RFI - Bridges again.

[The Morphetts <grahamm@onthenet.com.au>]

(Request for Information)
Thank you everyone who replied regarding double tracked timber bridges -
your assistance is appreciated and the outcome is that I have decided to
stick with the prototype and retain my double tracked sandstone bridge.

Now - perhaps someone can help with this question:
In Queensland, it is not at all unusual on branch lines to see a railway
line drop down from its given relative level to a lower level to cross a
stream, and then return to the previous level. This is so particularly
with cane tramways, but is also prevalent on older branch lines.
In NSW the crossing of the stream was usually done at more or less the
same height as the rest of the line, but can anyone think of an instance
in NSW where the Qld system was in place?

The question is asked because I'm about to build a bigish timber bridge
on the CCTCR and I'm in design phase. The bridge will be on a curve, be
about 300mm above high water and 450 above low water (the Coramba Creek
has a pump system to make it flow) and its setting is particularly nice
being near a waterfall under palm trees and tree ferns. The "drop down"
feature would be especially picturesque if it can be done correctly.

Thank you!
Graham
--
The Coramba Creek Timber Company's Railway
Web Page:
http://www.onthenet.com.au/~grahamm/cctcr
ICQ #: 8322797