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Environment
Flood Areas
Long Chaulden, Hemel Hempstead, Hertfordshire
HP1 2NX Dacorum District (B)
Discover flood risk areas nearby
Discover flood-prone areas surrounding HP1 2NX and stay informed about potential risks with our interactive mapping tool.
Flood warnings in force
The following flood warnings are in force in and around the HP1 2NX postcode area.
Flood areas
The following potential flood areas are within the HP1 2NX postcode area.
| Distance | Flood area | Details |
|---|---|---|
9.1MILES | Radlett Brook at RadlettHerts and North LondonThe Radlett Brook at Radlett |
|
9.8MILES | Upper River Colne and Radlett BrookHerts and North LondonThe Upper River Colne and Radlett Brook at Colney Heath, London Colney, Borehamwood and Radlett |
|
15.2MILES | Silk Stream and the Deans, Edgware, Dollis, Mutton and Wealdstone BrooksHerts and North LondonThe Silk Stream and the Deans, Edgware, Dollis, Mutton and Wealdstone Brooks and their tributaries |
|
15.4MILES | River Lee at HertfordHerts and North LondonRiver Lee at Hertford including Lemsford, Hatfield, Ware and Stanstead Abbotts |
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16.7MILES | River Thames at CookhamThamesRiver Thames at Cookham including Cookham Lock, Cookham Village and East Cookham Rise |
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17.2MILES | River Thames from Hurley to CookhamThamesRiver Thames from Hurley to Cookham including Harleyford, Bisham, Marlow and Bourne End |
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17.3MILES | River Brent from Hendon to BrentfordHerts and North LondonThe River Brent from Hendon to Brentford including Brent Cross, Tokyngton, Alperton, Greenford and Hanwell |
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17.5MILES | Lower Lee tributariesHerts and North LondonThe Lower Lee tributaries, including the Nazeing Brook, Ching Brook, Cobbins Brook, Pymmes Brook, Rags Brook, Salmons Brook, Turkey Brook, Trinity Marsh Ditch and the Small River Lee |
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17.6MILES | River Brent in the London Borough of BrentHerts and North LondonThe River Brent in the London Borough of Brent including Tokyngton, Stonebridge and Alperton |
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20.7MILES | Trinity Marsh Ditch at Waltham CrossHerts and North LondonTrinity Marsh Ditch at Waltham Cross |
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21MILES | River Lee at Hertford and WareHerts and North LondonRiver Lee at Hertford and Ware including Stanstead Abbotts |
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21.3MILES | Salmons Brook at Grange Park and Lower EdmontonHerts and North LondonThe Salmons Brook at Grange Park and Lower Edmonton including World's End |
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22.5MILES | Groundwater flooding in the Henley and Assendon areaThamesCommunities at risk of groundwater flooding including Turville, Skirmett, Stonor, Middle and Lower Assendon and parts of Henley |
|
23.7MILES | River Ivel in Hertfordshire and Central BedfordshireEast AngliaRiver Ivel from Langford to Blunham, including the rivers Purwell, Hiz, Flit and Hit |
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25.2MILES | River Thames from Shepperton to MoleseyThamesRiver Thames from Shepperton to West and East Molesey including Hamm Court, Walton-on-Thames and Sunbury |
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25.2MILES | River Wandle at WandsworthKent S London and E SussexRiver Wandle at Wandsworth including King Georges Park and Earlsfield, London Boroughs of Wandsworth and Merton |
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26MILES | River Thames at Hamm CourtThamesRiver Thames at Hamm Court including Shepperton Lock, Hamhaugh Island, Hamm Court Estate and Dorney Grove |
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26MILES | River Thames at Thames Ditton IslandThamesRiver Thames at Thames Ditton Island including Boyle Farm Island |
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26MILES | River Thames at Thames Ditton IslandThamesRiver Thames at Thames Ditton Island including Boyle Farm Island |
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27.1MILES | River Graveney at Tooting and Colliers WoodKent S London and E SussexRiver Graveney at Tooting and Colliers Wood, London Boroughs of Wandsworth and Merton |
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28.3MILES | River Wandle at MordenKent S London and E SussexRiver Wandle at Morden, including Morden Hall Park, London Borough of Merton |
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28.3MILES | River Wandle area in the London Boroughs of Wandsworth, Merton, Lambeth, Croydon and SuttonKent S London and E SussexRiver Wandle area in the London Boroughs of Wandsworth, Merton, Lambeth, Croydon and Sutton. Including the Norbury Brook from Thornton Heath to Tooting |
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28.4MILES | Windle Brook and Hale, Mill and Addlestone BournesThamesWindle Brook and Hale, Mill and Addlestone Bournes including Bagshot, Windlesham, Lightwater, Chobham, West End, Emmetts Mill, Woodham and Addlestone |
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28.4MILES | Mill Bourne at Emmetts MillThamesMill Bourne at Emmetts Mill, Surrey |
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28.6MILES | Hale Bourne from the M3 to Clappers LaneThamesHale Bourne from the M3 junction 3 to Clappers Lane including Windlesham Arboretum, Halebourne Lane and Burnt Pollard Lane, Surrey |
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Links to relevant council web pages
1 Detailed flood information can be obtained by phoning Floodline, run by the Environment Agency, allowing you to either speak to an operator or listen to a pre-recorded message. Use the quick dial codes to bypass the operator and receive the latest information about a specific flood area.
Download the Environment Agency's Flood Advice PDF leaflet, which contains information and advice on planning for flooding, what to do during a flood, and recovering after a flood.
Data is provided under the Open Government Licence by the Environment Agency flood and river level data from the real-time data API (Beta)
