Grand Lake St Marys Breakwall & Dredge Improvements

Ohio Department of Natural Resources

Buyer seeks professional engineering services for a two-phase project at Grand Lake St. Marys State Park. Phase one involves rehabilitation of breakwater structures at Coldwater Creek and Prairie Creek. Phase two requires implementation of beneficial reuse of dredged materials, potentially creating wetlands to treat water, sediment drying areas, and a processing facility. The project aims to provide environmental improvement to the lake without hindering water flows.

• 7/25/2025 - Proposal Due Date
• 12/1/2025 - Professional Services Start
• 1/1/2027 - Construction Notice to Proceed
• 6/1/2028 - Substantial Completion
• 6/1/2029 - Professional Services Completed

• Design rehabilitation of Coldwater Creek and Prairie Creek breakwater structures
• Plan beneficial reuse of dredged materials
• Design internal breakwaters with wetlands to treat water
• Create upland sediment drying areas
• Design sediment processing facility with materials outlet
• Perform geotechnical soil borings and analysis
• Conduct hydrologic, hydraulic and flood routing analyses
• Obtain all regulatory permits (Section 404, 401, floodplain)
• Prepare construction drawings and specifications
• Provide construction administration services