Yes they have! At least some of the powerlines from San Bernardino to the
Boulder Dam have been determined eligible. They were originally constructed
to supply power for dam construction, and set records for the
longest/highest voltage etc.

I wasn't involved with the evaluation, but I remember reading the site form
for a project using the powerline corridor. It seemed to suggest that the
30's and 40's were quite an exciting time for powerline construction, with
all sorts of records being constantly broken. There also seemed to be some
detail on the type of tower, so I assume there is some "spotter's guide to
transmission towers" - maybe.

Greig

-----Original Message-----
From: Lyle E. Browning [mailto:[log in to unmask]]
Sent: Wednesday, December 19, 2001 3:57 PM
Subject: Power poles tangent


Has anyone out there done a study and/or
nomination for the older types of
transmission line towers, those wonderful
Erector Set Martians Across The Landscape
which look so good silhouetted against a red
evening sky? Of late, their replacements are
as exciting as and resemble street lamps.
Perhaps there should be a Wright-Patterson
AFB sort of place where several of each type
are left in peace for the eccentric to gaze
upon.

Lyle