Road Tunnels in Denmark — Complete List by Length

• 10entries listed
• 3.52 kmlongest bore
• 1969–2000openings span
• 6.1 kmtotal length

The record table

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

How this table is compiled

Where one of these 7 lengths disagrees with an operator's own figure for Denmark, the table keeps the published value and notes the difference instead of averaging the two. The 7 rows for Denmark are ordered by length, not by date, so the 2000 opening sits well down the table without being any less current.

Lengths for Denmark are recorded in metres which is how the operators publish them and why the shortest entry here reads as 178 m and not a rounded figure. The longest entry is 19.8 times the shortest and 7.7 times the median, which is the quickest measure of how uneven the table is.

Dates for Denmark refer to opening to traffic, not breakthrough, so the 1969 entry was under construction for some years before that. Laid end to end the entries on this page would run 6.1 km, which is a number with no engineering meaning but a useful sense of the scale of what is catalogued.

The dated entries carry 4 distinct opening years across 31 years, and the median opening year is 1988. Read down the length (m) column, the 10 values run from 178 m to 3 520 m with a midpoint at 521 m; the spread rather than the maximum is what says how uneven this set is.

The tunnel column names 10 distinct entries on this page, Drogden and 3. Limfjord among them, each traceable to the operator or administration record it was taken from. The road column sorts these 6 rows into 3 groups, the largest being E 20 with 4, then E 45 with 1 and E 47 with 1.

Reading the figures

The table below lists 10 entries with a recorded length, each giving a name, a length in metres and, where documented, the year of opening. A new scheme in Denmark would have to beat 3.52 km to change the head of this table, and that is the figure worth rechecking when one opens.

Second and third place go to Tårnby at 0.7 km and Limfjord at 0.58 km. 7 of the 10 rows carry an entry in the notes column — 70 per cent of the table — and that column is where the qualifications live: tube counts, closures, boundaries and the reason a figure reads the way it does.

Further down the table, Fredrikssundsvej is recorded at 0.37 km and Lufthavn at 0.29 km. A tunnel list for Denmark reads differently from a neighbouring country's: 1 of these 7 structures pass three kilometres, and the same journey time is bought with one long bore in one country and a dozen short ones in another.

3 of those 10 are recorded as under construction or planned, the longest of them measuring 1.04 km, so the count includes them while every measured figure — the range, the median, the total — describes the 7 rows carrying traffic today: an unopened bore cannot hold a record. Road tunnel lengths are measured portal to portal along the carriageway.

The entries sum to roughly 6.1 km of bore, an average of about 0.87 km each, though that average describes no actual row. 2 of the 7 entries fall within a quarter of the median length, which is how tightly this particular list clusters around its typical structure.