Drainage records are often incomplete, out of date or simply wrong. Our survey teams undertake detailed GIS location, structural and service condition surveying of manholes to give owners, developers and utilities an accurate picture of their network.
Using the latest GPS surveying equipment we gather, manage and present the data cost-effectively, with detailed information and layouts for planning, maintenance and design.
What is included
- GIS and GPS location of manhole covers, inverts and connections
- Structural condition of chambers, benching and covers
- Service condition: infiltration, silt levels, flow and blockages
- Network layouts and schematics for your records
- Investigation of excess infiltration and repeat blockages
- Combined manhole and CCTV surveys for complete network records
When you need one
When records are poor or missing, ahead of adoption or sale, when planning development on an existing network, or when problems such as excess infiltration or blockages containing manhole materials suggest chambers are deteriorating.
Data you can use
Locations, levels, dimensions and condition grades with photographs and drawn layouts, exported to suit your GIS or asset system. Combined with our CCTV pipeline surveys, that is a complete record from cover to cover.
Questions we get asked
Can you survey live sewers?
Yes. Our teams are equipped and trained for live foul and surface water networks with the appropriate precautions and traffic management.
What format is the data in?
Reports, photographs and drawings as standard, with data exports to suit your GIS or asset system on request.