Giant erosion model reproduces 200 miles of lower Miss. River | Pa. township faces stiff sediment reduction rules | How vegetation affects erosion in riparian restoration
April 19, 2018
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Top news for the stormwater, erosion and sediment control industry
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Giant erosion model reproduces 200 miles of lower Miss. River
A 10,000-square-foot model reproduces the lower Mississippi River, giving researchers a powerful tool in the battle against erosion along Louisiana's coastline. The Louisiana State University model reproduces nearly 200 miles of the river leading down to the Gulf of Mexico.
The Associated Press (4/17) 
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Erosion/Sediment Control
Pa. township faces stiff sediment reduction rules
At least 60% of the land in Pennsylvania's Bethlehem Township will be affected by requirements that the city curb its sediment runoff by 188 tons a year over the next five years. The report presented to township commissioners was in response to an Environmental Protection Agency mandate that states find ways to reduce sediment.
The Morning Call (Allentown, Pa.) (4/16) 
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How vegetation affects erosion in riparian restoration
The growth of urbanization had degraded waterways in a variety of ways, a phenomenon that has been addressed with riparian restoration that on occasion has introduced invasive species of flora. A Temple University study in particular examines the effects of Japanese knotweed, an invasive species, and found greater erosion in areas where the plant dominated over trees.
MDPI (Switzerland) (4/14) 
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Stormwater Management
Possible solutions to protect Miami Beach from rising sea levels
A Harvard University design team has developed several potential solutions to help protect Miami Beach, Fla., from rising sea levels. A recent presentation showed a sloped sea wall and green infrastructure that would capture some of the water, among other ideas.
WFOR-TV (Miami-Fort Lauderdale) (4/15) 
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Study documents water quality improvements from stormwater projects
A study tracked water quality changes around Baltimore from 1998 to 2014 and confirmed the theory that stormwater retention projects improve water quality. "We've known a long time, sewage bad, stormwater projects good," said Alice Volpitta, water quality manager for Blue Water Baltimore.
The Baltimore Sun (4/16) 
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Wetlands & Coastal Restoration
Students to pitch in on Calif. riverfront project
Students in Petaluma, Calif., will be planting native vegetation in the fall in a riverfront park using funds from a grant and a novel tax for Bay Area wetland restoration. The effort will include plants selected to survive changing weather patterns.
The Press Democrat (Santa Rosa, Calif.) (4/13) 
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Policy & Regulation
Bill would eliminate need for ships to clean up ballast water
Shipowners may soon be exempt from requirements to clean up ship ballast whose release introduces invasive species. The Senate is due to consider a bill that's aimed at exempting the US Coast Guard from the Clean Water Act, but opponents fear the bill could have far-reaching consequences.
Duluth News Tribune (Minn.) (4/16) 
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San Francisco proposes funding vital seawall repair
Earthquakes and rising sea levels are addressed in San Francisco's proposed $425 million bond measure to repair the crumbling Embarcadero seawall. The wall is 100 years old and protects city landmarks as well as a range of public and private properties.
San Francisco Chronicle (tiered subscription model) (4/16) 
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From Around the World
Study charts multiple consequences of tropical logging
A study in the Solomon Islands finds that logging in tropical forests leads to major erosion that threatens water quality and leaves land unable to support farming. Even the introduction of best practices failed to do much to mitigate the problems.
United Press International (4/16) 
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Understand Delaware's Shoreline Management Strategy at the IECA Delaware Regional Event
Delaware's beach erosion has been an issue since widespread development along the coast began in the late 1800's. Learn how the state's strategy for shoreline management will continue to evolve at the IECA Delaware Roadshow: Coastal Resiliency Planning event, June 14 at the Dover Downs Hotel and Casino in Dover, Delaware. Learn more!
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Register for the 2018 MS4 Conference Before 4/23 to Save
The early bird deadline is approaching for the MS4 Conference May 21-23, 2018 in Chattanooga, TN. Space is limited and filling up fast! Don't miss your chance to network with stormwater management peers and learn the latest techniques to mastering the challenges of managing municipal stormwater programs. Register now!
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If you reject the food, ignore the customs, fear the religion and avoid the people, you might better stay home.
James A. Michener,
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About IECA
The International Erosion Control Association (IECA) is the world's oldest and largest non-profit, member organization that provides education, resource information and business opportunities for professionals who specialize in natural resource protection. For more information about IECA, please visit
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