| Uonuma Railway Tunnel | |
| Line: | Jōetsu Shinkansen |
| Location: | between Nagaoka Station and Urasa Station |
| Opened: | 1982 |
| Status: | active |
| Traffic: | Railway |
| Operator: | East Japan Railway Company |
| Character: | Passenger and Freight |
| Linelength: | 8625m (28,297feet) |
| Notrack: | 2 |
is a tunnel on Jōetsu Shinkansen near Echigo-Kawaguchi Station, Nagaoka city, Niigata Prefecture with total length of 8.625 km. It was built and completed in 1982. [1] [2] [3] [4]