Deep excavations can comprise one of the most challenging design and construction geotechnical problems. Many factors affect their performance including soil strength, ground-water, building surcharges, construction methods, and construction techniques. Engineers are confounded with the complex problem of predicting behavior while producing a safe and economical design. Typical parameters of interest are design wall moments, bracing forces, wall displacements, and ground or building settlements. Many authors have compiled case histories that quantify maximum observed displacements in various publications. Often, these publications include benchmarking of observed behavior otherwise known as Class “C” predictions. Few authors have compiled Class “A” predictions where performance predictions are presented before the actual project is completed. This publication presents a recently developed online database of deep excavation prediction and performance available to engineers in an effort to make performance and modeling information more accessible. In addition, the performance and benchmarking of nearly 39 deep excavations is briefly presented, focusing mostly on inclinometer recorded wall deflections
