15-705: Laira / ˈ l ɛər ə / – previously recorded as Lare (1591), Lary poynte (1638), the Leerie (1643), and the Lairy (1802) – was originally the name given to that part of the estuary of the River Plym from the Cattewater up to Marsh Mills in Plymouth , Devon, England. The name may derive from a Brythonic word corresponding to the Welsh llaeru , meaning 'to ebb'. The A379 road and
30-531: Is a volunteer-run railway that operates steam and diesel-hauled train rides. The first section from Plym Valley from Marsh Mills station opened in 2001, with an extension to Lee Moor Crossing in 2008. In 2013, the line was extended to Plymbridge. The remainder of the line forms part of the Plym Valley Trail, a cycle route from Plymouth to Ilfracombe . The River Plym is popular for canoeing . The upper section of Dartmoor from Cadover Bridge to Shaugh Bridge
45-471: Is approximately 20 miles (32 km) long. The name Plym is thought to have its origins in Old English and means the "plum tree" ( Cornish : ploumenn ), from a back-formation from the name of Plympton . The port of Plymouth took its name from the river. HMS Plym , a River-class antisubmarine frigate , was named after the river during World War II . It carried out convoy escort duties in
60-520: Is considered challenging and has been described by the British Canoe Union as the hardest section of the river to navigate the park. It is often the first river to fill during heavy rain and one of the first to drop afterward. Experienced canoeists judge the water level carefully around the weather. This section has some pool drops, which are not recommended for novices. Lower sections beyond Shaugh Bridge to Bickleigh Bridge are easier to navigate past
75-457: The Great War along Old Laira Road. Also situated on Old Laira Road is the old Police / Fire Station which is currently used as a library. Laira Green Primary school is situated in the area, as well as a disused United Reformed Church. Until the beginning of the 19th century, Old Laira Road had constituted the northern shore of Lipson Lake (or Bay), an extensive tidal inlet on the western side of
90-791: The North Atlantic and was later destroyed in the UK's first nuclear explosion. When it was in operation, the Cann Quarry Canal left the river at Marsh Mills. The Plym Valley Railway runs alongside the River Plym. It opened in 1856 as a section of the South Devon and Tavistock Railway , which followed the river as far as the tributary with the River Meavy. The line closed to passengers in 1962, and goods services stopped four years later. The new railway
105-708: The United Kingdom on 9 October 1943 with critical reinforcements for service in Burma . Plym was used as the detonation platform for the UK's first nuclear weapon in Operation Hurricane . A 25-kiloton atom bomb was detonated a few seconds before 09:30 local time on 3 October 1952 approximately 400 metres (440 yd) from the island of Trimouille in the Monte Bello Islands , Western Australia . Although data acquisition would have been simplified by detonating
120-534: The centre of the county southwest to meet the River Meavy , then south towards Plymouth Sound . The river is popular with canoeists, and the Plym Valley Railway runs alongside a section of the river. The river's source is around 450 metres (1,480 ft) above sea level on Dartmoor , in an upland marshy area called Plym Head . From the upper reaches , which contain antiquities and mining remains,
135-525: The disused Plymouth to Yealmpton railway line cross the estuary just above the Plymouth suburb of Cattedown by two bridges both known as Laira Bridge . The name Laira now also refers to the area of Plymouth surrounding the Laira Traction Maintenance Depot . Much of the housing here was built around 1900 for employees of the depot. There is a memorial plaque to the men of Laira who died in
150-461: The estuary. This area – on which the railway depot and Lipson Co-operative Academy now stand – was reclaimed from the estuary and drained, together with Tothill Bay on the south side of higher ground at Mount Gould, upon the completion in 1802 of an embankment along the whole western shore of the Laira. A new road, laid along this embankment shortly afterwards, from Laira Green to Prince Rock, soon became
165-503: The first rapid, provided the river is at a sufficient water level. In addition, the Plym is rich with brown trout, sea trout, and salmon. Angling is allowed in both lower and upper areas with much of the water being managed by Plymouth & District Freshwater Angling Association. Citations Sources 50°22′N 4°07′W / 50.367°N 4.117°W / 50.367; -4.117 HMS Plym (K271) HMS Plym (K271)
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#1732852748938180-450: The main highway into Plymouth from Plympton , Exeter , and beyond, avoiding the often steep and narrow way via Old Laira Road and Lipson – even though the new route was to remain a toll road until 1924. This Devon location article is a stub . You can help Misplaced Pages by expanding it . River Plym The River Plym is a river in Devon , England. It runs from Dartmoor in
195-604: The river flows roughly southwest past clay workings at Shaugh before the Dewerstone , where it meets the River Meavy . The course then changes to run southwards, between Plymouth and Plympton passing through the National Plymbridge Woods and under the ancient Plym Bridge. Its upper tidal estuary is known as the Laira and the lower part is called Cattewater , which is navigable and leads towards Plymouth Sound . It
210-633: Was commissioned into the Royal Navy on 16 May 1943 as HMS Plym (K271) and was named after the River Plym in Devon, England which flows into the English Channel at Plymouth . Plym saw extensive service on Atlantic convoy escort missions. Plym , along with HMS Bann , HMS Teviot and HMS Trent , provided anti-submarine escort to the convoy WS-33 which arrived in South Africa from
225-529: Was a River-class frigate that served in the Royal Navy between 1943 and 1952. The ship was destroyed in the United Kingdom's first nuclear weapon test, Operation Hurricane in 1952. Plym was built to the Royal Navy 's specifications as a Group II River-class frigate . She was laid down by Smiths Dock Co. at their yard in South Bank-on-Tees on 1 August 1942 and launched on 4 February 1943. She
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