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There is a flood alert within 5 miles of this measuring station

River Thames level upstream at Marsh Lock

This measuring station takes 2 measurements. You're viewing the upstream level. View the downstream level.

Latest at 10:00am on 4 April

Height
0.31m
Trend
Falling
State
Normal

Normal range 0.11m to 0.40m

Height in metres over the last 5 days

Threshold: 0.4m Top of normal range0.22m 9:30am, 30 Mar0.19m 2:30am, 31 Mar0.20m 1:00pm, 31 Mar0.18m 1:15pm, 31 Mar0.20m 4:30pm, 31 Mar0.18m 10:15am, 1 Apr0.32m 5:45pm, 1 Apr0.32m 8:45am, 2 Apr0.36m 10:15am, 2 Apr0.36m 3:00pm, 2 Apr0.25m 7:30pm, 2 Apr0.34m 1:15pm, 3 Apr0.31m 9:00am, 4 Apr
Download data CSV (12KB)

How levels here could affect nearby areas

1.63m
Water reaches the highest level recorded at this measuring station (1 November 2001)
0.40m
Top of normal range. Low-lying land flooding possible above this level
0.31m
Latest level

Flooding might not happen again at the same historical levels. This may be because flood management schemes are now in place.

How we measure river, sea and groundwater levels

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