Elbe Tunnel (Hamburg)

E228225

road tunnel transport infrastructure underwater tunnel

The Elbe Tunnel in Hamburg is a major underwater road tunnel beneath the River Elbe that forms a key traffic artery connecting the northern and southern parts of the city.

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All labels observed (5)

Label	Occurrences
Elbe Tunnel (Hamburg) canonical	2
Old Elbe Tunnel (St. Pauli Elbtunnel)	2
Elbe Tunnel in Hamburg	1
Elbtunnel	1
Elbtunnel Hamburg (northern portal vicinity)	1

How this entity was disambiguated

This entity first appeared as the object of triple T2047605 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Elbe Tunnel (Hamburg)
Context triple: [A7 motorway, hasBridge, Elbe Tunnel (Hamburg)]

A. Westerscheldetunnel
The Westerscheldetunnel is a major road tunnel in the Netherlands that runs beneath the Western Scheldt estuary, providing a key fixed link between the northern and southern parts of Zeeland.
B. Piet Hein Tunnel
The Piet Hein Tunnel is a major road and tram tunnel in Amsterdam that connects the city center with the Eastern Docklands and the A10 ring road.
C. Beneluxtunnel
The Beneluxtunnel is a major Dutch road and metro tunnel near Rotterdam that carries traffic beneath the Nieuwe Maas river, forming a key link in the region’s transport network.
D. Rügen Bridge
The Rügen Bridge is a modern cable-stayed road bridge in Germany that connects the mainland city of Stralsund with the Baltic Sea island of Rügen, serving as a major transport link in the region.
E. Maastunnel
Maastunnel is a historic traffic tunnel in Rotterdam, the Netherlands, carrying road, bicycle, and pedestrian traffic beneath the Nieuwe Maas river.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Elbe Tunnel (Hamburg)
Target entity description: The Elbe Tunnel in Hamburg is a major underwater road tunnel beneath the River Elbe that forms a key traffic artery connecting the northern and southern parts of the city.

A. Westerscheldetunnel
The Westerscheldetunnel is a major road tunnel in the Netherlands that runs beneath the Western Scheldt estuary, providing a key fixed link between the northern and southern parts of Zeeland.
B. Piet Hein Tunnel
The Piet Hein Tunnel is a major road and tram tunnel in Amsterdam that connects the city center with the Eastern Docklands and the A10 ring road.
C. Beneluxtunnel
The Beneluxtunnel is a major Dutch road and metro tunnel near Rotterdam that carries traffic beneath the Nieuwe Maas river, forming a key link in the region’s transport network.
D. Rügen Bridge
The Rügen Bridge is a modern cable-stayed road bridge in Germany that connects the mainland city of Stralsund with the Baltic Sea island of Rügen, serving as a major transport link in the region.
E. Maastunnel
Maastunnel is a historic traffic tunnel in Rotterdam, the Netherlands, carrying road, bicycle, and pedestrian traffic beneath the Nieuwe Maas river.
F. None of above. chosen

Statements (44)

Predicate	Object
instanceOf	road tunnel ⓘ transport infrastructure ⓘ underwater tunnel ⓘ
belongsTo	federal motorway network of Germany ⓘ
cityServed	Hamburg ⓘ
connects	northern Hamburg ⓘ southern Hamburg ⓘ
constructionType	immersed tube tunnel ⓘ
country	Germany ⓘ
crosses	River Elbe ⓘ linked to: Elbe
designedFor	high-capacity urban and long-distance traffic ⓘ
firstTubeOpened	1975 ⓘ
function	key traffic artery in Hamburg ⓘ road link between north and south of the Elbe ⓘ
hasDirection	northbound ⓘ southbound ⓘ
hasEmergencyExits	yes ⓘ
hasLanes	8 ⓘ
hasLighting	yes ⓘ
hasMaintenanceClosures	yes ⓘ
hasMonitoring	traffic control and surveillance systems ⓘ
hasNumberOfTubes	4 ⓘ
hasSpeedLimit	generally 80 km/h ⓘ
hasToll	no ⓘ
hasVentilationSystem	yes ⓘ
length	approximately 1.9 miles ⓘ approximately 3.1 kilometres ⓘ
locatedIn	Germany ⓘ Hamburg ⓘ state of Hamburg ⓘ
locatedOn	A7 between Othmarschen and Waltershof ⓘ
locatedUnder	River Elbe ⓘ linked to: Elbe
notableFor	being one of Germany’s busiest motorway tunnels ⓘ
opened	1975 ⓘ
operator	Hamburg authority for transport and roads ⓘ linked to: Hamburg Port Authority
partOf	A7 north–south corridor ⓘ Bundesautobahn 7 ⓘ linked to: Autobahn A7 European route E45 ⓘ
region	Hamburg metropolitan region ⓘ
roadType	motorway tunnel ⓘ
safetyUpgrades	carried out in the 2000s ⓘ
thirdTubeOpened	2002 ⓘ
trafficType	motor vehicle traffic ⓘ
underpasses	Elbe riverbed ⓘ

How these facts were elicited