In civil engineering, large-scale experimental testing is an essential tool for ensuring the performance, safety, and durability of infrastructure projects. It allows for the validation of designs, implementation of innovations, and the delivery of important data for research and development. The structural characteristics of a fully pre-fabricated sound barrier wall structure were experimentally investigated in this study. Two large-scale prototypes, each measuring 17 ft high by 11 ft wide, were used to test the system at the University of Illinois at Chicago’s High-Bay Structural Laboratory. The system was intended for rapid assembly. About 40 sensors have been placed in each prototype to monitor key aspects like load-deflection, load-strain, cracking, uplift, and failure modes. The wall system met serviceability and strength limitations and remained structurally stable under heavy loads, according to the results. The system’s wings each withstood a wind pressure of 15 psf (0.56 kN/m2), and their deflections stayed well within the allowed range. To further reduce the requirement for costly full-scale testing, a 3D nonlinear finite element analysis (NLFEA) model was developed and calibrated to simulate the behavior of the system. The response of the system under service and strength limitations was accurately predicted by the model.