The raw water pump does not like to run dry that long. There is no way to
tell if yours was fried, but it would be likely that it sustained some
damage, like the impeller ends getting melted. It can still pump, even if
damaged but in my mind it would be suspect. If it has been a couple of years
since you replaced the impeller, then as routine maintence ( and peace of
mind) you may consider having the impeller replaced before next trip. A raw
pump failure can cost you big.

--
Ron White
Boat building web address is
www.concentric.net/~knotreel