Scope of Work Powell Road Wetland.docx

Name or Title of the Service or Supply: Powell Road Embankment Reconstruction, Stabilization, Armoring and Water Control Structure Replacement. Fallsville Wildlife Area

Ordering Division and Address:

ODNR - Division of Wildlife Fallsville Wildlife Area 10221 Careytown Road New Vienna, OH

Project Overview:

Contractor shall include the supply of all labor, materials, and equipment required to complete the specified wetland Embankment Reconstruction, Stabilization, Armoring and Water Control Structure Replacement.

All services must comply with specifications listed below to include but not limited to the following items and comply with federal, state, and local governmental laws, regulations, codes, and ordinances. All work will be completed in a manner consistent with customary industrial practices. Contractor shall ensure that the job site is cleaned up, dispose of any debris, and leave no open hazards at the end of every workday. All itemized scope items listed below are by contractor, unless noted otherwise.

Address of Work Location:

Fallsville Wildlife Area Powell Road New Vienna, OH 43464

Scope of Services:

This project is for embankment reconstruction, stabilization, armoring and water control structure replacement of existing wetland embankment at Fallsville Wildlife Area (see Figure 1). The contractor shall:

· Mow or grub all vegetation up to 5” DBH, leaving no more than 3” above ground level

· Repair any damage from burrowing rodents and wave action,

· Regrade embankment slopes to a minimum of 3:1 in preparation for stone placement,

· Provide and place all crushed stone (Type “D” Riprap), as follows:

· Armor stone must be placed, fit, and/or compacted to prevent downslope migration

· Band of armor shall extend from top of embankment slope to the toe of the embankment

· Minimum thickness of band of armor – 12 inches

· Approximate total length of embankment to be armored – 600 linear feet

· Remove old water control structure and replace with new.

Water Control Structure Replacement

· Control structures must be installed per manufacturer’s instructions or as stated below:

1. Contractor shall use fine clay material onsite for backfilling the structure.

1. Remove all boards except the bottom board and lubricate the gaskets and track with white lithium grease provided by Agri Drain. Reinstall all boards to the top of the structure before backfill or compaction.

1. Contractor shall re-install the structure ensuring it is level / plumb and set at the exact elevation the old control structure was set.

1. Contractor shall slide pipes into the Fernco and install new hose clamps.

1. Contractor shall provide and install the anti-seep collars (1/16” gum rubber w/wood frame) onto pipe.

1. Contractor shall start around the base of the structure and backfill with the fine clay material in 4” lifts.

1. Contractor shall hand compact with a hand tamper. NOTE: DO NOT MACHINE COMPACT.

1. Contractor shall continue the compaction process until the structure is half backfilled.

1. Contractor shall check and confirm that the stop log boards slide easily in the track.

1. Contractor shall begin backfilling around the pipe with the fine clay material and hand tamp in 4” lifts until at least 3-foot coverage above the pipe is achieved. Contractor shall ensure the clay material is compacted along the pipe to avoid seepage / leaks NOTE: Contractor shall be careful not to damage the anti-seep collars.

1. Contractor shall backfill the remainder of the excavation around the pipes reaching finish grade plus at least 10 inches to allow for settling around the structure and pipe.

1. Contractor shall provide and install a 5’ X 5’ rip rap (D-rock) apron at the intake pipe and exit pipe to protect from erosion and muskrat burrowing.

1. Contractor shall provide and install bar guard and rat guard on pipe

The contractor is encouraged to utilize tracked-machines and/or low-ground-pressure equipment to minimize rutting on existing travel ways and embankments. All ruts on grass-sod embankments resulting from the completion of this project shall be backfilled, compacted, and seeded.

A proposed staging area for material stockpiling is shown in Figure 2. Additional staging areas may be available to the contractor if approved by the Area Representative.

Contractor bids shall be submitted on total cost of project. Linear feet and control structure prices may be separated on separate attachment.

Project Timeline:

All work is to be completed by June 1, 2025. Invoice after completion.

Contract Award:

The contract will be awarded to the lowest responsive and responsible bidder. The accepted bid, per linear foot, and the available project budget will determine the final contracted length of embankment to be armored. Failure to bid on a per linear foot basis may result in the bidder being deemed non-responsive.

The awarded contractor will be required to sign an Addendum to Bid Quote or Personal Services Agreement. Example attached.

All bidders must sign and attach the Standard Affirmation & Disclosure Form to their bid in OhioBuys. This may be signed electronically through Adobe or through a wet signature. If this is not attached, the winning bidder will be asked to sign before a contract can be routed for review.

Site Visit & Point of Contact A pre-bid meeting is scheduled for Monday, March 17, 2025, at 10:00 AM EST, at the Fallsville office (10221 Careytown Road New Vienna, OH 45159). Attendance of the pre-bid meeting by a representative of the bidder is a requirement of this bidding process. Failure to attend will result in a disqualified bid. Site visits may follow this meeting, if desired. To RSVP for the pre-bid meeting, please contact Kash Adams of Chad Snavely by phone: (937)987-2508, or by email ron.adams@dnr.ohio.gov. chad.snavely@dnr.ohio.gov.

Once a contract is awarded, failure of the bidder to have requested a site visit to become familiar with the facility and requirements of the bid will be insufficient reason to support any request to be released from the contract.

Contact Information:

For inquiries or further details concerning this scope of services, please contact:

Figure 1. Proposed Location for Embankment Reconstruction, Stabilization, Armoring and Water Control Structure Replacement.

Figure 2. Proposed Staging Area image1.jpeg image2.png