The Hancock County commissioners will be asked Tuesday to sign an agreement with the Maumee Watershed Conservancy District, Defiance, authorizing the Stantec engineering firm to reevaluate its flood-control recommendation at a cost of about $375,000.
The conservancy district approved the agreement at its regular meeting this week.
Stantec has proposed widening the river in Findlay, and that plan is proceeding.
Stantec has also proposed constructing three floodwater storage basins in southern Hancock County, a project that could cost $140 million. The basin idea has met with opposition from landowners in those areas.
In August, the conservancy district board asked Stantec to review its recommendations using a new rainfall model, which more closely reflects a modern trend toward frequent and severe flooding in northwestern Ohio.
The new rainfall model uses data collected during storms in recent years, instead of relying on the assumption that the same amount of rain falls throughout the Blanchard River watershed.
Steve Wilson, project manager for the conservancy district, said that along with the updated rainfall model, Stantec now has access to more accurate ground elevations made available through aerial photography.
More soil borings will also be collected in an effort to more accurately reflect soil conditions.
Courier reporter Denise Grant will have more on Saturday.