Chapter 9: Road drainage and the water environment
Chapter 9: Road drainage and the water environment
Chapter 9: Road drainage and the water environment
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M1 JUNCTION 19 IMPROVEMENT<br />
ENVIRONMENTAL STATEMENT VOLUME 2<br />
CHAPTER 9 – ROAD DRAINAGE AND THE WATER ENVIRONMENT<br />
Feature &<br />
Attribute / Service<br />
Flood Risk<br />
Floodplain:<br />
Conveyance of flood<br />
flows<br />
Quality<br />
Indicator<br />
Scale A , Details <strong>and</strong><br />
Grading<br />
Local: Minor alluvial & river<br />
terrace gravel deposits<br />
aquifer with low leaching<br />
soils<br />
Local: Non aquifer Lower<br />
Lias Group strata & Glacial<br />
Till<br />
Surface <strong>water</strong>s Regional / Local: Proposed<br />
Development within River<br />
Avon <strong>and</strong> Clay Coton<br />
Yelvertoft Brook 1:100 year<br />
indicative floodplain<br />
Ground<strong>water</strong> Local: Alluvial <strong>and</strong> river<br />
terrace gravel deposits<br />
with <strong>water</strong> table in places<br />
below 1m<br />
Local: Clay soils<br />
Importance<br />
Low<br />
Low<br />
Medium<br />
Medium<br />
Low<br />
A<br />
The majority of features are deemed to be of ‘local’ scale. Regional / national status has been<br />
afforded to important main rivers, public <strong>water</strong> supplies, major aquifers etc.<br />
B Conservation value is not included; this is covered within <strong>Chapter</strong> 3 Ecology <strong>and</strong> Nature<br />
Conservation<br />
B0531000_ID_70-EIA Vol 2 Chap 9 <strong>Road</strong> Drainage <strong>and</strong> <strong>the</strong> Water Environment Final Rev 4.doc Page 20