| 24.1 | Water begnins to inundate Constitution Avenue near the Lincoln Memorial at the low spot on Henry Bacon Drive. | | 22.2 | Water begins to reach the Pentagon East parking area. | | 20.5 | Water begins to inundate the north end of the N-S runway at Reagan National Airport. | | 19.0 | Water begins to flood the south end of the N-S runway at Reagan National Airport. | | 17.0 | water approaches the SE end of the NW to SE runway at Reagan National Airport. | | 16.7 | water begins to inundate the Kennedy Center for Performing Arts at Rock Creek and Potomac Parkway. | | 16.0 | Water approaches low spots of the 14th Street Bridge approach on the DC side of the river. Water also reaches George Washington Memorial Parkway south of Reagan National Airport near Four Mile Run. | | 15.0 | Water inundates portions of Maine Avenue. | | 13.7 | Water approaches East Potomac Park at the railroad bridge. | | 13.0 | Wisconsin Avenue and K Street are flooded. | | 12.0 | the parking lot at the foot of Wisconsin Avenue in Georgetown floods. | | 11.0 | there are no longer tidal effects. The river will rise to crest then fall, not seeing the separate high and low tides again until the water drops below 11 feet. | | 10.5 | water approaches Independence Avenue at 17th Street and the George Washington Memorial Parkway at the railroad bridge north or Reagan National Airport. | | 10.0 | water approaches K Street in Georgetown near Washington Harbour. | | 7.0 | water begins to inundate Washington Harbor. | | 6.0 | water reaches bulkhead along Washington Harbor. |
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1) 17.72 ft on 10/17/1942
2) 17.30 ft on 03/19/1936
3) 15.45 ft on 06/24/1972
4) 14.40 ft on 11/26/1877
5) 14.30 ft on 04/28/1937
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Low water records are unavailable.
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