Boston & Maine Railroad

Standards Drawings

This page was originally limited to a small number of Timber Bill blueprints, but has now been expanded to share a wider variety of B&M Standards Drawings.

Turnout & Crossover Diagrams
AKA Timber Bills

The five blueprints below of B&M turnout diagrams give dimensional information and tie counts, aka a timber bill, for a variety of turnout sizes.  They are dated from 1929 to 1931, with revisions up to 1935.  Note that these differ slightly from AREA standard turnouts somewhat.   Among other things, the turnout leads (distance from point to frog,) differ, and the switch points are 15', rather than the common 11' and 16' 6" standard switch points.   Please help preserve and share the history of New England railroads.

A11 - No 8 Turnout & Crossover, Rev E 1/1/35
A13 - No 10 Turnout & Crossover, Rev C 1/1/35
A17 - Timber Bill, No 8 & 10 Turnout & Crossover, Rev B 1/1/35
A22 - Timber Bill, No 7 Turnout & Crossover, Rev B 1/1/35
A23 - Timber Bill, No 9 Turnout & Crossover, Rev B 1/1/35

A17 - Timber Bill, No 8 & 10 Turnouts & Crossovers, Rev C 4/11/58
A18 - Timber Bill, No 15 & 20 Turnouts & Crossovers, Rev C 4/11/58
A19 - Timber Bill, No 12 Turnouts & Crossovers, Rev C 4/11/58
A21 - Timber Bill, No 6 Turnouts & Crossovers, Rev B 2/3/36
A22 - Timber Bill, No 7 Turnout & Crossover, Rev B 2/3/36
A23 - No 9 Turnouts & Crossovers, Rev B 2/3/36
A25 - No 15 Turnouts & Crossovers, Rev A 2/23/51
A26 - No 20 Turnouts & Crossovers, Rev A 2/23/51
A17 - Timber Bill, No 8 & 10 Turnouts & Crossovers, Rev C 4/11/58

Posted 2/5/13.  Maintained by Earl Tuson.

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