Longest tunnels in the world
Tunnels in use that are among the longest of their kind — water supply, hydroelectric, railway, metro, road and wastewater — with length, location and year completed. One row per tunnel.
Columns
Stable keys — use them in the API, SQL and code
| Key | Name | Type | Description |
|---|---|---|---|
| id | ID | string | Tunnel name, plus the location when names repeat. |
| rank | Rank | integer | Position by length in this list. |
| name | Tunnel | string | — |
| wikidata | Wikidata | entity | — |
| type | Type | string | Use of the tunnel: water supply, railway, metro, road, hydroelectric, etc. |
| length_m | Length | integer · m | Length in metres. |
| location | Location | string | — |
| country | Country | country | ISO 3166-1 alpha-3 code. |
| country_name | Country name | string | — |
| completed | Completed | year | — |
| year_text | Year (as given) | string | — |
More in Buildings & Infrastructure
Tallest buildings in the world
Completed buildings and skyscrapers with an architectural height of at least 250 metres, as recorded in Wikidata. One row per building.
Power plants of the world (100 MW and larger)
Grid-connected power plants worldwide with an installed capacity of at least 100 megawatts, from the WRI Global Power Plant Database: fuel, capacity, location, commissioning year, owner and annual generation. One row per plant.
UNESCO World Heritage Sites
Sites inscribed on the UNESCO World Heritage List, with the year of inscription, selection criteria, type (cultural, natural or mixed), country and location. One row per inscribed property.
Tallest structures in the world
The world's tallest human-made structures of every kind — skyscrapers, towers, guyed masts, chimneys, offshore platforms, bridges and more — with pinnacle height, year, structure type, main use, country, town and coordinates. One row per structure, including notable ones that no longer stand.
Longest bridges in the world
Completed bridges and viaducts at least about 3 km long, with total length, main span, year completed, type of traffic and country. One row per bridge.
High-speed railway lines of the world
High-speed railway lines in operation, under construction or approved, country by country, with termini, length, maximum speed, whether the line is newly built or upgraded, and opening year. One row per line (or line section) as listed by country.