Bigsweir is a locality in the Wye Valley

Wye Valley

The Wye Valley Area of Outstanding Natural Beauty is an internationally important protected landscape straddling the border between England and Wales. It is one of the most dramatic and scenic landscape areas in southern Britain....

 Area of Outstanding Natural Beauty

Area of Outstanding Natural Beauty

An Area of Outstanding Natural Beauty is an area of countryside considered to have significant landscape value in England, Wales or Northern Ireland, that has been specially designated by the Countryside Agency on behalf of the United Kingdom government; the Countryside Council for Wales on...

, which straddles the boundary between Gloucestershire

Gloucestershire

Gloucestershire is a county in South West England. The county comprises part of the Cotswold Hills, part of the flat fertile valley of the River Severn, and the entire Forest of Dean....

 in England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

 and Monmouthshire

Monmouthshire

Monmouthshire is a county in south east Wales. The name derives from the historic county of Monmouthshire which covered a much larger area. The largest town is Abergavenny. There are many castles in Monmouthshire .-Historic county:...

 in Wales

Wales

Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...

. It is located about 2 miles north of Llandogo

Llandogo

Llandogo is a small village in Monmouthshire, south Wales, located between Monmouth and Chepstow in the lower reaches of the Wye Valley AONB, two miles north of Tintern. It is set on a steep hillside overlooking the River Wye and across into the Forest of Dean in Gloucestershire, England.- History...

, 2 miles south of Whitebrook

Whitebrook

Whitebrook is a small village in Monmouthshire, south-east Wales, United Kingdom. It is located four miles south east of Monmouth in the Wye Valley.- History and amenities :...

, and 3 miles west of St. Briavels. It is the Normal Tidal Limit (NTL) of the River Wye

River Wye

The River Wye is the fifth-longest river in the UK and for parts of its length forms part of the border between England and Wales. It is important for nature conservation and recreation.-Description:...

, and navigation below this point falls under the jurisdiction of the Gloucester Harbour Trustees

Gloucester Harbour Trustees

The Gloucester Harbour Trustees are the Competent Harbour Authority for the tidal part of the River Severn from the Gloucester weirs down to just below the Second Severn Crossing and on the River Wye up to its tidal limit .The Trustees have responsibilities for navigational safety in that part of...

.

There is no village at Bigsweir. However, it is known for its elegant cast iron

Cast iron

Cast iron is derived from pig iron, and while it usually refers to gray iron, it also identifies a large group of ferrous alloys which solidify with a eutectic. The color of a fractured surface can be used to identify an alloy. White cast iron is named after its white surface when fractured, due...

 road bridge, which was built in 1827 as part of the new turnpike road constructed up the lower part of the Wye valley between Chepstow

Chepstow

Chepstow is a town in Monmouthshire, Wales, adjoining the border with Gloucestershire, England. It is located on the River Wye, close to its confluence with the River Severn, and close to the western end of the Severn Bridge on the M48 motorway...

 and Monmouth

Monmouth

Monmouth is a town in southeast Wales and traditional county town of the historic county of Monmouthshire. It is situated close to the border with England, where the River Monnow meets the River Wye with bridges over both....

. The bridge connects the English and Welsh sides of the river, with an abandoned toll house

Toll house

A tollhouse or toll house is a building with accommodation for a toll collector, beside a tollgate on a toll road or canal. Many tollhouses were built by turnpike trusts in England, Wales and Scotland during the 18th and early 19th centuries...

 on the Welsh side. It comprises a single arch of 50 metres, and was designed by Charles Hollis of London and cast at Merthyr Tydfil

Merthyr Tydfil

Merthyr Tydfil is a town in Wales, with a population of about 30,000. Although once the largest town in Wales, it is now ranked as the 15th largest urban area in Wales. It also gives its name to a county borough, which has a population of around 55,000. It is located in the historic county of...

. Because of its narrow width, modern traffic using the A466 is controlled by traffic signals at either end. The bridge is about 600 metres upstream of the ancient fishing weir

Weir

A weir is a small overflow dam used to alter the flow characteristics of a river or stream. In most cases weirs take the form of a barrier across the river that causes water to pool behind the structure , but allows water to flow over the top...

 and ford

Ford (crossing)

A ford is a shallow place with good footing where a river or stream may be crossed by wading or in a vehicle. A ford is mostly a natural phenomenon, in contrast to a low water crossing, which is an artificial bridge that allows crossing a river or stream when water is low.The names of many towns...

 of Bigsweir, which is close to Bigsweir House.

Bigsweir was also the site of St. Briavels railway station

St. Briavels railway station

St Briavels Station was a station along the Wye Valley Railway. It was built in 1876 during the construction of the line on the Monmouthshire side of the River Wye at Bigsweir, and was intended to serve the nearby villages of St Briavels across the river in the Forest of Dean and Llandogo which is...

, on the now disused Wye Valley Railway

Wye Valley Railway

The Wye Valley Railway was a standard gauge railway that ran for nearly between Chepstow and Monmouth along the lower part of the scenic Wye Valley in Monmouthshire, Wales, and Gloucestershire, England. It followed the route of the River Wye for most of its length...

.