Well, this can be a problem. However, I've traveled the entire East Coast of the US and I
only remember one overhead that made me nervous - in Pine Island Sound, FL going to
Sanibel. Its listed as 80 feet, but sure looked like it was sagging a bit!

However, the differences between MHW and highest astronomical tide are maybe 3 or 4 feet
in a worst case. I've gone under bridges with 3 or 4 feet of clearance - a few times only
a few inches - but I wouldn't go under a powerline with that little clearance!



"The_navigator©" wrote in message
...
How do you have a tide guage on an overhead wire?

Cheers MC

Jeff Morris wrote:

Well put, Scotty.

But MC does have a point - under the US system you have to check to see if the current
tide is much higher than MHW; in other countries where the datum for bridge clearance
is
the Spring Tide level, or the Large Tides, its a bit easier.

However the best thing to do is to read the gauge board on the bridge and ask the
tender.Can


"Scott Vernon" wrote in message
...

Well, DUH!

"The_navigator©" wrote ...

Hmmm. That's a worry. Might mean you'll need tide tables to decide if
you can pass an overhead...