| Dobbs Weir Lock | |
|---|---|
 Looking north | |
 | |
| 51°45′09″N0°00′12″E / 51.752395°N 0.003307°E | |
| Waterway | River Lee Navigation |
| County | Hertfordshire Essex |
| Maintained by | Canal & River Trust |
| Operation | Manual |
| Length | 85 feet (25.9 m) |
| Width | 16 feet (4.9 m) |
| Fall | 5 feet 1 inch (1.5 m) |
| Distance to Bow Creek | 18.3 miles (29.5 km) |
| Distance to Hertford Castle Weir | 8.0 miles (12.9 km) |
Dobbs Weir Lock (No 6) is a lock on the River Lee Navigation near Hoddesdon.
The lock is south of the nearby Dobbs Weir, and stands close to the confluence of the Lynch Brook and the Old River Lea. To the east of the lock is the Nazeing Mead complex of lakes which incorporates part of the River Lee Flood Relief Channel.
Vehicular access via Meadgate Road from Carthagena Lock.
Walking and cycle access along the towpath that forms part of the Lea Valley Walk.
The River Lea is in the East of England and Greater London. It originates in Bedfordshire, in the Chiltern Hills, and flows southeast through Hertfordshire, along the Essex border and into Greater London, to meet the River Thames at Bow Creek. It is one of the largest rivers in London and the easternmost major tributary of the Thames.
The Lee Navigation is a canalised river incorporating the River Lea. It flows from Hertford Castle Weir to the River Thames at Bow Creek; its first lock is Hertford Lock and its last Bow Locks.
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.
This article contains a complete list of locks and weirs on the River Lea/River Lee Navigation from Hertford downstream.
Nazeing is a village and parish in Essex, England. Within the parish are the separate settlements of Upper Nazeing, Middle Nazeing, and Lower Nazeing. The Prime Meridian passes to the west of Lower Nazeing.
The Lea Valley Walk is a 50-mile (80 km) long-distance path located between Leagrave, the source of the River Lea near Luton, and the Thames, at Limehouse Basin, Limehouse, east London. From its source much of the walk is rural. At Hertford the path follows the towpath of the River Lee Navigation, and it becomes increasingly urbanised as it approaches London. The walk was opened in 1993 and is waymarked throughout using a swan logo.
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.
Carthagena Weir is a weir located at Broxbourne on the River Lea. The well oxygenated water with depths ranging to over 16 ft, makes it an ideal environment for coarse fish including the common barbel.
Kings Weir is a weir on the River Lea near Turnford and Nazeing in Hertfordshire, England.
The Lee Flood Relief Channel (FRC) is located in the Lea Valley and flows between Ware, Hertfordshire, and Stratford, east London. Work started on the channel in 1947 following major flooding and it was fully operational by 1976. The channel incorporates existing watercourses, lakes, and new channels. Water from the channel feeds the Lee Valley Reservoir Chain.
Old Ford Lock is a paired lock and weir on the River Lee Navigation, in the London Borough of Tower Hamlets, England. It is at Fish Island in Old Ford and takes its name from the natural ford which used to cross the River Lea.
Carthagena Lock (No7) is a lock on the River Lee Navigation at Broxbourne
Feildes Weir Lock (No5) is a lock on the River Lee Navigation located in Hoddesdon.
Ware Lock (No2) is a lock on the River Lee Navigation at Ware. The lock stands adjacent to Ware Weir and is the only lock on the Navigation to be operated and maintained by the Environment Agency.
Pond Lane Flood Gates is a redundant flood defence structure, located near Lea Bridge Road on the River Lee Navigation in the London Borough of Hackney, England.
The Middlesex Filter Beds Weir, or Lea Bridge Road Weir, marks the start of the Hackney Cut, an artificial channel of the River Lee Navigation built in 1770, in the London Borough of Hackney. The weir lies between the former Middlesex Filter Beds – now a nature reserve – and the Thames Water treatment works at Lea Bridge Road.
Three Mills Wall River Weir is a weir on the Bow Back Rivers, in Mill Meads in the London Borough of Newham, England, near to Three Mills. It was built in 2009, when the Bow Back Rivers were refurbished to make them a key feature of the Queen Elizabeth Olympic Park, and maintains water levels through much of the park in conjunction with the Three Mills Lock and sluice on the Prescott Channel.
The Hackney Cut is an artificial channel of the Lee Navigation built in England in 1769 by the River Lea Trustees to straighten and improve the Navigation. It begins at the Middlesex Filter Beds Weir, below Lea Bridge, and is situated in the (modern) London Borough of Hackney. When built it contained two pound locks and a half-lock, but was rebuilt to handle larger barges in the 1850s, and now only Old Ford Lock, which is actually a duplicated pair, remains.
The River Lynch, also known as the Lynch Brook, is a minor tributary of the River Lea in Hoddesdon, Hertfordshire, England.
The Broxbourne Mill Stream which diverges from the River Lee Navigation just south of Dobbs Weir, is one of the few remaining 'old river' loops of the River Lea, with a relatively natural channel form and a diverse range of habitats. Broxbourne developed as a small settlement for milling at a river crossing point at Broxbourne Mill. Spital Brook empties into the Mill Stream by Nazeing New Road.