The City of Knoxville has adopted new standard details for COK-10 (Type "B" Cast Iron Frame, Grate and Inlet) and COK-11 (Type "B" Cast Iron Frame, Grate and Inlet (Mountable)). These new details allow for anti-theft measures to be included on catch basin frames and grates. The appropriate frame and grade specified in COK-10 or COK-11 must be used when installing drainage infrastructure in Right-of-Way or on City property. These standards are also recommended for use on private infrastructure, but are not required at this time.
Any new plan submitted on or after May 1, 2015, must use these new standard details for construction in Right-of-Way or City property. Click here to view the new standard details.