Mao Cao Street Bridge is a mega highway bridge on provincial highway 1831 in Hunan province crossing Song Li Hong Dao, west branch of Lotus Pond River, Nan Mao Canal and Tuo River in Dongting Lake area, including crossing the archway of the Freezing River, Nan Hanwan Elevated Lotus Pond River Bridge, Nan Hanwan Ramp Bridge and Nan Mao Canal Bridge.