The line was mainly double track, although was still single track and standard gauge, originally using rails that weighed 42 lbs per yard, although by 1837 heavier rails weighing 47--50 lbs per yard were being used.
The line was mainly double track, although was still single track, originally using rails. The line was mainly double track, although was still standard gauge, originally using rails. These rails weighed 42 lbs per yard, although by 1837 heavier rails. These 1837 heavier rails were weighing 47.50 lbs per yard were being used.