Dawlish Water

Dawlish Water is a minor coastal stream which flows through Devon, England.[1]

Dawlish Water
Dawlish Water in Dawlish
Location
Country	England
Counties	Devon
Physical characteristics
Source
• location	Zigzag Wood, Ashcombe
• coordinates	50°37′4.6″N 3°32′26.4″W
• elevation	200m Above Sea Level
Mouth
• location	Dawlish
• coordinates	50.5801°N 3.465°W / 50.5801; -3.465
• elevation	0m Above Sea Level
Length	9.3km
Basin size	22.5km²
Width
• minimum	0.02m
• maximum	13.7m
Depth
• minimum	0m
• maximum	0.5m
Basin features
Tributaries
• left	Brown’s Brook
• right	Mamhead Stream

Dawlish Water, also known as “The Brook”, rises on the eastern slopes of Haldon Forest in the Haldon Hills by the A380 road and the B3192, (largely heathland and conifer forest), in the Mamhead Obelisk plantation and then flows southeast through Ashcombe, Dawlish Water (Hamlet) and on to Dawlish town, flowing over a series of weirs, then through the centre of the town, under the A379 road and the London-Penzance railway line, by Dawlish railway station, before terminating in the English Channel. The urban part of Dawlish Water is prone to flooding in certain situations, particularly with winds between south and east, when moisture-laden air is forced up the slopes of Haldon Hill, where it then condenses and precipitates. It is a relatively quick-response watercourse, so is susceptible to intense rainstorms, however river levels tend to fall fairly swiftly afterwards.[2]

Dawlish Water has 15 minor tributaries, coming off Luscombe Hill and the hill by the Langdon Plantation. The only major tributary is Brown’s Brook, which is approximately 3km long and comes from Lidwell Chapel, in turn located on Little Haldon.

Water quality is sometimes affected after heavy rainfall due to upstream farm effluent, and combined sewer outfalls in the river as it passes through the town. This in turn can affect the bathing water quality on the beach immediately next to the river, after heavy rain. Several initiatives have improved the situation recently, with the EA liaising with local farmers and water companies to improve water quality.

The water level of the stream has been measured in Dawlish since 2012, normal levels are between 0.12 metres (4.7 in) and 0.33 metres (1 ft 1 in). The maximum recorded level was 1.32 metres (4 ft 4 in) in November 2012.[3]

The mouth of the river was redesigned in the 2019-onwards works on the Dawlish Sea Wall. It has now been surrounded by a 2m high concrete wall, designed to concentrate the flow of the river at the discharge point to reduce erosion of the surrounding rock and structures, such as the stone groyne, in place to stop Longshore drift at the site.