Measurements of Bridge-Scour Depths in Mississippiby K. Van Wilson, Jr., (M.ASCE),
Abstract: This paper briefly summarizes 190 measured pier-scour depths collected dur ing 1942–94 at 22 selected bridges in Mississippi and presents an envelope-curve equation for the data. The envelope-curve equation was developed by relating pier-scour depth divided by normal pier width to approach-flow depth divided by nor mal pier width. Measured pier-scour depths were compared to pier-scour depths predicted by the pier-scour equation currently recommended in the Federal High way Administration Hydraulic Engineering Circular No. 18 and pier-scour depths predicted by the envelope-curve equation.
Subject Headings: Scour | Piers | Bridges | Data collection | Federal government | Mississippi
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