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White Tanks Award
 

Hoskin Ryan Receives Award for White Tanks FRS No. 3 Outfall Channel

 
Hoskin Ryan was presented with a Merit Award for White Tanks FRS No. 3 Outfall Channel project at the Arizona Forward 43rd Annual Environmental Excellence Award dinner on September 20, 2014. This project was successfully completed in 2013 by the Hoskin Ryan team under the direction of Flood Control District of Maricopa County (District).

This five-mile channel that follows the Jackrabbit Trail alignment north of Interstate 10, provides an outfall for White Tanks Flood Retarding Structure No. 3 and removes previously adjacent properties from the 100-year floodplain. Rather than construct a traditional concrete lined channel, the Flood Control District of Maricopa County (District) and its interdisciplinary design team embraced public feedback to design a channel that harmonizes with the natural and built environments.

This five-mile long channel conveys floodwater releases from the principal spillway of White Tanks FRS No. 3 to FRS No. 4 and provides flood protection to properties bordering Jackrabbit Trail. Features include culverts at nine roadway crossings, 18 grade control structures, stepped spillways, cast-in-place concrete pipe at the crossing of the dam’s emergency spillway, and flexible HDPE pipes within a potential subsidence area.

Environmental elements include over 1,600 native trees grown from saplings, 130-acres of native hydroseed, and water-harvesting swales. Structural elements are molded with rock-like forms and painted with desert hues, and a multi-use trail provides a point of connection to the Maricopa Regional Trail System.

Hoskin Ryan Receives Honor Award for White Tanks FRS No. 3 Outfall Channel

 
Hoskin Ryan was presented with the Arizona American Council of Engineering Companies’ (ACEC) 34th Annual Engineering Excellence Honor Award in 2014, for the White Tanks FRS No. 3 Outfall Channel.