Subsurface Facility Mapping and Surveying
Accurate Underground Facility Mapping and Topographic Surveying for Smarter Design
Take your subsurface facility investigations a step further by defining the exact position, depth, and characteristics of buried infrastructure. 4D ardently adheres to best practices and industry recognized standards every time we investigate a site or collect data for your project. Whether you are looking to visually confirm and position existing utilities at critical points prior to construction or just need records to inform your preliminary design, 4D' collaborative services are here to help facilitate the information you need.
Following ASCE 38-02/22 standards, SUE deliverables are classified from Quality Level D (records-based) to Quality Level A (exposed and surveyed).
Applications include:
• Infrastructure design and conflict analysis
• Site redevelopment and urban infill projects
• Risk assessment and asset management
SUE work can be provided as an overlay onto your existing survey data or integrated directly into a full site topographic survey for a complete picture of both surface and subsurface conditions.
Why Choose 4D
• Experienced technicians: Certified and trained investigative locators with decades of experience locating all utility types.
• Survey-grade precision: Locates tied to control for immediate integration into CAD
• Flexible scope: Turn-key services including Records research, Topographic Surveying, Facility Locating, Daylighting/Potholes/Test Pits, and certifiable deliverables.
