The line is electrified and is owned by the Norwegian National Rail Administration.

The line is single track, standard gauge and electrified at 15 kV  16.7 Hz AC.

The line passes past industrial spurs to among others Per Kure, Coop, Vinmonopolet and then crosses over Økernveien and National Road 150, on 52-and-26-meter (171 and 85 ft) bridges, the latter located 2.20 kilometers (1.37 mi) from Grefsen.

The line continues past spurs to among others Arbor, Hesselberg and Standard Telephones and Cables and then crosses over the road Brobekkveien before reaching Alnabru.

This lasted until 28 November 1902, when the North Line segment between Oslo Ø and Grefsen opened.

[7] The Alna Line passes through a densely built-up neighborhood of Oslo with many jobs.

[8] The National Rail Administration carried out an investigation into the proposals in 2005, but concluded that they would not be economical.

[9] Ruter, the transit agency for Oslo and Akershus, carried out an investigation in 2011 to evaluate if passenger transport would be viable.

[12] The report further called for the stop at Grefsen to be located at Storo Station of the Oslo Metro's Ring Line.