River Levels
River Levels

River Hart at Crondall Pond

Current River Level

0.520m

At 11:00am, Saturday 21st December GMT

Within the usual range for this location

Rising, 0.010 from previous measurement at 7:00am, Saturday 21st December GMT

Flood Warning Areas Covering Here

River Whitewater and River Hart

No current or recent warnings.

Groundwater flooding in the Crondall area

No current or recent warnings.

Other Nearby Flood Warning Areas

River Wey at Farnham

No current or recent warnings.

River Wey at Alton

No current or recent warnings.

River Hart at Crookham Village, Hartley Wintney and Riseley

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: Crondall Pond
  • Watercourse: River Hart
  • Nearest Town/Village: Crondall
  • Local Authority: Hart
  • Ceremonial County: Hampshire
  • Coordinates: 51°13'58"N 0°51'50"W (51.232867,-0.864146)
  • OS Grid: SU794488 (479400,148800)
  • Mapcode (Local): GBR C8H.QB6
  • Mapcode (Global): VHDY0.Z80Q
  • Open Location Code: 9C3X64MP+48
  • Maidenhead Locator System: IO91nf65
  • Environment Agency Location ID: 2451TH
  • Environment Agency Gauge ID: 2451TH-level-stage-i-15_min-mASD
  • River Levels Online ID: 7145
  • Water Information System ID: 2451TH
  • Operational Area: Loddon
  • Catchment Area: Loddon and tributaries
  • UK Hydrometric Area: Thames
  • Environment Agency Region: Thames
  • Datum Type: Above Stage Datum (ASD)
  • Stage Datum: 84m 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 River Hart at Crondall Pond is between -0.35m and 0.80m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the River Hart at Crondall Pond over the past 12 months has been between 0.37m and 0.63m. It has been between these levels for at least 152 days in the past year.

The highest level ever recorded at the River Hart at Crondall Pond is 1.19m, reached on Sunday 26th November 2006 at 11:45am.

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

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