| 20.0 | THIS IS A SIGNIFICANT AND SERIOUS FLOOD. IF YOU ARE IN A FLOOD PRONE LOCATION NEAR THE RIVER...ACT QUICKLY AND HEAD FOR HIGHER GROUND. IF YOU ARE ASKED TO EVACUATE...DO SO IMMEDIATELY. FLOODING AFFECTS PORTIONS OF MANCHESTER...BEDFORD...MERRIMACK AND LITCHFIELD. AREAS SIGNIFICANTLY IMPACTED INCLUDE RIVERDALE AVE AND STARK WAY IN MANCHESTER. | | 17.0 | THIS IS A SERIOUS FLOOD EVENT. IF YOU ARE IN A FLOOD PRONE AREA NEAR THE RIVER...BE PREPARED TO MOVE TO HIGHER GROUND AND EVACUATE IF ASKED TO DO SO. AREAS IMPACTED INCLUDE STARK WAY AND RIVERDALE AVE IN MANCHESTER. | | 15.0 | FLOODING IS EXPECTED IN LOW LYING AREAS OF GOFFSTOWN...MANCHESTER...MERRIMACK AND LITCHFIELD. SHOULD EVACUATIONS BECOME NECESSARY...ACT QUICKLY AND FOLLOW THE DIRECTIONS OF LOCAL EMERGENCY MANAGEMENT OFFICALS. FLOODING MAY FORCE THE CLOSURE OF SOME ROADWAYS WHICH RUN ALONG THE RIVER. KNOW ALTERNATE ROUTES SO YOU CAN AVOID THESE LOCATIONS. | | 11.0 | FLOODING IS EXPECTED IN LOWEST LYING AREAS ALONG THE RIVER AFFECTING GOFFSTOWN...MANCHESTER...MERRIMACK AND LITCHFIELD. |
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1) 35.19 ft on 03/20/1936
2) 25.87 ft on 09/23/1938
3) 19.87 ft on 05/15/2006
4) 17.42 ft on 04/06/1960
5) 16.79 ft on 04/17/2007
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1) 0.98 ft on 10/11/1964
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