Sentences with phrase «river levee»

A state - funded study of the Oregon Columbia River levee system highlights the growing need to strengthen local flood control systems.

«The Little River levee and Little River Drainage District Headwaters Diversion channel built in the 1910s successfully permitted the drainage of the 1.2 million acres Big Swamp in southeast Missouri.

I took her to the old Roman Catholic Cathedral on the Mississippi River levee, where we attended a Roman Catholic — Lutheran worship service commemorating the 450th anniversary of the Augsburg Confession.

The farm is located on a plot at the end of a cul - de-sac in the shadow of the Trinity River levee.

A controversial decision in 2011 to blow up Mississippi River levees reduced the risk of flooding in a city upstream, lowering the height of the rain - swollen river just before it reached its peak, according to a newly published computer modeling analysis led by UC Irvine scientists.

Most of the Middle Mississippi River levees are currently rated Unacceptable (like 44.5 % of rated levee miles nationwide); plus there are major geotechnical issue documented by our research — subsidence and compaction and un-permitted levee modifications using road gravel that is unsuited to flood control.

The national Sierra Club was one of several environmental groups who sued the Army Corps of Engineers to stop a 1996 plan to raise and fortify Mississippi River levees.

Not exact matches

The researchers found that the region would have flooded anyway if the river had been allowed to overtop the levee banks.

Sections are often set back from the river to form a wider channel, and flood valley basins are divided by multiple levees to prevent a single breach from flooding a large area.

«Whenever you have development, you are going to increase the runoff, increase how much the rivers and streams have to carry,» says civil engineer W. Gene Corley, a senior vice president at CTLGroup, an engineering firm that evaluates infrastructure, such as levees.

The main purpose of an artificial levee is to prevent flooding of the adjoining countryside; however, they also confine the flow of the river resulting in higher and faster water flow.

They also narrowed and straightened the river to allow barge navigation, and constructed hundreds of miles of levees along its banks.

«These river structures and levees have increased the stream velocity that keeps sediments suspended but also during flooding increase peak flows in downstream areas.

They've built levees that constrict the flow of rivers, forcing water to travel downstream faster.

«On the other hand, if the barriers are not far enough from the river, they may trap wildlife escaping from floods, and may even act as levees, which tend to increase downstream flooding.»

The levees disconnect the river and an estimated 210 million tons of sediment that would naturally flow down to the delta and build the wetlands and the seafloor.

Defenses such as levees, bunds, reservoirs, and weirs are used to prevent rivers from bursting their banks.

By the beginning of the first millennium A.D., the levee system had been extended much farther up river, lining the banks for several hundred miles, he estimated.

Widespread erosion in the river's upper regions caused it to carry incredibly heavy loads of sediment downstream where deposits gradually raised the river bed above levees and surrounding fields.

It also suggests that the Chinese government's long - running efforts to tame the Yellow River with levees, dikes and drainage ditches actually made periodic flooding much worse, setting the stage for a catastrophic flood circa A.D. 14 - 17, which likely killed millions and triggered the collapse of the Western Han Dynasty.

Kidder's research suggests the Chinese began building drainage / irrigation canals and bank / levee systems along the lower reaches of the Yellow River about 2,900 - 2,700 years ago.

Urban development, agriculture and levees have shrunk and diverted the «river of grass» (center), but scientists hope to restore a large swath of it (right).

The southeast corner of the state is represented only by two fingers of land — the areas along the Mississippi River and Bayou Lafourche that currently are protected by levees.

The 50 - year, $ 50 billion Master Plan for the Coast (in 2012 dollars) includes projects to build levees, pump sediment into sinking areas, and build massive diversions on the river to reconnect it with the dying delta.

Olson says the increase in Mississippi River peak flow placed additional river pressure on levees and led to increased flooding, especially during the floods of 1927, 1937, 2011, and 2015 - River peak flow placed additional river pressure on levees and led to increased flooding, especially during the floods of 1927, 1937, 2011, and 2015 - river pressure on levees and led to increased flooding, especially during the floods of 1927, 1937, 2011, and 2015 - 2016.

An intricate system of basins, channels, and levees called the Headwaters Diversion carries water from the eastern Missouri Ozark Plateau to the Mississippi River south of Cape Girardeau.

The tiny prefab shack 2014 cluttered with mounted fish, piles of antlers and a wolf pelt Keller bought in Alaska 2014 is wedged between a levee that holds back Missouri River floodwaters and a new oil well, topped by a blazing gas flare.

«Predicting the shape of river deltas: New method may help engineers determine coastal impact of dams and levees.»

Without question, those levees were a death sentence for the deltas because they blocked the flow of sediment from the rivers.

A three - mile - long levee had been built next to the river; a landfill partly in the river's floodway (as defined in 1995) had expanded; parts of the floodplain had been built up with construction fill; and development along three small tributaries of the Meramec had destroyed riparian borders, so that they became torrents after a rain but no longer flowed continuously.

As an alternative, the study shows that the lowering of human - made levees along the Lower Plaquemines river section to their natural state, to allow storm surge to partially pass across the Mississippi River, will decrease storm surge upriver toward New Orlriver section to their natural state, to allow storm surge to partially pass across the Mississippi River, will decrease storm surge upriver toward New OrlRiver, will decrease storm surge upriver toward New Orleans.

«By eliminating the 55 kilometers of human - made levees on the west bank of the river from Pointe a la Hache and Venice, the surges propagating in the river from Pointe a la Hache past New Orleans will be lowered by up to two meters,» Westerink said.

«This study clearly shows that the man - built west bank levees on the lower Mississippi River enhance the capture of storm surge by the river,» Westerink River enhance the capture of storm surge by the river,» Westerink river,» Westerink said.

In the Mississippi River system, however, a series of dams on various upstream tributaries have reduced sediment supply to the delta, while levees on the lower part of the river have artificially channelized the flow, forcing sediments to be deposited beyond the delta in the deeper Gulf of MeRiver system, however, a series of dams on various upstream tributaries have reduced sediment supply to the delta, while levees on the lower part of the river have artificially channelized the flow, forcing sediments to be deposited beyond the delta in the deeper Gulf of Meriver have artificially channelized the flow, forcing sediments to be deposited beyond the delta in the deeper Gulf of Mexico.

The researchers note that, historically, the design of Southeast Louisiana's hurricane flood risk reduction system has hinged on raising and adding levees in response to river or hurricane events that impact the region.

Westerink points out that, historically, sustained easterly winds from hurricanes have directed storm surge across Breton Sound into the Mississippi River and against its west bank levees.

Also known as the Levee - Top Trail — because it's literally on top of the city's levees — this 60 - mile system of multi-use, car - free trails runs along both banks of the Mississippi River in southern Louisiana.

The third collaboration between Morrison and acclaimed guitarist / composer Bill Frisell, the film chronicles the most destructive river flood in US history, which saw nearly 150 breaks in the Mississippi's levees, flooding of 27,000 square miles, the deaths of 250 people in seven states, and damages estimated at over $ 400 million.

Folwell, his wife Lucia, and their shaggy and occasionally obedient black dog live in an ancient and decrepit shotgun doublewide, two blocks from Desire (of Streetcar fame), a levee away from Old Man River, and a hop, a skip and a short stagger from the Vieux Carre».

A great mind map for revision or in class use on waterfalls, gorges, floodplains, levees, meanders and oxbow lakes and even a case study on the River Eden.

Climbing the levee by the river at the end of his last field, Bishop shows me the problem.

The main reason: Levees built to control Mississippi River flooding have deprived the wetlands of fresh sediments.

The levees are currently doing a good job holding back the flooding Missouri River, and hopefully today's rain won't affect their success!

Less common nesting habitat includes bluff - backed beaches, dredged material disposal sites, salt pond levees, dry salt ponds, and river bars (U.S. Fish and Wildlife Service 2001).

Because of fears that San Diego Bay might silt up, the river was diverted to its present course north of Point Loma by a levee built in 1877.

If you like a variety of cafe, bistro and bar settings to choose from, take a stroll along the Old Seaport wharf strip to the award - winning StillWater River Cafe, Restaurant & Wine Bar, as well as Hallam's Seafood Restaurant, La Cantina Restaurant, Salsa and Levee Food Co, and the Black Cow Bistro.

New Orleans, which will mark its 300th anniversary in 2018, has thrived from its location where the Mississippi River meets the Gulf of Mexico, but is also battered by hurricanes and floods and breaking levees.

Its location is the batture, the area between the river and the levee.

In Southeast Louisiana, many have struggled against the natural environment for a long time, building levees to protect us from the Mississippi River and the swamps, marshes, and estuaries that line the Gulf Coast.

Leading the sale is Levees and Dikes (Green River turn)(estimate: $ 350,000 - 450,000).