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  • Arroyo Chico drainage project nears completion

    Apr 06, 2015 | Read More News
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    Tucson drivers and pedestrians no longer have to dread forging monsoon flooding near Tucson High School due to completion of a Pima County storm drainage project this month.

    High School Wash Storm Drain is the final increment of the four-part Tucson Drainage Area/Arroyo Chico project, which included flood control, environmental restoration and recreation features. A dedication ceremony for this fourth and final section will be at 1:30 p.m. April 16 at the northeast corner of 8th Street and 3rd Avenue.
    “The High School Wash Storm Drain project is an outstanding example of cooperation among different governmental agencies,” said Larry Robison, Pima County Public Works Division Manager. “The U.S. Army Corps of Engineers was the lead agency on the development and construction, and Pima County Regional Flood Control was the local sponsor. The City of Tucson and Tucson High School were key partners with us, as one half of the improvement area lies underneath the high school and the other half in City of Tucson streets.”

    The High School Wash Storm Drain, which cost approximately $4.2 million, consists of 776 linear feet of a new concrete box culvert that connects with the existing 1930’s vintage concrete box culvert under Tucson High School. The new storm drain efficiently moves storm flow from the inlet at Euclid Avenue east to Tucson High School into the new 8th Street storm drain system, and ultimately into the Santa Cruz River. It will significantly reduce flooding around Tucson High School and the 4th Avenue businesses.

    Pima County Supervisor Richard Elias will be Master of Ceremonies at the dedication ceremony, and Pima County Supervisor Ramon Valadez will be a guest speaker. Brigadier General Mark Toy, Commander of the Southern Pacific Division of the U.S. Army Corps of Engineers, will also speak.

    The total project area encompasses approximately six miles of the Arroyo Chico Wash (also known as Tucson Arroyo) from Alvernon Way to its convergence with the Santa Cruz River near St. Mary's Road. It included improvements in the Del Urich Golf Course/Randolph South Detention Basin, the Cherry Field Detention Basin and Railroad Wash Confluence, and the Park Avenue Basin Complex.

    For detailed information and background on the Tucson Drainage Area/Arroyo Chico Multi-Use Project please visit the Pima County regional Flood Control Districts’ projects page.