Adrodd fel Amhriodol

Testun Gwreiddiol (Anodiad: EAW000055 / 2140717)

' Woolwich foot tunnel under the Thames, Northern entrance. Opened 26 October 1912. 1,654 feet long (504 metres) and approximately 10 feet below the river bed. See https://en.wikipedia.org/wiki/Woolwich_foot_tunnel '