Pistoia–Bologna railway

Bologna–Pistoia railway
Piteccio Viaduct prior to 1900
Overview
Native nameFerrovia Porrettana
Statusin use
OwnerRFI
LocaleEmilia-Romagna and Tuscany, Italy
Termini
Service
TypeHeavy rail
Operator(s)Trenitalia
History
Opened1864 (1864)
Technical
Line length99 km (62 mi)
Track gauge1,435 mm (4 ft 8+12 in) standard gauge
Electrification3 kV DC
overhead line
Route map

km
From Ancona
FER line from Portomaggiore
0.000
Bologna Centrale
1.935
129.899
Fascio Ravone
to belt line and locomotive depot
127.676
P.M. Santa Viola
{
to Verona
to Milan
)
126.905
Bologna Borgo Panigale
125.325
Casteldebole
(opened 2002)
deviation opened in 1927
123.106
Casalecchio Garibaldi (opened in 2002)
end of double line
FER line to Vignola, opened in 2002
(old route to Casalecchio di Reno, closed in 1995)
Casalecchio–Vignola railway
(old route to Casalecchio FCV, closed in 1975)
122.077
Casalecchio di Reno
118.547
Borgonuovo
116.221
Pontecchio Marconi
112.818
Sasso Marconi
107.911
Lama di Reno
(opened in 1948)
105.289
Marzabotto
103.107
Pian di Venola
(opened in 2004)
99.071
Pioppe di Salvaro
93.432
Vergato
89.078
Carbona
(opened in 1949)
86.690
Riola tunnel (1,384 m)
85.246
85.032
Riola
81.065
Pian di Casale tunnel (2,622 m)
78.443
75.855
Silla
73.367
Porretta Terme
69.890
Ponte della Venturina
(opened in 1909)
394 m
65.714
Molino del Pallone
494 m
63.668
Biagioni-Lagacci
(opened in 1950)
522 m
58.596
Pracchia
FAP / FS (opened in 1863)
617 m
FAP line to Mammiano (closed in 1965)
58.318
Apennine Tunnel (2,727 m)
55.591
55.441
San Mommè
(opened in 1935)
543 m
53.440
Castagno
(opened in 1960)
492 m
53.000
Signorino Tunnel (1.073 m)
51.927
51.077
Corbezzi
(opened in 1881)
435 m
45.096
Piteccio
293 m
38.801
Valdibrana
140 m
35.330
Pistoia Ovest
33.573
Pistoia
(opened in 1850)
52 m

The Pistoia–Bologna railway is an Italian railway connecting Bologna to Pistoia and was the first line through the Apennines between Tuscany and Emilia-Romagna. It is also known in Italian as the Ferrovia Porrettana (Porrettana Railway, named after the spa town of Porretta Terme) or the Transappenninica ("trans-Apennines"). It was officially called the Strada ferrata dell'Italia Centrale (Central Italy Railway) and was officially inaugurated by King Victor Emmanuel II in 1864.

At the time it was an enormous engineering project with its 47 tunnels and 35 bridges and viaducts, with a total length of 99 km. The most difficult section was the 14 km stretch between Pracchia and Pistoia, which had a drop of 500 metres. The project was put in the charge of the French engineer Jean Louis Protche who solved the problem by designing a spiral tunnel between Piteccio and Corbezzi. This solution was then used for the construction of the Gotthard Tunnel. In Porretta Terme a square was dedicated to Protche and Victor Emmanuel II, who opened the line. It was electrified on the three-phase system (3,700 V at 16.7 Hz) in 1927 and re-electrified with 3,000 V DC in 1934.