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Hains Point in 1935. Hains Point is located at the southern tip of East Potomac Park between the main branch of the Potomac River and the Washington Channel in southwest Washington, D.C. [1] The land on which the park is located is sometimes described as a peninsula but is actually an island: the Washington Channel connects with the Tidal Basin north of the park and the Jefferson Memorial. [1]
A chart datum is the water level surface serving as origin of depths displayed on a nautical chart and for reporting and predicting tide heights. A chart datum is generally derived from some tidal phase, in which case it is also known as a tidal datum. [1] Common chart datums are lowest astronomical tide (LAT) [1] and mean lower low water (MLLW).
The term tidewater may be correctly applied to all portions of any area, including Virginia, where the water level is affected by the tides (more specifically, where the water level rises when the tide comes in). In the case of Virginia, the Tidewater region includes the land east of the Fall Line, the natural border with the Piedmont Region.
About 21 percent of the creek's watershed is in Washington. Total land usage in the watershed is 896 acres (3.63 km 2) of wetlands or water, 22,272 acres (90.13 km 2) of residential and commercial areas, 15,488 acres (62.68 km 2) of forest or grasslands, and 10,304 acres (41.70 km 2) of agricultural areas. The creek has a fairly steep gradient ...
The lowest average daily flow ever recorded at the same location was 601.0 cubic feet (17.02 m 3) /s in September 1966 [2] The highest crest of the Potomac ever registered at Little Falls was 28.10 ft, on March 19, 1936; [43] [28] however, the most damaging flood to affect Washington, DC and its metropolitan area was that of October 1942.
The Washington Channel is a channel parallel to the Potomac River in Washington, D.C. It is located between the Southwest Waterfront on the east side and East Potomac Park on the west side. The channel is two miles (3.2 km) long, receives outflow from the Tidal Basin at its north end, and empties into the Anacostia River at Hains Point at its ...
The water stops rising, reaching a local maximum called high tide. Sea level falls over several hours, revealing the intertidal zone; ebb tide. Oscillating currents produced by tides are known as tidal streams or tidal currents. The moment that the tidal current ceases is called slack water or slack tide. The tide then reverses direction and is ...
In Washington, D.C., sustained winds remained below tropical storm force, though gusts reached 71 miles per hour (114 km/h) as recorded by the National Academy of Science. [1] Hurricane-force winds existed several hundred feet in the air, with wind sensors on the top of tall buildings recording winds of 70 to 85 miles per hour (113 to 137 km/h).