Bridge Scour: What to Consider
The most common cause of bridge failures over streams is from floods scouring bed material around bridge foundations. Scour is the engineering term for the erosion caused by water of the soil surrounding a bridge foundation (piers and abutments). Bridge scour evaluation requires multidisciplinary inputs.
This presentation will focus on the formation of bridge scour, types of bridge scour, and what to consider in estimating bridge scour. It will touch on items to be included in a scour report and provide available guidance material.
Author Bio
Tony Kakoullis, PE, is a Senior Project Manager in the Stormwater Division of Timmons Group, based in Ashburn, VA. Tony’s expertise includes stormwater management design, floodplain studies, bridge scour analysis, and MS4 Permit compliance. Tony is a certified DEQ Dual Combined Administrator.

