Granfoss Tunnel

The Granfoss Tunnel is a set of two tunnels on Ring 3 in Oslo, Norway. The two tunnels are 2.1 kilometers (1.3 mi) long and they are part of the Granfoss Line, a 2.9-kilometer (1.8 mi) stretch of motorway which was opened in 1992 connecting Ring 3 with the European route E18. The name comes from the Granfossen waterfall on the Lysakerelva river, which passes nearby. The two tunnels run from Lysaker to Mustad, and from Mustad to Ullern Church, respectively.

The northern entrance of the southern tunnel, March 2009.

The southern entrance of the northern tunnel, April 2009.

When the two tunnels with four lanes were opened for traffic, a bottleneck of Oslo's road system which had lingered for several decades was finally dissolved. The tunnels were financed by Oslo Package 1.[1]

Despite there being two tunnels, the singular name is used in local parlance.

References

Tvedt, Knut Are, ed. (2000). "Granfosstunnelen". Oslo byleksikon (in Norwegian) (4 ed.). Oslo: Kunnskapsforlaget. p. 162. ISBN 82-573-0815-3.

Lian, Jon Inge (2004). Delvis brukerbetalt utbygging av transportsystemet i Oslo og Akershus. Evaluering av Oslopakke 1 og 2 (PDF). TØI-rapport 714/2004 (in Norwegian). Oslo: Institute of Transport Economics. p. 7. Archived from the original (PDF) on 2009-03-26. Retrieved 18 March 2009.

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[1] Lian, Jon Inge (2004). Delvis brukerbetalt utbygging av transportsystemet i Oslo og Akershus. Evaluering av Oslopakke 1 og 2 (PDF). TØI-rapport 714/2004 (in Norwegian). Oslo: Institute of Transport Economics. p. 7. Archived from the original (PDF) on 2009-03-26. Retrieved 18 March 2009.