Engineering
Top stories summarized by our editors
8/14/2018

Weather patterns are contributing to accelerated erosion in the Minnesota River Basin, leading to increased sediment loads downstream. A new study that outlines the use of an assessment tool to simulate discharge changes in Le Sueur watershed asserts that increasing water retention could solve the problem.

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MDPI (Switzerland)
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water retention, Le Sueur
8/14/2018

The Army Corps of Engineers and the Environmental Protection Agency are clarifying where they will grant states permitting power under the Clean Water Act for waters within their boundaries. The move is part of the Trump administration's bid to encourage states and tribes to assume more of the responsibility.

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The Hill
8/14/2018

The pipes in Toronto's drainage system, many of which are more than 100 years old, are not equipped to handle the area's increasingly severe rainstorms, says Frank Quarisa, acting general manager for Toronto Water. City officials say efforts to mitigate the flooding problem are ongoing, but critics are calling for quicker action, as well as new stormwater fees on homes and businesses with surfaces that produce excess runoff.

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The Toronto Star
8/14/2018

In Valley Park, a suburb of St. Louis, a levee is protecting the town from rising water but could cause an elevated risk of flooding in other towns along the Meramec River. "If you live on a river and your property is in a floodplain of some kind, you're eventually going to get wet," says Gerald Galloway, a civil engineering professor at the University of Maryland who spent decades studying the Mississippi River Basin.

8/14/2018

The 270-acre LaPlatte River Marsh in Shelburne, Vt., has joined six other wetlands in the state with Class I protection, which will increase the buffer surrounding it from 50 to 100 feet. "You risk death by a thousand cuts if you don't take steps to protect these special areas," says Jon Groveman, policy and water program director for the Vermont Natural Resources Council.

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VTDigger (Vermont)
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LaPlatte River Marsh
8/14/2018

California's once-broad and sandy Oceanside and Carlsbad beaches have withered to narrow, stony stretches, but a federally funded program may restore some of their former splendor with a sand bypass system. The system would continually vacuum sand from Oceanside's harbor and send it as far as about a mile south.

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Oceanside, California
8/14/2018

The Environmental Protection Agency says it has achieved milestones at 21 national priority superfund sites as part of its progress on recommendations issued a year ago in the Superfund Task Force Report. The EPA also has laid out plans to complete all 42 recommendations by the end of next year, including expediting cleanups, encouraging private investment and promoting redevelopment.

8/14/2018

A California judge has ruled that under the Clean Water Act, the Environmental Protection Agency must regulate stormwater pollution runoff in the Dominguez Channel and Los Cerritos Channel if it is presented with "sufficient data." The ruling comes after Los Angeles Waterkeeper and the Natural Resources Defense Council said the EPA wrongly denied their bid to mandate privately owned sources to obtain permits for releasing polluted stormwater into the channels.

8/14/2018

A new study examines the effects of two vegetation covers -- spontaneous and common sainfoin -- and different physiographic conditions on topsoil moisture and runoff in four vineyard fields in Spain. The sainfoin was much more effective at retaining topsoil moisture, while changes in the canopy covers, topography and rainfall explained runoff and sediment flows.

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MDPI (Switzerland)
8/14/2018

Don't miss your opportunity to touch and feel the difference between a clay loam soil or sandy loam soil at the IECA Edmonton Regional Event. This two-day event features a field tour to help attendees understand how sediment controls are used to minimize eroded soils and how erosion controls are used to dissipate energy and divert surface runoff. Register now!

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ieca.org