Feildes Weir Lock

Feildes Weir is a weir on the River Lea located in Hoddesdon, Hertfordshire at the confluence of the River Lea and River Stort. The weir marks the start of the Lower Lee. A channel of the man-made River Lee Flood Relief Channel is incorporated into the weir.

The River Stort is a river in Essex and Hertfordshire, England. It is 24 miles (38 km) long and flows from just south of the village of Langley to the River Lea at Hoddesdon. The river's name is a back-formation from the name of the town of Bishop's Stortford. The 16th-century cartographers Christopher Saxton and William Camden named it the Stort, assuming the town of Stortford was named for its ford. The river was originally called the Stour.The Stort Navigation is the canalised section of the River Stort running 22 kilometres (14 mi) from Bishop's Stortford to its confluence with the Lee Navigation. It has 15 locks.

The Tollhouse Stream is a watercourse in Hertfordshire, England. It rises in the Rye Meads a sewage treatment works on the northeastern bank of the River Lea close to Hoddesdon before flowing in a southeasterly direction. Treated effluent is discharged into the stream before merging with the River Stort shortly before its confluence with the River Lea.

Rye House Power Station is a 715 MW combined cycle gas turbine (CCGT) power station located near Rye House railway station in Hoddesdon, Hertfordshire.

Rye House Kart Circuit is a kart circuit, in Hoddesdon, Hertfordshire, England, and is adjacent to the Rye House Stadium. The circuit is one of the oldest in the country, and has been used by drivers including Jenson Button, Anthony Davidson and Lewis Hamilton.

Rye House Stadium was a greyhound racing and speedway venue in Rye Road, Hoddesdon, Hertfordshire. It is situated adjacent to the River Lea Navigation.

Rye House railway station is on the Hertford East branch line off the West Anglia Main Line in the east of England, serving the Rye House area of Hoddesdon, Hertfordshire. It is 18 miles 71 chains (30.4 km) down the line from London Liverpool Street and is situated between Broxbourne and St Margarets. Its three-letter station code is RYH. The station and all trains calling are operated by Greater Anglia.

Rye House in Hoddesdon, Hertfordshire is a former fortified manor house, located in what is now the Lee Valley Regional Park. The gatehouse is the only surviving part of the structure and is a Grade I listed building. The house gave its name to the Rye House Plot, an assassination attempt of 1683 that was a violent consequence of the Exclusion Crisis in British politics at the end of the 1670s.

Dobbs Weir is both a weir in Hoddesdon, Hertfordshire and an area of Roydon, Essex in England on the River Lea. It is well known for angling, outdoor beauty and watersports. It is overlooked by the Fish and Eels pub.

Nether Hall or Netherhall is a former manor in Roydon, Essex, England. Established during the medieval period, Nether Hall contained two manor houses built in the mid-15th century and occupied by the Colte family. Thomas More married one of the Colte daughters and visited Nether Hall during their courtship. Although the central part of the manor, including one of the houses, was demolished in the 1770s, it is a scheduled monument and the ruined gatehouse is a Grade I listed building with Historic England. Several outer farm buildings, including the other manor house, are still standing and are also listed buildings.

Rye Meads is a 58.5-hectare (145-acre) biological Site of Special Scientific Interest (SSSI) in Rye House, Hoddesdon, Hertfordshire. It is one of series of wetlands and reservoirs situated along the River Lea, to the north-east of London. It is part of the Lea Valley Ramsar site (a group of internationally important wetland sites) and a Special Protection Area. The SSSI is divided into three areas. North of Rye Road is the Rye Meads nature reserve, which is open to the public. The western half of this nature reserve, next to the River Lea in the Lee Valley Regional Park, is managed by the Royal Society for the Protection of Birds (RSPB). The eastern half is managed by the Hertfordshire and Middlesex Wildlife Trust (HMWT). The SSSI also includes a meadow and lagoons owned by Thames Water south of Rye Road which is not open to the public.The RSPB reserve has ten birdwatching hides, trails and a visitor centre. Birds include kingfisher, snipe, green sandpiper, shoveler, gadwall and tufted duck.The HMWT site is an ancient flood meadow which has a variety of habitats including reedbed, marshy grassland and fen. It is grazed by ponies and water buffalo.The entrance to the nature reserve is on Rye Road. There is a path around the site, but a one-way turnstile blocks wheelchairs and pushchairs, and only allows access from the RSPB half to the HMWT area, not vice versa.

Dobbs Weir Lock (No 6) is a lock on the River Lee Navigation near Hoddesdon.