Carries | Traffic |
---|---|
Span range | Short |
Material | Usually none (natural, preexisting), but sometimes supplemented with concrete or asphalt for vehicles. |
Movable | No |
Design effort | None or low |
Falsework required | No |
A ford is a shallow place with good footing where a river or stream may be crossed by wading, or inside a vehicle getting its wheels wet. [1] A ford may occur naturally or be constructed. Fords may be impassable during high water. A low-water crossing is a low bridge that allows crossing over a river or stream when water is low but may be treated as a ford when the river is high and water covers the crossing.
The word ford is both a noun (describing the water crossing itself) and a verb (describing the act of crossing a ford).
A ford is a much cheaper form of river crossing than a bridge, and it can transport much more weight than a bridge, but it may become impassable after heavy rain or during flood conditions. A ford is therefore normally only suitable for very minor roads (and for paths intended for walkers and horse riders etc.). Most modern fords are usually shallow enough to be crossed by cars and other wheeled or tracked vehicles (a process known as "fording"). Fords may be accompanied by stepping stones for pedestrians.
The United Kingdom has more than 2,000 fords, and most of them do not have any way of stopping vehicles from crossing when the water makes them impassable. [2] According to The AA, many flood-related vehicle breakdowns are at fords. [2]
In New Zealand, fords are a normal part of roads, including, until 2010, along State Highway 1 on the South Island's east coast. [3] In dry weather, drivers become aware of a ford by crunching across outwash detritus on the roadway. A Bailey bridge may be built off the mainline of the road to carry emergency traffic during high water.
At places where the water is shallow enough, but the material on the riverbed will not support heavy vehicles, fords are sometimes improved by building a submerged concrete floor. In such cases, a curb (kerb) is often placed on the downstream side to prevent vehicles from slipping off, as the growth of algae will often make the slab very slippery. Fords may be also equipped with a post indicating the water depth, so that users may know if the water is too deep to attempt to cross. Some have an adjacent footbridge so that pedestrians may cross dryshod.
Fords were sometimes the only way to cross, such as at the Milkhouse at Rock Creek in Washington, DC, but the regular use of this ford has been superseded by bridges. [4] The crossing remained for "adventurous" drivers until 1996 when the National Park Service closed the ford to cars. [5]
A road running below the water level of a stream or river is often known as a "watersplash". It is a common name for a ford or stretch of wet road in some areas, and is sometimes also used to describe tidal crossings. They have become a common feature in rallying courses. Some enthusiasts seek out and drive through these water features, recording details (such as wave created, position, and access) on dedicated websites. [6]
There are many old fords known as watersplashes in the United Kingdom. Examples are at Brockenhurst in Hampshire, Wookey in Somerset, and Swinbrook in Oxfordshire. Some of these are being replaced by bridges as these are a more reliable form of crossing in adverse weather conditions.
Some very spectacular watersplashes can be found in diverse locations. Australia has the Gulf Savannah, and others may be found in Canada, Italy, South Africa, and Finland. They are also found on some Tennessee backroads, where they are referred to as "underwater bridges".
In Israel and part of the British areas under the mandate a low water crossing or watersplash had been known as the "Irish bridge" [7] in reference to the Anglo–Irish war. [8] [9]
The names of many towns and villages are derived from the word 'ford'. Examples include Oxford (a ford where oxen crossed the river: see the Coat of arms of Oxford); Hertford, the county town of Hertfordshire (the ford where harts cross or "deer crossing"); Brantford, (the ford where Joseph Brant Forded The Grand River); Ammanford (a ford on the River Amman); Stafford, the county town of Staffordshire ('ford by a staithe', or 'ford by the landing place'), Staffort crossing the river Pfinz; and Stratford (a ford on a Roman street). Similarly, the German word Furt (as in Frankfurt, the ford of the Franks; Ochsenfurt, synonymous to Oxford; Schweinfurt, a ford where swine crossed the river; and Klagenfurt, literally "ford of complaints") and the Dutch voorde (as in Vilvoorde, Coevorden, Zandvoort, or Amersfoort) are cognates with the same meaning, all deriving from Proto-Indo-European *pértus 'crossing'. This is the source of Brythonic and Gaulish ritus (modern Welsh rhyd; the Welsh name of Oxford is Rhydychen "ford of oxen"), which underlies such names as Chambord (from Gaulish *Camboritum "ford at the bend") and Niort (Novioritum "new ford").
Towns such as Maastricht, Dordrecht, and Utrecht also formed at fords. The endings tricht, drecht, and trecht are derived from the Latin word traiectum, meaning "crossing". Thus the name Utrecht, originally the Roman fort of Traiectum, is derived from "Uut Trecht", meaning "downstream crossing". The Afrikaans form was taken into South African English as drift and led to place names like Rorke's Drift and Velddrift. Similarly, in Slavic languages, the word brod comes from the linguistic root that means "river-crossing" or "place where a river can be crossed". Although today brod in the Serbo-Croatian means 'ship', Slavonski Brod in Croatia, as well as Makedonski Brod in North Macedonia and other place names containing Brod in Slavic countries, where brod is still the word for 'ford', are named after fords.
In historic times, positioning an army in large units close to a river was thought best for direct defense as well as to attack the enemy at any crossing point. [10] Therefore, a ford was often a strategic military point with many famous battles fought at or near fords:
Slavonski Brod, commonly shortened to simply Brod, is a city in eastern Croatia, near the border with Bosnia and Herzegovina. Being one of the principal cities in the historical regions of Slavonia and Posavina, Slavonski Brod is the 7th largest city in the country, with a population of 59,141 at the 2011 census. It is the centre of Brod-Posavina County and a major river port on the Sava river.
The Shenandoah Valley is a geographic valley and cultural region of western Virginia and the Eastern Panhandle of West Virginia in the United States. The Valley is bounded to the east by the Blue Ridge Mountains, to the west by the eastern front of the Ridge-and-Valley Appalachians, to the north by the Potomac River, to the south by the James River, and to the Southwest by the New River Valley. The cultural region covers a larger area that includes all of the Valley plus the Virginia Highlands to the west and the Roanoke Valley to the south. It is physiographically located within the Ridge and Valley Province and is a portion of the Great Appalachian Valley.
A pontoon bridge, also known as a floating bridge, uses floats or shallow-draft boats to support a continuous deck for pedestrian and vehicle travel. The buoyancy of the supports limits the maximum load that they can carry.
Brockenhurst is the largest village by population within the New Forest in Hampshire, England. The nearest city is Southampton some 13 miles (21 km) to the north-east, while Bournemouth is also nearby, 15 miles (24 km) south-west. Surrounding towns and villages include Beaulieu, Lymington, Lyndhurst, and Sway.
The Chickahominy is an 87-mile-long (140 km) river in eastern Virginia. The river, which serves as the eastern border of Charles City County, rises about 15 miles (24 km) northwest of Richmond and flows southeast and south to the James River. The river was named after the Chickahominy Indian tribe who lived near the river when the English colonists arrived in 1607. Chickahominy descendants live in Charles City County today.
The Battle of Monocacy was fought on July 9, 1864, about 6 miles (9.7 km) from Frederick, Maryland, as part of the Valley Campaigns of 1864 during the American Civil War. Confederate forces under Lt. Gen. Jubal A. Early defeated Union forces under Maj. Gen. Lew Wallace. The battle was part of Early's raid through the Shenandoah Valley and into Maryland in an attempt to divert Union forces from their siege of Gen. Robert E. Lee's army at Petersburg, Virginia.
The First Battle of Rappahannock Station, as took place on August 23, 1862, at present-day Remington, Virginia, as part of the Northern Virginia Campaign of the American Civil War.
Monasterevin, sometimes Monasterevan, is a town in County Kildare, Ireland. It lies on the River Barrow and the Barrowline, a canal branch of the Grand Canal. In the 20 years between the 2002 and 2022 censuses, the population more than doubled, from 2,583 to 5,307 inhabitants. The town is in a townland and civil parish of the same name.
The Battle of Chalk Bluff, also known as the Skirmish at Chalk Bluff, was a military engagement of the American Civil War. The battle was fought near Chalk Bluff, northwest of St. Francis, where U.S. Brigadier General William Vandever, commanding the Second Division of the Army of the Frontier, was repulsed in an attempt to prevent Confederate General John S. Marmaduke's Division from crossing the St. Francis River. Though a Confederate victory, Marmaduke suffered considerable casualties and his momentum had been checked, forcing him to abandon his second expedition into Missouri.
The Battle of Elkin's Ferry, also known as Engagement at Elkin's Ferry, was fought in Clark and Nevada counties in Arkansas as part of the Camden Expedition, during the American Civil War.
Cath Áth an Chip, meaning the Battle of Ath an Chip, alias the "Battle of Connacht", was fought in 1270 between the Hiberno-Normans and the Gaels of Connacht in County Leitrim in Ireland. The result was a decisive Gaelic victory. "Athanchip", then a ford marked by a tree-stump", is today the place called "Battle Bridge". The battle site is probably Drumhierney townland and Leitrim village.
A low-water crossing is a low-elevation roadway traversing over a waterbody that stays dry above the water when the flow is low, but is designed to get submerged under high-flow conditions such as floods. This type of crossing is much cheaper to build than a high bridge that keeps the road surface consistently above the highest water level, and is usually deployed in semi-arid areas where high-volume rainfall is rare and the existing channel is shallow, particularly in developing countries.
Loudoun County, Virginia, was destined to be an area of significant military activity during the American Civil War. Located on Virginia's northern frontier, the Potomac River, Loudoun County became a borderland after Virginia's secession from the Union in early 1861. Loudoun County's numerous Potomac bridges, ferries and fords made it an ideal location for the Union and Confederate armies to cross into and out of Virginia. Likewise, the county's several gaps in the Blue Ridge Mountains that connected the Piedmont to the Shenandoah Valley and Winchester were of considerable strategic importance. The opposing armies would traverse the county several times throughout the war leading to several small battles, most notably the Battle of Ball's Bluff.
Stoneman's raid was a cavalry operation led by General George Stoneman during the Chancellorsville Campaign that preceded the start of the Battle of Chancellorsville in the American Civil War.
High Bridge Trail State Park is a rail trail in Southside Virginia converted from a rail line last belonging to Norfolk Southern.
The Emigrant Trail in Wyoming, which is the path followed by Western pioneers using the Oregon, California, and Mormon Trails, spans 400 miles (640 km) through the U.S. state of Wyoming. The trail entered from Nebraska on the eastern border of the state near the present day town of Torrington and exited on the western border near the towns of Cokeville and Afton. An estimated 350,000 to 400,000 settlers traveled on the trail through Wyoming between 1841 and 1868. All three trails follow the same path through most of the state. The Mormon Trail splits at Fort Bridger and enters Utah, while the Oregon and California Trails continue to Idaho.
Deep wading or deep fording is a technique used by some heavy semi-amphibious vehicles to traverse water that is several metres deep - the vehicle drives on the riverbed/lakebed/seabed and uses screens or a pipe that reaches above the water surface for an air supply. The technique has been used by armoured military vehicles such as tanks and armored personnel carriers. Deep fording generally implies driving through water of such a depth that the vehicle is mostly or entirely submerged by the water, sometimes to several times the height of the vehicle itself, as well as a sealed crew compartment, complete with air supply for the crew. This makes it different from the less extreme "wading" done by many off-road vehicles which are simply fitted with a snorkel that is higher than the normal engine air intake, roughly level with the top of the cab. In these cases, the crew compartment is not watertight, and the snorkel provides air only for the engine. Thus maximum height is limited by the crew's need to breathe, and very rarely completely submerges the vehicle.
Brod is a formerly independent settlement in the northern part of the capital Ljubljana in central Slovenia. It is part of the traditional region of Upper Carniola and is now included with the rest of the municipality in the Central Slovenia Statistical Region.
Bow Bridge was a stone bridge built over the River Lea, in what is now London, in the twelfth century. It took its name from the distinctively bow-shaped (curved) arches.
Military Road is a major east–west collector road and limited-access road in the northwestern quadrant of Washington, D.C., United States.