The North and Mid Wales Trunk Road Agent has sought to appoint Contractors to deliver Drainage Surveys.

Drainage surveys, in accordance with appropriate highway standards, including but not limited to;

- All assets condition and connectivity survey

- Validation survey

- Priority Asset Survey

- Filter drain condition survey by GPR

- Pipework and chambers defect survey by CCTV

- Pipework geometric survey by laser profiler

- Pipework inclination survey by CCTV

- Ditch defect and profile survey

- Pipework indicative condition by acoustic survey

- Chambers defect and geometric survey by laser scanner