Road Tunnels in Norway — Complete List by Length, Part 1000

• 162entries listed
• 1.97 kmlongest bore
• 1938–2020openings span
• 225.77 kmtotal length

The record table

How this archive measures: lengths, bores, dates and ordering

How this table is compiled

The three longest entries alone account for 5.88 km of the 225.77 km on this page, which is 3 per cent of the total from 3 of 162 rows. The shorter half of the table totals 94.03 km against 131.74 km for the longer half, from the same number of rows.

Where one of these 162 lengths disagrees with an operator's own figure for Norway, the table keeps the published value and notes the difference instead of averaging the two. The 162 rows for Norway are ordered by length, not by date, so the 2020 opening sits well down the table without being any less current.

Dated entries run from 1938 to 2020, and the busiest decade is the 2000s with 38 recorded openings. The table on this page runs to 162 rows and records Tunnel, Length, Date of opening, Fylke (County) and Notes for each of them, which is the shape the original compiler chose rather than one imposed here.

Second and third place go to Tuftås at 1.96 km and Otterstein at 1.95 km. Read down the length column, the 156 values run from 1 004 m to 1 965 m with a midpoint at 1 359 m; the spread rather than the maximum is what says how uneven this set is.

This page records the road tunnels catalogued for Norway in a tunnel almanac maintained at this address since the late 1990s. The date of opening column runs from 1 to 19932011 across 119 dated rows, and the 1990s alone account for 30 of them, so the building effort here came in waves rather than evenly.

Reading the figures

A new scheme in Norway would have to beat 1.97 km to change the head of this table, and that is the figure worth rechecking when one opens. The longest entry is 2.0 times the shortest and 1.5 times the median, which is the quickest measure of how uneven the table is.

Roughly 62 of the dated entries opened in this century, which is a rough measure of how much of the network is recent. The captions name 10 distinct places and structures — Kvaløya, Ringvassøya and Opera among them — and those names are the index into the length tables where each is recorded with its own figure.

Dates for Norway refer to opening to traffic, not breakthrough, so the 1938 entry was under construction for some years before that. Laid end to end the entries on this page would run 225.77 km, which is a number with no engineering meaning but a useful sense of the scale of what is catalogued.

The dated entries carry 55 distinct opening years across 82 years, and the median opening year is 1992. The material on this page is held in 10 captions rather than in running text, 67 words of it, each written against the image or row it belongs to by the compiler who put the page together.

The ten longest average 1.93 km against 1.36 km for everything below them, and that ratio is the clearest thing this table says about the distribution. The tunnel column names 156 distinct entries on this page, Myrland and Tuftås among them, each traceable to the operator or administration record it was taken from.