Almannaskarðsgöng (Icelandic pronunciation: ​[ˈalˌmannaˌskarðsˌkœiŋk]) is a tunnel along Route 1, located just east of the town of Höfn (Hornafjörður) in the Eastern Region of Iceland. The construction of the tunnel began in March 2004, the breakthrough was in October that same year, and the tunnel was opened on June 24, 2005. The tunnel runs through 1,150 metres of solid rock and some 162 metres of concrete portals, bringing the total length to 1,312 metres (although a sign rounds it off to 1,300 m). The tunnel is two lanes wide, with three passing areas for emergency traffic. The southern tunnel entrance is located at 39 m above sea level whilst the northern tunnel entrance is 82 m high, making the incline of the tunnel 4.6%.