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North America Discuss Canadian and American Prototype railways.


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Old 10-16-2016, 07:25 AM   #11
Lehigh74
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Originally Posted by mopac View Post
Here is a bridge across the Meramec river in valley park, mo. It is a one lane bridge, with double main on either side. This must be a replacement bridge. You can see where the original bridge was.
I'm thinking the supports are extra wide to accommodate a second set of spans and a second track. Maybe the second set of spans never got built or maybe they were built and later removed.
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Old 10-16-2016, 07:32 AM   #12
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Here are a few shots of the old and new route 903 bridges in Jim Thorpe, PA. They span the Lehigh River and the RBMN (former CNJ and LVRR) tracks. The old bridge was built in 1953.

2016-10-15-7182.jpg

2016-10-15-7185.jpg
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Old 10-16-2016, 09:03 AM   #13
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I'm thinking the supports are extra wide to accommodate a second set of spans and a second track. Maybe the second set of spans never got built or maybe they were built and later removed.
What you can't see in my pic, because of brush, The supports are made of 2 different materials. The part you can see is cut stone.
The support under the track is concrete. They just widen the supports for the new bridge. I am guessing the cut stone was done
in the 20's and the concrete part done in the 50's.
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Old 10-16-2016, 09:30 AM   #14
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I was way off. I googled the bridge. Original bridge was built in the 1800s.
This current bridge was opened for traffic in 1923. There was 2 bridges
from 1923 to 1953. In 53 the original bridge was demolished because CTC
came into play.

So it has been a single track bridge on a double track main since 1953.
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Old 10-17-2016, 10:21 PM   #15
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The Delaware River aqueduct between Lackawaxen, PA and New York is another one of my favorites. It was designed by John Roebling for the Delaware and Hudson Canal company. It was used for canal boats from 1851 until 1898 and was converted for highway use around 1900. It is thought to be the oldest standing suspension bridge in the United States.

2014-09-02-3071.jpg

2014-09-02-3072.jpg

2014-07-31-2850.jpg

2014-07-31-2838 crop.jpg
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Old 10-21-2016, 11:25 PM   #16
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My son Mark and I made this replica of a section of the Rockville Bridge for a history project when he was in 7th grade. It's now part of my storage yard for the shelf layout

Attachment 235538

Attachment 235546

Attachment 235554

Attachment 235562
Very nice! Is that carved foam? or?
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Old 10-22-2016, 07:01 PM   #17
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Very nice! Is that carved foam? or?
There is foam board, 1/4" foam siding backer for under the arches, cardboard and wood. The railing is made from brass brazing rod, so Mark also got lessons in soldering.
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Old 01-03-2017, 08:37 AM   #18
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Here is a better shot of the Reading RR bridge in post #8 (less foliage). When I was a kid in the late 50s, I watched many trains go over this bridge including an occasional steamer. We called it the Big Bridge because there was a Little Bridge nearby that carried our street over the same creek.

IMG_7872.jpg
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Old 01-03-2017, 01:14 PM   #19
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starrucca viaduct- near susquehanna, pa.



234.jpg
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Old 01-03-2017, 02:18 PM   #20
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lift bridge near jackson, al.

lift bridge jackson al.jpg
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