Specifications include, but are not limited to: Professional engineering services to provide preliminary design, final design, construction bidding documents, soil borings, surveying, permitting, and construction administration for the construction of a watershed separation berm, approximately 4 miles long, located along Little Killbuck Creek (LKC) near Lodi, Ohio in Medina County. The purpose of the project is to construct a fish barrier to prevent the migration of aquatic invasive species (e.g. invasive carp) between the Ohio River watershed and the Lake Erie watershed. The Great Lakes Mississippi River Interbasin Study (GLMRIS), conducted by the United States Army Corps of Engineers, identified LKC as a pathway for migration of invasive carp and other aquatic invasive species between the Ohio River and Lake Erie basins, during flooding conditions. To sever this connection, ODNR proposes a watershed separation berm to prevent aquatic invasive species from moving between the watersheds. The proposed watershed separation berm is located on private property, within agricultural fields currently producing row crops. Temporary and permanent easement acquisitions will be needed prior to construction. In general the scope of the project consists of the following proposed elements: 4-mile long berm, constructed with stone (e.g. Type D Rip-Rap); subgrade preparation beneath the berm; drainage modifications to manage surface water; drainage improvements to maintain current irrigation, dewatering and pumping operations; vertical realignment of Garden Isle Road and Franchester Road, in order to match the elevations of the roadways to the elevations of the berm at the crossing locations; ancillary roadway improvements to support the vertical realignments, such as driveway, culvert, mailbox and signage relocations; temporary access driveways and material laydown yards; permanent access driveways; and revegetation of disturbed areas. The height of the berm will vary from 2 feet to 10 feet above the existing ground surface, in order to create a consistent crest elevation. Stream and wetland impacts are anticipated and will need to be minimized by the selected firm’s design.
