"Maximum pool" and "worst case" are two very different things. Worst case
is when the water flows OVER the bridge. Maximum pool is when a lock
operator takes his daily reading and calls in to Section HQ, and only then
is when they start to do anything about it. And then it takes another 12
hours, maybe more, before they can assemble a crew to go out on a dam and
remove flashboards etc. And meanwhile the water is rising.
Normal conditions is when the level is between normal and max.
Do not rely on these numbers, they are only estimates, and will get you
into trouble after every rain.
Fred
Tug 44
From: "D C Mac Macdonald" k2gkk@hotmail.com
Sent: Thursday, April 05, 2012 3:26 PM
To: "Ralph Yost" ralph@alphacompservices.com, "Great Loop List"
great-loop@lists.trawlering.com, "fred@tug44.org" fred@tug44.org
Subject: RE: GL: Western Erie Canal
The bridge height table I downloaded and printed out shows
worst case (maximum pool of 446.7') clearance of 15.3 for
the Cayuga-Seneca Canal at the Lock 4 Guard Gate.
Similar worst case on the Western Erie Canal is 15.34 at
maximum pool of 463' at the railroad bridge near Lock 32.
Height at "normal" pool is shown as 15.94.
Data is that taken from Canal Corp table downloaded yesterday.
** D C "Mac" Macdonald **
"Maximum pool" and "worst case" are two very different things. Worst case
is when the water flows OVER the bridge. Maximum pool is when a lock
operator takes his daily reading and calls in to Section HQ, and only then
is when they start to do anything about it. And then it takes another 12
hours, maybe more, before they can assemble a crew to go out on a dam and
remove flashboards etc. And meanwhile the water is rising.
Normal conditions is when the level is between normal and max.
Do not rely on these numbers, they are only estimates, and will get you
into trouble after every rain.
Fred
Tug 44
----------------------------------------
From: "D C *Mac* Macdonald" <k2gkk@hotmail.com>
Sent: Thursday, April 05, 2012 3:26 PM
To: "Ralph Yost" <ralph@alphacompservices.com>, "Great Loop List"
<great-loop@lists.trawlering.com>, "fred@tug44.org" <fred@tug44.org>
Subject: RE: GL: Western Erie Canal
The bridge height table I downloaded and printed out shows
worst case (maximum pool of 446.7') clearance of 15.3 for
the Cayuga-Seneca Canal at the Lock 4 Guard Gate.
Similar worst case on the Western Erie Canal is 15.34 at
maximum pool of 463' at the railroad bridge near Lock 32.
Height at "normal" pool is shown as 15.94.
Data is that taken from Canal Corp table downloaded yesterday.
* * * * * * * * * * * * *
** D C "Mac" Macdonald **
* OKC & Grand Lake (OK) *
