Drammen Line

Drammen Line
Drammen Line
	NSB Class 69 local train units are used on the Drammen Line, here shown at Oslo S, the terminus of the line.
Overview
Native name	Drammenbanen
Owner	Bane NOR
Termini	Oslo S; Drammen;
Stations	17
Service
Type	Railway
Operator(s)	Vy; Flytoget; CargoNet
Rolling stock	Class 69, Class 70, Class 71, Class 72, Class 73
History
Opened	7 October 1872
Technical
Line length	52.86 km (32.85 mi)
Number of tracks	Double
Track gauge	1,435 mm (4 ft 8+1⁄2 in)
Old gauge	1,067 mm (3 ft 6 in)
Electrification	15 kV 16.7 Hz AC
Operating speed	Max. 160 kilometres per hour (99 mph)
Route map
Route map
	Year or
	length in m
	1872–
	1989
	52
	55
	183
	29
	Lierstranda
	lumber terminal
	Holmen Bridge
	over Drammenselva
	Holmen Bridge
	over Drammenselva
	Year or
	length in m

The Drammen Line (Norwegian: Drammenbanen) is a 52.86-kilometre (32.85 mi) railway line between Oslo and Drammen, Norway, which was opened on 7 October 1872. It serves all trains west of Oslo Central Station and is owned by Bane NOR.

The line opened as a 1,067 mm (3 ft 6 in) narrow gauge railway, and rebuilt to standard gauge between 1913 and 1922. In 1922, it became the first line on the national network to be electrified. The Lieråsen Tunnel shortened the line in 1973, and in 1980 the Oslo Tunnel was built, allowing the line to connect to the new Oslo Central Station. The Asker Line runs parallel to the Drammen Line, mostly in tunnels.

At Drammen, the Vestfold Line branches off to the south while the Bergen Line and the Sørlandet Line continue together to Hokksund along the Randsfjorden Line. The entire line has double track due to the heavy traffic on the line. The longest Norwegian railway bridge is just before Drammen where the line crosses the Drammen river. That bridge is 454 metres long.