How much does a On-Site Construction Engineer I make in Illinois?
As of August 01, 2026, the average salary for a On-Site Construction Engineer I in Illinois is $75,700 per year, which breaks down to an hourly rate of $36.
However, a On-Site Construction Engineer I's salary can vary significantly. Here’s a look at the typical salary range:
- Top Earners (90th percentile): $82,387
- Majority Range (25th-75th percentile): $67,100 to $79,200
- Entry-Level (10th percentile): $59,270