Aerial photogrammetry survey of 21 underground drainage adits

Folkestone Warren is an area of land prone to landslides. In December 1915, a severe landslip at Folkestone Warren, known as The Great Fall, resulted in train derailments and continued rail movement on the Dover to London South Eastern... Read more

Type of work: 3D Laser Scan Survey, Civil Engineering, Land Survey, Rail, UAV Aerial Surveying, Underground Surveying

Sonar survey of a water-filled coal mine roadway beneath railway station

A new railway station was due to be constructed in Willenhall, Staffordshire on the Wolverhampton to Walsall mainline.

Historic mine plans indicated that a coal mine roadway was situated directly beneath where the proposed new railway station was to be built.... Read more

Type of work: 3D Laser Scan Survey, Civil Engineering, Land Survey, Mining and Minerals, Rail, Sonar Surveys -Multi Beam, Underground Surveying

Subsurface Bathymetric Sonar Survey of the River Irwell

Geoterra was appointed by clients Arcadis and Peel Ports to carry out a subsurface bathymetric sonar scan survey on the River Irwell at Clippers Quay in Salford.

The survey was required to help the clients to ascertain the riverbed levels and... Read more

Type of work: 3D Laser Scan Survey, Civil Engineering, Laser Scanning

UAV LiDAR Survey of a Railway Cutting on the Chiltern Rail Line

Geoterra was appointed by Coffey Geotechnics, The Murphy Group and Network Rail to complete a UAV aerial survey of a railway cutting on the Chiltern line in Harbury, Warwickshire. They required both low level LiDAR survey and a HD ortho... Read more

Type of work: Civil Engineering, Land Survey, Laser Scanning, Lidar Survey, Rail, UAV Aerial Surveying

Drainage Culvert Survey Beneath East Coast Main Line

Geoterra was appointed by AMCO Giffen and Network Rail to carry out a 3D topographical laser scan survey of the surface, and a subsurface laser scan and remote UAV photogrammetry survey of a brick-built drainage culvert. This culvert had been... Read more

Type of work: 3D Laser Scan Survey, Civil Engineering, Culvert Survey, Land Survey, Laser Scanning, Rail, Subsurface Laser Scanning, UAV Aerial Surveying, Underground Surveying

Historic Coal Mine Subsurface Laser Scan Survey

Geoterra was appointed by The Coal Authority to determine the location, size and orientation of an historical coal mine void that had been discovered beneath a main road and its adjacent properties. 

The coal mine had been discovered... Read more

Type of work: 3D Laser Scan Survey, Civil Engineering, Laser Scanning, Mining and Minerals, Subsurface Laser Scanning, Underground Surveying