The Gotthard Tunnel is not just a modern infrastructure: it is the result of centuries of human ingenuity to cross one of Europe's most formidable natural barriers: the Alps.
The Roman Era: The Tremola Pass
Before the tunnels, there was only the Gotthard Pass (2,106 m).
The Romans and the Trade Route (0–400 AD)
- Used by Romans for trade between northern and southern Europe
- Dangerous route: avalanches, snowstorms, bandits
- Open only May–October (closed in winter)
- Crossing time: 2–3 days on foot with goods
- Goods traded: salt, spices, textiles, wine
The Middle Ages: Devil's Bridge (1230)
The Legend 😈
The legend of the Devil's Bridge in the Schöllenen gorge:
The story:
- The people of Uri could not build a stable bridge over the Reuss
- According to legend, the Devil offered to build it in exchange for the first soul to cross it
- They tricked him by sending a goat across first! 🐐
- The Devil tried to destroy the bridge with a boulder, but a woman drew a cross and he missed
Historical reality:
- Bridge actually built in 1230
- Advanced medieval engineering for the time
- Rebuilt several times (1595, 1830, 1956)
- Today: UNESCO historical monument
- The legendary boulder really exists and weighs about 220 tonnes!
💡 Curiosity: The bridge opened the Gotthard trade route which became the main transalpine route for the next 600 years!
The First Railway Tunnel (1872–1882)
The Vision
In the 1800s, Switzerland dreamt of a direct rail link between northern and southern Europe.
Main promoter: Alfred Escher, Swiss politician and entrepreneur
Construction: 10 Years of Hell
Technical data:
- Work began: 13 September 1872
- Completed: 1 June 1882
- Duration: 10 years exactly
- Length: 15 km (at the time the world's longest tunnel!)
- Depth: Up to 1,700 m below Monte San Gottardo
#### Technical Challenges
1. Infernal heat: Up to 40°C inside the mountain!
2. Underground water: Springs that continuously flooded the workings — up to 40 litres/second in places!
3. Unstable rock: Zones of crumbling rock and collapses
#### The Technology of the Era
- Dynamite: Invented by Alfred Nobel just years earlier (1867)
- Pneumatic drills: New technology at the time
- Electric lighting: One of the first large-scale applications
- 24/7 shifts: Continuous work day and night
- Simultaneous boring: North (Göschenen) and South (Airolo) together
#### The Human Cost 💔
- 199 workers died over the 10 years of construction
- Main causes: premature dynamite blasts, rock falls, machinery accidents, disease (silicosis, tuberculosis), extreme working conditions
- Working hours: 12–14 hours/day, 6–7 days/week
#### The Miracle of the Meeting 🎯
23 February 1880: The two bores met after 8 years of excavation!
Incredible precision:
- Horizontal error: only 33 cm over 15 km!
- Vertical error: only 10 cm!
- With no GPS, lasers, or computers — only mathematics, mechanical theodolites and mercury levels.
💡 Fun fact: The chief engineer, Louis Favre, died of a heart attack in 1879 while inspecting the worksite. He never saw his work completed!
The Inauguration (20 May 1882)
- Present: King Umberto I of Italy, 10,000 spectators
- Impact: Zürich to Milan journey time cut from 3 days to 8 hours!
The Road Tunnel (1970–1980)
The Automobile Boom
By the 1950s–60s, the Gotthard Pass was insufficient:
- Closed 6 months/year (snow)
- Capacity: ~2,000 vehicles/day vs demand of >10,000 vehicles/day
Construction (1970–1980)
Technical specs:
- Length: 16.9 km
- Width: 2 lanes (one per direction)
- Portal altitude: ~1,100 m
- Maximum gradient: 1 %
Technology:
- TBM (Tunnel Boring Machines)
- Pre-stressed reinforced concrete
- 6 advanced ventilation systems
- Automatic fire suppression
- 48 surveillance cameras
#### The Accident During Construction
31 October 1975:
- Explosion during works
- Cause: Pocket of methane gas in the rock (unforeseen)
- 4 workers killed instantly
- Work halted for 4 months; new safety protocols implemented
The Inauguration (5 September 1980)
- First year traffic: 3 million vehicles
- Traffic today: 6+ million vehicles/year
- Was the world's longest road tunnel until 2000
The Base Railway Tunnel (1999–2016)
The Project of the Century
Approval: 1992 (popular vote: 63.5% in favour)
Construction: 1999–2016
Duration: 17 years
Revolutionary features:
- Length: 57.1 km (world's longest tunnel! 🏆)
- Depth: Up to 2,300 m below the mountain
- 2 parallel bores (safety)
- Emergency passages every 325 m
- Final cost: CHF 12.2 billion
World Records 🏆
✅ World's longest railway tunnel (57.1 km)
✅ Europe's deepest tunnel (2,300 m)
✅ Switzerland's most expensive engineering project ever
✅ Greatest volume of rock excavated: 28.2 million tonnes!
The Inauguration (1 June 2016)
- Present: Angela Merkel, François Hollande, Matteo Renzi
- Impact: Train freight capacity up 45%; Zürich–Milan journey reduced to 2h 40min
💡 Curiosity: To celebrate, 100,000 people walked through the tunnel before the official opening!
The 2001 Fire: The Tragedy that Changed Everything
24 October 2001
- A Belgian truck (carrying tyres) collided with a car and caught fire immediately
- Dense smoke invaded the tunnel within minutes
- 11 people died (10 in the fire, 1 later in hospital)
- Fire temperature: over 1,200°C!
- Repair cost: CHF 30 million; tunnel closed for 2 months
The Consequences: New Safety Standards
✅ Automatic sprinklers; smoke detectors every 50 m
✅ Enhanced ventilation: fumes evacuated in 10 minutes
✅ Emergency exits extended: every 1 km (was every 1.5 km)
✅ New traffic rules: no overtaking heavy vehicles; minimum 150 m between trucks; speed limit reduced to 80 km/h
💡 Lesson learned: This tragedy led to new safety regulations in all Alpine tunnels across Europe.
The Future: Second Road Tube
Popular vote: 28 February 2016 — 57% in favour
Why it's needed:
- Current tunnel built in 1980 (45+ years old!)
- Requires major maintenance; closure for works = paralysis of north–south traffic
- 2 tubes = easier evacuation
Timeline: Construction ~2020–2025; completion ~2030–2032
Estimated cost: CHF 3.5–4 billion
Facts & Records
- 6+ million vehicles per year
- Average transit time: 17 minutes
- Max speed: 80 km/h
- Free (included in CHF 40/year Swiss vignette)
- Queue record: 22 km (August 2015, 1 August weekend)
- Wait record: 3 hours 45 minutes (Ferragosto 2018)
Conclusion: A Monument to Engineering
From the Devil's Bridge of 1230 to the world's longest tunnel of 2016, the Gotthard represents 800 years of human ingenuity and determination to overcome natural barriers.
The Gotthard today:
- ✅ The backbone of north–south European transport
- ✅ 6 million vehicles/year (road)
- ✅ 260 freight trains/day (base railway)
- ✅ UNESCO engineering heritage
- ✅ Symbol of Swiss excellence
💡 Final reflection: Every time you cross the Gotthard in 15 minutes, remember that 150 years ago it took 3 days on foot — and that 199 people sacrificed their lives to make possible what we now take for granted.
A tribute to Swiss engineering and the human determination to overcome every obstacle! 🇨🇭⛰️🚂
Historical sources: ASTRA (Swiss Federal Roads Office), AlpTransit Gotthard AG, Historical Archives of Cantons Uri and Ticino, Gotthard Museum (Hospiz), SBB Historic