River Levels
River Levels

Thames Tideway at 4480 tH

Latest Tidal Level

1.296m

At 11:00am, Thursday 28th June GMT

Within the usual range for this location

Rising, 0.260 from previous measurement at 10:45am, Thursday 28th June GMT

Warning: This data is stale! For some reason, we have not been able to obtain updated levels for over 24 hours. The current displayed level is probably incorrect and you should not rely on it.


This is a tidal level, measured from mean sea level rather than from the river bed. It can, therefore, be negative, and does not give any indication of water depth. Tidal levels are not necessarily updated frequently, and may not reflect tidal movements throughout the day.

Nearby Flood Warning Areas

Tidal Thames from Dartford Creek to Erith High Street East

No current or recent warnings.

River Darent at Dartford Trade Park, Brooklands and Dartford to the Thames estuary

No current or recent warnings.

Tidal Thames from Erith High Street to Thamesmead

No current or recent warnings.

Tidal Thames from The Mardyke to Barking Creek

No current or recent warnings.

Tidal Thames riverside from Dartford Creek and The Mardyke to the Thames Barrier

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: 4480 tH
  • Watercourse: Thames Tideway
  • Nearest Town/Village: Erith
  • Local Authority: Bexley
  • Ceremonial County: Greater London
  • Coordinates: 51°28'54"N 0°11'12"E (51.481798,0.186705)
  • OS Grid: TQ5193878139 (551938,178139)
  • Mapcode (Local): GBR SR.9QX
  • Mapcode (Global): VHHNT.601W
  • Open Location Code: 9F32F5JP+PM
  • Maidenhead Locator System: JO01cl25
  • Environment Agency Location ID: 4480TH
  • Environment Agency Gauge ID: 4480TH-level-tidal_level-i-15_min-mAOD
  • Catchment Area: London
  • UK Hydrometric Area: Thames
  • Environment Agency Region: Southern
  • Level Datum: Above Ordnance Datum (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 Thames Tideway at 4480 tH is between -2.31m and 5.04m. It has been between these levels for 90% of the time since monitoring began.

The highest level ever recorded at the Thames Tideway at 4480 tH is 4.30m, reached on Saturday 1st January 2000 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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