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The Columbia River Basalt Group (including the Steen and Picture Gorge basalts) extends over portions of four states. The Columbia River Basalt Group (CRBG) is the youngest, smallest and one of the best-preserved continental flood basalt provinces on Earth, covering over 210,000 km 2 (81,000 sq mi) mainly eastern Oregon and Washington, western Idaho, and part of northern Nevada.
The McKenzie River is a 90-mile (145 km) tributary of the Willamette River in western Oregon in the United States. It drains part of the Cascade Range east of Eugene and flows westward into the southernmost end of the Willamette Valley. It is named for Donald McKenzie, a Scottish Canadian fur trader who explored parts of the Pacific Northwest ...
The river experienced widespread flooding throughout its 90-mile course between Lake Tahoe and Pyramid Lake. The river level rose 7 feet, eventually receding from flood stage on January 3. The Truckee River had an early warning system – consisting of gauges – that performed inadequately in predicting the flood severity.
The Columbia Slough is a narrow waterway, about 19 miles (31 km) long, in the floodplain of the Columbia River in the U.S. state of Oregon. From its source in the Portland suburb of Fairview, the Columbia Slough meanders west through Gresham and Portland to the Willamette River, about 1 mile (1.6 km) from the Willamette's confluence with the ...
The dam, owned by West Penn Power, reached the highest levels in its 60-year history, prompting the company to open flood gates, which flooded Point Marion with 8 ft (2.4 m) of water. The Monongahela River crested at 42.7 ft (13.0 m), or 10.7 ft (3.3 m) above flood state in Brownsville , and rose 18 ft (5.5 m) above flood stage in Greensboro . [7]
The 1973 flood was the first time the Morganza Spillway was opened: from April 19 through June 13. At Memphis, Tennessee, the Mississippi was over flood stage for 63 days, more than that of the historic 1927 flood, and the river was above flood stage for an even longer 107 days at upstream Cairo, Illinois.
The Red River drainage basin, with the Souris River highlighted Flooding in Minot on June 23. The 2011 Souris/Mouse River flood in Canada and the United States occurred in June and was greater than a hundred-year flooding event for the river. The US Army Corps of Engineers estimated the flood to have a recurrence interval of two to five centuries.
River levels: Crest 31.12 feet June 13, 2008 at 10:15 am (flood stage 12 feet), One month after crest: 8.66 feet, Two months after crest: 4.43 feet, Previous record crests: 20 feet in 1929 and 1951, 19.27 feet in 1993; Cultural losses. The Paramount Theatre, one of the city's premier cultural venues, was flooded up to the first floor.