Contract Specialist salary at Illinois State Toll Highway Authority

The average contract specialist salary at Illinois State Toll Highway Authority was $36,345 , which is 41 percent lower than the average salary for this job in Illinois, and 36 percent lower than the national average for this job . Contract Specialist salaries at Illinois State Toll Highway Authority typically range from $22,500 to $49,375 (25th to 75th percentile). The highest reported contract specialist salary was $51,662. There are 5 employees at Illinois State Toll Highway Authority with the job title contract specialist.