- 1915
OAKEY-EVANSLEA [Cecil Plains Bch] opened [31.3km].
- 1953
Com-Eng NSW RM1816 entered service.
Com-Eng NSW RM1819 entered service.
- 1980
DARRA-IPSWICH, ML, electrification opened [STAGE 2].
- 1989
Com-Eng EL3281 entered service.
Researched and compiled by Peter Burkitt, with later additions as sourced. About this list, abbreviations and the full calendar