Maximum scour depth at submerged skewed bridge and pier

Maximum local scour depth around pier due to the submerged skewed bridge along with its rectangular pier under clear water condition has been experimentally studied. In present study, twenty four tests were carried out includingsix various aligned bridge models with the different angles such as0, 5, 10, 15, 22.5 and 30 degree to the presumptive perpendicular line to the flume wall under two flow types of fully and partially submerged bridge above two different median sizes of uniform sediments. However, in the present study, aligned factor in pressure flow is experimentally evaluated, its results are much less than aligned factor in free flow in the same ratio of rectangular pier length to the pier width. Also, the relationship between dependent and independent variables firstly was determined. Thereafter, an equation was acceptably proposed by using dimensional analysis, collected data and multiple linear regressions