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Fleet Brook water levels

Live levels from 1 monitoring station across Hampshire, updated every 15 minutes.

1stations
0above typical high

Gauges

Monitoring stations, source to mouth

StationTownLevel nowStatusTrend
Kings Road BridgeFleet68.92 mAOD 1h agoNormal—

Stations are listed from source to mouth as the water flows, traced on the river map (OS Open Rivers) and the Environment Agency’s own links between its gauges. A distance “by river” is along the river, and is shown only where the map traces the path.

Contains OS data © Crown copyright and database rights 2026.

Gauged tributaries

Streams and rivers with a gauge whose water joins Fleet Brook above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.

No gauged tributary joins Fleet Brook above Kings Road Bridge on the river map. Streams without a gauge are not counted here.

Where Fleet Brook goes

Below Kings Road Bridge, its water next reaches Bramshill, a gauge on River Hart, 11.1 km by river downstream.

Tributaries and where they join are traced on the river map (OS Open Rivers, edition 2026-04) and the Environment Agency’s links between its gauges. The map holds distances between gauges, not the junctions themselves, so a junction is placed between two gauges, and no further up than the tributary’s own lowest gauge. Contains OS data © Crown copyright and database rights 2026.

Streams without a gauge

Named streams on the river map that flow into Fleet Brook and have no gauge of their own. Each has a page with what is known about it: the next gauge downstream, and any storm overflows or water-sampling points placed on it.

Storm overflows upstream

None of the storm overflows FloodRadar holds is traced upstream of Kings Road Bridge on the river map. That is not the same as none: the map leaves out many small streams and culverts, so an overflow it cannot place may still drain here, and not every company publishes every overflow.

Near these gauges, connection not known

Within 3 km of one of Fleet Brook’s gauges in a straight line, but the river map cannot say whether their water reaches it.

  • Elvetham Close Not discharging
    Thames Water · into Basingstoke Canal · 1.4 km from Kings Road Bridge in a straight line · no mapped watercourse close enough to be sure · 2025: 7 spills, 9.5 h

2 other overflows within 3 km of these gauges are placed below Fleet Brook’s lowest gauge or on another river, so not listed.

A status is the water company’s own monitor: it says whether an overflow is discharging, never how much or why, and a spill does not by itself explain a change in a river level. A status older than two hours is shown as unknown. Annual figures are the official returns: 12/24-hour spills for England and Wales, overflow events for Scotland (Scottish Water counts differently, so the two cannot be compared). “No data” means the monitor produced no usable data that year, not zero. Overflows are placed on OS Open Rivers (edition 2026-04), which leaves out many small channels: an overflow the map cannot place may still drain here. Contains OS data © Crown copyright and database rights 2026. Sewage in Britain’s rivers →

Live status: © Thames Water storm overflow activity data, licensed under CC BY 4.0. Annual figures for England: Environment Agency Event Duration Monitoring return, © Environment Agency copyright and/or database right, Open Government Licence v3.0.

Water samples

Dated samples taken by the Environment Agency, not live readings. Results are published days to months after the sample is taken, and many points are sampled only a few times a year, or have not been sampled for years.

2 sampling points on the Fleet Brook and the streams that join it above Kings Road Bridge, and below it. 2 have a sample from the last 12 months; 2 have any sample banked. Listed from the source down, grouped by the next gauge each one's water reaches.

Below Kings Road Bridge 2 points
Sampling pointWatercourse (map)Below the gaugeLast sampleLatest results (river water)
Fleet Brook above Fleet sewage treatment worksFleet Brook3.5 km10 Jul 2026 · 3 months agoOxygen 47.4%Temp 20.3 °CpH 6.93Ammonia below 0.03 mg/l
Fleet Brook above River HartFleet Brook5.8 km7 Jul 2026 · 3 months agoOxygen 45.7%Temp 21 °CpH 7.17Ammonia 1.5 mg/l

Distances are along the river to the gauge named. England's samples only.

FloodRadar does not grade these results: there is no overall score, and official river classifications are a separate dataset. A sample taken downstream of an overflow does not by itself show where anything in it came from. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels.

Water samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.

Contains OS data © Crown copyright and database rights 2026.