14 September 1962 – 15 September 1962 · Tunnels · Bernauer Straße

Tunnel 29

Around 30 helpers, mostly students, dug a tunnel from a factory on Bernauer Straße to a cellar in East Berlin; 29 people escaped through it over two days while an American TV crew filmed.

Bronze plaque on a building wall with German text and the words 'Tunnel 29' in quotation marks in the centre.
Memorial plaque for 'Tunnel 29' at Schönholzer Straße 7 in Mitte, where the 135-metre tunnel ended and 29 people escaped on 14–15 September 1962 (plaque from 2009, photographed 2010) Photo: OTFW, Berlin. Wikimedia Commons, CC BY-SA 3.0

In the spring of 1962 a group of helpers, largely students, dug a tunnel from a factory building at Bernauer Straße 78/79 in West Berlin under the border to the cellar of Schönholzer Straße 7 in East Berlin. Among the organisers were the Italian students Luigi Spina and Domenico Sesta and Hasso Herschel.

To finance the work, Spina and Sesta sold the rights to film the digging and the arrival of refugees in the West to the American broadcaster NBC. Some of the diggers distanced themselves from what they saw as turning escape help into a business.

On 14 and 15 September 1962, 29 East Germans went through the tunnel (about 120 metres long according to the Chronik der Mauer) to West Berlin, among them Hasso Herschel's sister; according to NARA, at the end they were up to their faces in water. The number of refugees gave the tunnel its name. Work had been interrupted earlier by water ingress, and late on 15 September a final flood closed the tunnel.

Sources

Western official records

Historians and memorials

Facts checked against the sources: September 2026

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Cite this page

Berlin Experiences, “Tunnel 29”, Berlin Wall Escapes, 2026, https://berlinwallescapes.com/escapes/tunnel-29/ (accessed [date]).

  1. 7 August 1962

    The Betrayed Kiefholzstraße Tunnel

    Several escape-helper groups joined forces on a tunnel to a small house on Kiefholzstraße for a planned mass escape, but a Stasi informer among the couriers betrayed it and dozens of would-be refugees were arrested.

    Tunnels · Stopped · Treptow-Köpenick

  2. February 1963

    The betrayed second tunnel from Bernauer Straße 78

    Tunnel 29's builders dug again from the same cellars; on breakthrough day Stasi officers lay in wait at Brunnenstraße 45. The diggers noticed in time, but 14 would-be escapees and three couriers were arrested.

    Tunnels · Stopped · Mitte / Gesundbrunnen

  3. 3 October 1964 – 5 October 1964

    Tunnel 57

    57 East Berliners crawled through a 145-metre tunnel dug by West Berlin students under Bernauer Straße. The escape ended in a shoot-out in which border guard Egon Schultz was killed; records opened after 1990 showed the fatal shots came from a fellow GDR soldier.

    Tunnels · Reached the West · Mitte

  4. February 1971

    Tunnel 71 – The Last Tunnel under Bernauer Straße

    Hasso Herschel's team lived underground for nine weeks digging a tunnel beneath Bernauer Straße, but came within ten metres of their goal before GDR border troops dug it up.

    Tunnels · Stopped · Mitte