Does Chippenham flood?

What the Environment Agency's rivers-and-sea flood-risk data says about Chippenham

Ordnance Survey places 56 postcodes in Chippenham in the Environment Agency's rivers-and-sea flood-risk dataset (Risk of Flooding from Rivers and Sea). Each postcode is counted once, under the worst band any of its properties reaches; together they hold 450 properties in the EA dataset's likelihood bands.

This dataset covers flooding from rivers and the sea only — one of five flood sources. Surface water, groundwater, sewers and reservoirs are assessed separately, so a postcode missing from it is not proof that a place cannot flood. The band describes the land around properties (allowing for defences), not any single address and not today's conditions.

Rivers and live river levels near Chippenham

Environment Agency gauges within 10 km of Chippenham watch River Marden, River Avon, South Brook, Clackers Brook.

• Stanley
  River Marden · 3.7 km away 0.38 mASD
  normal range · steady · 48 min ago
• Corsham
  River Avon · 5.8 km away 0.07 mASD
  below normal · steady · 33 min ago
• Melksham Shaw
  South Brook · 7.7 km away 0.07 mASD
  normal range · steady · 33 min ago
• Calne
  River Marden · 8.3 km away 0.14 mASD
  normal range · steady · 33 min ago
• Melksham Clackers
  Clackers Brook · 9.5 km away 0.02 mASD
  normal range · steady · 33 min ago

Distances are from the middle of Chippenham's at-risk postcodes. Tidal and structure gauges are shown as readings only — the tide and sluice gates move them, not floods. A gauge with no recent reading shows no level.

Flood warning areas near Chippenham

7 Environment Agency flood warning areas lie within 10 km of Chippenham. The EA has issued 273 flood warnings and alerts for them since 2006, most recently on 12 Mar 2026.

• Avon Reach, The Bridge, Foghamshire, Providence Terrace, Ivy Road, St Mary Street, Emery Gate, Borough Parade, Westmead Lane, Monkton Park, St Mellion Close, Riverside Drive, Lytham Close, Gleneagles Close, Eastern Avenue and Wentworth Close
  1 warning or alert since 2006, latest Nov 2024 0.6 km
• Sea and Air Cadet Headquarters, High Street, Borough Parade, River Parade, The Bridge, Rowden Hill and Bath Road
  3 warnings and alerts since 2006, latest Nov 2025 1.0 km
• Bristol Avon and tributaries from downstream of Chippenham to Melksham including Reybridge, Lacock and Bewley Court
  38 warnings and alerts since 2006, latest Dec 2025 4.4 km
• Bristol Avon and tributaries from downstream of Malmesbury to Chippenham including Cow Bridge, Hullavington, Corston, Rodbourne, Kingsmead Mill, Great Somerford, Lower Seagry, Christian Malford, Sutton Benger, Kellaways, East Tytherton and Stanley
  25 warnings and alerts since 2006, latest Feb 2026 8.3 km
• Bristol Avon including New Broughton Road, Old Broughton Road and Bradford Road. Clackers Brook including Lowbourne, Webbs Close and Bath Road and the South Brook including Northbrook Road, Southbrook Road and Roundpond
  1 warning or alert since 2006, latest Nov 2024 8.5 km
• The Street and Water Lane in Castle Combe
  2 warnings and alerts since 2006, latest Nov 2025 8.7 km
• Upper River Avon and tributaries including Malmesbury, Dauntsey, Chippenham and Calne
  203 warnings and alerts since 2006, latest Mar 2026 9.5 km

Recorded floods near Chippenham

Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of Chippenham, most recent first. Absence of a record does not mean a place has never flooded. See them on the map →

• 9 Jan 2014 — Flood extent_Winter 2013 to 2014 Main river
• 2 Jan 2014 — This represents flooding in the area in 2014
• 1 Jan 2014 — This represents flooding in the area in 2014
• 21 Nov 2012 — Lacock_Nov 2012 Ordinary watercourse
• 21 Nov 2012 — Kellaways_Nov 2012 Main river
• 21 Nov 2012 — Chippenham_Nov 2012 Main river
• 29 Apr 2012 — EA112_Avon_April_Flood Event Main river
• 10 Feb 2009 — North Wessex Feb 2009 Main river
• 1 Feb 2001 — This represents flooding in the area in 2001 Main river
• 30 Oct 2000 — This represents flooding in the area in 2000 Main river
• 30 Oct 1999 — This represents flooding in the area in 1999 Main river
• 19 Jan 1999 — This represents flooding in the area in 1999 Drainage

…and 48 earlier recorded floods on the map.

Rainfall near Chippenham

The nearest rain gauge, Rainfall station (2.1 km away), recorded 0.0 mm in the last 24 hours and 13.4 mm in the last 7 days (latest reading 33 min ago).

At-risk postcodes in Chippenham

Every postcode Ordnance Survey places in Chippenham that appears in the EA's rivers-and-sea dataset, worst band first. Each links to its own flood-risk page.

High likelihood (11)

Medium likelihood (11)

Low likelihood (34)

Postcode districts

Sources

FloodRadar summarises public flood data. It is not a flood-risk survey of any property, and it does not replace official GOV.UK flood warnings or the GOV.UK long-term flood risk service.