River Levels
River Levels

River Colne at Farlows Bridge

Current River Level


At 3:30am, Wednesday 24th July BST
(2:30am, Wednesday 24th July GMT)

Within the usual range for this location

Falling, -0.010 from previous measurement at 3:15am, Wednesday 24th July BST

Flood Warning Areas Covering Here

Colne Brook at Iver

No current or recent warnings.

Colne Brook at Iver and Colnbrook

No current or recent warnings.

Other Nearby Flood Warning Areas

Lower River Colne and Frays River

Recent warnings or alerts no longer in force

River Pinn at Yiewsley

No current or recent warnings.

River Pinn at Uxbridge

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: Farlows Bridge
  • Watercourse: River Colne
  • Nearest Town/Village: Iver
  • Local Authority: South Bucks
  • Ceremonial County: Buckinghamshire
  • Coordinates: 51°31'5"N 0°29'53"W (51.518153,-0.498245)
  • OS Grid: TQ0429680984 (504296,180984)
  • Mapcode (Local): GBR 0C.51D
  • Mapcode (Global): VHFTB.93YJ
  • Open Location Code: 9C3XGG92+7P
  • Maidenhead Locator System: IO91sm04
  • Environment Agency Location ID: 2883TH
  • Environment Agency Gauge ID: 2883TH-level-stage-i-15_min-mASD
  • River Levels Online ID: 9298
  • Water Information System ID: 2883TH
  • Catchment Area: Colne (Lower)
  • UK Hydrometric Area: Thames
  • Environment Agency Region: Thames
  • Datum Type: Above Stage Datum (ASD)
  • Stage Datum: 25.5m 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 Colne at Farlows Bridge is between 0.22m and 1.06m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the River Colne at Farlows Bridge over the past 12 months has been between 0.39m and 1.16m. It has been between these levels for at least 150 days in the past year.

The highest level ever recorded at the River Colne at Farlows Bridge is 1.31m, reached on Saturday 30th January 2021 at 11:15pm.

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

There are no other monitoring stations on the River Colne

There are no other monitored rivers nearby

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