[PRCo] Rt. 51 bridge

[Bob Rathke]

The new bridge is close to the alignment of the old bridge.  However, the
new bridge has both vertical and horizontal camber, which puts it higher
above Saw Mill Run Blvd., and allows for gentler track curves on both ends
of the bridge.

I don't believe that much - if any - of the old bridge sub-structure
remains.

Bob 7/24/03

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----- Original Message -----
From: "Mark McGuire" <macmarka at netzero.net>
To: <Pittsburgh-railways at dementia.org>
Sent: Wednesday, July 23, 2003 4:31 PM
Subject: [PRCo] Old Rails/ Grades


>
>   While we're on the subject of old rails and such, I'd love to see the
area at Black Diamond. Remember the stairs leading up to a grade Derrick? If
anyone is out that way, please take a photo and post it to the list. It's
driving me crazy how I didn't even bother taking a photo of that location.
>   I wonder if anything is left of the old 38A right past Clearview
Loop(now a parking lot I believe).   I believe there is a small stretch of
land before the new line appears.
>   Another thing that has me curious: Is the new Oak Trestle over Rt. 51 in
the exact same place as the old one? I've seen some photos on the Port
Authority website and it almost looks as if I can see the old abutments. Has
anyone ventured here and seen it?