- Granfoss Tunnel
The Granfoss Tunnel are two tunnels on Ring 3 in
Oslo ,Norway . The tunnels are 2.1 km long and they are part of the Granfoss Line, a 2.9 km stretch of motorway which was opened in 1992 connecting Ring 3 withEuropean route E18 . The name comes from theGranfossen waterfall on theLysakerelva river which passes close by. The two tunnels run fromLysaker to Mustad, and from Mustad toUllern Church , respectively.When the two tunnels with 4 lanes were opened for traffic, a bottleneck of Oslo's road system which had lingered for several decades was finally dissolved.
Despite there being two tunnels, the singular name is used in local parlance.
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