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Project Overview
ESH Construction instructed our team to carry out a comprehensive site survey and removal of Japanese knotweed at a development site in Rotherham. The site, a demolished NCP car park adjacent to Royal Mail offices, was being prepared for a new residential development and an extended footpath along the River Don.
Removal method: Dig & Dump
Works Undertaken: July 2025
Challenge
The invasive knotweed was predominantly visible along the site boundary near the riverbank, with substantial growth pushing up through the tarmac in the former car park. This posed a serious risk to both the structural integrity of future developments and the surrounding ecosystem.
During our initial survey, our consultants identified active knotweed growth between the retaining wall and the riverbank – an area particularly vulnerable to further spread if left untreated.
Solution
Our contracts team undertook a full dig & dump excavation to completely remove the infested soil:
- Excavation of knotweed-infested soil: Carefully removed all knotweed-contaminated soil, focusing on high-risk areas between the retaining wall and riverbank.
- Asbestos management: Minor levels of asbestos waste was discovered during excavation. Our team handled this safely, following all relevant environmental and health regulations.
- Transportation & disposal: Contaminated soil was securely removed in lorry loads and disposed of at licensed facilities in compliance with waste management protocols.
Outcome
All remediation works were completed efficiently and within the agreed timescales, ensuring the construction schedule remained uninterrupted. Our thorough approach allowed ESH Construction to proceed with confidence, knowing the risks posed by both Japanese knotweed and asbestos had been effectively managed.
Key Achievements
- Removal of Japanese knotweed from key development areas
- Safe identification and management of asbestos waste
- Timely completion within project deadlines
- Full compliance with environmental regulations
- Ongoing management of areas requiring herbicide treatment
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