Railroad Electrification Question

[NW Mailing List]

To the best of my knowledge, most bridges had wire or power bars and frequently complex devices to close the gap at the bridge ends by overlapping the mainland and bridge wire.

A notable exception was the New Haven’s bridge at Cos Cob which had no wire with trains coasting across it. Approaching the bridge, the wire went up to a height above the maximum extension of the pantographs eventually losing contact. Coast across and then under the similarly high wire which came down until contact was re-established.
 
-- Larry Stone
   Sent from my iPad

> On Jan 11, 2024, at 14:18, NW Mailing List via NW-Mailing-List <nw-mailing-list at nwhs.org> wrote:
> 
> 
> I have a question about railroad electrification that I am almost certain was never an issue on the Norfolk and Western or the Virginian (but was probably encountered on the Pennsylvania Rail Road).  Hopefully, some one will know the answer or can direct me a source.
> 
> How was power supplied to electric locomotives that crossed moveable bridges such as draw bridges, swing spans or lift bridges?
> 
> Bill King
> Arlington, Virginia
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