This Support video shows workaround for failure of corridor creation using feature Geometry Centerline, this video create corridor automatically by creating road Centerline using Open Roads Technology and it fails using features Geometry_Centerline.
In this Video, created a terrain model using ASCII file option. I have attached the ASCII file "Spot.txt" for testing.
Click the video below to play it. To view in fullscreen mode, first click the YouTube link at the bottom of the video to launch the video on the YouTube site. Then, click the fullscreen button (rightmost button at bottom of video).
Recorded in 1280 X 720 resolution.