In order to effectively manage a storm water system to prevent flooding, drainage problems and water quality problems, it is essential that the County and the local governments know exactly where storm sewers are located, how they are connected and what condition they are in. In 2006, the Storm Water Department embarked on a program that would develop a comprehensive spatial database in the County’s Geographic Information System (GIS). Once completed, this will enable those managing the storm sewer system to view any component of the system from their computer with a click of a button.
Why Is This Important
A comprehensive, interconnected map of the storm water conveyance system, including pipes, ditches and streams, will improve the County’s ability to manage the system in many ways, such as helping to:
More accurately identify existing problems and their causes
Develop plans for correcting existing problems
More accurately assess potential impacts from future development, and thereby allow steps to be taken to avoid these impacts
Assess the potential for improvements from best management practices before they are selected and constructed
Trace spills and illicit discharges to their source.
What Information is Collected
All components of the storm water conveyance system are mapped, including storm sewers, catch basins, manholes, outlets and other structures. For each structure, information is collected on type of structure, location, size/diameter, material and condition. If problems are found, the appropriate entity (County Engineer, township or village) is notified so corrections can be made.
Inventory Status
The inventory program began in 2006 when Storm Water Department staff and consultants began field mapping all components of the storm sewer system in the Shayler Creek watershed. This effort was completed in July 2007. During the fall and winter of 2007, Clermont County Crews completed mapping the storm sewer system in the Hall Run watershed (Mt. Carmel and Summerside area). In 2008, the inventory program will focus on the Salt Run and Lower East Fork watersheds.