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原文传递 THREE ENVIRONMENTAL PROJECTS HONORED AT WEDAS SUMMIT & EXPO, JULY 2022 in HOUSTON, TEXAS

题名：	THREE ENVIRONMENTAL PROJECTS HONORED AT WEDAS SUMMIT & EXPO, JULY 2022 in HOUSTON, TEXAS
正文语种：	eng
摘要：	Cedar Bayou is a natural tidal inlet, located approximately 40 mi. southwest of the Matagorda Ship Channel in Aransas County, Texas. When the inlet is open, it enhances the surrounding bay system by providing circulation to 22,000 ac. of Vinson Slough marshes, serves as a migratory fish pass for marine life, and supports the economy of Aransas County. The bayou is also a critical habitat for endangered species such as piping clover, red knot, whooping crane, and several sea turtle species, and it serves as a fish pass for red drum, spotted sea trout, and blue crab to move from the Gulf of Mexico into Mesquite Bay to spawn. Historically, the inlet's hydraulic connection to the Gulf is vital for marine and bird habitats and has often opened and closed, making frequent maintenance dredging necessary. In 2014, a reopening effort was completed with approximately 600,000 yd3 of material being dredged from the Cedar Bayou inlet and connecting Vinson Slough. After the completion of the project, monitoring efforts indicated that ecological productivity increased substantially, and an overall increase in both tidal sand flat, estuarine wetlands, and seagrass resulted. Then, in August 2017, a Category 4 hurricane, Harvey, caused sediment buildup at the tidal inlet and the closure of the channel once again. Since its closure in 2017, the lack of tidal exchange has adversely impacted the bay system's health, including an overall reduction in marine life and water quality. Thus, in May 2021, an intricate combination of mechanical and hydraulic dredging was undertaken, removing approximately 300,000 yd~3 of material from Cedar Bayou and Vinson Slough and reopening the inlet. Dredged material was beneficially used as beach nourishment south of the project site along St. Joe Island.
出版年：	2022
期刊名称：	World dredging mining & construction
卷：	55
期：	1/2
页码：	31-32