Hawin Ab (T&F)

Hawin Ab is a river under The Viaduct.

It was here where Gordon lost his dome in a gale whilst crossing The Viaduct.

Appearances
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 * -|Television Series=

Thomas & Friends
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 * Series 1 - Thomas and Gordon, Edward and Gordon, Thomas and the Trucks , James and the Express, The Flying Kipper, Dirty Objects and Thomas' Christmas Party
 * Series 2 - Cows, Thomas and Trevor, A Close Shave, Better Late Than Never, Wrong Road and Ghost Train
 * Series 3 - Time for Trouble and Gordon and the Famous Visitor
 * Series 6 - It's Only Snow, Twin Trouble, Middle Engine, James and the Red Balloon, Percy's Chocolate Crunch, Thomas the Jet Engine and Edward the Very Useful Engine
 * Series 7 - The Refreshment Lady's Tea Shop, Bad Day at Castle Loch, The Runaway Elephant, Harold and the Flying Horse and The Grand Opening and Not So Hasty Puddings
 * Series 13 - The Lion of Sodor, The Early Bird, Play Time, Thomas and the Pigs and Percy's Parcel
 * Series 14 - Henry's Health and Safety and Diesel's Special Delivery
 * Series 15 - James to the Rescue
 * -|Other Media=

Magazine Stories

 * 1989 - Henry the Hero and Hurricane!
 * 1993 - The Viaduct!

Video Games
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 * 1999 - The Great Festival Adventure
 * 2000 - Unten Thomas Deluxe Set
 * 2001 - The Friends of Sodor

Trivia

 * When the viaduct appeared in CGI, the Hawin Ab was not seen flowing under it.