| 20.0 | A 20 FOOT PROJECT LEVEE PROTECTS THE CITY. FLOODWALLS AND LEVEES ARE CONSTANTLY UPGRADED TO MAINTAIN THAT PROJECT HEIGHT. | | 17.0 | THE RIVER WILL RISE ON THE LEVEE MAKING NAVIGATION AND DOCKING DIFFICULT. THE CITY IS PROTECTED TO A PROJECT HEIGHT OF 20 FEET. BONNET CARRE SPILLWAY MIGHT BE OPENED WHEN THE PROJECTED FLOW EXCEEDS 1.25 MILLION CFS TO LIMIT FLOW PAST NEW ORLEANS AND TO PREVENT FURTHER RISES AT THE CARROLLTON GAUGE. |
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1) 21.27 ft on 04/25/1922
2) 21.02 ft on 05/11/1912
3) 21.00 ft on 04/25/1927
4) 20.50 ft on 05/18/1927
5) 20.05 ft on 03/03/1916
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1) 0.10 ft on 07/26/1988
2) 0.54 ft on 08/29/1987
3) 0.70 ft on 12/24/1989
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