Since the start of the scheme earlier in 2023, Carnell’s civil engineering team have constructed 32 gullies, several of which were offset from the carriageway, to increase the drainage capacity. In addition, a 550m length of combined kerb and drainage was installed to quickly remove surface water.
Surfacing of farm access and infilling in front of kerbs was carried out, and structural defects of the sub-surface pipework were made good through dig-down repairs where accessible and economical.
Meanwhile, Carnell’s drainage survey & remediation team carried out trenchless repairs, including 147m of cured in-place pipework (CiPP) lining and 14 patches alongside robotic cutting. This was followed by a DDMS survey to National Highways specifications throughout the 1100m site extents.
Carnell’s in-house Technical Services team process the survey and round-trip the data before uploading the condition shape file to National Highways’ Drainage Data Management System.