Silt fence tiebacks were designed using a Visual Basic (VBA) coded spreadsheet design tool was developed to assist practitioners in the proper design of silt fence tieback systems to be used on highway construction sites. The tool uses the mathematical concepts outlined along with the Soil Conservation Service (SCS) Curve Number (CN) method to determine an adequate tieback spacing that will accommodate a user specified rainfall event. The tool is composed of two components which are: (1) the stormwater runoff component and (2) the silt fence storage capacity component. The details of these two components are were used to determine an appropriate tieback configuration on an ALDOT job site.
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