River Levels
River Levels

River Bulbourne at Hemel Hempstead, Old Fishery Lane

Current River Level

0.960m

At 3:15am, Sunday 3rd March GMT

Within the usual range for this location

Steady, no change from previous measurement at 3:00am, Sunday 3rd March GMT

Latest Flow

0.67 m3/s

(Daily Average)

Recorded on Friday 1st March

Above normal flow volume

Increase, 0.27 from previous recording on Thursday 29th February

Flood Warning Areas Covering Here

Rivers Gade and Bulbourne

Flood Alert

River Bulbourne at Boxmoor

No current or recent warnings.

River Gade at Hemel Hempstead

No current or recent warnings.

Other Nearby Flood Warning Areas

River Gade at Frogmore End

No current or recent warnings.

River Chess at Chenies

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: Hemel Hempstead, Old Fishery Lane
  • Watercourse: River Bulbourne
  • Nearest Town/Village: Hemel Hempstead
  • Local Authority: Dacorum
  • Ceremonial County: Hertfordshire
  • Coordinates: 51°44'40"N 0°29'47"W (51.744674,-0.49654)
  • OS Grid: TL0389606178 (503896,206178)
  • Mapcode (Local): GBR G6S.F9T
  • Mapcode (Global): VHFS5.BDVW
  • Open Location Code: 9C3XPGV3+V9
  • Maidenhead Locator System: IO91sr08
  • Environment Agency Location ID: 2844TH
  • Environment Agency Gauge ID: 2844TH-level-stage-i-15_min-mASD
  • Operational Area: Colne
  • Catchment Area: Colne
  • UK Hydrometric Area: Thames
  • Environment Agency Region: Thames
  • Datum Type: Above Stage Datum (ASD)
  • Stage Datum: 83.07m 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 Bulbourne at Hemel Hempstead, Old Fishery Lane is between 0.64m and 1.99m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the River Bulbourne at Hemel Hempstead, Old Fishery Lane over the past 12 months has been between 0.63m and 0.90m. It has been between these levels for at least 152 days in the past year.

The highest level ever recorded at the River Bulbourne at Hemel Hempstead, Old Fishery Lane is 1.80m, reached on Wednesday 23rd September 1992 at 12:00am.

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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