Bybrook River
| Bybrook | |
| By Brook | |
| River | |
 |
|
| Country | England |
|---|---|
| Region | West Country |
| District | South Gloucestershire |
| Primary source | Lower Lapdown Farm |
| - location | Tormarton, South Gloucestershire, England |
| - elevation | 574 ft (175 m) |
| - coordinates | 51°29′54″N 2°20′34″W / 51.4983°N 2.3429°W |
| Secondary source | Folly Farm, South Gloucestershire |
| - location | Cold Ashton, South Gloucestershire, England |
| - elevation | 623 ft (190 m) |
| - coordinates | 51°27′23″N 2°21′44″W / 51.4565°N 2.3621°W |
| Source confluence | Nettleton Mill House |
| - location | Castle Combe, Wiltshire, England |
| - elevation | 262.5 ft (80 m) |
| - coordinates | 51°29′55″N 2°14′13″W / 51.4985°N 2.2369°W |
| Mouth | Bristol Avon |
| - location | Batheaston, Bath and North East Somerset, England |
| - elevation | 66 ft (20 m) |
| - coordinates | 51°24′06″N 2°18′37″W / 51.4016°N 2.3102°WCoordinates: 51°24′06″N 2°18′37″W / 51.4016°N 2.3102°W |
| Length | 12 mi (19 km), south |
| Discharge | |
| - average | 57.25 cu ft/s (2 m3/s) |
| - max | 487.6 cu ft/s (14 m3/s) |
| - min | 4.95 cu ft/s (0 m3/s) |
| River system | Bristol Avon |
The Bybrook, also known as the By Brook, is a small river in England. It is a tributary of the Bristol Avon and is some 12 miles (19 km) long. Its sources are the Burton Brook and the Broadmead Brook, which rise in South Gloucestershire at Tormarton and Cold Ashton respectively, and join just north of Castle Combe in Wiltshire. The river has a mean flow rate of 57.25 cubic feet per second (1.621 m3/s) as recorded at Middlehill near Box. A variety of flora and fauna is supported by the river including the endangered white-clawed crayfish. Twenty watermill sites have been identified on the river but none now remain in use.
The Burton Brook rises near Lower Lapdown Farm at Tormarton and runs in an easterly direction towards the village of Burton on the Gloucestershire-Wiltshire border. The Broadmead Brook rises at Folly Farm at Cold Ashton and runs eastwards south of the Burton Brook and the two join below Gatcombe Hill, just north of the Wiltshire village of Castle Combe, at the beginning of a steep valley.
The Bybrook now flows southwards towards the village of Ford. Just before the village, the Danscombe Brook and another unnamed tributary join on the right bank from North Wraxall and Colerne Airfield. On through Slaughterford and turning southwards the Bybrook is joined on the right bank by the Lid at Drewett's Mill, north of Box; locally, the Bybrook is more commonly referred to as the Weavern downstream of Weavern Farm. The stream now runs in a south westerly direction through a shallower valley, past Shockerwick House, before joining the Bristol Avon at Bathford, at a point adjacent to the main railway line from London and the A4 road.
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Wikipedia