← Back
0.09

Gadebridge Park

Gade
Colne (Upper) catchment • Hemel Hempstead • Hertfordshire • ID: 2840TH • Level
(33m ago) • 4 readings/hr • 181 views

Set water level alerts

Get notified about Gadebridge Park — tick as many as you like, they all share the notify settings below.

⤴ Unusual rise — FloodRadar+Top 1% rise rate for this gauge.
Drag the line on the chart, or type a value: mASD
Quick pick:

Each one is saved as its own alert — pause or remove them individually any time.

Not an emergency service — if in danger call 999. Alerts rely on EA/SEPA/NRW data and are best-efforts. Terms

Current Level
0.094 mASD
▬ Steady
24h Max
0.098 mASD
24h Min
0.093 mASD
Typical Range
0.16 - 0.65
mASD
Highest Recorded
0.67 mASD
23 Apr 2025
Since Apr 2025
Current level is 14% of this
Current Flow
Loading...
🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Recent Readings

Steady over 5h
09 Oct 22:30 ▼ -0.1 cm 0.094 mASD
09 Oct 22:15 ▬ steady 0.095 mASD
09 Oct 22:00 ▬ steady 0.095 mASD
09 Oct 21:45 ▬ steady 0.095 mASD
09 Oct 21:30 ▲ +0.1 cm 0.095 mASD
09 Oct 21:15 ▼ -0.1 cm 0.094 mASD
09 Oct 21:00 ▲ +0.1 cm 0.095 mASD
09 Oct 20:45 ▬ steady 0.094 mASD
09 Oct 20:30 ▼ -0.1 cm 0.094 mASD
09 Oct 20:15 ▲ +0.1 cm 0.095 mASD
09 Oct 20:00 ▬ steady 0.094 mASD
09 Oct 19:45 ▬ steady 0.094 mASD
09 Oct 19:30 ▼ -0.1 cm 0.094 mASD
09 Oct 19:15 ▲ +0.2 cm 0.095 mASD
09 Oct 19:00 ▼ -0.1 cm 0.093 mASD
09 Oct 18:45 ▼ -0.1 cm 0.094 mASD
09 Oct 18:30 ▬ steady 0.095 mASD
09 Oct 18:15 ▲ +0.1 cm 0.095 mASD
09 Oct 18:00 ▼ -0.1 cm 0.094 mASD
09 Oct 17:45 0.095 mASD

Station Details

  • Monitoring Station: Gadebridge Park
  • Watercourse: River Gade
  • Nearest Town: Hemel Hempstead
  • County: Hertfordshire
  • Coordinates: 51°45'28"N 0°28'30"W (51.757886, -0.475121)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 16 Apr 2025
  • Status: Active
  • Station Type: River level station
Technical details: references, datum, range, flow archive
  • Station Reference: 2840TH
  • RLOI id: 9662 (the EA's check-for-flooding station id)
  • EA Gauge ID: 2840TH-level-stage-i-15_min-mASD
  • Parameter: Level
  • Unit: mASD
  • Typical rise rate: 1 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~22 min (measured reading→publication lag)
  • Tidal: No
  • Lock / structure: No
  • Catchment Area: Colne (Upper)
  • Typical Range: 0.164 – 0.650 mASD
  • EA Cross-check: 0.10 mASD (EA at 9 Oct 22:15)

Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.

Nearby Stations

Gauges connected to this river, and others nearby. A distance “by river” follows the river on the map; any other is in a straight line.

Same river system, separate branch

Nearby

💧 Storm overflows upstream of this gauge

None of the storm overflows FloodRadar holds is traced upstream of this gauge on the mapped river network. 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. Those nearby are listed below.

Nearby, connection not known

Within 6 km in a straight line, but the river map cannot say whether their water passes this gauge.

💧
Thames Water · into The Grand Union Canal · 4.1 km away in a straight line · its recorded watercourse is not the one mapped beside it
35 spills · 210 hours in 2025
Not discharging now · last

These are the water companies' monitor statuses; a spill does not by itself explain a change in the gauge level. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels. Explore the sewage map →

Contains OS data © Crown copyright and database rights 2026.

Rainfall & Weather

Loading rainfall and weather data...

How often this river runs high

Days this gauge reached its typical high of 0.65 m, year by year. This year so far: 0 days.

2026 0 days so far
2025 1 day patchy data

Counted from each day's highest reading. Days with missing or implausible readings are left out, so a year marked patchy may have run high more often than shown.

Flood history near this gauge

Official Environment Agency warnings issued since 2014 for the 10 flood areas linked to this gauge (nearest 0.9 km away).

2flood warnings 16flood alerts

Most recent flood warning: 14 Jan 2021 — River Gade at Frogmore End

Year by year
YearWarningsAlerts
2024 0 8
2021 1 6
2020 0 1
2016 0 1
2014 1 0

Warnings apply to a whole flood area, not necessarily this exact spot. Years before 2006 aren't covered by the EA's historic record. See also the Hemel Hempstead flood history.

Flood areas linked to this gauge

Flood warnings and alerts are issued for whole areas. These are the 10 areas linked to this gauge, nearest first.

Show 2 more

Frequently asked questions

Is the River Gade at Gadebridge Park flooding today?

The current level is 0.09m, which is below the typical range. Flooding is very unlikely at this level.

Is the river level rising or falling at Gadebridge Park?

Based on the most recent readings, the level is currently steady. The chart above shows the last 12 hours of measurements by default (up to 7 days), updated roughly every 15 minutes.

What is a normal level for the River Gade at Gadebridge Park?

The typical range at this station is 0.16m to 0.65m, based on Environment Agency historical data. Levels above 0.65m are higher than usually seen and may indicate a flood risk.

How often is this river level data updated?

Readings are supplied by the Environment Agency gauge. FloodRadar checks for updates roughly every 15 minutes; the timestamp above shows how recent the latest available reading is.

Embed this gauge on your website

Free live river-level widget — ideal for parish councils, angling clubs and local sites. Updates automatically.

Preview

📮 Flood risk by postcode near this gauge

Postcodes within 5 km with properties in the Environment Agency’s rivers-and-sea flood-risk bands:

Check any UK postcode’s flood risk →

🏠 Buying or renting around here? Get the Property Flood-Risk Report for any English postcode — official risk band, recorded floods, warning history, river behaviour and nearby storm overflows. £19 one-off. Learn more →