
Mooring here is impossible (it may be physically impossible, forbidden, or allowed only for specific short-term purposes). It's a lick.
There is a bridge here which takes a minor road over the canal.
This is a lock with a rise of 0f0.
| Hanham (former colliery wharf) | 2 miles, ½ furlongs | |
| Conham | 1 mile, 5 furlongs | |
| Crew's Hole Road Footbridge | 2¾ furlongs | |
| Netham Lock Weir Entrance | ¾ furlongs | |
| Netham Road Bridge (south) | ¼ furlongs | |
| Netham Lock No 1 | ||
| Marsh Lane Bridge (Bristol) | 1½ furlongs | |
| Cole Road Railway Bridge | 3½ furlongs | |
| St. Philips Causeway Bridge | 3¾ furlongs | |
| Feeder Road Pipe Bridge No 1 | 4 furlongs | |
| Feeder Road Pipe Bridge No 2 | 4¼ furlongs | |
Amenities nearby at Marsh Lane Bridge (Bristol)
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Nearest water point
In the direction of Cumberland Basin Entrance Lock No 2
In the direction of Hanham Lock No 1
Nearest rubbish disposal
In the direction of Hanham Lock No 1
Nearest chemical toilet disposal
In the direction of Hanham Lock No 1
Nearest place to turn
In the direction of Cumberland Basin Entrance Lock No 2
In the direction of Hanham Lock No 1
Nearest self-operated pump-out
In the direction of Cumberland Basin Entrance Lock No 2
Nearest boatyard pump-out
In the direction of Cumberland Basin Entrance Lock No 2
Wikipedia has a page about Netham Lock
Netham Lock (grid reference ST616727) is the point at Netham in Bristol at which boats from the River Avon, acting as part of the Kennet and Avon Canal, gain access to Bristol's Floating Harbour.
Construction started in 1804 to build the tidal New Cut and divert the River Avon along the Feeder Canal to the harbour; a system designed and built by William Jessop and later improved by Isambard Kingdom Brunel.
A weir carries the river into the New Cut and boats use the adjacent lock. High tides often pass over the weir, and the river is effectively tidal to the next lock upstream at Hanham. Some spring tides can also pass over the weir at Hanham, making the river tidal as far as Keynsham Lock.
Access to the harbour is only possible during the day when the lock keeper will open the gates unless the water level in the river between Netham and Hanham is above or below the level of the harbour.
The maximum dimensions of a vessel which can pass through Netham Lock are:
- Length: 24.4 metres (80 ft)
- Beam: 5.4 metres (18 ft)
- Draught: 1.9 metres (6.2 ft)
- Headroom: 3.1 metres (10 ft)
The lock-keeper's cottage, built in the early nineteenth century, is a grade II listed building and has a plaque listing it as Bristol Docks building number 1. The floral displays around the cottage and on the banking have attracted praise.
Netham Lock and the weir form part of Bristol's flood defence mechanisms and it was announced in December 2008 that they would be upgraded as part of the £11 million City Docks Capital Project.

![Netham Lock, Feeder Canal, Bristol. The lock only functions at the highest tides, when water comes over the weir [[3386338]] and raises the level of the River Avon. The gates then close to prevent water spilling into the Floating Harbour. by Christine Johnstone – 03 May 2015](https://s1.geograph.org.uk/geophotos/04/48/50/4485033_c307e944_120x120.jpg)
















![Netham Dam and New Brislington Bridge. Until the early 1800's, Bristol Docks were tidal, which made it awkward unloading ships. This weir was built to keep the water level in the Floating Harbour constant, and a new channel was dug for the River Avon to flow down. Although the river is theoretically tidal as far as Keynsham Lock, the effects of tides are much reduced upstream of this point. The same spot, seen from the opposite direction, can be seen here [[[2279498]]] by Antony Dixon – 16 April 2012](https://s3.geograph.org.uk/geophotos/02/90/18/2901815_488bd550_120x120.jpg)





![Tidal weir on the unnavigable River Avon. Maintains the navigable level upstream of New Brislington Bridge [from which the photo was taken]. by Christine Johnstone – 23 March 2013](https://s2.geograph.org.uk/geophotos/03/38/63/3386338_d67585b7_120x120.jpg)




![Netham Lock. A tourist boat returning from lunch at [[181383]] by Pierre Terre – 20 May 2006](https://s1.geograph.org.uk/photos/18/20/182069_9c31eca8_120x120.jpg)
