| Old Caoling Tunnel | |
| Official Name: | 舊草嶺隧道 |
| Location: | Gongliao, New Taipei, Taiwan |
| Coordinates: | 25.0039°N 121.9583°W |
| Status: | Heritage |
| Opened: | February 1924 (as railway tunnel) 10 August 2009 (as bikeway) |
| Length: | 2.167 km |
The Old Caoling Tunnel is a cycleway tunnel in Gongliao District, New Taipei, Taiwan.
The tunnel was originally constructed as a single-track railway tunnel of Yilan line which was inaugurated in February 1924. It was then later on converted into a cycleway when the new railway tunnel was constructed in parallel with the old one.[1] The new tunnel was opened in 1986 and the old tunnel was abandoned. Years later, the tunnel was turned into a bikeway by Northeast Coast and Yilan National Scenic Area Administration. The tunnel was then reopened on 10 August 2009.[2]
The cycleway path inside the tunnel was designed in a style of a track. The tunnel was originally lit with oil lamps and now is lit with fluorescent strip lights and a few low energy bulbs in replica lanterns 2020. The entrance features some artworks. The tunnel stretches for a length of 2.167 km.[1]
The tunnel is accessible by bus from Fulong Station of Taiwan Railways.[3]