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SuDS in London - a guide

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5.1 Priory Common ra<strong>in</strong> meadow<br />

Location<br />

Priory Common<br />

<strong>London</strong> Borough of Har<strong>in</strong>gey<br />

Extent<br />

85m²<br />

Cost<br />

£48,000 (construction only)<br />

Date<br />

2016<br />

Credits<br />

<strong>London</strong> Borough of Har<strong>in</strong>gey<br />

Thames21<br />

Robert Bray Associates<br />

<strong>SuDS</strong> components<br />

Filter strip<br />

Infiltration bas<strong>in</strong><br />

Channels<br />

Love the Lea campaign, Thames 21<br />

Summary<br />

Green space enhancement and<br />

re-purpos<strong>in</strong>g for surface water<br />

<strong>in</strong>terception and <strong>in</strong>filtration.<br />

Project description<br />

Next to Priory Road is a l<strong>in</strong>ear green space<br />

with mature plane trees planted along<br />

the roadside. The verge is about 75m long<br />

and was highlighted as a site to deal with<br />

surface runoff from the road, via a sewer<br />

connection directly to the River Moselle.<br />

This project is part of a suite of <strong>SuDS</strong><br />

schemes locally that will cumulatively<br />

improve water quality.<br />

Objectives<br />

• Intercept road runoff pollutants<br />

at source and use the exist<strong>in</strong>g<br />

landscape to allow ‘<strong>in</strong>terception<br />

loss’ (ie, prevent water from reach<strong>in</strong>g<br />

the ground) for everyday ra<strong>in</strong>fall<br />

• Clean and cool runoff dur<strong>in</strong>g<br />

summer when the watercourse is<br />

most susceptible to the effects of<br />

pollution and water temperature<br />

<strong>in</strong>creases (which <strong>in</strong>hibit the ability of<br />

water to carry dissolved oxygen)<br />

Priory Common after <strong>in</strong>stallation<br />

77 5 Case studies

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