River Levels
River Levels

Boston Grand Sluice Automation Monitoring Station

Latest Tidal Level


At 11:30pm, Tuesday 23rd July BST
(10:30pm, Tuesday 23rd July GMT)

Within the usual range for this location

Falling, -2.060 from previous measurement at 9:30pm, Tuesday 23rd July BST

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.

Flood Warning Areas Covering Here

Wider waterside properties between Grand Sluice and the Docks in Boston

No current or recent warnings.

Tidal flooding of areas near the Wash Frontage in Lincolnshire

No current or recent warnings.

Lower River Witham

No current or recent warnings.

Other Nearby Flood Warning Areas

Waterside properties between Town Bridge and Haven Bridge in Boston

No current or recent warnings.

Tidal flooding in the north of Boston and surrounding areas

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: Boston Grand Sluice Automation
  • Watercourse:
  • Nearest Town/Village:
  • Local Authority: Boston
  • Ceremonial County: Lincolnshire
  • Coordinates: 52°58'52"N 0°1'47"W (52.981286,-0.029852)
  • OS Grid: TF3236844477 (532368,344477)
  • Mapcode (Local): GBR JWG.585
  • Mapcode (Global): WHHLQ.JB0B
  • Open Location Code: 9C4XXXJC+G3
  • Maidenhead Locator System: IO92xx65
  • Environment Agency Location ID: E1460
  • Environment Agency Gauge ID: E1460-level-tidal_level-i-15_min-mAOD
  • Operational Area: Lower Witham
  • Catchment Area: Witham
  • UK Hydrometric Area: Witham and Steeping
  • Environment Agency Region: Anglian
  • 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 Boston Grand Sluice Automation Monitoring Station is between -1.48m and 4.27m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the Boston Grand Sluice Automation Monitoring Station over the past 12 months has been between -1.62m and 4.85m. It has been between these levels for at least 150 days in the past year.

Nearby Monitoring Locations

There are no other monitored rivers nearby

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