Coffey County is responsible for maintaining all bridge sized structures and large culvert structures on County maintained and Township maintained roads. A bridge is defined as a structure with a total length measured along the center line from the inside face of abutment to the inside face of opposite end abutment of 20 feet or longer. A large culvert structure is any drainage structure not classified as a bridge, has a waterway opening of 25 square feet or larger.
Coffey County maintains 236 bridge sized structures. 68 of these bridges are classified as Rural Secondary Bridges located on County major collector roads. 188 of these bridges are as Off-System Bridges located on Township roads and County minor collector roads. Coffey County maintains over 3,502 large drainage structures on County and Township maintained roads.