
HTA Blend the latest Tech with Traditional Techniques
The leading experts in the investigation of Post Tensioned Bridges and the only company in the UK to robotically test a major cable stay rail bridge.
Investigating, inspecting and testing has been the backbone of HTA as a company for over 30 years.
Maximise projects & minimise problems with HTA as the Principal Contractor alongside provisional reports within 24 hours

HTA carry out Bridge Investigations on the following
Highway
Network Rail
London Underground
Transport for London ‘TFL’
Canal
Environment Agency
Privately Owned
English Heritage
HTA bridge projects include
This list is not exhaustive, however it gives a good idea of the range of bridge services undertaken.
Investigations
‘Investigations – accurately determine the health and or construction of the bridge
PTSI Investigations
Post Tensioned Special Inspections ‘PTSI’ Void Detection – using ultrasonic testing to determine the potential voidage within tendon ducts
‘PTSI’ – using innovative technology to determine the condition of the post tensioned elements to the bridge
Bridge Testing
Testing – accurately determining the condition of various bridge construction types and materials including
HAC Investigations
HAC (beam) Bridge Investigations – determining the presence and condition of HAC elements
Bridge Inspections
Inspections – working to Highways England & Transport for London specifications
Discover more for where you are located
The following links will take you to our country dedicated websites
England & NI websites
Structural Investigations | Building InvestigationsWales websites
Structural Investigations | Building InvestigationsScotland websites
Structural Investigations | Building InvestigationsRepublic of Ireland websites
Structural Investigations | Building Investigations