Re: Small South Park bridges
Posted by
Bill Uffelman on
URL: http://c-sng-discussion-forum.254.s1.nabble.com/Small-South-Park-bridges-tp2268p2287.html
Going from memory but I believe that the C&S reinforced several of the bridges with additional stringers in later life -- Rocky Mountain Railroad Journal drawings as I recall -- all of my references are still in storage.
Bill Uffelman
Ocean View DE
On Friday, May 15, 2015 3:03 PM, Jim Courtney [via C&Sn3 Discussion Forum] <[hidden email]> wrote:
It is interesting to contrast the differences between C&S and D&RGW/RGS trestle construction.
The D&RG/RGS used 6 stringers per span, the C&S evidently 8 stringers (but smaller?).
The D&RG/RGS used 8"x8" bridge ties spaced 4" apart. The C&S appears to use 8x8 ties spaced further apart, likely 8 inches.
The D&RG/RGS bolted the outside guard timbers to every 5th or 6th tie. The C&S evidently bolted the timbers to every tie, with bolts offset every other tie.
Great detail photos for bridge building!
Jim Courtney
Poulsbo, WA