More non-MDFCTA troughs
These structures that are included for completeness only.
Cornhill
Cheltenham
George Green, Wanstead
Nayland
Stevenage
Doncaster
Wakefield
Alphington
Liskeard
Liskeard
Liskeard
Carlisle
Petersham
Northwood
Hunton Bridge
Brentwood
Canterbury
Quendon
Coventry
Goudhurst
Wisbech
Southampton
Southampton
Netley
Christchurch
Sudbury
Westerham
Freshwater Bay
Lindfield
Henlow
Devizes
St. Leonards
Gravesend
Coombe Down
Grimsby
Exeter
Kettering
Tadcaster
Kemsing
Groombridge Hill
Barrow Gurney
Norwich
Newent
Calbourne
Filey
Scarborough
Scarborough
Scarborough
Scarborough
Aston Clinton
Whetstone
Kew Green