A levee, dike, dyke, embankment, floodbank or stopbank is an elongated naturally occurring ridge or artificially constructed fill or wall, which regulates water levels. It is usually earthen and often parallel to the course of a river in its floodplain or along low-lying coastlines.
A ditch is a small to moderate depression created to channel water. A ditch can be used for drainage, to drain water from low-lying areas, alongside roadways or fields, or to channel water from a more distant source for plant irrigation. Ditches are commonly seen around farmland, especially in areas that have required drainage, such as The Fens in eastern England and much of the Netherlands.
Dyke or dike may refer to:
Rathcroghan is a complex of archaeological sites near Tulsk in County Roscommon, Ireland. It is identified as the site of Cruachan, the traditional capital of the Connachta, the prehistoric and early historic rulers of the western territory. The Rathcroghan Complex is a unique archaeological landscape with many references found in early Irish medieval manuscripts.
Dry stone, sometimes called drystack or, in Scotland, drystane, is a building method by which structures are constructed from stones without any mortar to bind them together. Dry stone structures are stable because of their unique construction method, which is characterized by the presence of a load-bearing façade of carefully selected interlocking stones.
A berm is a level space, shelf, or raised barrier separating two areas. It can serve as a fortification line, a border/separation barrier, in industrial settings, or in many other applications. A berm is also used on mountain bike and BMX courses to assist the rider around a corner at speed; this type of berm is often steep and curved, unlike most "construction berms". The word berm originates in the Middle Dutch and came into usage in English via French.
Devil's Dyke is the remains of a prehistoric defensive ditch which lies at the east side of the village of Wheathampstead, Hertfordshire, England. It is protected as a Scheduled Monument. It is generally agreed to have been part of the defences of an Iron Age settlement belonging to the Catuvellauni tribe of Ancient Britain. It has possible associations with Julius Caesar's second invasion of Britain
Grim's Ditch, Grim's Dyke or Grim's Bank is a name shared by a number of prehistoric bank and ditch earthworks. Enigmatic in both their naming and original function, examples are found across the chalk uplands of southern England.
Fleam Dyke is a linear earthwork between Fulbourn and Balsham in Cambridgeshire. It is now a Scheduled Monument and a 7.8 hectare biological Site of Special Scientific Interest. It formed a boundary of the late Anglo-Saxon, pre-Norman administrative division of Flendish Hundred.
Wat's Dyke is a 40-mile (64 km) earthwork running through the northern Welsh Marches from Basingwerk Abbey on the River Dee estuary, passing east of Oswestry and on to Maesbury in Shropshire, England. It runs generally parallel to Offa's Dyke, sometimes within a few yards but never more than three miles (5 km) away. It now appears insignificant, sometimes a raised hedgerow and in other places is now no more than a cropmark, the ditch long since filled in and the bank ploughed away, but originally it was a considerable construction, considered to be more sophisticated than Offa's Dyke.
The Aberford Dykes are a series of archaeological monuments located around the valley of the Cock Beck, where it runs just north of the village of Aberford on the border between North and West Yorkshire, England.
In archaeology, earthworks are artificial changes in land level, typically made from piles of artificially placed or sculpted rocks and soil. Earthworks can themselves be archaeological features, or they can show features beneath the surface.
Ponter's Ball Dyke is a linear earthwork located near Glastonbury in Somerset, England. It crosses, at right angles, an ancient road that continues on to the Isle of Avalon. It consists of an embankment with a ditch on the east side. It is built across the ridge of land between Glastonbury and West Pennard. Both ends of the ditch and dyke disappear into moorland, formerly swamps.
The Scheduled Ancient Monument of Alloway Mote, also known as the Alloway Moat or Alloway Motte, is a roughly circular earthwork that is regarded as a possible early medieval ringwork, located near the town of Alloway in South Ayrshire, Scotland.
Deil's Dyke, Pict's Dyke or Celt's Dyke in south-west lowland Scotland is a linear earthwork that roughly follows the contours that divide upland pasture from lowland arable land, effectively acting like the head-dykes of medieval and later times although its true purpose has not been settled. The Deil's Dyke, sometimes written as 'dike', is formed from an earthen berm of rounded form that varies from 2.0-4.0m wide and a maximum of 0.7m high sometimes having a stone core. Where a fosse accompanies the bank it is usually an inconsequential 0.5m or so in width on average and around 0.4m deep, more often located on the uphill or outfield side. As a defensive structure the dyke has no obvious military value and its erratic route mitigates against it being a practical political boundary.
