1250-11 Rail expansion joint for MN&S Savage Swing Bridge
Date:
10/1/1982
Location:
Bloomington, MN
Map
Views:
822
Collection Of:
The Slidebroker image by John Hill
Author:
John Hill
Picture Categories: Bridge,Track
This picture is part of album:
1982 Twin Cities Metro
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Date
Jacob Nelson
General
What is/was a rail expansion joint?
3/21/2010 5:28:56 PM
The Slidebroker image by John Hill
General
Rails want to creep longitudinally due to seasonal temperature changes. Where the rails meet at a movable bridge, an open gap with a very close fit is always required. So they put those sliding joints near the edge of the bridge so the rails can move longitudinally without changing the location or size of the rail gaps.
3/21/2010 9:18:29 PM
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