River level Addlestone Bourne at Grants Bridge

Check for flood warnings in this area

Latest recorded level 0.35m at 12:15am Friday 15 February 2019.

River levels at this location in the last 5 days

Now
▼

• Measured level
• When the water level reaches 1.55m here, minor flooding is possible in this area
• Highest recorded level. Hide
• Show highest recorded level

You're missing out. A graph should be visible here.
Upgrade your browser to see and use all the features of this service.

You're missing out. A graph should be visible here.

Javascript must be enabled.

Observed data

DateTime	Value	Error
2019-02-15T00:15Z	0.346	false
2019-02-15T00:00Z	0.345	false
2019-02-14T23:45Z	0.347	false
2019-02-14T23:30Z	0.344	false
2019-02-14T23:15Z	0.347	false
2019-02-14T23:00Z	0.345	false
2019-02-14T22:45Z	0.347	false
2019-02-14T22:30Z	0.346	false
2019-02-14T22:15Z	0.345	false
2019-02-14T22:00Z	0.348	false
2019-02-14T21:45Z	0.346	false
2019-02-14T21:30Z	0.347	false
2019-02-14T21:15Z	0.343	false
2019-02-14T21:00Z	0.347	false
2019-02-14T20:45Z	0.347	false
2019-02-14T20:30Z	0.346	false
2019-02-14T20:15Z	0.346	false
2019-02-14T20:00Z	0.345	false
2019-02-14T19:45Z	0.346	false
2019-02-14T19:30Z	0.345	false
2019-02-14T19:15Z	0.348	false
2019-02-14T19:00Z	0.346	false
2019-02-14T18:45Z	0.349	false
2019-02-14T18:30Z	0.346	false
2019-02-14T18:15Z	0.347	false
2019-02-14T18:00Z	0.35	false
2019-02-14T17:45Z	0.344	false
2019-02-14T17:30Z	0.347	false
2019-02-14T17:15Z	0.348	false
2019-02-14T17:00Z	0.346	false
2019-02-14T16:45Z	0.349	false
2019-02-14T16:30Z	0.349	false
2019-02-14T16:15Z	0.345	false
2019-02-14T16:00Z	0.345	false
2019-02-14T15:45Z	0.348	false
2019-02-14T15:30Z	0.344	false
2019-02-14T15:15Z	0.346	false
2019-02-14T15:00Z	0.343	false
2019-02-14T14:45Z	0.344	false
2019-02-14T14:30Z	0.344	false
2019-02-14T14:15Z	0.347	false
2019-02-14T14:00Z	0.347	false
2019-02-14T13:45Z	0.346	false
2019-02-14T13:30Z	0.345	false
2019-02-14T13:15Z	0.345	false
2019-02-14T13:00Z	0.345	false
2019-02-14T12:45Z	0.344	false
2019-02-14T12:30Z	0.344	false
2019-02-14T12:15Z	0.345	false
2019-02-14T12:00Z	0.344	false
2019-02-14T11:45Z	0.347	false
2019-02-14T11:30Z	0.347	false
2019-02-14T11:15Z	0.349	false
2019-02-14T11:00Z	0.347	false
2019-02-14T10:45Z	0.347	false
2019-02-14T10:30Z	0.35	false
2019-02-14T10:15Z	0.346	false
2019-02-14T10:00Z	0.346	false
2019-02-14T09:45Z	0.345	false
2019-02-14T09:30Z	0.351	false
2019-02-14T09:15Z	0.349	false
2019-02-14T09:00Z	0.349	false
2019-02-14T08:45Z	0.345	false
2019-02-14T08:30Z	0.349	false
2019-02-14T08:15Z	0.349	false
2019-02-14T08:00Z	0.342	false
2019-02-14T07:45Z	0.349	false
2019-02-14T07:30Z	0.346	false
2019-02-14T07:15Z	0.347	false
2019-02-14T07:00Z	0.348	false
2019-02-14T06:45Z	0.348	false
2019-02-14T06:30Z	0.346	false
2019-02-14T06:15Z	0.346	false
2019-02-14T06:00Z	0.346	false
2019-02-14T05:45Z	0.347	false
2019-02-14T05:30Z	0.348	false
2019-02-14T05:15Z	0.35	false
2019-02-14T05:00Z	0.349	false
2019-02-14T04:45Z	0.352	false
2019-02-14T04:30Z	0.348	false
2019-02-14T04:15Z	0.351	false
2019-02-14T04:00Z	0.352	false
2019-02-14T03:45Z	0.349	false
2019-02-14T03:30Z	0.345	false
2019-02-14T03:15Z	0.35	false
2019-02-14T03:00Z	0.346	false
2019-02-14T02:45Z	0.348	false
2019-02-14T02:30Z	0.347	false
2019-02-14T02:15Z	0.351	false
2019-02-14T02:00Z	0.35	false
2019-02-14T01:45Z	0.347	false
2019-02-14T01:30Z	0.346	false
2019-02-14T01:15Z	0.347	false
2019-02-14T01:00Z	0.347	false
2019-02-14T00:45Z	0.347	false
2019-02-14T00:15Z	0.351	false
2019-02-14T00:00Z	0.348	false
2019-02-13T23:30Z	0.351	false
2019-02-13T23:15Z	0.35	false
2019-02-13T23:00Z	0.346	false
2019-02-13T22:45Z	0.351	false
2019-02-13T22:30Z	0.35	false
2019-02-13T22:15Z	0.35	false
2019-02-13T22:00Z	0.345	false
2019-02-13T21:45Z	0.347	false
2019-02-13T21:30Z	0.351	false
2019-02-13T21:15Z	0.349	false
2019-02-13T21:00Z	0.348	false
2019-02-13T20:45Z	0.35	false
2019-02-13T20:30Z	0.353	false
2019-02-13T20:15Z	0.351	false
2019-02-13T20:00Z	0.351	false
2019-02-13T19:45Z	0.353	false
2019-02-13T19:30Z	0.355	false
2019-02-13T19:15Z	0.348	false
2019-02-13T19:00Z	0.351	false
2019-02-13T18:45Z	0.351	false
2019-02-13T18:30Z	0.353	false
2019-02-13T18:15Z	0.35	false
2019-02-13T18:00Z	0.354	false
2019-02-13T17:45Z	0.349	false
2019-02-13T17:30Z	0.348	false
2019-02-13T17:15Z	0.354	false
2019-02-13T17:00Z	0.35	false
2019-02-13T16:45Z	0.347	false
2019-02-13T16:30Z	0.349	false
2019-02-13T16:15Z	0.348	false
2019-02-13T16:00Z	0.353	false
2019-02-13T15:45Z	0.354	false
2019-02-13T15:30Z	0.348	false
2019-02-13T15:15Z	0.353	false
2019-02-13T15:00Z	0.356	false
2019-02-13T14:45Z	0.352	false
2019-02-13T14:30Z	0.348	false
2019-02-13T14:15Z	0.349	false
2019-02-13T14:00Z	0.35	false
2019-02-13T13:45Z	0.351	false
2019-02-13T13:30Z	0.35	false
2019-02-13T13:15Z	0.354	false
2019-02-13T13:00Z	0.349	false
2019-02-13T12:45Z	0.347	false
2019-02-13T12:30Z	0.352	false
2019-02-13T12:15Z	0.35	false
2019-02-13T12:00Z	0.35	false
2019-02-13T11:45Z	0.348	false
2019-02-13T11:30Z	0.353	false
2019-02-13T11:15Z	0.35	false
2019-02-13T11:00Z	0.35	false
2019-02-13T10:45Z	0.351	false
2019-02-13T10:30Z	0.352	false
2019-02-13T10:15Z	0.348	false
2019-02-13T10:00Z	0.357	false
2019-02-13T09:45Z	0.356	false
2019-02-13T09:30Z	0.356	false
2019-02-13T09:15Z	0.355	false
2019-02-13T09:00Z	0.354	false
2019-02-13T08:45Z	0.358	false
2019-02-13T08:30Z	0.351	false
2019-02-13T08:15Z	0.35	false
2019-02-13T08:00Z	0.352	false
2019-02-13T07:45Z	0.352	false
2019-02-13T07:30Z	0.352	false
2019-02-13T07:15Z	0.354	false
2019-02-13T07:00Z	0.353	false
2019-02-13T06:45Z	0.355	false
2019-02-13T06:30Z	0.354	false
2019-02-13T06:15Z	0.353	false
2019-02-13T06:00Z	0.352	false
2019-02-13T05:45Z	0.347	false
2019-02-13T05:30Z	0.35	false
2019-02-13T05:15Z	0.353	false
2019-02-13T05:00Z	0.354	false
2019-02-13T04:45Z	0.357	false
2019-02-13T04:30Z	0.353	false
2019-02-13T04:15Z	0.355	false
2019-02-13T04:00Z	0.347	false
2019-02-13T03:45Z	0.356	false
2019-02-13T03:30Z	0.357	false
2019-02-13T03:15Z	0.355	false
2019-02-13T03:00Z	0.353	false
2019-02-13T02:45Z	0.35	false
2019-02-13T02:30Z	0.358	false
2019-02-13T02:15Z	0.352	false
2019-02-13T02:00Z	0.353	false
2019-02-13T01:45Z	0.353	false
2019-02-13T01:30Z	0.359	false
2019-02-13T01:15Z	0.359	false
2019-02-13T01:00Z	0.36	false
2019-02-13T00:45Z	0.355	false
2019-02-13T00:30Z	0.358	false
2019-02-13T00:15Z	0.353	false
2019-02-13T00:00Z	0.36	false
2019-02-12T23:45Z	0.352	false
2019-02-12T23:30Z	0.356	false
2019-02-12T23:15Z	0.358	false
2019-02-12T23:00Z	0.362	false
2019-02-12T22:45Z	0.361	false
2019-02-12T22:30Z	0.358	false
2019-02-12T22:15Z	0.359	false
2019-02-12T22:00Z	0.358	false
2019-02-12T21:45Z	0.36	false
2019-02-12T21:30Z	0.358	false
2019-02-12T21:15Z	0.363	false
2019-02-12T21:00Z	0.366	false
2019-02-12T20:45Z	0.358	false
2019-02-12T20:30Z	0.359	false
2019-02-12T20:15Z	0.364	false
2019-02-12T20:00Z	0.359	false
2019-02-12T19:45Z	0.357	false
2019-02-12T19:30Z	0.359	false
2019-02-12T19:15Z	0.361	false
2019-02-12T19:00Z	0.361	false
2019-02-12T18:45Z	0.361	false
2019-02-12T18:30Z	0.354	false
2019-02-12T18:15Z	0.361	false
2019-02-12T18:00Z	0.36	false
2019-02-12T17:45Z	0.363	false
2019-02-12T17:30Z	0.359	false
2019-02-12T17:15Z	0.358	false
2019-02-12T17:00Z	0.365	false
2019-02-12T16:45Z	0.359	false
2019-02-12T16:30Z	0.357	false
2019-02-12T16:15Z	0.36	false
2019-02-12T16:00Z	0.359	false
2019-02-12T15:45Z	0.364	false
2019-02-12T15:30Z	0.358	false
2019-02-12T15:15Z	0.359	false
2019-02-12T15:00Z	0.359	false
2019-02-12T14:45Z	0.362	false
2019-02-12T14:30Z	0.36	false
2019-02-12T14:15Z	0.359	false
2019-02-12T14:00Z	0.365	false
2019-02-12T13:45Z	0.362	false
2019-02-12T13:30Z	0.357	false
2019-02-12T13:15Z	0.358	false
2019-02-12T13:00Z	0.364	false
2019-02-12T12:45Z	0.36	false
2019-02-12T12:30Z	0.361	false
2019-02-12T12:15Z	0.361	false
2019-02-12T12:00Z	0.361	false
2019-02-12T11:45Z	0.364	false
2019-02-12T11:30Z	0.362	false
2019-02-12T11:15Z	0.368	false
2019-02-12T11:00Z	0.366	false
2019-02-12T10:45Z	0.366	false
2019-02-12T10:30Z	0.357	false
2019-02-12T10:15Z	0.366	false
2019-02-12T10:00Z	0.368	false
2019-02-12T09:45Z	0.365	false
2019-02-12T09:30Z	0.367	false
2019-02-12T09:15Z	0.362	false
2019-02-12T09:00Z	0.367	false
2019-02-12T08:45Z	0.361	false
2019-02-12T08:30Z	0.366	false
2019-02-12T08:15Z	0.367	false
2019-02-12T08:00Z	0.366	false
2019-02-12T07:45Z	0.37	false
2019-02-12T07:30Z	0.366	false
2019-02-12T07:15Z	0.367	false
2019-02-12T07:00Z	0.362	false
2019-02-12T06:45Z	0.364	false
2019-02-12T06:30Z	0.366	false
2019-02-12T06:15Z	0.371	false
2019-02-12T06:00Z	0.37	false
2019-02-12T05:45Z	0.371	false
2019-02-12T05:30Z	0.366	false
2019-02-12T05:15Z	0.366	false
2019-02-12T05:00Z	0.366	false
2019-02-12T04:45Z	0.372	false
2019-02-12T04:30Z	0.367	false

Forecast data

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 levels measured?

We use measuring stations like this one to collect water level data, usually once or twice a day. We collect data more frequently when there's a greater risk of flooding. That's why the graph might show a short time lag since the last measurement.

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.

• View nearby measuring stations

• View the flood information service for England
• View your property's long term risk of flooding

Share this page

• Twitter
• Facebook
• Email