River Levels
River Levels

Chew Magna Reservoir Monitoring Station

Current Reservoir Level


At 12:45am, Monday 20th May BST
(11:45pm, Sunday 19th May GMT)

Within the usual range for this location

Steady, no change from previous measurement at 12:30am, Monday 20th May BST

Important! The levels for this location are measured relative to sea level, not relative to the riverbed. The levels shown here do not, therefore, necessarily represent the actual depth of the water.

Flood Warning Areas Covering Here

River Chew catchment

No current or recent warnings.

Winford Brook at Chew Magna

No current or recent warnings.

Chew Stoke Stream and River Chew at Chew Stoke and Chew Magna

No current or recent warnings.

Other Nearby Flood Warning Areas

River Chew from Stanton Drew to the Bristol Avon at Keynsham

No current or recent warnings.

Brislington Brook, other properties set back from the river

No current or recent warnings.

Seven Day Level Chart

Long Term Level Chart

Darker blue shaded areas on long term data indicate maximum and minimum levels for the date (you may need to zoom in closer to see them).

Long term data may have gaps where the API data was not available.

Download long term data as csv

Note: CSV data will include any outlying values that have been ignored by our graphing system as probably erroneous (eg, because they are ridiculously high compared to the values either side of them). It is your responsibility to filter these out if necessary.

Important! If you are planning to retrieve the csv data automatically, you must read and understand the limitations on the data and its availability.

Location and Technical Data

  • Monitoring Station: Chew Magna Reservoir
  • Watercourse: Winford Brook
  • Nearest Town/Village: Chew Magna
  • Local Authority: Bath and North East Somerset
  • Ceremonial County: Somerset
  • Coordinates: 51°22'1"N 2°37'18"W (51.36697,-2.621881)
  • OS Grid: ST5680363285 (356803,163285)
  • Mapcode (Local): GBR JP.T366
  • Mapcode (Global): VH890.HWSY
  • Open Location Code: 9C3V998H+Q6
  • Maidenhead Locator System: IO81qi58
  • Environment Agency Location ID: 53160
  • Environment Agency Gauge ID: 53160-level-stage-i-15_min-mAOD
  • Operational Area: Bristol Avon Rural
  • Catchment Area: Avon Bristol and North Somerset Streams
  • UK Hydrometric Area: Avon (Bristol)
  • Environment Agency Region: South West
  • Level Datum: Above Ordnance Datum (AOD)

Please note: Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.

The usual range of the Chew Magna Reservoir Monitoring Station is between 3.42m and 54.44m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the Chew Magna Reservoir Monitoring Station over the past 12 months has been between 53.96m and 54.46m. It has been between these levels for at least 151 days in the past year.

Nearby Monitoring Locations

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