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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Floodplain compensation area – elevation distribution for <strong>the</strong> three sites are<br />
provided in <strong>the</strong> table below.<br />
Volume required (m 3 )<br />
Elevation<br />
(mAOD)<br />
A14<br />
embankment<br />
widening.<br />
River Avon<br />
Crossing 1<br />
North of A14<br />
River Avon<br />
Crossing 2<br />
(South East<br />
Quadrant)<br />
Total volume<br />
per slice<br />
95.500 - 95.600 0.60 0.00 10.28 10.87<br />
95.600 - 95.800 3.61 0.00 20.40 24.01<br />
95.800 - 96.000 26.50 0.00 14.84 41.33<br />
96.000 - 96.200 24.08 0.00 21.70 45.78<br />
96.200 - 96.400 32.26 0.00 21.33 53.60<br />
96.400 - 96.600 38.44 0.00 10.73 49.17<br />
96.600 - 96.800 30.96 0.00 0.00 30.96<br />
96.800 - 97.000 29.48 0.00 0.00 29.48<br />
97.000 - 97.200 37.14 18.50 0.00 55.64<br />
97.200 - 97.400 71.38 26.05 0.00 97.43<br />
97.400 - 97.600 110.72 25.10 0.00 135.82<br />
97.600 - 97.800 0.00 13.26 0.00 13.26<br />
97.800 - 98.000 0.00 0.00 0.00 0.00<br />
98.000 - 98.200 0.00 0.00 0.00 0.00<br />
95.500 - 95.600 0.60 0.00 10.28 10.87<br />
95.600 - 95.800 3.61 0.00 20.40 24.01<br />
95.800 - 96.000 26.50 0.00 14.84 41.33<br />
Total 405 83 99 587<br />
100 yr flood<br />
level (mAOD)<br />
97.6 98.2 96.6
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