NHAI suspends concessionaire and engineer from bidding after reinforced soil wall failure on NH-66 in Kerala
The National Highways Authority of India announced on 10 December 2025 action after a reinforced soil wall failed at Mylakkadu in Kollam district on NH-66, temporarily suspending the concessionaire and the independent engineer from bidding.
Summary
The National Highways Authority of India (NHAI) announced on 10 December 2025 action following the failure of a 9.4-metre reinforced soil (RS) wall at Mylakkadu in Kollam district, Kerala, on 5 December 2025, on the Kollam–Kadambattukonam stretch of NH-66. NHAI temporarily suspended the concessionaire and its promoters and the independent engineer from bidding, issued show-cause notices for debarment of up to three and two years respectively, and removed their site managers. NHAI also appointed 18 geotechnical agencies to carry out soil testing along NH-66.
Key facts
- Announced
- 10 December 2025
- Failure
- 5 December 2025, Mylakkadu, Kollam district
- Project
- Kollam–Kadambattukonam, NH-66
- Wall
- 9.4-metre reinforced soil wall
- Action
- Concessionaire and IE suspended from bidding; debarment notices
- Soil testing
- 18 geotechnical agencies along NH-66
Practice MCQs 2 questions
The reinforced soil wall failure that led to NHAI action announced on 10 December 2025 occurred on which National Highway in Kerala?
Show answer
Correct answer: B — NH-66
PIB 2201961: the failure occurred at Mylakkadu in Kollam district on the Kollam–Kadambattukonam project of NH-66.
In which district of Kerala is Mylakkadu, where a reinforced soil wall on NH-66 failed on 5 December 2025?
Show answer
Correct answer: C — Kollam
PIB 2201961: the failure occurred at Mylakkadu in Kollam district.