River Levels Today
Latest USGS gauge height and discharge at eight representative major U.S. river stations, with provisional-data and flood-safety context.
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How deep is Lake Winnipesaukee?
Lake Winnipesaukee reaches 180 feet (55 meters) at its deepest known point. That is roughly the height of a 14-story building. Across the entire lake, however, the average depth is only 43 feet (13 meters). The wide gap between those numbers reveals broad shallows beside steep-sided basins. Reefs and channels add more abrupt changes to…
Flathead Lake reaches 370.7 feet deep
Flathead Lake’s depth helps govern how its water stores heat and mixes through the seasons. The lake reaches 370.7 feet (113 meters) at its deepest mapped point. Its mean depth is 164.7 feet (50.2 meters), which describes the average across the broad underwater basin. The precise figures come from the Flathead Lake Biological Station at…
Why Lake Keowee can be dangerous
Water that looks calm from a Lake Keowee cove can become deep within a few steps. A fall from a boat can add cold shock before a swimmer has recovered from the surprise. Near power facilities, changing flows create another hazard, while a summer storm can raise waves across open water. Each condition is manageable…