" PVC Sanitary Sewer     60 L.F.
    Sanitary Sewer Cleanout     1 Each
    48" Sanitary Sewer Manhole, SW-303     1 Each
    External Drop Structure, SW-307     1 Each
    Wattles     280 L.F.

notice to bidders

download plans and specs

Plans can be ordered by following this link: http://bit.ly/IADNRPlans

planholders list




WEBSTER -- PROJECT # 26-02-94-02                2/19/2026                Large Project Letting
BRUSHY CREEK BEACH
WATERSHED BMPS
Proposal Guarantee: $25,000
Completion Date: 9/15/2026

   This project consists of constructing stormwater infrastructure at the Brushy Creek SRA beach.

ESTIMATED QUANTITIES:
    Topsoil, On-site     445 C.Y.
    Excavation, Class 10, Rough Grading     540 C.Y.
    Excavation, Class 10, Sand Grading     122 C.Y.
    Removal of Structure, Intake     8 Each
    Removal of Known Pipe and Conduit     405 L.F.
    Biocell Materials     2,870 S.F.
    Storm Sewer, Trenched, HDPE, Dual Wall, 12"     144 L.F.
    Storm Sewer, Trenched, RCP, 18"     151 L.F.
    Storm Sewer, Trenched, RCP, 24"     248 L.F.
    Linear Trench Drain     3 Each
    Flared End Section, RCP, 12"     1 Each
    Manhole, SW-401, 48"     1 Each
    Intake, SW-512, 18"     2 Each
    Intake, SW-512, 30"     5 Each
    Intake Adjustment, Major, SW-513     1 Each
    Removal of Sidewalk     77 S.Y.
    Sidewalk, PCC, 5"     538 S.Y.
    Seeding, Fertilizing, and Mulching for Hydraulic Seeding     1 L.S.
    Temporary RECP, Type 2D, Natural     1,300 S.Y.
    Wattle     600 L.F.
    Rip Rap, Class "E"     15 Tons
    Mobilization     1 L.S.

notice to bidders

download plans and specs

Plans can be ordered by following this link: http://bit.ly/IADNRPlans

planholders list




WINNEBAGO -- PROJECT # 23-02-95-01                2/19/2026                Large Project Letting
CLEAR LAKE WILDLIFE UNIT
MYRE SLOUGH WATER CONTROL STRUCTURE REPLACEMENT
Proposal Guarantee: $12,500
Completion Date: 9/18/2026

   This project involves replacing an existing deteriorated water control structure with a single 11' x 10' box culvert with two stop log bays. Also includes a new catwalk with handrails, aluminum stop logs and cleanout of the inlet.

ESTIMATED QUANTITIES:
    Mobilization     1 L.S.
    Traffic Control     1 L.S.
    Runoff Diversion and Dewatering     1 L.S.
    Structure Removal     1 L.S.
    Water Control Structure     1 L.S.
    Sheet Piling     61 L.F.
    Road Stone, Class A     60 Tons
    Revetment, Class E     78 Tons
    Stoplogs     12 Each
    Storage Box     1 Each
    Site Restoration     1 L.S.

notice to bidders

download plans and specs

Plans can be ordered by following this link: http://bit.ly/IADNRPlans

planholders list




CERRO GORDO -- PROJECT # 26-03-17-02                1/29/2026                Small Project Letting
CLEAR LAKE FISHERIES MANAGEMENT UNIT
AQUARIUM ROOF
Proposal Guarantee:
Completion Date: 5/20/2026

   Work consists of removing existing clay tiles on the aquarium portion of the hatchery. Existing dormers will be removed and areas infilled. Install new architectural shingles and parapet wall flashing.

Contact:
Kenneth Howe
319-240-3553
Kenneth.howe@dnr.iowa.gov




MAHASKA -- PROJECT # 25-05-62-02                2/5/2026                Small Project Letting
LAKE KEOMAH STATE PARK
PEDESTRIAN BRIDGE
Proposal Guarantee: $0
Completion Date: 5/31/2026

   This project includes installing a 60' pedestrian bridge at Lake Keomah State Park. The bridge is currently located in the Stephens State Forest near Lucas, Iowa. Contractor is to transport the bridge to Lake Keomah, install footings, and install the bridge over the spillway. Send an email to request plans.

Contact:
Jason Kruse
(515) 250-3707
jason.kruse@dnr.iowa.gov




TAMA -- PROJECT # 26-05-86-01                2/12/2026                Small Project Letting
UNION GROVE
HOUSE FOUNDATION REMOVAL
Proposal Guarantee: $0
Completion Date: 6/30/2026

   The ranger's residence at Union Grove State Park is being removed from the site prior to the commencement of this contract. This project includes complete removal of basement walls and floor. Sewer and water will be capped outside of the building footprint. The hole will be filled with contractor-supplied clay and compacted. Send an email to request plans.

Contact:
Jason Kruse
(515) 250-3707
jason.kruse@dnr.iowa.gov