I had my 50ft boat
with 14'8" beam and 8'6" draft
shipped in 2004 with no problem. I know of a friend's 75' race boat
to Chicago this year. The shipper will probably need two chase cars, have to route
off I-5 depending on height, and have an oversize load permit
. Bridge clearance was the routing issue. Additionally, the driver with have restrictions on the hours that the oversize load can be on the road at certain points, i.e. not at night, not in/thru a city at rush hour, etc.
Before you ship, consider yard prices, as I know Seattle is more expensive than Socal.