Latest river level information for:
the Addlestone Bourne at Grants Bridge

12:05am Thursday 24 August 2017

Latest level 0.34m

Normal range is 0.33m to 1.55m

Recorded at 7:00pm Wednesday 23 August 2017

River levels at this location in the last 5 days

Flooding is possible over 1.55m

What's the highest recorded level here?

Highest recorded level 2.50m on 16 August 2006

This is the highest water level recorded here since the station was opened.

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DateTime	Value	Error
2017-08-23T18:00Z	0.34	false
2017-08-23T17:45Z	0.34	false
2017-08-23T17:30Z	0.34	false
2017-08-23T17:15Z	0.34	false
2017-08-23T17:00Z	0.34	false
2017-08-23T16:45Z	0.34	false
2017-08-23T16:30Z	0.34	false
2017-08-23T16:15Z	0.34	false
2017-08-23T16:00Z	0.34	false
2017-08-23T15:45Z	0.34	false
2017-08-23T15:30Z	0.34	false
2017-08-23T15:15Z	0.34	false
2017-08-23T15:00Z	0.34	false
2017-08-23T14:45Z	0.35	false
2017-08-23T14:30Z	0.35	false
2017-08-23T14:15Z	0.35	false
2017-08-23T14:00Z	0.35	false
2017-08-23T13:45Z	0.35	false
2017-08-23T13:30Z	0.35	false
2017-08-23T13:15Z	0.35	false
2017-08-23T13:00Z	0.35	false
2017-08-23T12:45Z	0.35	false
2017-08-23T12:30Z	0.35	false
2017-08-23T12:15Z	0.34	false
2017-08-23T12:00Z	0.35	false
2017-08-23T12:00Z	0.35	false
2017-08-23T11:45Z	0.34	false
2017-08-23T11:45Z	0.34	false
2017-08-23T11:30Z	0.35	false
2017-08-23T11:30Z	0.35	false
2017-08-23T11:15Z	0.34	false
2017-08-23T11:15Z	0.34	false
2017-08-23T11:00Z	0.35	false
2017-08-23T11:00Z	0.35	false
2017-08-23T10:45Z	0.34	false
2017-08-23T10:45Z	0.34	false
2017-08-23T10:30Z	0.35	false
2017-08-23T10:30Z	0.35	false
2017-08-23T10:15Z	0.34	false
2017-08-23T10:15Z	0.34	false
2017-08-23T10:00Z	0.35	false
2017-08-23T10:00Z	0.35	false
2017-08-23T09:45Z	0.34	false
2017-08-23T09:45Z	0.34	false
2017-08-23T09:30Z	0.34	false
2017-08-23T09:30Z	0.34	false
2017-08-23T09:15Z	0.34	false
2017-08-23T09:15Z	0.34	false
2017-08-23T09:00Z	0.34	false
2017-08-23T09:00Z	0.34	false
2017-08-23T08:45Z	0.34	false
2017-08-23T08:45Z	0.34	false
2017-08-23T08:30Z	0.34	false
2017-08-23T08:30Z	0.34	false
2017-08-23T08:15Z	0.34	false
2017-08-23T08:15Z	0.34	false
2017-08-23T08:00Z	0.34	false
2017-08-23T08:00Z	0.34	false
2017-08-23T07:45Z	0.34	false
2017-08-23T07:45Z	0.34	false
2017-08-23T07:30Z	0.34	false
2017-08-23T07:30Z	0.34	false
2017-08-23T07:15Z	0.34	false
2017-08-23T07:15Z	0.34	false
2017-08-23T07:00Z	0.34	false
2017-08-23T07:00Z	0.34	false
2017-08-23T06:45Z	0.33	false
2017-08-23T06:45Z	0.33	false
2017-08-23T06:30Z	0.34	false
2017-08-23T06:30Z	0.34	false
2017-08-23T06:15Z	0.34	false
2017-08-23T06:15Z	0.34	false
2017-08-23T06:00Z	0.33	false
2017-08-23T06:00Z	0.33	false
2017-08-23T05:45Z	0.33	false
2017-08-23T05:45Z	0.33	false
2017-08-23T05:30Z	0.33	false
2017-08-23T05:30Z	0.33	false
2017-08-23T05:15Z	0.33	false
2017-08-23T05:15Z	0.33	false
2017-08-23T05:00Z	0.33	false
2017-08-23T05:00Z	0.33	false
2017-08-23T04:45Z	0.33	false
2017-08-23T04:45Z	0.33	false
2017-08-23T04:30Z	0.33	false
2017-08-23T04:30Z	0.33	false
2017-08-23T04:15Z	0.33	false
2017-08-23T04:15Z	0.33	false
2017-08-23T04:00Z	0.33	false
2017-08-23T03:45Z	0.33	false
2017-08-23T03:30Z	0.33	false
2017-08-23T03:15Z	0.33	false
2017-08-23T03:00Z	0.33	false
2017-08-23T02:45Z	0.32	false
2017-08-23T02:30Z	0.33	false
2017-08-23T02:15Z	0.32	false
2017-08-23T02:00Z	0.33	false
2017-08-23T01:45Z	0.33	false
2017-08-23T01:30Z	0.33	false
2017-08-23T01:15Z	0.33	false
2017-08-23T01:00Z	0.33	false
2017-08-23T00:45Z	0.33	false
2017-08-23T00:30Z	0.33	false
2017-08-23T00:15Z	0.33	false
2017-08-23T00:00Z	0.33	false
2017-08-22T23:45Z	0.33	false
2017-08-22T23:30Z	0.33	false
2017-08-22T23:15Z	0.33	false
2017-08-22T23:00Z	0.33	false
2017-08-22T22:45Z	0.33	false
2017-08-22T22:30Z	0.33	false
2017-08-22T22:15Z	0.33	false
2017-08-22T22:00Z	0.33	false
2017-08-22T21:45Z	0.33	false
2017-08-22T21:30Z	0.33	false
2017-08-22T21:15Z	0.33	false
2017-08-22T21:00Z	0.33	false
2017-08-22T20:45Z	0.33	false
2017-08-22T20:30Z	0.33	false
2017-08-22T20:15Z	0.33	false
2017-08-22T20:00Z	0.33	false
2017-08-22T19:45Z	0.33	false
2017-08-22T19:30Z	0.33	false
2017-08-22T19:15Z	0.33	false
2017-08-22T19:00Z	0.33	false
2017-08-22T18:45Z	0.33	false
2017-08-22T18:30Z	0.33	false
2017-08-22T18:15Z	0.33	false
2017-08-22T18:00Z	0.33	false
2017-08-22T18:00Z	0.33	false
2017-08-22T17:45Z	0.33	false
2017-08-22T17:45Z	0.33	false
2017-08-22T17:30Z	0.33	false
2017-08-22T17:30Z	0.33	false
2017-08-22T17:15Z	0.33	false
2017-08-22T17:15Z	0.33	false
2017-08-22T17:00Z	0.33	false
2017-08-22T17:00Z	0.33	false
2017-08-22T16:45Z	0.33	false
2017-08-22T16:45Z	0.33	false
2017-08-22T16:30Z	0.33	false
2017-08-22T16:30Z	0.33	false
2017-08-22T16:15Z	0.33	false
2017-08-22T16:15Z	0.33	false
2017-08-22T16:00Z	0.33	false
2017-08-22T16:00Z	0.33	false
2017-08-22T15:45Z	0.33	false
2017-08-22T15:45Z	0.33	false
2017-08-22T15:30Z	0.33	false
2017-08-22T15:30Z	0.33	false
2017-08-22T15:15Z	0.33	false
2017-08-22T15:15Z	0.33	false
2017-08-22T15:00Z	0.33	false
2017-08-22T15:00Z	0.33	false
2017-08-22T14:45Z	0.33	false
2017-08-22T14:45Z	0.33	false
2017-08-22T14:30Z	0.33	false
2017-08-22T14:30Z	0.33	false
2017-08-22T14:15Z	0.33	false
2017-08-22T14:15Z	0.33	false
2017-08-22T14:00Z	0.33	false
2017-08-22T14:00Z	0.33	false
2017-08-22T13:45Z	0.33	false
2017-08-22T13:45Z	0.33	false
2017-08-22T13:30Z	0.33	false
2017-08-22T13:30Z	0.33	false
2017-08-22T13:15Z	0.33	false
2017-08-22T13:15Z	0.33	false
2017-08-22T13:00Z	0.33	false
2017-08-22T13:00Z	0.33	false
2017-08-22T12:45Z	0.33	false
2017-08-22T12:45Z	0.33	false
2017-08-22T12:30Z	0.33	false
2017-08-22T12:30Z	0.33	false
2017-08-22T12:15Z	0.33	false
2017-08-22T12:15Z	0.33	false
2017-08-22T12:00Z	0.33	false
2017-08-22T11:45Z	0.34	false
2017-08-22T11:30Z	0.34	false
2017-08-22T11:15Z	0.34	false
2017-08-22T11:00Z	0.34	false
2017-08-22T10:45Z	0.34	false
2017-08-22T10:30Z	0.34	false
2017-08-22T10:15Z	0.34	false
2017-08-22T10:00Z	0.34	false
2017-08-22T09:45Z	0.34	false
2017-08-22T09:30Z	0.35	false
2017-08-22T09:15Z	0.34	false
2017-08-22T09:00Z	0.35	false
2017-08-22T08:45Z	0.35	false
2017-08-22T08:30Z	0.34	false
2017-08-22T08:15Z	0.35	false
2017-08-22T08:00Z	0.35	false
2017-08-22T07:45Z	0.35	false
2017-08-22T07:30Z	0.35	false
2017-08-22T07:15Z	0.34	false
2017-08-22T07:00Z	0.35	false
2017-08-22T06:45Z	0.35	false
2017-08-22T06:30Z	0.34	false
2017-08-22T06:15Z	0.35	false
2017-08-22T06:00Z	0.34	false
2017-08-22T05:45Z	0.35	false
2017-08-22T05:30Z	0.34	false
2017-08-22T05:15Z	0.35	false
2017-08-22T05:00Z	0.35	false
2017-08-22T04:45Z	0.34	false
2017-08-22T04:30Z	0.34	false
2017-08-22T04:15Z	0.35	false
2017-08-22T04:00Z	0.34	false
2017-08-22T04:00Z	0.34	false
2017-08-22T03:45Z	0.34	false
2017-08-22T03:45Z	0.34	false
2017-08-22T03:30Z	0.34	false
2017-08-22T03:30Z	0.34	false
2017-08-22T03:15Z	0.34	false
2017-08-22T03:15Z	0.34	false
2017-08-22T03:00Z	0.34	false
2017-08-22T03:00Z	0.34	false
2017-08-22T02:45Z	0.34	false
2017-08-22T02:45Z	0.34	false
2017-08-22T02:30Z	0.34	false
2017-08-22T02:30Z	0.34	false
2017-08-22T02:15Z	0.35	false
2017-08-22T02:15Z	0.35	false
2017-08-22T02:00Z	0.34	false
2017-08-22T02:00Z	0.34	false
2017-08-22T01:45Z	0.35	false
2017-08-22T01:45Z	0.35	false
2017-08-22T01:30Z	0.35	false
2017-08-22T01:30Z	0.35	false
2017-08-22T01:15Z	0.35	false
2017-08-22T01:15Z	0.35	false
2017-08-22T01:00Z	0.35	false
2017-08-22T01:00Z	0.35	false
2017-08-22T00:45Z	0.35	false
2017-08-22T00:45Z	0.35	false
2017-08-22T00:30Z	0.35	false
2017-08-22T00:30Z	0.35	false
2017-08-22T00:15Z	0.35	false
2017-08-22T00:15Z	0.35	false
2017-08-22T00:00Z	0.35	false
2017-08-21T23:45Z	0.35	false
2017-08-21T23:30Z	0.35	false
2017-08-21T23:15Z	0.35	false
2017-08-21T23:00Z	0.35	false
2017-08-21T22:45Z	0.35	false
2017-08-21T22:30Z	0.35	false
2017-08-21T22:15Z	0.35	false
2017-08-21T22:00Z	0.35	false
2017-08-21T21:45Z	0.35	false
2017-08-21T21:30Z	0.35	false
2017-08-21T21:15Z	0.35	false
2017-08-21T21:00Z	0.35	false
2017-08-21T20:45Z	0.35	false
2017-08-21T20:30Z	0.35	false
2017-08-21T20:15Z	0.35	false
2017-08-21T20:00Z	0.35	false
2017-08-21T19:45Z	0.35	false
2017-08-21T19:30Z	0.35	false
2017-08-21T19:15Z	0.35	false
2017-08-21T19:00Z	0.35	false
2017-08-21T18:45Z	0.35	false
2017-08-21T18:30Z	0.35	false
2017-08-21T18:15Z	0.35	false
2017-08-21T18:00Z	0.35	false
2017-08-21T17:45Z	0.35	false
2017-08-21T17:30Z	0.35	false
2017-08-21T17:15Z	0.35	false
2017-08-21T17:00Z	0.35	false
2017-08-21T16:45Z	0.35	false
2017-08-21T16:30Z	0.35	false
2017-08-21T16:15Z	0.35	false
2017-08-21T16:00Z	0.35	false
2017-08-21T15:45Z	0.35	false
2017-08-21T15:30Z	0.35	false
2017-08-21T15:15Z	0.35	false
2017-08-21T15:00Z	0.35	false
2017-08-21T14:45Z	0.35	false
2017-08-21T14:30Z	0.35	false
2017-08-21T14:15Z	0.35	false
2017-08-21T14:00Z	0.35	false
2017-08-21T13:45Z	0.35	false
2017-08-21T13:30Z	0.35	false
2017-08-21T13:15Z	0.35	false
2017-08-21T13:00Z	0.35	false
2017-08-21T12:45Z	0.35	false
2017-08-21T12:30Z	0.35	false
2017-08-21T12:15Z	0.35	false
2017-08-21T12:00Z	0.36	false
2017-08-21T11:45Z	0.35	false
2017-08-21T11:30Z	0.36	false
2017-08-21T11:15Z	0.36	false
2017-08-21T11:00Z	0.36	false
2017-08-21T10:45Z	0.36	false
2017-08-21T10:30Z	0.36	false
2017-08-21T10:15Z	0.36	false
2017-08-21T10:00Z	0.36	false
2017-08-21T09:45Z	0.36	false
2017-08-21T09:30Z	0.36	false
2017-08-21T09:15Z	0.36	false
2017-08-21T09:00Z	0.36	false
2017-08-21T08:45Z	0.36	false
2017-08-21T08:30Z	0.36	false
2017-08-21T08:15Z	0.36	false
2017-08-21T08:00Z	0.36	false
2017-08-21T07:45Z	0.36	false
2017-08-21T07:30Z	0.36	false
2017-08-21T07:15Z	0.36	false
2017-08-21T07:00Z	0.36	false
2017-08-21T06:45Z	0.36	false
2017-08-21T06:30Z	0.36	false
2017-08-21T06:15Z	0.36	false
2017-08-21T06:00Z	0.35	false
2017-08-21T05:45Z	0.35	false
2017-08-21T05:30Z	0.35	false
2017-08-21T05:15Z	0.35	false
2017-08-21T05:00Z	0.35	false
2017-08-21T04:45Z	0.34	false
2017-08-21T04:30Z	0.34	false
2017-08-21T04:15Z	0.35	false
2017-08-21T04:00Z	0.35	false
2017-08-21T03:45Z	0.34	false
2017-08-21T03:30Z	0.35	false
2017-08-21T03:15Z	0.35	false
2017-08-21T03:00Z	0.35	false
2017-08-21T02:45Z	0.35	false
2017-08-21T02:30Z	0.35	false
2017-08-21T02:15Z	0.35	false
2017-08-21T02:00Z	0.35	false
2017-08-21T01:45Z	0.35	false
2017-08-21T01:30Z	0.35	false
2017-08-21T01:15Z	0.35	false
2017-08-21T01:00Z	0.34	false
2017-08-21T00:45Z	0.34	false
2017-08-21T00:30Z	0.34	false
2017-08-21T00:15Z	0.34	false
2017-08-21T00:00Z	0.34	false
2017-08-20T23:45Z	0.34	false
2017-08-20T23:30Z	0.34	false
2017-08-20T23:15Z	0.33	false
2017-08-20T23:00Z	0.33	false
2017-08-20T22:45Z	0.33	false
2017-08-20T22:30Z	0.32	false
2017-08-20T22:15Z	0.32	false
2017-08-20T22:00Z	0.32	false
2017-08-20T21:45Z	0.32	false
2017-08-20T21:30Z	0.33	false
2017-08-20T21:15Z	0.33	false
2017-08-20T21:00Z	0.33	false
2017-08-20T20:45Z	0.33	false
2017-08-20T20:30Z	0.33	false
2017-08-20T20:15Z	0.33	false
2017-08-20T20:00Z	0.33	false
2017-08-20T19:45Z	0.33	false
2017-08-20T19:30Z	0.33	false
2017-08-20T19:15Z	0.33	false
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2017-08-20T07:45Z	0.34	false
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2017-08-20T07:30Z	0.35	false
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2017-08-19T23:45Z	0.34	false
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2017-08-19T17:30Z	0.34	false
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2017-08-19T16:00Z	0.35	false
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2017-08-19T15:15Z	0.34	false
2017-08-19T15:00Z	0.35	false
2017-08-19T14:45Z	0.35	false
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2017-08-19T14:00Z	0.35	false
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2017-08-19T13:30Z	0.35	false
2017-08-19T13:15Z	0.35	false
2017-08-19T13:00Z	0.35	false
2017-08-19T12:45Z	0.35	false
2017-08-19T12:30Z	0.35	false
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2017-08-19T11:45Z	0.35	false
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2017-08-19T11:15Z	0.35	false
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2017-08-19T10:45Z	0.35	false
2017-08-19T10:30Z	0.35	false
2017-08-19T10:15Z	0.36	false
2017-08-19T10:00Z	0.36	false
2017-08-19T09:45Z	0.36	false
2017-08-19T09:30Z	0.36	false
2017-08-19T09:15Z	0.36	false
2017-08-19T09:00Z	0.36	false
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2017-08-19T08:30Z	0.36	false
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2017-08-19T07:45Z	0.36	false
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2017-08-19T03:30Z	0.36	false
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2017-08-19T03:15Z	0.36	false
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2017-08-19T02:00Z	0.36	false
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2017-08-19T01:45Z	0.36	false
2017-08-19T01:45Z	0.36	false
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2017-08-19T01:30Z	0.36	false
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2017-08-18T22:45Z	0.35	false
2017-08-18T22:30Z	0.35	false
2017-08-18T22:15Z	0.35	false
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2017-08-18T21:45Z	0.35	false
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2017-08-18T20:45Z	0.36	false
2017-08-18T20:30Z	0.36	false
2017-08-18T20:15Z	0.36	false
2017-08-18T20:00Z	0.36	false
2017-08-18T19:45Z	0.36	false
2017-08-18T19:30Z	0.36	false
2017-08-18T19:15Z	0.36	false
2017-08-18T19:00Z	0.36	false
2017-08-18T18:45Z	0.37	false
2017-08-18T18:30Z	0.37	false
2017-08-18T18:15Z	0.39	false

Other measuring stations in this area

• Monitoring station
• Monitoring station with flood risk
• Monitoring station unavailable
• Location of the place you entered

Zoom into the map and select a river or sea level station to see more information.

Key information

• Station name: Grants Bridge
• Station ID: 7224
• River name: Addlestone Bourne
• Typical range: 0.33m to 1.55m
• Highest level on record: 2.50m on 16 August 2006
• Site datum: 24.00mAOD (what does this mean?)

How are river levels measured?

The Environment agency uses a network of monitoring stations across the country. Each one has its own datum - a height in metres fixed relative to mean sea level. This height is expressed as metres above ordnance datum (mAOD). The river levels we provide for each monitoring station are all relative to its site datum.

If we didn't do this, we'd show some very high measurements, which could cause confusion. By using a local site datum, the river levels are easier to understand, especially by users familiar with the data from a particular monitoring station.

A river's height above ordnance datum can be seen by adding the site datum to the river level.

How often are river and sea levels measured?

The data we collect is fed into this service once or twice a day under typical conditions. We increase this frequency whenever there's a greater risk of flooding.

How might river levels affect flood risk?

Typical range

This is the usual range of river levels at this station, based on historical data.

Above typical

This means that flooding is possible because river levels at this station are currently higher than usual.
Many factors can influence the possibility of flooding - river levels are only one indicator. Always check if there's a flood warning in place at a particular location.

Below typical

This means that river levels at this station are currently lower than usual.
Drought or water management measures may be in place. Please check for the latest information on water resources and restrictions in your area.

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