Re: NSWGR Timber Trestles

[Barry Campbell <barryC@qimr.edu.au>]

Derick Wuen wrote:
> 
> Stumps me!
> 
> Maybe all track duplications in NSW redid bridges in steel or masonry. The
> engineers (Cowdery, Deane etc) who did the duplication work for the most
> part did not like the standard ("Whitton" ballast-top) timber bridges, and
> had their own designs. But I can't think of a dual-track Deane timber
> bridge, either.
> 
> I boggle at the weight of a two-track ballast-top trestle.
> 
I think Graham means the standard open or transom top trestle that was
the usual bridge on most branch lines and quite a lot of main line
trackage. I've never seen a double track version.

Barry Campbell