Applus+ in Saudi Arabia delivers site investigation services for Riyadh City Boulevard

The works included a detailed topographic survey across the project area to establish accurate ground levels, site boundaries, existing utilities corridors, access routes, and surface features. The survey outputs were used to generate georeferenced mapping and digital terrain models, providing a baseline reference for design development, coordination across multiple disciplines, and planning of construction logistics and temporary works within a constrained urban environment.

A geotechnical investigation programme was implemented, comprising boreholes, trial pits, in-situ testing, and laboratory testing of soil samples along the project alignment and at targeted locations. The programme was designed to characterise soil stratigraphy, bearing capacity, settlement potential, and ground variability, supporting foundation design, earthworks planning, and assessment of ground performance under temporary and permanent loading conditions in line with project requirements.

To supplement the intrusive ground investigation works, Applus+ conducted a geophysical survey using Ground Penetrating Radar (GPR) over approximately 500,000 m². The survey focused on identifying potential underground cavities, voids, buried obstructions, and anomalous features that could affect construction safety or performance. The non-intrusive methodology enabled rapid coverage of a large urban footprint and supported correlation with geotechnical findings to refine subsurface interpretation and risk identification.

In parallel, a hydrology study was undertaken to assess surface water behaviour across the site and its interface with surrounding catchments. The study reviewed wadis, drainage paths, and stormwater runoff patterns under different rainfall scenarios, supporting flood risk assessment, temporary works planning, and permanent drainage design. The findings informed surface water management measures to reduce the potential for water accumulation, erosion, and construction-stage disruption.

By integrating topographic, geotechnical, geophysical, and hydrology services within a single coordinated scope, Applus+ supported project stakeholders in managing ground-related risks, informing design decisions, and planning construction activities for the development of Riyadh City Boulevard as a key Riyadh Season destination.