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标题: goes underwater 817 [打印本页] 作者: bpbnrwcum 时间: 2016-10-14 21:47 标题: goes underwater 817 Corps of Engineers managing dams to keep river close to its banksOwing to melting snowfall and exceptionally rainy climatic conditions this spring, the Columbia River water level has increased, causing minor flooding in numerous areas in Multnomah and Clark counties.
The National Weather Service revealed Tuesday afternoon, May 28, that the river was at 17.2 feet at Vancouver, more than 1 foot on top of the 16 foot flood phase, which is when the water floor level begins to create a peril to lives, property or even commerce.
The weather service needs river levels to remain between 17.1 and Teen.5 feet, just below Eighteen feet, when moderate inundating of lowland farmland and property would likely begin. Army Corps associated with Engineers, said melting snow from the Cascades and the Bumpy Mountains, along with a heavy number of rain, has led to a rise water flowing into the Mexico River Basin. As a result, the military Corps of Engineers' Reservoir Management Center, which directs flood control operations in the container, is working with river agencies to coordinate water flow over the river and dams, such as Bonneville Dam in Cascade Locks, he was quoted saying.
Clemans said Bonneville Dam is currently releasing 504,A thousand cubic feet of water a second. Bonneville's move conditions for May have averaged all around 297,000 cubic feet of water a 2nd over the past 30 years, according to the Northwest River Forecast Center.
'We're attempting to keep the river level as complete as it can be without seeing major flooding,' Clemans said, putting that the dams with safe-keeping reservoirs such as John Day and Grand Coulee have been liberating excess water in preparation for further snowmelt from the mountains.
The high water levels in the river could possibly continue for a number of weeks, he said.
'We are not predicting a significant decline in Columbia River waters for many years,' bin ich stolz darauf 81 Clemans said.
So far, a few flooding has been reported in Sauvie Island and along the finance institutions of the Columbia River that happen to be used for camping and recreation, including Government Island as well as Cottonwood Beach near Washougal, Wash.
Any Multnomah County sheriff's deputy and members of the particular Corbett fire department Saturday, May well 28, rescued a 31st year old Portland man soon after he had become stranded on high ground in Million Acre Park near Troutdale while searching for their missing dog.
Chinook Landing Boat Park in Fairview was finished Tuesday morning, May Thirty one, because of high river quantities and flooding in the parking zone and picnic areas, stated Dan Kromer, parks and visitor services manager for Neighborhood Regional Government. The M. James Gleason Memorial Boat Incline in Northeast Portland continues to be open because it's high enough on top of the river, he said.
Some marina 3 rebounds på bare 24 98 parks along the river throughout East County reported suffering from the rising water levels.
Port Whitmore, owner of Big Eddy Marina with Gresham, said the marina's boat ramp was below water as well as lower parking lot was crammed kunne de bli verre 28 by up to 2 toes at the deepest spot.
'The biggest matter for us is if the access ramp (to the marina) is going underwater,' he said, observing that the water would have to increase about 1.5 legs more.
Portland Parks as well as Recreation on Tuesday closed this gangway and floating dock under the Burnside Bridge to bicyclists, individuals and boaters ogni anno Che si tratti i colori o lo stile on the Vera Katz Eastbank Esplanade because of rising water, the first time in the dock's history that soaring water has forced this sort of closure.
The closure will be estimated to remain in effect approximately a week, or possibly longer approaching conditions and further evaluation.
Over the past major flood in Feb . 1996, the Columbia Stream reached more than 27 ft . at Vancouver harbor, pertaining to 11 feet over ton stage. During the Vanport flood which in turn happened May 30, 1948 your Columbia River rose to about 23 feet, 8 ft above flood stage.