What is the Cost of Professional Liability Insurance for Structural Engineers?

I was wondering if anyone could ballpark the price of Professional Liability Insurance for a Structural PE in the US who owns his own business beside no employees and bills about 300,000 USD a year. The work is mostly design and consulting work.
Answers:
IF you could find someone to insure you, it would depend on your experience, what type of projects you design (no condos) if you hold a litigation history, what deductible you can show you could pay, and what is the amount you want to insure for.

I recently looked and it be almost 15K/year for 1 mill coverage w 50K deductible

reality check...

300K/year for sole proprietor?


Related Questions:
Business Liability Insurance?   I be hit by a drunk driver contained by ca. i merely have liability insurance where on earth do i find an attorney .?   Small business liability insurance refferal?   What is the average starting net of a liability insurance claims processor?   Where should I take liability insurance for my DJ business?