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Do we need to bring back the NRA
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<blockquote data-quote="Hindsight" data-source="post: 6634206" data-attributes="member: 3169"><p>I have no real knowledge of engineering and hydrological aspects of drainage. So defer to others. </p><p></p><p>But for my 'pennorth' worth, I concurr with your comment about the discharge points - such as the Grand Sluice in Boston, and would hope that small cross sectional area is not constrained as a bottleneck. As for the rest of the arterial drainage system again provided Grand Sluice and the other River/Drain points which discharge to sea are functioning effectively not sure increasing river capacity make that much difference. </p><p></p><p>In an idle moment last Sunday I did the following calculation. At that stage 200mm rain had fallen across Lincolnshire which is 7000 square kms, so 1.2 billion cubic metres water, since September 22. Some would percolate into chalk / limestone areas but most has fallen onto saturated soil and thus will eventually drain off. </p><p></p><p>And of course since last weekend possibly upto another 400 million cubic metres has fallen. An interesting question I may pose to the IDB drainage engineers is the combined sea interface outfall capacity in cubic metres per second for Lincolnshire. Pedants question afraid. </p><p></p><p>But it is proper wet now. Regards.</p></blockquote><p></p>
[QUOTE="Hindsight, post: 6634206, member: 3169"] I have no real knowledge of engineering and hydrological aspects of drainage. So defer to others. But for my 'pennorth' worth, I concurr with your comment about the discharge points - such as the Grand Sluice in Boston, and would hope that small cross sectional area is not constrained as a bottleneck. As for the rest of the arterial drainage system again provided Grand Sluice and the other River/Drain points which discharge to sea are functioning effectively not sure increasing river capacity make that much difference. In an idle moment last Sunday I did the following calculation. At that stage 200mm rain had fallen across Lincolnshire which is 7000 square kms, so 1.2 billion cubic metres water, since September 22. Some would percolate into chalk / limestone areas but most has fallen onto saturated soil and thus will eventually drain off. And of course since last weekend possibly upto another 400 million cubic metres has fallen. An interesting question I may pose to the IDB drainage engineers is the combined sea interface outfall capacity in cubic metres per second for Lincolnshire. Pedants question afraid. But it is proper wet now. Regards. [/QUOTE]
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