Project Overview
Collins inventoried, inspected, and assessed over 800 earth retaining systems (ERS) owned and maintained by Minnesota Department of Transportation’s Metro District.
MnDOT Metro had a partial geographic information system (GIS) inventory of certain types of ERS that was created using design plans. Collins verified, updated, and expanded the existing ERS geodatabase, inventoried additional ERS, inspected inventoried ERS, and completed statistical assessments of the captured data. Collins also assisted Metro with the development of a formal ERS management program including the development of an ERS Inventory and Inspection Manual.