How much does a Principal Structural Engineer make in Washington?
As of April 01, 2026, the average salary for a Principal Structural Engineer in Washington is $135,528 per year, which breaks down to an hourly rate of $65.
However, a Principal Structural Engineer's salary can vary significantly. Here’s a look at the typical salary range:
- Top Earners (90th percentile): $156,643
- Majority Range (25th-75th percentile): $126,416 to $146,580
- Entry-Level (10th percentile): $118,121