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Cornmill Stream
The Cornmill Stream is a minor tributary of the River Lea in the English county of Essex. History The stream is an artificial watercourse which may have been built by 1086 to serve the mills mentioned in the Domesday Book at Waltham Abbey. Course After leaving the River Lee Flood Relief Channel (Horsemill Stream) at Fishers Green the stream flows south to form the western boundary with the former Waltham Abbey Royal Gunpowder Mills before flowing through the Waltham Abbey SSSI within the Gunpowder Mills property. Above Waltham Abbey the stream diverges from the Old River Lea Retrieved 12 September 2008 with both channels bordering the Cornmill Stream and Old ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waltham Abbey SSSI
Waltham Abbey SSSI is a biological Site of Special Scientific Interest which is located within the Waltham Abbey Royal Gunpowder Mills at Waltham Abbey in Essex. History For 300 years the area was cut off from its surroundings by river boundaries and the highly secret nature of its work. The site was finally closed in 1991. Decontamination work was carried out between 1992–96 and the site opened to the public in 2001. Location The woodland site lies to the north of the present day Gunpowder Mills and is bounded by the River Lee Flood Relief Channel to the north and west while the Cornmill Stream forms its eastern boundary. Description The site is alder woodland on damp soils, with other trees including sycamore, ash and crack willow. The trees were planted around 1700 to provide charcoal for the manufacture of gunpowder, and planting ceased at the time of the First World War. The wood has the largest heronry in Essex, which was present in 1974 and had 26 pairs in 198 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tributaries Of The River Lea
A tributary, or an ''affluent'', is a stream or river that flows into a larger stream (''main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which they flow, drain the surrounding drainage basin of its surface water and groundwater, leading the water out into an ocean, another river, or into an endorheic basin. The Irtysh is a chief tributary of the Ob river and is also the longest tributary river in the world with a length of . The Madeira River is the largest tributary river by volume in the world with an average discharge of . A confluence, where two or more bodies of water meet, usually refers to the joining of tributaries. The opposite to a tributary is a distributary, a river or stream that branches off from and flows away from the main stream. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivers Of Essex
A river is a natural stream of fresh water that flows on land or inside caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may run dry before reaching the end of its course if it runs out of water, or only flow during certain seasons. Rivers are regulated by the water cycle, the processes by which water moves around the Earth. Water first enters rivers through precipitation, whether from rainfall, the Runoff (hydrology), runoff of water down a slope, the melting of glaciers or snow, or seepage from aquifers beneath the surface of the Earth. Rivers flow in channeled watercourses and merge in confluences to form drainage basins, or catchments, areas where surface water eventually flows to a common outlet. Rivers have a great effect on the landscape around them. They may regularly overflow their Bank (geography), banks and flood the surrounding area, spreading nutrients to the surrounding area. Sediment or alluvium carr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
B Roads In Zone 1 Of The Great Britain Numbering Scheme
B roads are numbered routes in Great Britain of lesser importance than A roads. See the article Great Britain road numbering scheme In Great Britain, there is a numbering scheme used to Categorization, classify and identify all roads. Each road is given a single letter (representing a category) and a subsequent number (between one and four digits). Though this scheme was in ... for the rationale behind the numbers allocated. Zone 1 (3 digits) Zone 1 (4 digits) {{DEFAULTSORT:B Roads in Zone 1 of the Great Britain Numbering Scheme 1 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SSSI
A Site of Special Scientific Interest (SSSI) in Great Britain, or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland, is a conservation designation denoting a protected area in the United Kingdom and Isle of Man. SSSI/ASSIs are the basic building block of site-based nature conservation legislation and most other legal nature/geological conservation designations in the United Kingdom are based upon them, including national nature reserves, Ramsar sites, Special Protection Areas, and Special Areas of Conservation. The acronym "SSSI" is often pronounced "triple-S I". Selection and conservation Sites notified for their biological interest are known as Biological SSSIs (or ASSIs), and those notified for geological or physiographic interest are Geological SSSIs (or ASSIs). Sites may be divided into management units, with some areas including units that are noted for both biological and geological interest. Biological Biological SSSI/ASSIs ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cornmill Stream And Old River Lea
The Cornmill Stream and Old River Lea is a biological Site of Special Scientific Interest in Waltham Abbey, Essex. Location The site is bounded by a channel of the Old River Lea to the north and west which formed a boundary with the former Royal Gunpowder Mills. To the east flows the Cornmill Stream and the southern boundary is formed by the B194 road (Abbey View). Habitat The slow-moving Cornmill Stream and Old River Lea form a freshwater habitat with one of the most diverse invertebrate fauna in Essex. Eighteen species of dragonflies and damselflies Damselflies are flying insects of the suborder Zygoptera in the order Odonata. They are similar to dragonflies (which constitute the other odonatan suborder, Epiprocta) but are usually smaller and have slimmer bodies. Most species fold the win ... have been recorded and includes the uncommon and nationally declining white-legged damselfly. The watercourses support a rich and varied aquatic and marginal flora and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waltham Abbey (town)
Waltham Abbey is a suburban town and civil parish in the Epping Forest District of Essex, within the metropolitan and urban area of London, England, north-east of Charing Cross. It lies on the Greenwich Meridian, between the River Lea in the west and Epping Forest in the east, with large sections forming part of the Metropolitan Green Belt. The town borders Chingford to the south; Loughton, Theydon Bois and Buckhurst Hill to the east; Cheshunt, Waltham Cross and Enfield to the west; and the rural areas of Nazeing and Epping Upland to the north. As well as the main built-up area, the parish covers the areas of Claverhambury, Fishers Green, High Beach, Holyfield, Lippitts Hill, Sewardstone, Sewardstonebury and Upshire. As of the 2021 census, the civil parish of Waltham Abbey had a population of 22,859. The town is named and renowned for its former abbey, the last in England to be dissolved, now the Abbey Church of Waltham Holy Cross and St Lawrence—a scheduled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waltham Abbey Royal Gunpowder Mills
The Royal Gunpowder Mills are a former industrial site in Waltham Abbey, England. It was one of three Royal Gunpowder Mills (other), Royal Gunpowder Mills in the United Kingdom of Great Britain and Ireland, United Kingdom (the others being at Ballincollig Royal Gunpowder Mills, Ballincollig and Faversham explosives industry, Faversham). Waltham Abbey is the only site to have survived virtually intact. The Royal Gunpowder Mills, Waltham Abbey, were in operation for over 300 years. Starting in the mid-1850s the site became involved in the development of revolutionary nitro compound, nitro-based explosives and propellants known as "smokeless powder". The site grew in size, and black powder became less important. Shortly after the World War II, Second World War it became solely a Defence Research Establishment – firstly the Explosives Research and Development Establishment, then the Propellants, Explosives and Rocket Motor Establishment Waltham Abbey; and finally the Ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Lea
The River Lea ( ) is in the East of England and Greater London. It originates in Bedfordshire, in the Chiltern Hills, and flows southeast through Hertfordshire, along the Essex border and into Greater London, to meet the River Thames at Bow Creek (England), Bow Creek. It is one of the largest rivers in London and the easternmost major tributary of the Thames. The river's significance as a major east–west barrier and boundary has tended to obscure its importance as north–south trade route. Below Hertford the river has since medieval times had alterations made to make it more navigable for boats between the Thames and eastern Hertfordshire and Essex, known as the Lee Navigation. This stimulated much industry along its banks. The navigable River Stort, the main tributary, joins it at Hoddesdon. While the lower Lea remains somewhat polluted, its upper stretch and tributaries, classified as chalk streams, are a major source of drinking water for London. An artificial waterway k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fishers Green
Fishers Green is a settlement in the parish of Waltham Abbey in Essex, England, lying to the north of the main built-up area. It lies on the flood plain of the River Lea. Description In the years following World War II much of the flood plain was given over to gravel extraction. The resulting lakes form part of the River Lee Country Park wetland reserve and the Turnford and Cheshunt Pits a SSSI. The lakes are popular for angling and sailing and are an important wildlife site. Seventy Acres Lake provides the ideal habitat for many species of birds and is the home of the national bittern watchpoint. Two watercourses flow through the locality; a natural channel of the River Lea known as the Old River Lea and the River Lee Flood Relief Channel. The Old River Lea is nationally renowned for its barbel and chub angling and is one of only four rivers in the UK where barbel are an indigenous species. In March 2012 an angler landed a chub from the River Lea, equalling the largest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Lee Flood Relief Channel
The Lee Flood Relief Channel (FRC) is located in the River Lea, Lea Valley and flows between Ware, Hertfordshire, and Stratford, London, Stratford, east London. Work started on the channel in 1947 Thames flood, 1947 following major flooding and it was fully operational by 1976. The channel incorporates existing watercourses, lakes, and new channels. Water from the channel feeds the Lee Valley Reservoir Chain. Design Flood defences are rated according to the probability that a particular level of flood water will be exceeded at least once in a specific period, so a 100-year flood represents a level that would only be expected to occur once in 100 years. This is often known as 1 per cent protection. The level of flooding in 1947 was estimated to be a 1.4 per cent occurrence, and the flood channel, when it was first designed, was built to cope with this level of flooding. Since it was completed in 1976, there have been no major flood events in the Lea Valley, although there have b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
