Toskanes were developed as an alternative scour countermeasure where riprap is not feasible or available in large sizes. The Toskane design procedure is based on results of a hydraulic model study of several different piers and abutments. Toskanes can be fabricated in sizes to meet the design requirements. One example of installing Toskanes at a bridge with a pier and vertical abutments is presented. Criteria are provided to size the Toskane. Techniques for installation are suggested and costs for the project are estimated.
Design Example for Bridge Pier Scour Measures Using Toskanes
Transportation Research Record
Transportation Research Record: Journal of the Transportation Research Board ; 1523 , 1 ; 173-177
2019-01-01
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Design Example for Bridge Pier Scour Measures Using Toskanes
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