 Chesham also had extensive goods facilities , particularly for coal ; the goods yard was initially equipped with a mobile 5 @-@ ton crane , replaced by a fixed 8 @-@ ton crane between 1898 – 1900 . The outward transport of watercress , a major local industry , also generated significant traffic . During the electrification of the line in 1957 – 60 the station was equipped with a bay platform for passenger trains , to allow it to accommodate both through services to and from Baker Street and the Chalfont & Latimer – Chesham shuttle simultaneously . This bay platform was closed on 29 November 1970 and is now a garden . 
