River Chew - A Somerset Stream
"But in my opinion, all things in nature occur mathematically." - René Descartes
River Chew Facts And figures
A SELECTION OF River Chew-related information and data, gathered from numerous sources. Please note that some of the figures quoted on this page are approximate values only, intended as a rough guideline.

Sluice cogs, Chewton Keynsham Towns & Villages
The river runs through a largely rural landscape, punctuated by settlements at Chewton Mendip, Ford, Litton, Sherborne, Coley, South Widcombe, Chew Stoke, Chew Magna, Stanton Drew, Bye Mills, Pensford, Publow, Woollard, Compton Dando, Chewton Keynsham and Keynsham. There are in excess of a dozen mill sites on the river, some of which were noted in the Domesday Book of 1086.

Catchment Data
Total river length: Approximately 27 km (17 mi), including reservoirs.
Catchment area: Approximately 145 km2 (56 mi2).
Maximum catchment height: 305 m above mean sea level (Black Down, Mendips).
Catchment geology: Mixed geology - predominantly clay, some coal measures.
Height of source: 150 m above mean sea level (Chewton Mendip).
Height of confluence: 10 m above mean sea level (Keynsham).
Average gradient: 1 m in 200 m.

Flow Data
Average annual rainfall: 988mm (based on data from 1961-1990).
Mean flow: 1.18 cubic metres per second.
Peak winter flow: Approx 6-10 cubic metres per second.
Extreme peak flow: In excess of 25 cubic metres per second.
Minimum summer flow: Approx 0.5 cubic metres per second.

Aquatic Life
Chew Valley Lake in winter The River Chew is home to a large variety of fish including Brown Trout, Rainbow Trout, Grayling, Chub, Dace, Perch, Bream, Tench, Carp, Barbel, Crucian Carp, Pike, Roach, Rudd, Gudgeon, Minnow, Miller's Thumb, Brook Lamprey, Stone Loach, Stickleback and Eel.

Small numbers of returning Sea Trout and Salmon are occasionally present in the lower and middle river. Fish passes have been incorporated into weirs at Keynsham Memorial Park, Albert Mill and Chewton Place, allowing the upstream migration of game species.

Flounder and Dab are sometimes found in the lower reaches at Keynsham, in addition to returning elvers. Small numbers of Crayfish are also evident.

Tributaries
The River Chew has over thirty mapped tributaries including Harptree Brook, Winford Brook, Strode Brook, Salter's Brook, Belluton Brook, Bathford Brook, Wooscombe Brook and Candlestick Brook.

Cattle drinking from the River Chew at Publow

Back To The Top |  Previous Page |  Next Page

 
Related Articles, Maps & Further Reading
River Chew source, Chewton Mendip
River Chew source,
Chewton Mendip

Upper Reservoir spillway, Litton
Upper Reservoir
spillway, Litton

The Mill Ground, Keynsham
The Mill Ground, upstream
from Keynsham

Signpost near Compton Dando
S.C.C. Signpost near
Compton Dando

Temporarily lowered, Chewton Keynsham
Temporarily lowered,
Chewton Keynsham

Flow measuring station, Compton Dando
Flow measuring station,
Compton Dando

Wooscombe Brook
Wooscombe Brook

The Mill Ground, Keynsham
The Mill Ground, Keynsham

Downstream from Brunel's Bridge, Keynsham
Downstream from Brunel's
Bridge, Keynsham

Beneath the A4 bridge, Keynsham Park
Beneath the A4 bridge,
Keynsham Park

Albert Mill weir pool near Keynsham
Albert Mill pool
near Keynsham

Information sign, Chew Valley Lake
Information sign,
Chew Valley Lake
www.riverchew.co.uk

Website contents © 2005-2017 Jason Allen except where stated otherwise. All rights reserved.
Website design, text and photography by Jason Allen.