Performs highly complex transportation operations or maintenance support work such as: contract maintenance and/or material and process inspection; roadway maintenance and repair; operates light and heavy equipment; preventative and minor maintenance on equipment; traffic control; helping the public during emergency situations; and training other employees. Work requires contact with private entities. Employees at this level perform work independently on assignments; however, all unusual issues are referred to the supervisor. Essential Duties: Serve as a work crew project lead ensuring work performed meets project specifications. Inspects traffic control devices and their placement at construction project sites for compliance with specifications for devices, safety laws, rules, regulations and the Texas Manual on Uniform Traffic Control Devices. Trains other employees. Provides support to local law enforcement officials at accident sites; and provides assistance to stranded motorists. Identifies, analyzes, and implements solutions for complex maintenance problems. Maintains highways and rights-of-way; performs highly skilled roadway repairs; erects and repairs guard rails, highway markers and signs; hauls materials and equipment to job sites. Operates complex heavy equipment such as a motor grader, large excavator, heavy bulldozer, crane, herbicide truck, heavy asphalt paving machine, self-propelled asphalt distributor, and profiling/milling machine. Performs preventive maintenance inspections (PMI), routine servicing and minor repairs on equipment and completes various required reports including time-keeping, equipment forms, inventory, accident forms, and PMI. Sands and cleans bridges and roads, posts warning signs, helps the public and performs other work as directed during emergency situations such as floods, tornadoes, hurricanes, snowstorms, accidents, and hazardous material spills. Performs other job responsibilities as assigned.