Re: NSWGR Timber Trestles

["Derick Wuen" <cullend@webone.com.au>]

Barry Campbell wrote in message <376EBDEB.E5E191FB@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

Apologies for cross-post... was intended for aus.rail.models