Washington, Florida Install Floating Outlets and Skimmers

The city of Medina, Wash., home to Microsoft founder Bill Gates, installed an ER-202H hybrid configuration floating outlet and skimmer at Medina Park on Dec. 13, 2012. The product was installed to provide automatic level and discharge rate control for the park’s stormwater detention pond. Level and rate control were historically controlled with a flashboard riser system, which required the city’s public works staff to manually remove the flashboard during periods of extended wet weather. With the addition of the new floating outlet and skimmer, discharge from the pond is automatically controlled at a rate which will not exceed the capacity of downstream culverts while minimizing both the frequency and duration of overtopping events of the system’s emergency overflow weir during the 10-year and 100-year design storms. The ER-202H floating outlet and skimmer is installed in a 3 ft square precast concrete structure and produces a discharge of 10.5 cfs at 1.5 ft of head above the rim. Stormwater modeling and project design was completed by the city of Medina Public Works department with the assistance of engineers from Thirsty Duck LP.

The city of Bradenton, Fla., installed an ER-202, dual restriction configuration floating outlet and skimmer in a new wet detention pond serving McKechnie Field, the spring training home of Major League Baseball’s Pittsburgh Pirates on Feb.19, 2013. The floating outlet and skimmer was installed to reduce the required detention volume and the design high water elevation for the 25 year, 24 hour design storm event. The product was installed in an FDOT Type C precast inlet and produces a peak constant flow rate of 19.8 cfs with a total rise of 2.5 ft. Stormwater modeling and project design was completed by ZNS Engineering, Inc. of Bradenton, Fla., with the assistance of engineers from Thirsty Duck LP.

Source: Thirsty Duck LP