GPRS Comprehensive Deliverables

by | Mar 31, 2020 | Industry News

GPRS provides the most comprehensive deliverables in the industry. They are customized to fit a project’s needs, from detailed electronic sketches to full utility mapping with GPS coordinates. These are concise ways to portray locate results. Deliverables are not only important to the current project, they can be permanently kept as records for future use, as well.

These are the basic deliverable options available to clients:


This is the standard deliverable, as utilities are located within the scope of work their locations will be marked out using paint and flags. If there are limitations on site that prevent using paint and flags, chalk, wax crayons or tape can be used as substitutes, but these are inferior options. Interior scanning uses paint, permanent markers, wax crayons, chalk and tape for marking out targets of interest to the investigation. The client can specify their preference, typically dictated by the site and what they require the marks for; saw cutting, or core samples, etc.

Sketch – Google Earth Overlay

For the Google Earth Overlay, Project Mangers collect the horizontal locations of the utilities and associated structures marked within the scope of work using a mapping-grade GPS (Geode). This mapping grade GPS unit can output a KMZ that can be imported into Google Earth. The results are then exported as an image and combined with the GPRS Google Earth Overlay template. The result is a PDF of the approximate utility locations with Google Earth imagery. Additionally, a KMZ file can also be provided.

Utility Mapping

For Utility Mapping, the Project Managers use the same mapping-grade GPS to collect the horizontal locations of utilities and structures as they do with the Google Earth Overlay. In addition, the points/lines/polygons collected are processed by the deliverable department and converted into utility mapping.

Utility mapping can include:

  • An overall drawing file (DWG or DGN)
  • Drawing files for each map sheet (DWG or DGN)

PDF map sheets of the utility mapping. The number of PDF map sheets is determined by the scale of the drawing, the scale of drawing is determined by the density of the utility infrastructure within the scope of work.

Aerial imagery

Spreadsheet containing GPS coordinates

The drawing files can be provided in either AutoCAD (DWG) or MicroStation (DGN) format. If the client provides a DWG or DGN of the site, it can be incorporated into the mapping.

Investigative Reports

GPRS can provide in-depth reports on the following project types, they typically include:

  • Project Overview
  • Tools and Methods Results
  • Site Photos
  • Google Earth Overlay

PR data images with explanations of the targets of interest

Topics for the report include:

  • Summary of Scanning of Core Drilling Locations Summary of GPR Investigation of Concrete Structure
  • Summary of Scanning of Anchor Locations Summary of Scanning of Saw Cutting Locations
  • Summary of Scanning to Locate Voids Below Concrete Summary of Scanning for Subsurface Voids
  • Summary of Underground Utility Locating
  • Summary of Underground Utility Locating for Soil Borings Summary of Scanning for Underground Storage Tanks (UST’s) Summary of Scanning to Locate Burials

Findings are layered into an Auto CAD drawing for the client. All lines are collected with a Geode GPS. That data is then compiled into one file and placed into a drawing. The snapshot on the right is the result of the scans and GPS data collection. Each line is color coordinated based on utility type and includes the depth of the utility.