090131082 Spring-frog switch on BNSF St. Croix Sub.
Date:
1/31/2009
Location:
Bay City, WI
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Views:
1573
Collection Of:
The Slidebroker image by John Hill
Author:
John Hill
Picture Categories: Track
This picture is part of album:
2009 Outstate Minnesota
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User Comments
Name
Type
Comments
Date
Kenny Ravenscroft
General
Is that supposed to make a smoother ride over the frog?
2/2/2009 3:40:08 PM
The Slidebroker image by John Hill
General
That's basically the intent. Eliminating the frog gap reduces impact vibration and wear on the rail surface. Not universally popular because wear cost savings offset by the expense of the added hardware.
2/3/2009 12:30:55 PM
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