River Levels
River Levels

Groundwater flooding in Flamstead

Flood alert

Groundwater levels have responded to high Autumn and Winter rainfall and have risen to very high levels at our observation borehole at River Hill, close to Flamstead. Groundwater levels are unusually high for this time of year and have now reached a level where communities are at risk of being affected by flooding from groundwater. We expect levels to remain high over the coming weeks in response to the high winter rainfall. Low lying lands and roads such as those in the Trowley Bottom area near Flamstead are therefore at risk of flooding. Due to the nature of groundwater behaviour this situation could continue for several weeks or longer. We are continuing to monitor groundwater levels and will update this message on Wednesday 3 April 2024, or as the situation changes.

Information supplied by the Environment Agency

This information last updated 7:46pm, Wednesday 27th March.

Flood Warning Area Details

Areas at risk of groundwater flooding around Flamstead, including Trowley Bottom and Lower Sawpit Wood

Region: Herts and North London

Country: England

Counties covered: Hertfordshire

Watercourses covered: Groundwater

Area covered by this alert location

The area bounded in blue on the map shows the area covered by flood alerts and warnings for Groundwater flooding in Flamstead.

Note: the area shown on the map is the area covered by flood alerts and warnings. It is not a live map of current flooding. The area covered broadly equates to the area where the risk of flooding in any year is greater than 1% (the "hundred year" flood risk).

Other Nearby Flood Warning Locations

River Ver at Markyate
The River Ver at Markyate including Flamstead, Harpenden

No current or recent warnings.

River Ver at Redbourn
The River Ver at Redbourn including Redbournbury

No current or recent warnings.

River Gade at Hemel Hempstead
The River Gade at Hemel Hempstead

No current or recent warnings.

River Ver in Hertfordshire
The River Ver at Markyate, Redbourn and St. Albans

No current or recent warnings.

River Bulbourne at Boxmoor
The River Bulbourne at Boxmoor, Hemel Hempstead

No current or recent warnings.

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