Hoo Peninsula

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Hoo Peninsula

The Hoo Peninsula is a peninsula in Kent, separating the estuaries of the rivers Thames and Medway. It is dominated by a line of sand and clay hills, surrounded by an extensive area of marshland composed of alluvial silt. The name Hoo is the Old English word for spur of land.[1]


The Romans have been credited with the first two attempts at building a sea wall. The subsequent draining of the marshes created pastureland to support sheep.

The area is rich in archaeology. Bronze Age implements and Jutish cemeteries have been found on the peninsula, and Roman pottery at Cooling. It was once the point of departure across the ancient Saxon fording point over the River Thames to Essex.

Much of the peninsula lies in theHundred of Hoo. To be precise, the Hundred comprises the ancient parishes and churches of Hoo St Werburgh, High Halstow, St Mary's Hoo, Allhallows and part of Stoke. The Isle of Grain, then a complete island, lies in the Hundred of Gillingham; the remainder of the parish of Stoke lying in the Hundred of Shamel.[2]

William the Conqueror granted his half-brother, Odo, the large estate of Hoo.

During the First World War this peninsula was the site of an explosives factory and storage facility.


The marshes

The Peninsula's marshlands are part of the North Kent Marshes and now form a major part of two protected areas: the Thames Estuary and Marshlands, and the Medway Estuary and Marshes. The Thames Estuary area covers the 15 miles from Gravesend to the Isle of Grain; the Medway Area 15 miles from Rochester to the Isle of Grain: a total of 38 square miles of marshlands. Both are Sites of Special Scientific Interest and Special Protected Areas. They include coastal grazing marsh, intertidal mudflats, saltmarsh and lagoons. On the line of hills lies the Northwood Hill National Nature Reserve.

Nature reserve

The Hoo Peninsula is home to a 130-acre nature reserve located in High Halstow, one of the many villages on the peninsula, called High Halstow NNR. The reserve is also part of the Royal Society for the Protection of Birds Northwood Hill SSSI[3] site which includes 270 hectares of grazing marsh, woodland and farmland. The area features the largest heronry in Britain,[4] where some 150–200 pairs nest. A heronry has been in the woods from at least 1947, when it was mentioned in a book on the Hundred of Hoo by Ralph Arnold.[5] High Halstow NNR was declared a National Nature Reserve in 1951.

The Thames and Medway Canal

The Rivers Thames and Medway were joined by the eight-mile long Thames and Medway Canal, the construction of which started in 1805. With basins providing ports and access to the two rivers at Gravesend and Strood, the canal passed through a two-mile tunnel at Higham, broken in the centre by a shaft to allow boats to pass. Construction was difficult and expensive and it was not completed until 1824. Shortly afterwards, the tunnel became part of the railway linking Higham with Strood. The line of this now-silted canal can be considered a convenient boundary marking the landward edge of the peninsula.

The tunnel which passes through large beds of chalk, but to cut engineering costs many sections were not lined, this caused various rock falls between 1957 and 2004. As these rock falls could cause derailment, the tunnel was closed to trains for the duration of 2004 and was relined with reinforced concrete. It reopened in early January 2005.[6]


The only main road is the A228, which crosses the old Roman London Road (also called Watling Street, now the A2 at Strood and then follows the high ground eastwards. It meets the Medway Towns Northern Bypass (A289) at the bottom of Four Elms Hill and climbs to Chattenden, bypassing Hoo St Werburgh and High Halstow, before crossing to the Isle of Grain. On the Peninsula this road is known as the 'Ratcliffe Highway'.

The other principal route on the peninsula, the B2000, heads north to Cliffe on the edge of Cliffe marshes, part of the North Kent Marshes. This is a winding country road, much used by industrial transport serving the larger farms, including Mockbeggar Farm,[7] and the industrial jetties onto the River Thames. The B2000 passes through Cliffe Woods under the name of 'Town Road', and enters Cliffe, where it becomes first 'Station Road', from the location of the now vanished station of the Hundred of Hoo railway, and then 'Church Street'. At the northern edge of the village the road becomes 'Pond Hill' and leads down the cliff to an unmetalled track on the marshes.

The B2000 is rural in nature with several interesting old buildings along its route. There remains a Grade-II-listed red-brick farmhouse dating from the 17th century 'Mockbeggar Farm' [7] and its barn, 25 yards south of the farmhouse, and a Grade-II building 'Mortimer's Farm House, Cliffe'.[8]

Another Grade-II-listed farmhouse is Fenn Street Farmhouse, timber-framed and mediæval in origin, with parts dated to the 15th century. Its age may be judged by the fact that in 1760 the building was refaced.[9]

There are numerous other minor roads on the higher ground, and a number of roads and trackways across the marshes, some of which eventually reach the sea walls.

The Hundred of Hoo Railway

Hundred of Hoo Railway, shown with other railway lines in Kent.

In 1878, Henry Pye with a deputation of other local farmers met the South Eastern Railway Company with a request for a new railway to be built in the area. From this meeting a new company was established, the Hundred of Hoo Railway Company. The SER saw it as part of the development of continental traffic, and the ferry terminal at what was named Port Victoria was built as terminus of the line. The traffic did not materialise and that section of the line and the line beyond Grain closed in 1951.

The first part of the line to be opened was in March 1882, from Cliffe to Sharnal Street. This was later extended east to the Isle of Grain. Sharnal Street was the larger of the two original stations and was provided with goods sidings, where the local farmers were able to load their produce to be transported directly to the London markets. It was also at Sharnal Street that telegram and mail collections were effected.

On 14 May 1932 a branch railway was opened to the Thames estuary beyond the ancient village of Allhallows. It was intended to become a riverside resort of some size, and grandiose plans were formed. The new area was given the name of Allhallows-on-Sea. Little came of the scheme, and today all signs of that branch have disappeared, save for the water tower which supplied locomotives at the terminus – it is now a listed building. There is a holiday village on the site where the resort was intended to be.[10]

Power stations

The peninsula is home to many land-hungry industries, including three power stations (Grain, Kingsnorth and Damhead Creek), a gas import plant and a container terminal. Most of these are on the Isle of Grain, but Kingsnorth lies on the south edge of the peninsula, up the River Medway from Grain. It opened in 1967 and burns coal or oil according to the economics of each. As with others in this area, the site has proved challenging. During building the reclaimed marshland was found to have poor load-bearing properties. Kingsnorth's ground level was some four feet below the highest tide even then, and tide levels are expected to rise another three feet in coming years. For the planners, these disadvantages were outweighed by the proximity to London, the availability of cooling water from the River Medway, and deep-water berthing for oil tankers and colliers.

Villages on the Hoo Peninsula


  • Kingsnorth, Public Relations Branch, Central Electricity Generating Board SE Region, c1979
  1. The Place Names of Kent, Judith Glover, 1976, Batsford. ISBN 0-905270-61-4
  2. Arnold, Ralph (1974). The Hundred of Hoo. 
  3. "Northward Hill (High Halstow NNR)". naturalengland.org.uk. 1981. http://www.sssi.naturalengland.org.uk/citation/citation_photo/1003887.pdf. Retrieved 9 May 2014. 
  4. "Northward Hill RSPB". Wild Travel Magazine. 2008. http://www.wildlifeextra.com/go/uk/northward-hill.html#cr. Retrieved 28 November 2013. 
  5. Arnold, Ralph (1947). The Hundred of Hoo. 
  6. Warren, Colin; Thomas, Iain (2006). "Geotechnical aspects of the Strood and Higham railway tunnel relining and refurbishment" (PDF). geolsoc.org. http://iaeg2006.geolsoc.org.uk/cd/PAPERS/IAEG_046.PDF. Retrieved 29 December 2016. 
  7. 7.0 7.1 "Mockbeggar, Higham". http://www.britishlistedbuildings.co.uk/en-356769-mockbeggar-higham-kent. Retrieved 26 November 2013. 
  8. "Mortimer's Farm House, Cliffe and Cliffe Woods". http://www.britishlistedbuildings.co.uk/en-172851-mortimer-s-farm-house-cliffe-and-cliffe-. Retrieved 26 November 2013. 
  9. "Fenn Street Farm House, St Mary Hoo". http://www.britishlistedbuildings.co.uk/en-172917-fenn-street-farm-house-st-mary-hoo-. Retrieved 26 November 2013. 
  10. "Isle of Grain Railways", Adrian Gray, Oakwood Press, 1974.


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