Thames Estuary The new airport would be built on a man-made island in the estuary north of Minster-in-Sheppey There is also some discussion about the need for a Lower Thames Crossing in order to alleviate traffic congestion at Dartford. The Thames Estuary is the focal part of the 21st-century toponym, the "Thames Gateway", designated as one of the principal development areas in Southern England. The appellation Greater Thames Estuary applies to the coast and the low-lying lands bordering the estuary itself. These are characterised by the presence of mudflats, low-lying open beaches and salt marshes, namely the North Kent Marshes and the
Sittingbourne and Sheppey (UK Parliament constituency) Sheppey Central, Teynham and Lynsted, West Downs, and Woodstock. The constituency was created in 1997, mostly from the former seat of Faversham. It covers some of the district of Swale, including Sittingbourne and the Isle of Sheppey. (On Sheppey is Queenborough which was a borough constituency until abolition as a rotten borough in 1832.) The constituency has been a bellwether of the national result since its 1997 creation. Unemployment claimant levels in November 2012 were close to the national average (3.8%) at 4.5%, in line with Cleethorpes, Thurrock, Hammersmith and Meriden. Sittingbourne and Sheppey (UK Parliament constituency) Sittingbourne and Sheppey