Numbers and Statistics
The Norwegian Tunnelling Society is making an annual survey of excavated volume from tunnels and rock carvens. The result is presented beneath. The statistic goes back to 1971.
![Numbers and Statistics](https://tunnel.no/wp-content/uploads/sites/3/2020/08/17.-Tunnelstatistikk-600x247.jpg)
The Norwegian Tunnelling Society is making an annual survey of excavated volume from tunnels and rock carvens. The result is presented beneath. The statistic goes back to 1971.