Tunnels and Viaducts on the A04 Motorway in Italy

260 rows are rendered in total, so 159 of them carry a note or a blank where a length belongs and are shown without being counted. The middle half of the table runs from 0.04 km to 0.18 km, and that band is where most of the engineering on this page actually sits.

The median entry measures 0.08 km, so half the table sits below that and half above, which is a better guide to the typical structure here than the headline figure. The shorter half of the table totals 2.07 km against 14.9 km for the longer half, from the same number of rows.

99 entries fall below a kilometre, short enough that portals and approaches usually decided their cost more than the bore itself. Tagliamento at 1.1 km and Torre at 0.82 km follow it, and lengths are given per carriageway because the two bores of a dual route are rarely cut to the same length.

101entries listed
1.26 kmlongest bore
16.97 kmtotal length

The record table

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

Tunnels and Viaducts on the A04 Motorway in Italy, by Kilometre Point
Tunnel / Viaduct	Direction Trieste	Direction Torino	Notes
			Region Piemont – Prov. TO
Ferrovia Torino-Milano	180 m	180 m
			Exit Torino Abbadia di Stura
			Connections A05 Aosta- D03 – A55 Tangenziale Torino
	-	Totalerg	Service Area “Settimo Nord”
	ENI	-	Service Area “Settimo Sud”
			Exit Settimo Torinese
Ferrovia del Canavese	x m	x m
Bealera nuova di Settimo	36 m	36 m
			Exit Volpiano Sud - Brandizzo Ovest
Bendola	24 m	24 m
			Exit Brandizzo Est
Torrente Malonetto	x m	x m
Malone	248 m	248 m
			Exit Chivasso Ovest
Orco	383 m	383 m
Rio Palazzolo	x m	x m
Gora San Marco
RFI Chivasso-Aosta
			Exit Chivasso Centro
Gora della Campagna
			Exit Chivasso Est
			Exit Rondissone
			Toll Barrier Rondissone
	Esso	-	Service Area "San Rocco Sud"
Canale del Molino
Dora Baltea	725 m	725 m	Provincial boundary TO – VC
Canale Del Rotto	36 m	36 m
Canale Depretis	36 m	36 m
	-	IP	Service Area “Cigliano Nord”
			Exit Borgo d'Ale
Naviglio di Ivrea-Naviglio di Martinetto	x m	x m
			Connections R04 (A4/A5) Aosta – D36 Stroppiana
			Exit Santhià
FS Santhià - Biella / Roggione di Biella	24 m	24 m
Elvo	317 m	317 m
Canale S.Damiano
Canale Vanoni
			Exit Carisio
Odda
Linea FS Santhià-Arona	115 m	115 m
SS 230	65 m	65 m	Dismitted for TAV line
Cervo	139 m	139 m	Dismitted for TAV line
Cervo	248 m	248 m
Roggia Berzetti
Rio Ronzano
			Exit Balocco
Druma	24 m	24 m
Rio Don Grosso
Canale Rovasenda	40 m	40 m	Dismitted for TAV line
Torrente Rovasenda	51 m	51 m
	Total	Tamoil	Service Areas “Villarboit”
Torrente Marchiazza	15 m	15 m
Roggia Orcale
Rio Dondoglio
			Exit Greggio
Sesia	394 m	394 m	Provincial boundary VC - NO
Cavo Sfregio
Roggia Sella Baraggia
Canale diramatore Alto Novarese
			Connection A26 Genova Voltri - Gravellona Toce
Roggia Molinara di Vicolungo
			Exit Biandrate-Vicolungo
Roggia Molinara di Gargarengo - Busca	30 m	30 m
Canale Cavour	113 m	113 m
Cavo Pozzi
Cavo della Cattedrale
			Exit Novara Ovest
Agogna	77 m	77 m	Dismitted for TAV line
Agognate	1 260 m	1 260 m
Canale Q.Sella	77 m	77 m
Terdoppio	41 m	41 m
	Totalerg	Total-Shell	Service Areas “Novara”
			Exit Novara Est
Canale Vigevano	40 m	40 m
Langosco	40 m	40 m
Canale Sforzesco	40 m	40 m
Ticino	347 m	347 m	Regional boundary Piemont - Lombardy / Provincial boundary NO - MI
Naviglio Grande	35 m	35 m
			Exit Marcallo - Mesero
			Exit Arluno. Arluno tunnel ( 121 m ) on ramp
Pregnana	356 m	331 m
		-	Exit Rho
	Tamoil	-	Service Area “Rho Sud”
Canale scolmatore Olona
		-	Enter Rho (only direction Torino)
	-		Connection A50 Tangenziale Ovest Milano
			Toll Barrier Milano Ghisolfa
		-	Connection A50 Tangenziale Ovest Milano
Olona	52 m	52 m
SS 33	65 m	65 m
	-	Q8	Service Area “Pero Nord”
			Exit Pero - Fiera Milano
	Ip-Q8	Q8	Service Areas “Pero” (dismitted)
Scalo Ferroviario Fiorenza	74 m	74 m
RFI Torino-Milano	88 m	88 m
Torrente Fugon	x m	x m
			Connection A8 Varese / D07 Exit Milano Certosa
	-	Esso	Service Area “Novate Milanese Nord”
			Exit Cormano
	Esso	Totalerg	Service Areas “Lambro”
			Exit Milano V.le Zara-Sesto S.Giovanni-Cinisello B.- S.S.36
			Connection A52 Tangenziale Nord Milano
			Provincial boundary MI - MB
			Toll Barrier Milano Est
Lambro	18 m	18 m
			Connection A51 Tangenziale Est Milano
			Exit Agrate
			Connection A58 TEM -Tangenziale Esterna Est- Motorway Melegnano (A1)
	Agip	Agip	Service Areas “Brianza”
			Exit Cavenago - Cambiago
			Provincial boundary MB - MI
			Exit Trezzo d’Adda
Adda	165 m	165 m	Provincial boundary MI – BG
			Exit Capriate
Brembo	83 m	83 m
	Q8	Esso	Service Areas “Brembo”
			Future Connection Pedemontana Lombarda Motorway Osio Sotto-Cassano Magnago (A8)
			Exit Dalmine
			Exit Bergamo
Serio	164 m	164 m
			Exit Seriate
Cherio	21 m	21 m
			Exit Grumello - Telgate
			Exit Ponte Oglio. Viaduct Oglio ( 280 m ) on exit ramps
Oglio	280 m	280 m	Provincial boundary BG - BS
			Exit Palazzolo
	Esso	Totalerg	Service Areas “Sebino”
			Exit Rovato
			Exit Ospitaletto
	IP	Erg	Service Areas “Val Trompia”
Mella	30 m	30 m
			Exit Brescia Ovest
			Connection A21 Piacenza – Exit Brescia Centro
	Agip	Esso	Service Areas “San Giacomo”
			Exit Brescia Est - Connection A21racc
	P	P	Parking Areas "Campagnola"
Chiese	88 m	88 m
			Exit Desenzano
	Totalerg	Totalerg	Service Areas “Monte Alto”
			Exit Sirmione
Mincio	152 m	152 m	Regional boundary Lombardy - Veneto / Provincial boundary BS - VR
			Exit Peschiera
	P	P	Parking Areas "Val di Sona"
			Exit Sommacampagna
	Agip	-	Service Area “Monte Baldo Sud”
	-	Agip	Service Area “Monte Baldo Nord”
			Connection A22 Modena – Brennero
			Exit Verona Sud
Canale Giuliani Milani	77 m	77 m
Canale SADE	24 m	24 m
Adige	281 m	281 m
			Exit Verona Est
Mezzano	41 m	41 m
Illasi	30 m	30 m
	Esso	Agip	Service Areas “Scaligera”
	P	-	Parking area "San Lorenzo Est"
			Exit Soave
Tramigno	30 m	30 m
Alpone	65 m	65 m
Aldegà	41 m	41 m
Chiampo	x m	x m
	-	P	Parking area "San Lorenzo Ovest"
			Provincial boundary VR - VI
			Exit Montebello
Acquetta	24 m	24 m
Guà	77 m	77 m
			Exit Montecchio
			Connection SPV Pedemontana Veneta toll Highway
	-	Agip	Service Area “Villa Morosini Nord”
Retrone I°	41 m	41 m
			Exit Vicenza Ovest
Retrone II°	95 m	95 m
Bacchiglione	67 m	67 m
Sant' Agostino	349 m	295 m
Madonna dei Berici	621 m	608 m
			Exit Vicenza Est
Tesina	112 m	112 m
			Connection A31 Piovene Rocchette - Badia Polesine
	Agip	-	Service Area “Tesina Est”
Tesinella	24 m	24 m
			Exit Grisignano
Ceresone Grande	41 m	41 m	Provincial boundary VI - PD
Ceresone Piccolo	36 m	36 m
Canale Brentella	89 m	89 m
	Esso	Q8	Service Areas “Limenella”
			Exit Padova Ovest
SP 33 Noventana	54 m	54 m
			Exit Padova Est
			Connection A13 Bologna
Brenta	169 m	169 m
SS 11	41 m	41 m
Fiumicello	41 m	41 m
Tergola	36 m	36 m
	Agip	Agip	Service Areas “Arino”
			Connection Venezia Ovest A57 “Tangenziale di Mestre”
San Silvestro	300 m	300 m
Caltana	180 m	180 m
Canale Taglio	100 m	100 m
		-	Exit Spinea
Spinea	280 m	280 m	Canale Menegon
	-		Exit Spinea
Miranese	360 m	360 m
Rio Cimetto	30 m	30 m
Linea RFI Venezia-Trento	630 m	630 m
Marzenego	130 m	130 m
			Exit Martellago
via XXV Aprile	150 m	150 m
Castellana	380 m	380 m
Dese	60 m	60 m
Moglianese	290 m	290 m
Zero	60 m	60 m
Pontebbana	450 m	450 m
			Exit Preganziol
Terraglio Est	180 m	180 m
			Connection A27 Belluno-Venezia
Autostrada A27	70 m	70 m
			Connection Venezia Est A57 “Tangenziale di Mestre”
Sile	89 m	89 m	Provincial boundary VE-TV
Musestre	29 m	29 m
			ex Toll Barrier Venezia Est (dismitted)
Vallio	24 m	24 m	Provincial boundary TV-VE
			Exit Meolo-Roncade
Meolo	29 m	29 m
Piave	475 m	475 m
			Exit San Donà di Piave-Noventa
Grassaga	24 m	24 m
Bidoggia	29 m	29 m
	Shell	Tamoil	Service Areas “Calstorta”
			Exit Cessalto
Canale Piavon	29 m	29 m
Livenza	137 m	137 m	Provincial boundary TV-VE
Canale Malgher	125 m	125 m
			Exit San Stino di Livenza
Canale Fosson	10 m	10 m
Loncon	41 m	41 m
Reghena	75 m	75 m
			Connection A28 Conegliano – Exit Portogruaro
Lemene	53 m	53 m
	Esso	Agip	Service Areas “Fratta”
			Exit Alvisopoli
Tagliamento	1 104 m	1 104 m	Regional boundary Veneto-Friuli Venezia Giulia. Provincial boundary VE-UD
			Exit Latisana- Ronchis
Stella	101 m	101 m
Cormor	84 m	84 m
			Exit Porpetto – S.Giorgio di Nogaro
	Tamoil	Agip	Service Areas “Gonars”
			Connection A23 Tarvisio – Austria border
			Exit Palmanova
Torre	819 m	819 m	Provincial boundary UD- GO
			Connection A34 Gorizia – Slovenija border
Isonzo	746 m	746 m
			Exit Redipuglia-Monfalcone Ovest
			Toll Barrier Trieste Lisert
			Exit Monfalcone Est
	Agip	Total	Service Areas “Duino”
			Exit Duino / Prov. TS
			Exit Sistiana
			Connection RA13 (R37 ) - Trieste

How this table is compiled

The three longest entries alone account for 3.18 km of the 16.97 km on this page, which is 19 per cent of the total from 3 of 101 rows. The route crosses 2 provinces, recorded in the note column by their vehicle-registration codes (TO, TS), which is how the operator identifies a section.

The 148 entries are grouped on the page under 66 headings — connection venezia ovest a57 “tangenziale di mestre” (10), exit martellago (6), exit novara ovest (5), exit novara est (5) and exit soave (5) — a classification the table carries as section breaks rather than as a column of its own.

Between the longest and the tenth-longest the drop is 0.87 km, which is the part of the table that changes when a single scheme opens. Where one of these 101 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.

Lengths for Italy are recorded in metres which is how the operators publish them and why the shortest entry here reads as 21 m and not a rounded figure. The longest entry is 60.0 times the shortest and 16.4 times the median, which is the quickest measure of how uneven the table is.

This page records the structures catalogued along the A04 in Italy, in a tunnel almanac maintained at this address since the late 1990s. The captions name 53 distinct places and structures — Tangenziale, Venezia and Aosta among them — and those names are the index into the length tables where each is recorded with its own figure.

Reading the figures

The route table lists 101 structures with a recorded length, giving both carriageways where the two bores differ. The material on this page is held in 20 captions rather than in running text, 148 words of it, each written against the image or row it belongs to by the compiler who put the page together.

A new scheme in Italy would have to beat 1.26 km to change the head of this table, and that is the figure worth rechecking when one opens. The eighth longest is Piave at 0.48 km, which is about where this record stops being about record holders and starts being about ordinary infrastructure.

The twelfth longest, Castellana at 0.38 km, sits close enough to its neighbours that which of them ranks higher depends on how each was measured. On 3 of the structures here the two carriageways are not the same length, which is why the archive records each direction separately rather than one figure per crossing.

Read down the direction trieste column, the 104 values run from 10 to 1 260 with a midpoint at 76; the spread rather than the maximum is what says how uneven this set is. Jet fans hung from the crown are cheap to add and are the usual retrofit when traffic outgrows the original design.

The next two longest are Tagliamento at 1.1 km and Torre at 0.82 km. A tunnel list for Italy reads differently from a neighbouring country's: 0 of these 101 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.

Questions about Italy

What is the longest structure in Italy?

On the figures recorded here it is Agognate, at 1.26 km. It is the longest of the 101 entries recorded here, measured by bore length rather than span, cost or construction difficulty.

How many structures are listed for Italy?

101 entries with a recorded length appear on this page, from 0.02 km at the short end to 1.26 km at the top, with the middle of the set around 0.08 km. The table renders 260 rows in total; the rest carry a note or a blank where a length belongs.

What is a typical length among the structures listed for Italy?

The median entry measures 0.08 km and the middle half of the table runs from 0.04 km to 0.18 km. The headline figure of 1.26 km is the outlier, not the norm, which is why the median is the more useful number when comparing one national list against another.

How close is the top of the Italy table?

The longest stands 0.16 km clear of the next entry, and nothing else comes within ten per cent of it. A newly announced scheme therefore has to beat 1.26 km to displace Agognate.

How many structures does this route carry?

101 named tunnels and viaducts have a recorded length on this route, the longest being Agognate at 1.26 km, followed by Tagliamento at 1.1 km and Torre at 0.82 km; 94 of the 101 are under 500 metres.

Other pages in this section

Operators and administrations

autobspd.it autobspd.it
Autostrade s.p.a. (section Genova – Savona) autostrade.it
Autovie Venete s.p.a autovie.it
SATAP s.p.a. (A4 Torino - Milano) satapweb.it
stradeanas.it stradeanas.it

This page listed 7 external addresses; 5 of them still hold the material they were listed for and are shown above. The other 2 were checked against the content of the page each leads to, not merely its status code, and did not survive it.

Cite this page

Tunnels and Viaducts on the A04 Motorway in Italy, by Kilometre Point. The World's Longest Tunnels. https://www.lotsberg.net/data/italia/A04.html

Tunnels and Viaducts on the A04 Motorway in Italy, by Kilometre Point