Bridges and Viaducts in Italy — 219 Listed by Length

• 219entries listed
• 1 kmlongest bore
• 1892–2015openings span
• 169.9 kmtotal length

The record table

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

How this table is compiled

Where one of these 206 lengths disagrees with an operator's own figure for Italy, the table keeps the published value and notes the difference instead of averaging the two. The 206 rows for Italy are ordered by length, not by date, so the 2015 opening sits well down the table without being any less current.

Lengths for Italy are recorded in metres which is how the operators publish them and why the shortest entry here reads as 700 m and not a rounded figure. The longest entry is 1.4 times the shortest and 1.2 times the median, which is the quickest measure of how uneven the table is.

A new scheme in Italy would have to beat 1 km to change the head of this table, and that is the figure worth rechecking when one opens. Eighth on the list is Nembro at 0.98 km, which is where the table stops being about record holders and starts being about ordinary infrastructure.

This page records the bridges and viaducts catalogued for Italy in a tunnel almanac maintained at this address since the late 1990s. Laid end to end the entries on this page would run 169.9 km, which is a number with no engineering meaning but a useful sense of the scale of what is catalogued.

Further down the table, Gallipoli is recorded at 0.99 km and Rio Masone Murtas at 0.98 km. Read down the length (m) column, the 219 values run from 700 m to 997 m with a midpoint at 803 m; the spread rather than the maximum is what says how uneven this set is.

Reading the figures

Dated entries run from 1892 to 2015, and the busiest decade is the 1970s with 51 recorded openings. The table on this page runs to 219 rows and records Viaduct, Length (m), Date of opening, Region and Prov for each of them, which is the shape the original compiler chose rather than one imposed here.

Roughly 37 of the dated entries opened in this century, which is a rough measure of how much of the network is recent. The captions name 13 distinct places and structures — Lacotisce-Rabuiese, Atina and Sistiana among them — and those names are the index into the length tables where each is recorded with its own figure.

The dated entries carry 37 distinct opening years across 123 years, and the median opening year is 1984. The material on this page is held in 14 captions rather than in running text, 92 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 0.98 km against 0.82 km for everything below them, and that ratio is the clearest thing this table says about the distribution. The viaduct column names 206 distinct entries on this page, Longano and Temperino among them, each traceable to the operator or administration record it was taken from.

Second and third place go to Temperino at 1 km and Gaggera at 0.99 km. 152 of the 219 rows carry an entry in the notes column — 69 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.