Sengan Tunnel

LineJapan National Route 46

Locationbetween Iwate prefecture and Akita prefecture borders

Coordinates39°42′28.3422″N 140°48′57.0348″E / 39.707872833°N 140.815843000°E / 39.707872833; 140.815843000

Statusactive

Sengan Tunnel

Sengan tunnel on Iwate side
Overview
Line	Japan National Route 46
Location	between Iwate prefecture and Akita prefecture borders
Coordinates	39°42′28.3422″N 140°48′57.0348″E / 39.707872833°N 140.815843000°E / 39.707872833; 140.815843000
Status	active
Operation
Opened	1975
Technical
Length	2.544 km (1.581 mi)
No. of lanes	2

Sengan Tunnel (仙岩トンネル) is a tunnel on National Sengan Road #46 in northern Japan that runs between Iwate prefecture and Akita prefecture borders with approximate length of 2.544 km. It was completed and opened in 1975.^{[1] [2][3][4]}