Tram tunnel

The Haagse tramtunnel is a 1250 meter long railway tunnel for trams beneath the center of The Hague. The tunnel connects two underground stations and runs under major streets and squares, with an integrated parking garage containing about 500 spaces.

The tunnel opened in 2004 to handle increasing tram traffic in the congested city center. Construction began in 1996 and was delayed by severe water damage in 1998, extending the project by several years.

The name 'Het Souterrain' refers to its underground nature beneath the busy city center. The stations display local history through mosaics of old city maps and archaeological finds discovered during construction.

The tunnel is used daily by several tram lines and offers a quick underground route through the city center. The stations are well-lit and easily accessible, with clear signage for passengers.

During construction a major collapse in 1998 damaged the structure and flooded it with groundwater, prompting locals to jokingly call it the 'swimming pool tunnel'. Despite these setbacks the project was completed successfully and now serves as a vital transport link.

Location: The Hague

Architects: Rem Koolhaas

Official opening: October 16, 2004

Length: 1,250 m

Address: 2512 AX The Hague, Netherlands

Phone: +31541878422

GPS coordinates: 52.07639,4.31167

Latest update: December 10, 2025 16:02