Subsurface Utility Engineering That Reduces Risk
We locate, map, and verify underground utilities so your project avoids costly delays, redesigns, and utility conflicts.
Accurate utility data is essential for reducing risk and avoiding costly delays during design and construction. H&M Surveying provides Subsurface Utility Engineering (SUE) services focused on utility location and mapping to support engineers, contractors, and municipalities. Our team specializes in SUE Levels B, C, and D, using proven non-intrusive methods (excluding Ground Penetrating Radar) to identify and document subsurface utilities.
At Level B, we use electronic utility locators to designate and mark the horizontal position of underground utilities based on surface geophysical methods and visible features. Level C incorporates data from existing utility records and visible surface features, while Level D relies on utility owner records, as-built drawings, and client-provided information to develop a preliminary utility map. Together, these levels provide a graduated approach to utility mapping, helping clients balance schedule, budget, and project needs.
With H&M Surveying’s expertise, you can trust that utility conflicts are identified early, enabling smarter design decisions and safer construction practices.
Talk to a Survey + Sue Specialist
Drop us a line today for a free quote!
Why SUE Matters Before you Break Ground
- Utility conflicts cause:
- Delays
- Redesign
- Cost overruns
- Safety risks
Unknown utilities are one of the leading causes of construction delays and change orders.
A Survey-first Approach to SUE
- Survey + SUE integrated workflow
- Data tied to survey control (not just paint marks)
- Field-to-CAD consistency
- Faster turnaround due to in-house crews
How We Deliver Reliable Utility Data
-
Steps
- Utility Records Research (Level D)
- Surface Feature Survey (Level C)
- Electromagnetic Locating (Level B)
- Survey Integration & Mapping
- Conflict Identification
SUE Quality Levels
| Level | What It Means for You |
|---|---|
| D | Initial planning data |
| C | Verified surface correlation |
| B | Field-located utilities (high confidence) |
| A | Exact location via test holes |
Advanced Utility Locating + Survey Integration
- RD7100 locating
- GPS control
- Robotic total stations
- CAD / Civil 3D deliverables
Who We Serve
- Civil engineers
- Developers
- Contractors
- Municipalities
Talk to a Survey + Sue Specialist
Drop us a line today for a free quote!
Subsurface Utility Engineering (SUE) is the process of identifying, mapping, and verifying underground utilities before construction or design begins.
SUE combines utility records, field survey, and advanced locating methods to provide a clearer picture of what exists below the surface.
SUE is important because unknown or inaccurate utility information is one of the leading causes of construction delays, redesign, and cost overruns. By identifying utilities early, SUE reduces risk, improves design accuracy, and helps keep projects on schedule.
