Mapped: Aerial imagery shows M25 runoff ponds have not been maintained for decades | New Civil Engineer
Mapped: Aerial imagery shows M25 runoff ponds have not been maintained for decades | New Civil Engineer
www.newcivilengineer.com Mapped: Aerial imagery shows M25 runoff ponds have not been maintained for decades | New Civil Engineer
This is despite guidance recommending they be cleared every 10 to 15 years and National Highways having “a statutory duty to ensure that discharges from
