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Groundwater flooding in Vernham Dean, Upton and the Bourne Valley

Communities at risk of groundwater flooding in Vernham Dean, Upton and the Bourne Valley in North Hampshire including Hurstbourne Tarrant and St Mary Bourne

Flood alert area Groundwater Hampshire Solent and South Downs

Map

Nearby Monitoring Stations

Hazelberry Plantation
Groundwater Level • 14.8 km (upstream)
Easing · normal — Easing — down from 104.86 at 00:01, now 104.83
104.83 m
35min ago
Everleigh
Groundwater Level • 18.5 km (upstream)
Steady · normal
120.48 m
37min ago
Northfield Farm
Groundwater Level • Lambourn (Great Shefford) • 23.0 km (downstream)
Steady · normal
106.56 m
12h ago
Chapel Wood
Groundwater Level • Winterbourne • 23.2 km (downstream)
Easing · normal — Easing — down from 104.14 at 03:00, now 104.10
104.10 m
9h ago
Queen Manor Farm
Groundwater Level • Boscombe Down • 24.7 km (downstream)
Steady · normal
65.83 m
2h ago
Water Acre
Groundwater Level • Aldbourne • 27.0 km (upstream)
Easing · normal — Easing — down from 126.32 at 04:00, now 126.27
126.27 m
7h ago
Clarendon
Groundwater Level • 29.4 km (downstream)
Steady · normal
55.84 m
22min ago
Longacre
Groundwater Level • Upper Lambourn • 29.7 km (downstream)
Easing · normal — Easing — down from 126.01 at 01:00, now 125.96
125.96 m
11h ago
St Mary Bourne in this area
Bourne Rivulet • St Mary Bourne • 5.2 km
Steady · normal
78.07 m
20min ago
Andover Town Mill
River Anton • Andover • 8.4 km
Steady · normal
56.58 m
22min ago

Flood Event History (50)

17 Mar 2026 at 4:18pm Flood Alert
Groundwater levels have been falling steadily. We do not expect further flooding and the flood alert has been removed.  Rivers and streams remain full due to high groundwater levels and will react rapidly to further rainfall. Sewerage system impacts will continue, but reduce, during March.  We will ...
10 Mar 2026 at 4:38pm Flood Alert
Groundwater levels in the Bourne Valley remain high. At the borehole in Vernham Dean, the level has fallen by 1.08m. At Upton, the level remains relatively steady. Flooding is expected to be affecting a small number of cellars in Upton. Septic tanks will also struggle to operate properly. Currently,...
3 Mar 2026 at 11:43am Flood Alert
Groundwater levels in the Bourne Valley are high. At the borehole in Vernham Dean, the level peaked on Wednesday 25/02/2026, and has since fallen by 29cm. In Upton, levels are high but steady. Flooding is expected to be affecting a small number of cellars in Upton. Septic tanks will also be strugg...
24 Feb 2026 at 4:41pm Flood Alert
High groundwater levels may lead to flooding.  Flooding is possible . Mostly light rain (19mm) has fallen in the last week.  At Vernham Dean, the groundwater level has started to stabilise. Flooding is affecting a small number of cellars in Upton. Septic tanks will also struggle to operate properly....
7 Feb 2026 at 10:16am Flood Alert
13 Mar 2025 at 4:15pm Flood Alert
6 Mar 2025 at 4:34pm Flood Alert
17 Apr 2024 at 9:04am Flood Alert
10 Apr 2024 at 11:29am Flood Alert
3 Apr 2024 at 10:45am Flood Alert
20 Mar 2024 at 2:17pm Flood Alert
13 Mar 2024 at 1:56pm Flood Alert
6 Mar 2024 at 11:28am Flood Alert
28 Feb 2024 at 12:48pm Flood Alert
21 Feb 2024 at 2:38pm Flood Alert
14 Feb 2024 at 5:25pm Flood Alert
7 Feb 2024 at 12:51pm Flood Alert
25 Jan 2024 at 1:05pm Flood Alert
18 Jan 2024 at 4:56pm Flood Alert
11 Jan 2024 at 4:32pm Flood Alert
8 Jan 2024 at 11:58am Flood Alert
3 Jan 2024 at 3:33pm Flood Alert
27 Dec 2023 at 10:23am Flood Alert
22 Dec 2023 at 11:44am Flood Alert
19 Dec 2023 at 4:20pm Flood Alert
8 Apr 2020 at 12:20pm Flood Alert
30 Mar 2020 at 10:41am Flood Alert
23 Mar 2020 at 11:03am Flood Alert
12 Mar 2020 at 11:09am Flood Alert
6 Mar 2020 at 12:34pm Flood Alert
4 Mar 2020 at 4:46pm Flood Alert
25 Feb 2020 at 11:48am Flood Alert
19 Feb 2020 at 12:35pm Flood Alert
14 Feb 2020 at 11:38am Flood Alert
7 Feb 2020 at 11:52am Flood Alert
31 Jan 2020 at 11:25am Flood Alert
24 Jan 2020 at 10:26am Flood Alert
22 Jan 2020 at 11:05am Flood Alert
5 Mar 2014 at 4:15pm Flood Alert
26 Feb 2014 at 3:32pm Flood Alert
11 Feb 2014 at 9:52pm Flood Alert
10 Feb 2014 at 5:05pm Flood Alert
5 Feb 2014 at 3:17pm Flood Alert
29 Jan 2014 at 3:07pm Flood Alert
22 Jan 2014 at 11:35am Flood Alert
15 Jan 2014 at 12:28pm Flood Alert
10 Jan 2014 at 12:16pm Flood Alert
13 Mar 2013 at 2:18pm Flood Alert
30 Jan 2013 at 6:49pm Flood Alert
31 Dec 2012 at 1:47pm Flood Alert

Related Flood Areas

Alresford
River Arle • Hampshire
Andover on the River Anton
River Test, River Anton • Hampshire
Anna Valley on the Pillhill Brook
River Test • Hampshire
Ashley and Milford on Sea, Danes Stream
Danes Stream • Hampshire
Bartley Water
Bartley Water • Hampshire
Barton on Sea, New Milton
Becton Bunny • Hampshire
Barton on Sea, New Milton on the Becton Bunny
Becton Bunny • Hampshire
Beaulieu
The Solent • Hampshire
Beaulieu estuary
The Solent • Hampshire
Beaulieu River
Beaulieu • Hampshire
Bishops Waltham on the River Hamble
River Hamble • Hampshire
Bridge Road, Emsworth
The West Brook • Hampshire

Official sources for this area

This area on the Environment Agency’s flood service →
Floodline quick dial: 216001 — call 0345 988 1188 and give that code for a recorded update on this area.
Area code: 065FAG002

Live warnings and area boundaries are the Environment Agency’s and the EA is the authority on them. Contains public sector information licensed under the Open Government Licence v3.0. This area in the EA’s own data.