Urban Drainage Case Study

Question 1

Where was it

Answer 1

Camborne Cambridge

Question 2

What were the aims of the scheme

Answer 2

Showcase practical and innovative sustainable water management techniques within new residential developments

Demonstrate the SuDS are a viable and attractive alternative to more traditional forms of drainage and to deliver practical solutions for new housing areas

Question 3

Who where the scheme stakeholders

Answer 3

European funded programme- FLOWS

Local residents

Cambridgeshire County Lound

Developers

Question 4

What are the SUD used here

Answer 4

Water butts

Permeable paving

Green roof

Swales

Detention basins

Retention ponds

Question 5

What does the concepts of management trains mean in context

Answer 5

Using simple natural and visible drainage components in series to improve the water quality

Also controls quantity of run off by reducing flow rates and volumes

Water management- considered from where it leaves sight. Mimics natural pattern of drainage prior to developments

Roof water that isn’t collected in water butts flows to grass Swales or under drained Swales where pollutants are filtered
Rain falling on paths- permeable pavement
Management train- water travels downstream thru Swales, detention basics and wetlands before reaches final retention

Question 6

To what extent has the scheme been successful

Answer 6

Large extent

Question 7

Environmental success

Answer 7

Concerns that water might be hazardous were unfounded

Improvement in enviro- biodiversity, ecology and QOL- better at Lamb Drove then typical residential area

Improved quality of water leaving sight then pipes

Question 8

Economic success

Answer 8

Cost effective- construction and maintenance- 10% less then conventional pipe drainage systems

Question 9

Social success

Answer 9

Enviro - better QOL

Sculptures Swales and detention basins resulted in attractiveness and social idler

Water not hazardous