The Grønnlifjell Tunnel (Norwegian: Grønnlifjelltunnelen) is a road tunnel that is part of Norwegian County Road 830 in Fauske Municipality in Nordland county, Norway.

It is located between Finneid in the town of Fauske and the village of Sulitjelma.

The 2,811-metre (9,222 ft) long tunnel was originally built in 1956 as part of an expansion of the Sulitjelma Line between Finneid and Sulitjelma.

The tunnel was rebuilt soon after when the old railway line was converted into a highway which opened in 1975.

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