What tunnel runs under the Hudson River and has a ventilation system innovated by Ole Knutsen Singstad?
Ole Singstad Ole Knutsen Singstad (June 29, 1882 – December 8, 1969) was a Norwegian-American civil engineer who innovated the ventilation system for the Holland Tunnel (which subsequently became commonly used in other automotive tunnels) and advanced the use of the "Sunk-tube" method of underwater vehicular tunnel building, a system of constructing the tunnels with prefabricated sections.
Nyborg Tunnel The Nyborg Tunnel is a proposed 8 km long road tunnel between Åsane and Klauvaneset in the city-municipality of Bergen in Hordaland county, Norway. If built, it would extend the four-lane motorway section of European route E39 (E39) from Åsane northwards to the Nordhordland Bridge. The tunnel is presumed financed with a five-year toll collection at the bridge while the tunnel is being built, and then with a toll on the tunnel for 15 years. It is estimated to cost 1,900 million kr . Construction is planned to start in 2014 . The tunnel would branch off the current E39 highway at Åsane, just west of the IKEA store, and it would head northwards. It would exit the tunnel just south of the Nordhordland Bridge.