Storm Water Detention Pond
In a report prepared by Midwest Testing Services and McCleary Engineering, it was noted that the detention pond on the east campus was eroding but by correcting poor drainage practices and providing proper erosion control the slope of the north ravine could continue to perform well. This information was used by Chamlin & Associates, the civil engineers for the CTC, when planning storm water runoff.
The drainage area consists of approximately 30 acres of asphalt roadways and parking lots, aggregate and grassed areas, and several buildings. The CTC will add to the impervious area within the drainage area and increase the peak storm water runoff rate from the drainage area. In order to mitigate the additional impervious areas created by construction, the dry bottom detention pond is being modified to become a “storm water management area” or a “wetland.” The volume of the storm water management area will be significantly increased in order to decrease discharge rates and will include a permanent water surface with a water depth of between two and four feet. Wetland vegetation will be added to the area for water quality benefits.