Johannes Holt was a Norwegian resistance member, engineer and mountaineer.

He grew up in Andebu

Andebu

Andebu is a municipality in Vestfold county, Norway. The administrative centre of the municipality is the village of Andebu. The parish of Andebo was established as a municipality on 1 January 1838 ....

 and took his construction engineering

Construction engineering

Construction engineering is a professional discipline that deals with the designing, planning, construction, and management of infrastructures such as highways, bridges, airports, railroads, buildings, dams, and utilities. Construction Engineers are unique such that they are a cross between civil...

 education at the Norwegian Institute of Technology

Norwegian Institute of Technology

The Norwegian Institute of Technology, known by its Norwegian abbrevation NTH was a science institute in Trondheim, Norway. It was established in 1910, and existed as an independent technical university for 85 years, after which it was merged into the University of Trondheim as an independent...

. He worked with bridges in the Norwegian Public Roads Administration

Norwegian Public Roads Administration

The Norwegian Public Roads Administration is a Norwegian government agency responsible for the state and county public roads in the country. This includes planning, construction and operation of the state and county road networks, driver training and licensing, vehicle inspection and subsidies to...

, and also participated in the Norwegian Campaign

Norwegian Campaign

The Norwegian Campaign was a military campaign that was fought in Norway during the Second World War between the Allies and Germany, after the latter's invasion of the country. In April 1940, the United Kingdom and France came to Norway's aid with an expeditionary force...

 in 1940. From 1941 to 1945 he was a resistance member in XU

XU

XU was a clandestine intelligence organisation working on behalf of Allied powers in occupied Norway during World War II...

; smuggling bridge designs to be microfilmed and duplicated. Accomplices in doing so include fellow bridge engineer Arne Selberg. At the same time Holt was a liaison to the Reichskommissariat Norwegen

Reichskommissariat Norwegen

The Reichskommissariat Norwegen, literally "Reich Commissariat of Norway", was the civilian occupation regime set up by Nazi Germany in German-occupied Norway during World War II. Its full title in German was the Reichskommissariat für die besetzten norwegischen Gebiete...

 and Organisation Todt

Organisation Todt

The Todt Organisation, was a Third Reich civil and military engineering group in Germany named after its founder, Fritz Todt, an engineer and senior Nazi figure...

, the forces against which XU fought, "because of his mastering of the German language

German language

German is a West Germanic language, related to and classified alongside English and Dutch. With an estimated 90 – 98 million native speakers, German is one of the world's major languages and is the most widely-spoken first language in the European Union....

".

After leaving the Public Roads Administration in 1949, he worked in Berntsen og Boe from 1949 to 1951, Nordisk Aluminiumindustri from 1951 to 1953 and Berntsen og Boe again from 1953 to 1957. He spent most of his career as chief executive of his own construction consulting company Johs Holt AS, from 1957 to 1981. Important projects include Stavanger City Bridge

Stavanger City Bridge

Stavanger City Bridge is a cable-stayed bridge with one tower that crosses Strømsteinsundet from the centre of Stavanger, Norway to Grasholmen and Sølyst in the borough Hundvåg....

, the first larger cable-stayed bridge

Cable-stayed bridge

A cable-stayed bridge is a bridge that consists of one or more columns , with cables supporting the bridge deck....

 in Norway, as well as the even larger cable-stayed bridges Skarnsund Bridge

Skarnsund Bridge

Skarnsund Bridge is a long concrete cable-stayed bridge that crosses the Skarnsundet sound, in Nord-Trøndelag county, Norway. When finished in 1991, it replaced the Vangshylla–Kjerringvik Ferry and it gives the communities in Mosvik and Leksvik easier access to the central areas of Innherred...

 and Uddevalla Bridge

Uddevalla Bridge

The Uddevalla Bridge is a cable-stayed bridge crossing Sunninge sound near Uddevalla in the province of Bohuslan on the west coast of Sweden. The bridge was constructed as part of the rerouting of the European route E6 outside Uddevalla, which reduced traffic congestion in the city and shortened...

. He also worked with the fundaments for the monument Sverd i fjell

Sverd i Fjell

Sverd i fjell is a commemorative monument located at the Hafrsfjord fjord, just outside the city of Stavanger in Norway.The monument was created by sculptor Fritz Røed from Bryne and was unveiled by king Olav V of Norway in 1983. Three very tall swords are planted into the rock of a small hill...

.

Holt was a member of the mountaineering society Norsk Tindeklub

Norsk Tindeklub

Norsk Tindeklub is a Norwegian mountaineering association. The club was founded in 1908. The association issues climbing guides and mountaineering books. The club has issued several jubilee books in the series Norsk Fjellsport...

. Having taken up mountaineering in his fifties, Holt ascended mountains like Store Skagastølstind

Store Skagastølstind

Store Skagastølstind is the third highest peak in Norway. It is situated on the border between the municipality of Luster and Årdal in Sogn og Fjordane county, Norway. The mountain is part of the Hurrungane range...

 at the age of 86 and Stetind

Stetind

Stetind , is a mountain in Tysfjord, Nordland, Norway.In 2002, it was voted to be the National mountain of Norway....

 at the age of 87. He lived in Nadderud

Nadderud

Nadderud is a district in eastern Bærum, Norway. It was formerly farmland under one of Bærum's larger farms, named Nadderud, but since the 1950s it has been built up with housing, several schools and sporting facilities. The best known facility, which has made the name Nadderud nationally known, is...

until he died in January 2011.