Levee Gate for South River Industrial Sub-District, Palmyra, Missouri
PSBA was hired by the South River Industrial Sub-District to complete the design and structural calculations necessary for the construction of a closure structure (levee gate) and the removal of an existing sluice gate at Rockbridge Slough. These improvements allowed the sub-district to submit the required information to FEMA for Levee Certification.
South River Industrial Levee protects 1,600 acres of industrial property adjacent to the Mississippi River. The Levee system protects the sub-district from 500-year flood events. The levee system has several openings for rail and barge access. Over the years, many of these opening have been outfitted with closure structures in lieu of labor intensive sand bag operations.
The latest structure, designed by PSBA in 2011, was installed along the Mississippi River and provides protection at a barge loading facility. This structure was designed to protect against 500-year flood events and provide 3 feet of levee gate free board. The structure utilizes a steel pile cut off wall, cast into a reinforced concrete receiving dock for the gate. The gate was designed to provide the needed protection and can installed with equipment typically found onsite. This is the third structure designed by PSBA for the sub-district.
This project was completed in 2012.