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Culvert Inspection
OnSite is often called upon to provide this very specialised inspection service, particularly by our Framework clients the Environment Agency and British Waterways. Because of the difficult nature of these inspections along with the level of environmental sensitivity and awareness necessary, OnSite formed a department dedicated to this type of inspection.
Many of the locations we are asked to attend are often extremely difficult to access using motor vehicles - in some cases, impossible. In recent years, we have invested heavily in purpose built survey and cleaning vehicles, giving our teams at least a fighting chance of getting to most jobs. However, there are still locations where only manual effort teamed with sheer determination can get men and equipment to the job site. Because our inspection teams often encounter culverts that are exhibiting signs of structural distress, the Culvert Inspection Department works very closely with OnSite`s Civil Engineering Services department who have extensive experience in culvert repair and re-construction.
Where poor service conditions are encountered, e.g. heavy siltation/debris present in the culvert, OnSite has teams experienced in culvert cleaning who utilise various methods to bring the culvert back to satisfactory service condition. These include an off road high-pressure water jetting/vacuum unit (trailer-mounted and towed by a JCB Fastrac, with an extension hose reel mounted on a 4x4 dumper truck vehicle), as well as manual cleaning by our highly-trained man entry teams using shovels, wheelbarrows and vacuum equipment.
- Structural and service condition inspections of culverts and tunnels
- Inspection using either CCTV or Man Entry methods or a combination of both
- Option to call in Specialist Surveys Division for Sonar inspection if culvert/tunnel surcharged
- Difficult and remote access a speciality
- Off road inspection and cleaning units purpose built for this type of inspection
- Dedicated department, teams & equipment for this very specialist type of inspection
Survey units
Our Culvert Inspection vehicles (Landrover Special Vehicles Division) are purpose built and are replaced every 4 years ensuring reliability of service to our clients. Other than surveying equipment, every survey unit carries a wide range of essential Health & Safety equipment for safe confined space entry.
Reporting
Reports are generated, on site to international sewer defect coding standards, using the industry leading Wincan data capture software with video recorded to DVD or hard disk in MPEG 1, MPEG 2 or MPEG 4 formats. Survey data is subject to OnSite`s rigorous quality control procedures prior to final report compilation before dispatch to our client.