River Levels
River Levels

River Thames at Mapledurham Lock

Current River Level

0.120m

At 4:30pm, Tuesday 5th November GMT

Within the usual range for this location

Steady, no change from previous measurement at 4:15pm, Tuesday 5th November GMT

View downstream gauge levels

Flood Warning Areas Covering Here

River Thames from Pangbourne to Purley

No current or recent warnings.

Other Nearby Flood Warning Areas

River Thames at Pangbourne and Whitchurch

No current or recent warnings.

Sulham Brook at Pangbourne

No current or recent warnings.

River Pang at Pangbourne

No current or recent warnings.

River Pang at Tidmarsh

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: Mapledurham Lock
  • Watercourse: Thames
  • Nearest Town/Village: Mapledurham
  • Local Authority: South Oxfordshire
  • Ceremonial County: Oxfordshire
  • Coordinates: 51°29'9"N 1°2'22"W (51.486033,-1.039654)
  • OS Grid: SU667767 (466778,176780)
  • Mapcode (Local): GBR Q32.MR
  • Mapcode (Global): VHCZ3.XXR5
  • Open Location Code: 9C3WFXP6+C4
  • Maidenhead Locator System: IO91ll56
  • Environment Agency Location ID: 2199TH
  • Environment Agency Gauge ID: 2199TH-level-stage-i-15_min-mASD
  • River Levels Online ID: 7109
  • Water Information System ID: 2199TH
  • Operational Area: South Chilterns
  • Catchment Area: Thames and South Chilterns
  • UK Hydrometric Area: Thames
  • Environment Agency Region: Thames
  • Datum Type: Above Stage Datum (ASD)
  • Stage Datum: 38.639m 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 Thames at Mapledurham Lock is between 0.02m and 0.30m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the River Thames at Mapledurham Lock over the past 12 months has been between -0.01m and 0.26m. It has been between these levels for at least 151 days in the past year.

The highest level ever recorded at the River Thames at Mapledurham Lock is 0.85m, reached on Sunday 7th January 2024 at 11:00am.

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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