The Mobile County Public Works - Engineering Department works to offer construction, maintenance and administration services. It focuses in the areas of construction services that include projects with public buildings, utilities, roads, bridges, airport facilities, traffic control devices, environmental protection facilities, boat ramps, seawalls and parks. The department maintains building maintenance, electronic, road and bridge and environment departments. The Mobile County Public Works - Engineering Department is governed by Mobile County, Ala., which additionally manages administration, parks and recreation, environmental and revenue commission departments. It has a population of more than 399,000 residents and covers an area of over 1,200 square miles. The county is located in Mobile, Ala.