Senior Inspector salary at Illinois State Toll Highway Authority

The average senior inspector salary at Illinois State Toll Highway Authority was $247,396 , which is 57 percent higher than the average salary for this job in Illinois, and 176 percent higher than the national average for this job . Senior Inspector salaries at Illinois State Toll Highway Authority typically range from $176,614 to $318,178 (25th to 75th percentile). The highest reported senior inspector salary was $318,177. There are 2 employees at Illinois State Toll Highway Authority with the job title senior inspector.