ODOT HAN-75-14.39 Bridge Replacement / Blanchard River Mussel Survey – Findlay, Hancock County, Ohio

As part of bridge replacement plans, STONE performed a mussel survey and relocation in the vicinity of the Interstate Route 75 Bridge over the Blanchard River.  An initial survey of the mussels at this location found 13 species of mussels in the vicinity of the bridge, including one species (Truncilla truncata) listed as a Species of Concern in Ohio.  All stream habitats (not just suitable habitats) were then visually inspected, with special attention paid to substrates that could support living mussels. Aquascope viewers were employed during the survey to aid in viewing the substrates.  In total, 637 live mussels were relocated following the Ohio Mussel Survey Protocols for Group 1 streams (USFWS & ODNR 2016).  These included no threatened or endangered species and four species of concern. The survey was conducted within a short time frame so as to fit within the approved field season (prior to October 1) and included coordination and approval with the Ohio Department of Natural Resources.

Thanks to your team for assisting us with this project. Your attention to detail and efficient communication made this job go very smoothly from an environmental standpoint. I am certain that your team also made things easier for our PE and TM, helping them keep things in order while completing the project.