Environment Agency monitoring station
St Johns Weir
Sherston Avon · Malmesbury · Bristol Avon Little Avon Axe and North Somerset St catchment
EA station reference
531158
Live measurement feed
Water level over the last seven days
Readings show measured change at this instrument. A station reading is not a flood warning and, without an official threshold, does not prove that the river is safe or dangerous.
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Station location
Blue point = monitoring instrument, not a reported flood.
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About this station
- Monitors
- Sherston Avon
- Catchment
- Bristol Avon Little Avon Axe and North Somerset St
- Nearest named place
- Malmesbury
- EA opening date
- 17 February 2003
- Coordinates
- 51.58087, -2.09482
Nearby designated monitoring areas
Directory areas whose reference point is within approximately 10 km. Proximity does not mean this station controls that area or that a warning is active.
- Riverside properties on Old Sodom Lane, The Green and Dauntsey Green including Earl Danbys Primary School. Sodom Lane including Barn Farm and Evergreen Farm and the area around the Providance ChapelDesignated warning area · EA ref 112FWFDAU10A
- Upper River Avon and tributaries including Malmesbury, Dauntsey, Chippenham and CalneDesignated alert area · EA ref 112WAFTUBA
- Olivemead Lane, The Green and Sodom Lane including Great Dairy Farm. Church Lane including Dauntsey Fields Farm and Union Farm and the Swallet Gate area including St James and St JohnsDesignated warning area · EA ref 112FWFDAU10B
- Westport Bridge, The Maltings, St Johns Bridge, St Johns Street, Inner Silk Mills and The MulberriesDesignated warning area · EA ref 112FWFSAV20A
- Park Road, Poole Road, Gloucester Road, Mill Lane and BaskervilleDesignated warning area · EA ref 112FWFTAV10A
- Bristol Avon and tributaries from downstream of Malmesbury to Chippenham including Cow Bridge, Hullavington, Corston, Rodbourne, Kingsmead Mill, Great Somerford, Lower Seagry, Christian Malford, Sutton Benger, Kellaways, East Tytherton and StanleyDesignated warning area · EA ref 112FWFAVN10A
- Sherston Avon from Luckington to upstream of Malmesbury including Brook End on the Luckington Brook, Sherston and Easton GreyDesignated warning area · EA ref 112FWFSAV10A
Nearby monitoring stations
Use nearby instruments for context, but do not compare absolute station-datum values as if they shared the same baseline.
Source and limits: station directory and readings from the Environment Agency under the Open Government Licence v3.0. API readings can be delayed or unavailable. For warnings and emergency advice, use the official GOV.UK flood service.