Bridges and Viaducts in Italy — 345 Listed by Length

• 345entries listed
• 0.7 kmlongest bore
• 1959–2015openings span
• 195.03 kmtotal length

The record table

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

How this table is compiled

Where one of these 334 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 334 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 500 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.

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 195.03 km, which is a number with no engineering meaning but a useful sense of the scale of what is catalogued.

Second and third place go to Furiana I at 0.7 km and Entella at 0.7 km. The table on this page runs to 345 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.

A new scheme in Italy would have to beat 0.7 km to change the head of this table, and that is the figure worth rechecking when one opens. Eighth on the list is D'Arrigo at 0.69 km, which is where the table stops being about record holders and starts being about ordinary infrastructure.

Reading the figures

Further down the table, San Leonardo is recorded at 0.7 km and Infernaccio at 0.7 km. The material on this page is held in 19 captions rather than in running text, 133 words of it, each written against the image or row it belongs to by the compiler who put the page together.

Roughly 59 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 — Siracusa, Motorway and BreBeMi among them — and those names are the index into the length tables where each is recorded with its own figure.

Dates for Italy refer to opening to traffic, not breakthrough, so the 1959 entry was under construction for some years before that. Only 194 of the 345 rows carry anything in the date of opening column, so that field describes a minority of this table and the rest of the rows are recorded without it.

Dated entries run from 1959 to 2015, and the busiest decade is the 1970s with 77 recorded openings. Read down the length (m) column, the 345 values run from 500 m to 698 m with a midpoint at 587 m; the spread rather than the maximum is what says how uneven this set is.

The dated entries fall across 43 different years, which is a rough measure of whether this was a sustained programme or a handful of separate schemes. The ten longest average 0.7 km against 0.58 km for everything below them, and that ratio is the clearest thing this table says about the distribution.