On September 6, 2024, noting the recent mishaps which have occurred in India during tunnel construction, MoRTH issued a circular stating that henceforth proposals for long tunnel projects (length greater than 1.5 (one point five) km) on national highways must be submitted to Director General (Road Development) and Special Secretary for technical review and obtaining expert advice from advisory panel. This has to be done before submitting the proposal for appraisal of standing finance committee/expenditure finance committee chaired by Secretary of Administrative Ministry/Public Investment Board/Public Private Partnership Appraisal Committee.
The proposal to be submitted before the Director General (Road Development) and Special Secretary must include details of geological/geotechnical studies, alignment report, design of tunnel including electro-mechanical works instrumentation and safety measures during construction and operations along with cost estimates.
Source: MoRTH circular dated September 6, 2024
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