Bridges and Viaducts in Norway — 58 Listed by Length

• 58entries listed
• 0.47 kmlongest bore
• 1920–2010openings span
• 18.87 kmtotal length

The record table

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

How this table is compiled

Where one of these 58 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 58 rows for Norway are ordered by length, not by date, so the 2010 opening sits well down the table without being any less current.

Lengths for Norway are recorded in metres which is how the operators publish them and why the shortest entry here reads as 197 m and not a rounded figure. The longest entry is 2.4 times the shortest and 1.5 times the median, which is the quickest measure of how uneven the table is.

This page records the bridges and viaducts catalogued for Norway in a tunnel almanac maintained at this address since the late 1990s. Laid end to end the entries on this page would run 18.87 km, which is a number with no engineering meaning but a useful sense of the scale of what is catalogued.

Dated entries run from 1920 to 2010, and the busiest decade is the 2000s with 14 recorded openings. The table on this page runs to 58 rows and records Viaduct, Length (m), Date of opening, Fylke and Section-Notes for each of them, which is the shape the original compiler chose rather than one imposed here.

58 entries fall below a kilometre, short enough that portals and approaches usually decided their cost more than the bore itself. The date of opening column runs from 7 to 2010 across 33 dated rows, and the 1990s alone account for 8 of them, so the building effort here came in waves rather than evenly.

Reading the figures

Roughly 15 of the dated entries opened in this century, which is a rough measure of how much of the network is recent. Read down the fylke column, the 56 values run from 1 to 20 with a midpoint at 15; the spread rather than the maximum is what says how uneven this set is.

A new scheme in Norway would have to beat 0.47 km to change the head of this table, and that is the figure worth rechecking when one opens. Eighth on the list is Støvset at 0.42 km, which is where the table stops being about record holders and starts being about ordinary infrastructure.

The dated entries carry 30 distinct opening years across 90 years, and the median opening year is 1991. The material on this page is held in 21 captions rather than in running text, 141 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 0.44 km against 0.3 km for everything below them, and that ratio is the clearest thing this table says about the distribution. The viaduct column names 58 distinct entries on this page, Stolma and Vrengen among them, each traceable to the operator or administration record it was taken from.

Read down the length (m) column, the 58 values run from 197 m to 467 m with a midpoint at 304 m; the spread rather than the maximum is what says how uneven this set is. Rows are ordered by length, longest first, so the head of the table answers the question most readers arrive with.