Sir William Arrol & Co.’s Forth Bridge Opens as the World’s Longest Cantilever Span

1915 Çanakkale Bridge Opens as World's Longest Suspension Bridge

1915 Çanakkale Köprüsü, Lapseki, Çanakkale, Turkey

Starts 03/18/2022CONFIRMED 90% CONFIDENCE4.5 years agoHappened as dated, per the source^[1]: "opened for traffic Friday in a ceremony attended by President Recep Tayyip Erdoğan."

Turkey opened the 1915 Çanakkale Bridge across the Dardanelles, taking the title of the longest suspension bridge span on Earth.

$2.8B

0.73

Danube Valley Bridge Opens in Linz, Austria

Danube Valley Bridge, Linz, AustriaASFINAG

Starts 11/15/2024CONFIRMED 89% CONFIDENCE1.9 years agoHappened as dated, per the source^[1]: "The Danube Valley Bridge and this phase of the A26 opened to the public in November 2024".

Austria's motorway operator ASFINAG opened the new Danube Valley Bridge and its connecting tunnels in Linz, the world's longest earth-anchored suspension bridge, completing the first phase of the A26 Westring motorway.

€305M

0.68

The Millau Viaduct Opens to Traffic

Viaduc de Millau, Millau, Aveyron, FranceEiffage

Starts 12/16/2004CONFIRMED 78% CONFIDENCE21.8 years agoHappened as dated, per the source^[1]: the viaduct "was inaugurated on 14 December 2004" and "goes into service" on December 16, 2004.

Norman Foster's Millau Viaduct, the tallest bridge in the world, opened over southern France's Tarn valley, completing the A75 motorway route between Paris and the Mediterranean.

0.66

Chenab Rail Bridge Opens as World's Highest Railway Bridge

Chenab Bridge, Reasi district, Jammu and Kashmir, India

Starts 06/06/2025CONFIRMED 89% CONFIDENCE1.3 years agoHappened as dated, per the source^[1]: "PM Modi inaugurates Chenab Bridge, world's highest rail arch bridge in J&K."

India inaugurated the Chenab Bridge, a steel arch railway bridge standing 359 metres above the Chenab River in the Himalayan foothills of Jammu and Kashmir.

0.65

Strait of Messina Bridge Complete

Strait of Messina, ItalyStretto di Messina

Starts 12/01/2032SCHEDULED 76% CONFIDENCEin 6.2 yearsGiven as scheduled, per en.wikipedia.org^[1]: "…should begin by 2024, with the project scheduled for completion in 2032.[47] On 31 March, the Itali…"

A proposed 3.3 km single-span suspension bridge linking Sicily to the Italian mainland, which would be by far the longest span ever built. Estimated date.

€13.5B

0.65

Transport09/14/2026@ThePinGang

Hampton Roads Bridge-Tunnel Expansion

Hampton Roads Bridge-Tunnel, Norfolk, Virginia, USAVirginia Department of Transportation

Starts 08/27/2027SCHEDULED 83% CONFIDENCEin 338 daysGiven as scheduled, per VDOT and the source^[1]: "the revised project schedule sets... a final completion date for August 27, 2027."

Virginia is expanding the world's first bridge-tunnel, adding new tubes and widened approaches at Naval Station Norfolk, the largest naval base on Earth, more than 50 years after it first opened.

$4B

0.64

Mont Cenis Base Tunnel Opens

Val-Cenis, Savoie, France

TELT

Starts 12/31/2033SCHEDULED 84% CONFIDENCEin 7.3 yearsGiven as scheduled, per the source^[1]: the base tunnel "is expected to be commissioned by the end of 2033"; telt.eu^[2] confirms "La date d'achèvement est prévue en 2033", a year later than the earlier 2032 target.

At 57.5 km, the Mont Cenis Base Tunnel will be the world's longest rail tunnel, carrying the new Lyon–Turin railway under the Alps between Saint-Jean-de-Maurienne, France, and Susa, Italy.

€11.1B

0.63

Gordie Howe International Bridge Opens

Detroit, Michigan

Starts 07/27/2026CONFIRMED 93% CONFIDENCE58 days agoStated as firm, per en.wikipedia.org^[1]: "…ridge tolls. Construction of the bridge was completed in June 2026, inaugurated on July 24, 2026, an…"

A 853-metre cable-stayed span over the Detroit River, the longest in North America, carrying the busiest US-Canada trade corridor. Estimated date.

$6.4B

0.63

Hamburg Port Authority Opens the Rethebrücke as Europe's Largest Rail Bascule Bridge

Rethe Canal, Hamburg, GermanyHamburg Port Authority

Starts 12/15/2017CONFIRMED 87% CONFIDENCE8.8 years agoHamburg Port Authority's^[3] press release states the Rethebrücke, Europe's largest rail bascule bridge, went into operation on 15 December 2017.

Hamburg Port Authority put the new Rethebrücke rail bascule bridge into operation over the Rethe canal, replacing the original 1934 lift bridge and becoming Europe's largest rail bascule bridge.

0.63

The Channel Tunnel Opens

Channel Tunnel, Folkestone, United Kingdom

Starts 05/06/1994CONFIRMED 78% CONFIDENCE32.4 years agoHappened as dated, per the source^[1]: the tunnel "was officially opened on May 6, 1994," presided over by Queen Elizabeth II and President Mitterrand.

The $15BN Channel Tunnel opened, linking Britain to mainland Europe by rail for the first time since the last Ice Age, after six years of construction under the English Channel.

$15B

0.63

Architecture09/15/2026@BuildDesk

Chacao Channel Bridge Opens

Chacao Channel, ChileHyundai Engineering & Construction

Starts 06/01/2029ESTIMATED 63% CONFIDENCEin 2.7 yearsGiven as a target, not a fixed date, per the pin description: "…ecting Chiloé Island to mainland Chile. Estimated date.…"

South America's longest suspension bridge, finally connecting Chiloé Island to mainland Chile. Estimated date.

$740M

0.63

One Za'abeel Opens With the World's Longest Cantilever

One Za'abeel, Dubai, UAEIthra Dubai

Starts 02/10/2024CONFIRMED 80% CONFIDENCE2.6 years agoHappened as dated, per the source^[1]: "The development was completed in December 2023 and officially opened on 10 February 2024."

Dubai's One Za'abeel opened to the public, its twin towers joined by The Link, a 230-metre skybridge that went on to set the Guinness World Record for longest cantilevered building.

AED 3.7B

0.76

1915 Çanakkale Bridge Opens as World's Longest Suspension Bridge

1915 Çanakkale Köprüsü, Lapseki, Çanakkale, Turkey

Starts 03/18/2022CONFIRMED 90% CONFIDENCE4.5 years agoHappened as dated, per the source^[1]: "opened for traffic Friday in a ceremony attended by President Recep Tayyip Erdoğan."

Turkey opened the 1915 Çanakkale Bridge across the Dardanelles, taking the title of the longest suspension bridge span on Earth.

$2.8B

0.73

Danube Valley Bridge Opens in Linz, Austria

Danube Valley Bridge, Linz, AustriaASFINAG

Starts 11/15/2024CONFIRMED 89% CONFIDENCE1.9 years agoHappened as dated, per the source^[1]: "The Danube Valley Bridge and this phase of the A26 opened to the public in November 2024".

€305M

0.68

The Millau Viaduct Opens to Traffic

Viaduc de Millau, Millau, Aveyron, FranceEiffage

Starts 12/16/2004CONFIRMED 78% CONFIDENCE21.8 years agoHappened as dated, per the source^[1]: the viaduct "was inaugurated on 14 December 2004" and "goes into service" on December 16, 2004.

Norman Foster's Millau Viaduct, the tallest bridge in the world, opened over southern France's Tarn valley, completing the A75 motorway route between Paris and the Mediterranean.

0.66

Chenab Rail Bridge Opens as World's Highest Railway Bridge

Chenab Bridge, Reasi district, Jammu and Kashmir, India

Starts 06/06/2025CONFIRMED 89% CONFIDENCE1.3 years agoHappened as dated, per the source^[1]: "PM Modi inaugurates Chenab Bridge, world's highest rail arch bridge in J&K."

India inaugurated the Chenab Bridge, a steel arch railway bridge standing 359 metres above the Chenab River in the Himalayan foothills of Jammu and Kashmir.

0.65

Strait of Messina Bridge Complete

Strait of Messina, ItalyStretto di Messina

A proposed 3.3 km single-span suspension bridge linking Sicily to the Italian mainland, which would be by far the longest span ever built. Estimated date.

€13.5B

0.65

Transport09/14/2026@ThePinGang

Hampton Roads Bridge-Tunnel Expansion

Hampton Roads Bridge-Tunnel, Norfolk, Virginia, USAVirginia Department of Transportation

Starts 08/27/2027SCHEDULED 83% CONFIDENCEin 338 daysGiven as scheduled, per VDOT and the source^[1]: "the revised project schedule sets... a final completion date for August 27, 2027."

Virginia is expanding the world's first bridge-tunnel, adding new tubes and widened approaches at Naval Station Norfolk, the largest naval base on Earth, more than 50 years after it first opened.

$4B

0.64

Mont Cenis Base Tunnel Opens

Val-Cenis, Savoie, France

TELT

At 57.5 km, the Mont Cenis Base Tunnel will be the world's longest rail tunnel, carrying the new Lyon–Turin railway under the Alps between Saint-Jean-de-Maurienne, France, and Susa, Italy.

€11.1B

0.63

Gordie Howe International Bridge Opens

Detroit, Michigan

A 853-metre cable-stayed span over the Detroit River, the longest in North America, carrying the busiest US-Canada trade corridor. Estimated date.

$6.4B

0.63

Hamburg Port Authority Opens the Rethebrücke as Europe's Largest Rail Bascule Bridge

Rethe Canal, Hamburg, GermanyHamburg Port Authority

Hamburg Port Authority put the new Rethebrücke rail bascule bridge into operation over the Rethe canal, replacing the original 1934 lift bridge and becoming Europe's largest rail bascule bridge.

0.63

The Channel Tunnel Opens

Channel Tunnel, Folkestone, United Kingdom

The $15BN Channel Tunnel opened, linking Britain to mainland Europe by rail for the first time since the last Ice Age, after six years of construction under the English Channel.

$15B

0.63