Every engineering design project is built upon a foundation of geomatics, including land surveying, Geographic Information Systems (GIS), remote sensing, and subsurface utility engineering. WithersRavenel provides fast, accurate, and reliable geomatics services. Automated digital data collection in the field combined with fully integrated workstations in the office ensures both speed and accuracy in every project we deliver.

We pride ourselves in the ability to tailor our methodologies to fit the necessary accuracy and resolution of every project.  We employ state-of-the-art measurement technologies to drive design and engineering decisions for optimal use of land and water resources.

By integrating our geomatics services with all of the other planning and engineering disciplines that we offer, we provide the most efficient solutions for the real world problems that you face.

Our Services

  • Boundary & Topographic Surveys
  • High-Definition Laser Scanning
  • Data Collection & Database Management
  • Aerial Photography & Videography
  • Mapping & Modeling
  • Construction Staking
  • As-Built Surveys
  • Utility Survey & Assessment
  • Staff Training & Workshops

Land Surveying

Land surveying has been a core capability of WithersRavenel since the firm’s founding. In the three decades since, our surveying team has grown into one of the region’s largest, and we have enhanced our capabilities through a constant investment in the latest technology. Our conventional survey crews are supported electronic Total Station equipment and a Leica ScanStation C10; our Global Positioning System (GPS) crews use Trimble and Leica equipment capable of performing survey-grade static or real-time kinematic data collection missions on the Global Navigation Satellite System (GNSS).

Our Services

  • Location Surveys
  • Topographic Surveys
  • Aerial Mapping Support Surveys
  • Boundary Surveys
  • ALTA Surveys
  • Property Research
  • Right-of-Way Surveying/Description
  • Easement Maps
  • Deed Descriptions
  • Utility System GPS Mapping
  • Construction Staking
  • Hydrographic Surveys
  • As-Built Surveys

Geographic Information Systems (GIS)

WithersRavenel has a long history of assisting private and public clients in developing their own Geographic Information Systems. Our clients recognize the value of spatial information and how that knowledge can enhance operations and decision making processes. Our GIS staff are here to assist you with a field survey of your utility assets, condition assessments, or an update of an existing GIS. From planning through implementation to staff training, we have the experts you require. The result is a deliverable that will meet your immediate needs and protect your investment in technology and people.

Our Services

  • Utility Asset Inventory
  • GIS Data Services
  • GIS Implementation
  • Cartography
  • Training & Support

Remote Sensing

Remote sensing technology, which includes laser scanning and aerial photography/videography via Unmanned Aircraft System (UAS), enables WithersRavenel to collect data quickly and safely.

Our Services

  • ADA Certification
  • Aerial Photography
  • Building As-Builts
  • Deformation Surveys
  • Floor Flatness Surveys
  • Historical Surveys
  • Hydrographic Surveys
  • Infrared (Thermal) Imaging
  • Laser Scanning
  • Low-Altitude Photogrammetry
  • Mapping & Modeling
  • Multispectral Imaging
  • Volume Analysis

Subsurface Utility Engineering (SUE)

Using electromagnetic (EM) equipment and active or passive methods, WithersRavenel can designate conductive utilities such as copper telephone wire, coaxial cable, fiber optic cable, metallic water and sewer line, and gas line. Active methods are used for known utilities; passive methods are used for unknown utilities.

Using Ground Penetrating Radar (GPR) equipment, WithersRavenel can designate non-conductive utilities and structures such as asbestos concrete, PVC, RCP, and USTs.

WithersRavenel also has the capability to perform vacuum excavation on critical utilities. Vacuum excavation provides verification on the size, depth, and material of specific utilities, along with accurate horizontal and vertical locations.

Our Services

  • Records Research
  • Topographical Survey
  • Utility Designation
  • Vacuum Excavation

READY TO GET STARTED ON YOUR PROJECT?  Send us an email or call us at (919) 469-3340.