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Physical geography of Somerset (1st supplementary nomination)

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This topic is already featured. It is being re-nominated to add additional items. See Wikipedia talk:Featured topics/Physical geography of Somerset for discussions of the topic's previous nominations. The additional items are:

  1. River Parrett
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Geology of Somerset River Parrett

River Parrett has just achieved GA status. It is the largest river in Somerset at 37 miles (59.5 km). It drains an area of over 652.5 sq mi (1,690.0 km2), comprising around 50% of the land area of Somerset.— Rod talk 19:05, 1 February 2009 (UTC)[reply]

  • Expansion - I had hoped that saying it drains over 50% of the land area of the county would be enough but to add a little more:
The main tributaries include the Rivers Tone (length (approx) 21 miles (34 km)), Isle (8 miles (13 km)) and River Yeo (South Somerset) (15 miles (24 km)). The Cary (8 miles (13 km)) drains into the Parrett via the King's Sedgemoor Drain (artificial) (10.5 miles (17 km)).
The other significant rivers in Somerset which are not tributaries include: Axe (15 miles (24 km)), Barle (7 miles (11 km)), Brue (30 miles (48 km)), Chew (17 miles (27 km)), Frome (20 miles (32 km)), Holford (4.5 miles (7 km)), Huntspill (artificial) (5 miles (8 km)), Sheppey (7 miles (11 km)) and Congresbury Yeo (15 miles (24 km)). I have not included rivers, streams & brooks less than (4 miles (6 km)) in length.
The rivers Exe (50 miles (80 km)) and Avon (75 miles (121 km)) form parts of the borders of the county but do not flow in it for much of their course.
The Parrett is tidal for 27 miles (43 km) and exhibits a tidal bore.
The River Parrett was established as the border between Wessex and Dumnonia in 658 AD
The name means 'The barge river' from the Latin paradie 'barse'.
Historically, the main port on the river was at Bridgwater; the river being bridged at this point, with the first bridge being constructed in 1200 AD.
Most commercial shipping travels upriver as far as Dunball wharf, which handles bulk cargoes. Marine sand and gravel accounted for 55,754 tonnes of the total tonnage of 90,213 using the Port facilities in 2006, with salt products accounting for 21,170 tonnes in the same year, while the roll-on roll-off berth at Combwich is used occasionally for the transfer of heavy goods for the two Hinkley Point nuclear power stations.
The river is technically a highland carrier, as it is embanked and the water level is often higher than that of the land through which it flows. Water from the surrounding countryside does not therefore drain into the river naturally, and drainage schemes have relied on pumping to remove the water and reduce flooding. The pumping station at Westonzoyland was built in 1830, the first mechanical pumping station on the Somerset Levels.
During January through to May, the Parrett provides a source of eels (Anguilla anguilla) and young elvers.
I hope this provides enough explanatiojn of why it is the biggest & most significant river but if you want more let me know.— Rod talk 09:59, 2 February 2009 (UTC)[reply]