Memphis District, Army Corp of Engineers - Topographical map sales, provides flood control, maintains navigational channel on the Mississippi River and its tributaries, and provides emergency disaster assistance. Memphis Police Department - Information on precincts, community policing, crime tips, and the academy. Memphis Fire Department - Unofficial site containing news, forums, photos, and calendar. City of Memphis - The official web site for Memphis, Tennessee. Provides information for visitors and Memphians about local events, politics, culture and city government. City of Memphis Public Works - Solid Waste Management - Topics include, collection, disposal, curbside recycling, and yard waste. Code of Ordinances of Memphis - Provides access to the general and permanent ordinances and building codes in a searchable and easy to read format.