This report by the University of Missouri-Rolla (UMR) Department of Civil Engineering contains the hydraulic interception efficiency and flow capacity of the bridge deck drain design used by the Missouri Highway and Transportation Department (MHTD). Hydraulic interception efficiency is defined as the fraction of gutter flow removed by the bridge deck drain (scupper) expressed in percentages. This research ascertained the hydraulic interception efficiency for scuppers of a circular and a 4 inch x 8 inch rectangular section. To analyze the rectangular section, parallel and perpendicular orientation of the eight-inch dimension to the direction of flow were both used. Also, the rectangualr scupper was recessed three-quarters of an inch below the pavement to improve hydraulic interception efficiency. A further attempt to improve efficiency was to grout a smooth transition to the recessed scupper. These configurations were built and hydraulic interception efficiency was determined. Variables affecting the fraction of gutter flow removed by the scupper, scupper efficiency, and the basic form of the relationship were all determined. These measures of interception efficiency are consistent with and can be used with procedures shown in Federal Highway Administration Report No. FHWA/RD-87/014, 'Bridge Deck Drainage Guidelines'.


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    Title :

    Scupper Interception Efficiency


    Contributors:

    Publication date :

    1995


    Size :

    64 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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