BigI_Espy_95_levee_WCS.docx

Scope of work: levee repair and water control structure replacement at Big Island Wildlife Area, Marion County, OH History and Overview

Big Island Wildlife area is in a former wetland prairie where agricultural development has taken over. The management for this location is to restore wetland, grassland, woody corridors, and forest habitats. Wetlands have been a primary focus as they provide opportunities for the public to participate in recreational activities (i.e. birding, trapping, hunting, etc.) and areas for waterbirds to nest, feed, and loaf. Water levels must be properly managed as natural fluctuation influences the activity of wildlife. Water control structures and levee structures are instrumental for this process given their ability to control water movement across the landscape. As time has passed, levee and water control structure degradation occur, and replacements are necessary. Therefore, the ODNR Division of Wildlife is seeking contractors to repair existing levee and remove one existing water control structure and install a new Agri drain 18” with a 10’ riser at Big Island Wildlife Area, Marion County, Ohio (Figure 1 and Figure 2).

Contractor shall include the supply of all labor, materials and equipment required to complete the water control structure removal/installment and levee repairs located at Big Island wildlife area. All services must comply with specifications listed below and with federal, state, and local governmental laws, regulations, codes and ordinances. All work will be completed in a manner consistent with customary industrial practices. The contractor is to confirm staging areas with primary agent before placement of materials. Contractor shall ensure that the job site is clean, dispose of any debris, and leave no open hazards at the end of every workday. All itemized scope items below are by contractor unless noted otherwise.

The contractor is responsible for draining the wetland to perform the levee repairs. Contractor is responsible for the removal of the existing structure and the unwanted debris prior to levee repairs. The contractor is expected to level and smooth the slopes, repairing embankment slopes to a 3:1 slope on the wetland side of the levee. The contractor is responsible for preparing the stie for installation of the new Agri drain 18” water control structure with a 6’ riser at the same location of the removed water control structure (Figure 3). Contractor is responsible for bringing outside fill material if needed. The contractor is responsible for following manufacturer installation instructions when installing the water control structure. Toe stone (Type “D” rip rap) will be positioned at the base of the structure to prevent downward migration of the placed material. The type “D” armoring stone must be placed, fit, or compacted. The contractor is to install 18” stainless steel rodent guards in the pipe ditch, along with a beaver exclusion fence on wetland side of the new water control structure to the specifications of the area manager (Figure 4).

Task 1: Removal of Corrugated Metal Screw Gate Water Control Structure:

Task Overview This task is to remove an existing water control structure and unwanted debris.

Specifications

· Contractor is to remove the existing water control structure and all unwanted debris (Figure 2).

Task 2: Repair of levee system and site preparation for installment of new Agri Drain:

Task Overview This task is to repair existing levee and site preparation and installment of new Agri Drain.

Specifications

· Contractor responsible for draining the unit to perform the needed levee repairs.

· Contractor to core trench the existing levee (Figure 2).

· Contractor to remove small trees from the wetland side of the levee wall and reshape to a 3:1 slope.

· Contractor may use material immediately from the inside the levee wall to reshape existing levee or bring outside fill material if needed.

· Brush my be piled onsite at a location approved by the area manager.

Task 3: Placement of Agri Drain Water Control Structure:

Task Overview This task is the preparation and placement of a new Agri-drain water control structure.

Specifications

· Contractor is to place a new Agri drain 18” water control structure with a 10’ riser at the same location from the removal conducted in task one. Follow the manufacturer’s instructions for installation (Figure 3).

· Contractor to install 18” stainless steel rodent guards in the pipe ditch of the new water control structure. 18" Stainless Rat Guard

· Contractor to install a beaver exclusion fence on wetland side of the new water control structure to the specifications of the area manager (Figure 4).

· The contractor is to place riprap (D Rock) 20 feet on either side of the Agri Drain structure facing the wetland.

General Conditions:

· The contractor is responsible for repairing any ruts greater than 4 inches deep.

· Disturbed areas need to be re-seeded and mulched with an approved seed mix.

· Contractor is responsible for purchasing all materials associated with the project scope.

· No trees >5” DBH may be cut between the dates of March 31-October 1.

Timeframe and Permitting for All Work Tasks:

The contract will be awarded to the lowest responsive and responsible bidder as determined by the State. Vendors need to submit bids in terms of total cost. The contract will be awarded to the lowest responsive bidder and responsible bidder by low lot total.

It will be the responsibility of the contractor to locate any underground utilities before they begin work. The contractor is required to contact the ODNR Division of Wildlife project agent at least two business days prior to initially entering the property for work. All work to be completed between bid close date to October 31st, 2025.

If the successful bidder does not provide the specified services by the timelines listed above, the ODNR Division of Wildlife reserves the right to prorate or cancel the purchase order.

Address of work location:

6683 LaRue-Prospect Rd, New Bloomington, OH 43341

Big Island Wildlife Area Headquarters, 5393 Larue-Prospect Rd, New Bloomington, OH 43341

Guidelines for Bidding:

Bidders are required to submit a photo of the site or schedule a site visit with the Primary Agent before submitting a bid. Bidders are to view the areas in the scope of work before the end of the inquiry period noted in the bid opening. Big Island wildlife area is open to public access and may be visited during daytime hours. Please contact Katherine Camarda (Primary Contact) or Robert Batterson (Secondary Contact).

The awarded supplier will be required to sign an Addendum to Bid Quote or Personal Services.

Thank you for your interest

Primary Project Agent Secondary Project Agent Katherine Camarda Robert Batterson Wildlife Area Coordinator Assistant Wildlife Management Supervisor katherine.allen@dnr.ohio.gov robert.batterson@dnr.ohio.gov 614 – 673 – 1155 614 – 424 – 9985

Figure 1. Location of the wetland with levee and water control structure repairs.

Figure 2. Location of levee and water control structure.

Figure 3. Agri Drain description and device explanation Figure 4. Beaver exclusion device.

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