Each pier is 42mm tall. The top section for supporting the bridge deck is 81mm x 16mm.
N Gauge Scale Twin Track Bridge Support Pillar Model Railway Painted JOK44
N Gauge Scale Twin Track Bridge Support Pier Model Railway Painted SLT143
N Gauge Scale Twin Track Bridge Support Pier Model Railway Painted SLT144
N Gauge Scale Twin Track Bridge Support Pier Model Railway Painted GARR105
2x N Gauge Scale Twin Track Bridge Support Pier Model Railway Painted SLT142
GWR Twin Railcar B5 UNPAINTED N Gauge Scale Langley Models Kit 1/148 Trains