NORWAY | DRILL & BLAST
8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0
2010 2011 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 Railway Roads Underground metro Water supply Hydropower Sewerage Storage caverns Others
Left:
Annual tunnelling totals in Norway, with sector breakdown, sampled over 2010-2024
INFORMATION COURTESY OF THE NORWEGIAN TUNNELLING SOCIETY (NFF)
Long famous for its hydropower resources and
associated infrastructure, including many tunnels and caverns, the level of tunnelling activity in this energy sector is not what it once was, by a long way. There has been little of late, the last works ending by the pandemic. The heyday of hydropower tunnelling was over the decades up to the late 1980s, when such works took the lion’s share of annual tunnelling activity. Then the balance shifted to dominance by transport tunnels, mostly for roads, as noted. In terms of total distance of new tunnels, the NFF
figures show the trend of the totals following the overall tunnelling activity, telling that linear tunnels markedly
dominate the excavation work. Last year almost 100km of new tunnel was constructed - almost double the level of 2021.
CONTRACTORS The NFF study says that 2024 was a further year of change at the top of the tunnelling activity table among contractors. The most active contractors in tunnelling last year
were, in order from most active: Skanska, AF (incl Ghella - counting as a JV), Haehre, Veidekke, Implenia, Metrostav, LNS, B&G Tunnel, Sotralink, Eiffage, NCC, Birkeland, and then others.
2,000,000
1,800,000 1,600,000 1,400,000
1,200,000 1,000,000 800,000 600,000 400,000 200,000 0
Total 2024
Total 2023
Above: Comparative tunnelling by contractors in Norway over 2023-2024 INFORMATION COURTESY OF THE NORWEGIAN TUNNELLING SOCIETY (NFF) February 2025 | 15
m3
Volume in million m3
Skanska
AF (inc Ghella) Haehre
Veidekke Implenia Metrostav LNS
B&G Tunnel Sotralink Eiffage NCC
Birkeland
Ottar Dvergsdal Aurstad
VTG-Anlegg Flage Maskin BMO
Bleikvassli Hywer
PA Entreprenør Mesta
Spilda Entr. Hardangermaskin
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