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Iver Flooding

Buckinghamshire • Live river level monitoring on River Colne
1 monitoring station
1 river
8 warning areas
🏠 Thinking of buying in Iver? Get the detailed Property Flood-Risk Report for any Iver postcode — official risk band, recorded floods since 1703, warning history, river behaviour and nearby storm overflows. £19 one-off, instant. Learn more →

Flood risk in Iver today: Normal

No official flood warning is active nearby and the closest river stations are within normal ranges.

Updated 2026-10-09 13:00:16 UTC · Official GOV.UK warnings · Flood preparation & help guide

About Iver
Iver
Civil parish in Buckinghamshire, England

Iver is a civil parish in Buckinghamshire, England. In addition to the central clustered village, the parish includes the residential neighbourhoods Iver Heath and Richings Park and the hamlets Shreding Green and Thorney. In 2011 it had a population of 11,119.

From Wikipedia, the free encyclopedia (CC BY-SA 4.0). Photo: Wikimedia Commons
Flood Contacts
Floodline 24hr
0345 988 1188
Emergency
999
The map of Iver’s gauges and flood maps loads as you reach it.
Recent Flood Events
18 Mar 2026 17:07 Flood Alert
River Thame, Horsenden Stream and Chalgrove Brook
18 Mar 2026 08:26 Flood Alert
River Thame, Horsenden Stream and Chalgrove Brook
17 Mar 2026 17:09 Flood Alert
River Thame, Horsenden Stream and Chalgrove Brook
17 Mar 2026 07:23 Flood Alert
River Thame, Horsenden Stream and Chalgrove Brook
16 Mar 2026 17:14 Flood Alert
River Thame, Horsenden Stream and Chalgrove Brook
16 Mar 2026 09:13 Flood Alert
River Thame, Horsenden Stream and Chalgrove Brook

Does it flood near Iver?

Towns and villages near Iver with a page of their own: the homes in a flood risk area there, the nearest river gauges, and recorded floods.

New Denham · Colnbrook · Hayes · Slough · Wraysbury · Eton Wick · Ashford · Chalfont St Peter

Place names: Contains OS data © Crown copyright and database rights 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0.

The watercourse nearest Iver

The nearest watercourse on the river map is Colne Brook, about 10 m from the middle of Iver's gauges. It flows into the River Thames about 12 km downstream.

A gauge downstream shows water that has already passed this point; one upstream sees it first. Distances along the river are from the point on Colne Brook nearest the middle of Iver's gauges. From Ordnance Survey’s river map (OS Open Rivers), which leaves out small streams, ditches and culverts, so a nearer one may exist. This describes where water goes on the map; it says nothing about flooding at any address. Contains OS data © Crown copyright and database rights 2026.

Useful Links
Flood Monitoring in Iver

Iver is monitored by 1 Environment Agency river level station on the River Colne, in Buckinghamshire. Water levels are updated every 15 minutes, providing real-time flood monitoring for the area.

Monitoring Stations

The River Colne is monitored by 1 station (Farlows Bridge). Each station records water levels continuously, with data synced to FloodRadar every 5 minutes.

Flood Warning Areas

There are 8 Environment Agency flood warning areas within 10km of Iver. When the EA issues a flood warning for any of these areas, it will appear on this page. These include: The Lower River Colne and Frays River at Uxbridge, West Drayton, Poyle and Stanwell Moor; The Colne Brook at Iver including Thorney; The River Pinn at Yiewsley including Cowley Peachey; The River Pinn at Uxbridge including Hillingdon.

Sewage Discharge Monitoring

There is 1 storm overflow within 5km of Iver. None of the 1 with a reporting monitor is currently discharging. Enable "Sewage" on the map above to see their locations.

It has its own page of live status and past discharges:

What To Do During A Flood

If flooding is forecast in Iver, call Floodline on 0345 988 1188 for the latest information. Move valuables upstairs, turn off gas and electricity if safe to do so, and avoid walking or driving through flood water. Sign up for flood warnings on any station page above to receive email alerts when water levels rise. For emergency numbers, a preparation checklist and insurance guidance, see our flood help & preparation guide.

How much rain falls on Iver

Iver gets about 661 mm of rain a year on average (wettest month November, 73 mm; driest March, 41 mm). That is 43% drier than the UK as a whole, which averages 1,163 mm a year. See the rain gauges →

A thirty-year average for the area, not a forecast and not a flood risk on its own. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 2.2 km away. Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.

Recorded floods near Iver

Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of the town centre — most recent first. These are records of mapped extents, not a full list of floods. See them on the map →

  • 2023-10-20 — ea06OctoberAutumn2023 (Main river)
  • 2021-01-30 — ea06JanuaryWinter2021 (Main river)
  • 2021-01-30 — ea06JanuaryWinter2021 (Main river)
  • 2021-01-30 — ea06JanuaryWinter2021
  • 2021-01-30 — ea06JanuaryWinter2021
  • 2021-01-30 — ea06JanuaryWinter2021
  • 2021-01-30 — ea06JanuaryWinter2021 (Main river)
  • 2021-01-30 — ea06JanuaryWinter2021
  • 2021-01-30 — ea06JanuaryWinter2021 (Main river)
  • 2021-01-30 — ea06JanuaryWinter2021
  • 2021-01-30 — ea06JanuaryWinter2021 (Main river)
  • 2021-01-30 — ea06JanuaryWinter2021 (Main river)

Records, not floods: no outline on the record is not evidence a place has not flooded.

Frequently asked questions

Is there flooding in Iver today?

Current verdict: Normal. No official flood warning is active nearby and the closest river stations are within normal ranges.

Which rivers affect Iver?

Iver has river level monitoring on River Colne — 1 monitoring station in total.

How do I check official flood warnings for Iver?

Use the GOV.UK Check for Flooding service (check-for-flooding.service.gov.uk) or call Floodline on 0345 988 1188 (24 hours). You can also set up free FloodRadar email or browser alerts from any station page above.

What should I do during a flood warning?

Follow official advice: move valuables and vehicles to safety, never walk or drive through flood water, turn off gas and electricity if safe, and check on vulnerable neighbours. See our flood preparation guide at floodradar.co.uk/flood-help.

Has Iver flooded before?

Yes — the Environment Agency's Recorded Flood Outlines dataset shows 11 recorded flood extents around the town centre since 1703, most recently in 2014. That is a count of mapped extents, not of separate floods. Records, not floods: no outline on the record is not evidence a place has not flooded. See the flood history link below.

🏠 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 →