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DDMS Surveys

Pioneering Highway Drainage Survey Solutions Using the Latest Technology

Carnell are the leading provider of DDMS Surveys nationwide. We provide asset inventory and condition assessment of a roads entire surface and sub-surface drainage asset, prioritising areas in need of remediation through detailed reports and drawings.

GPS, Jetting and CCTV operations are carried out by our experienced site teams to the client’s requirements with information passed to the in-house Technical Services team. The data is processed and QA checked so that it is ready for upload to DDMS or providing evidence for VM Analysis, Design and Remediation Proposals.

Carnell provide surveys to CD 535 & CS 551 specifications, modified by CD 535.

The benefits

  • Experienced and qualified site teams
  • In-house Technical Services team
  • Full range of survey types to suit client requirements
  • Ability to programme schemes and manage TM booking
  • Quick mobilisation of teams
  • Carnell owned and maintained survey equipment and vehicles

Survey types

  • FADDS (Full Asset Detailed Defect Surveys) – Comprehensive asset inventory and condition survey.
  • FASTtrack – A specification developed with the HE to provide quicker yet unequivocal surveys.
  • Connectivity – Using SMARTview kits to give a quick assessment grade to piped drainage asset.
  • Balancing Ponds – Focusing on ponds and their Access, Safety & Security features.
  • Culvert Surveys – De-watering and surveying culverts for drainage or structures teams
  • Outfall Surveys – Locating where highways drainage crosses boundary fence and enters watercourses.
  • Digitisation – Desk-based survey using scanned as-built drawings to map drainage assets

In numbers…

551

CS 551 SPECIFICATION

Pipework inspections are carried out to the Standard for CCTV Survey of Highway Drainage Systems

535

CD 535 SPECIFICATION

Asset Inventory surveys are undertaken to the Drainage Data Management
System for Highways

535

CD 535 COMPLIANCE

Carnell surveys give full compliance to CD 535: Guidance on drainage surveys and associated data

OS19

OS19x QUALIFIED TEAM

All Rig-Managers and CCTV QA Processors are qualified to the industry standard

15X

SURVEY TEAMS

Carnell's survey teams work nationwide, night or day, whatever the workload.

12X

TECHNICAL SERVICES MEMBERS

Our in-house Technical Services team comprises of CCTV Quality Assurance Technicians, GIS Processors, CAD Technicians and Report Writers.

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