Project Brief South Center Parkway – Canal Gate City of Tukwila, WA The City of Tukwila has seen the many benefits of specifying PREDL SYSTEMS manhole base liners as neighboring Pierce County has specified manhole base liners since 1989. The City of Tukwila wanted to take advantage of the watertight connections and fully protected benching offered by lined manhole bases for the South Center Parkway project. This project involved 43

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