River Levels
River Levels

Alconbury Brook at Hamerton

Current River Level


At 7:30am, Thursday 18th July BST
(6:30am, Thursday 18th July GMT)

Within the usual range for this location

Steady, no change from previous measurement at 3:15am, Thursday 18th July BST

Flood Warning Areas Covering Here

Minor Tributaries of the Nene in Northamptonshire

No current or recent warnings.

Middle Level of the Fens in Cambridgeshire and Norfolk

No current or recent warnings.

Middle Level Commissioner area at Pondersbridge, Turves and Upwell

No current or recent warnings.

Other Nearby Flood Warning Areas

Barnwell Brook in Barnwell

No current or recent warnings.

Alconbury Brook in Cambridgeshire

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: Hamerton
  • Watercourse: Alconbury Brook
  • Nearest Town/Village: Great Gidding
  • Local Authority: Huntingdonshire
  • Ceremonial County: Cambridgeshire
  • Coordinates: 52°25'41"N 0°21'15"W (52.428112,-0.3542)
  • OS Grid: TL 1365 7975 (512000,282400)
  • Mapcode (Local): GBR GZZ.M9Q
  • Mapcode (Global): VHFNY.T73G
  • Open Location Code: 9C4XCJHW+68
  • Maidenhead Locator System: IO92tk72
  • Environment Agency Location ID: E21788
  • Environment Agency Gauge ID: E21788-level-stage-i-15_min-mASD
  • River Levels Online ID: 6075
  • Water Information System ID: L33620
  • Operational Area: Lower Great Ouse
  • Catchment Area: Upper and Bedford Ouse
  • UK Hydrometric Area: Great Ouse
  • Environment Agency Region: Anglian
  • Datum Type: Above Stage Datum (ASD)
  • Stage Datum: 24.8m 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 Alconbury Brook at Hamerton is between 1.02m and 2.20m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the Alconbury Brook at Hamerton over the past 12 months has been between 1.02m and 1.03m. It has been between these levels for at least 163 days in the past year.

The highest level ever recorded at the Alconbury Brook at Hamerton is 3.60m, reached on Friday 10th April 1998 at 1:45am.

Note that this data may not take account of recent measurements, as we wait until a level has been verified by the Environment Agency before adding it to our records.

Nearby Monitoring Locations

Other monitoring locations on the Alconbury Brook

Alconbury Brook Map

Monitoring locations on nearby rivers

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