About Chris Duffy & Associates Ltd
CDA specialize in:-
- Topographical Surveying
- Earthwork Studies/Volumes
- Machine Control (Trained and certified at the Leica Geosystems Factory in Odense, Denmark)
- Setting out (Earthworks/Drainage/Pavements/Substructure/Reinforced Concrete/Rail)
- Laser Scanning
- Monitoring (Embankments/Structures/Rail)
- Producing Data for Engineers
- Producing Drawings (Isopachs/Sections/Plans)
- Installation and Maintenance of Primary and Secondary Survey Control.