| 20.0 | Major flooding will occur. The Carlsbad Loop will be flooded and impassible. A few structures along the river will begin to flood. | | 15.0 | Moderate flooding will occur in carlsbad. The city park near the river will begin to flood. | | 12.0 | Minor lowland flooding will occur to ranch land. Secondary roads and low water crossings will be flooded. |
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1) 29.10 ft on 09/26/1936
2) 25.85 ft on 10/13/1957
3) 22.00 ft on 09/20/1974
4) 20.82 ft on 09/18/1974
5) 19.44 ft on 08/27/1986
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Low water records are unavailable.
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