The Sleemanabad water tunnel in Madhya Pradesh, one of the state's longest-delayed irrigation projects, has entered its final phase after nearly 17 years of construction. Chief Minister Mohan Yadav is scheduled to inspect the site in Katni district on Friday, 18 July 2025, as the project moves toward completion.

What the Project Covers

The 11.952-km tunnel, developed by the Narmada Valley Development Authority (NVDA) under the Bargi Diversion Project, is designed to carry Narmada river water through the Vindhya range into the Son river basin using gravity flow. Once fully operational, it is expected to create permanent irrigation potential for approximately 2.45 lakh hectares across nearly 1,450 villages in Jabalpur, Katni, Maihar, Satna, Rewa, and Panna districts.

Why It Took 17 Years

Approved in 2008 at an estimated cost of ₹799 crore, the project ran into severe geological obstacles almost immediately. Hard marble and limestone formations, underground cavities, and heavy water seepage repeatedly stalled progress, forcing cost escalation. The total expenditure has now risen to ₹1,610.47 crore — more than double the original estimate.

To overcome these challenges, specialised tunnelling equipment was deployed, including a German tunnel boring machine, along with chemical grouting and high-capacity dewatering systems. The tunnel also passes beneath populated areas, a national highway, and active railway tracks — adding further complexity to the engineering work.

Current Status and Remaining Work

According to a state government statement, 96.66 per cent of the physical work under the contract has been completed. The main tunnel and a 12.135-km open canal are already finished. Only 188 metres remain in a canal section being constructed through the cut-and-cover method.

'The project is now in its final stage and will play a crucial role in expanding irrigation facilities in the Vindhya and Mahakaushal regions,' Chief Minister Mohan Yadav said in the government statement.

Phased Irrigation Rollout

Irrigation potential for approximately 44,160 hectares has already been created under subsequent phases. The state government plans to extend coverage to an additional 87,433 hectares by December 2026, and to around 1.55 lakh hectares by December 2027. Full coverage of the 2.45 lakh hectare command area will follow completion of the entire canal distribution network.

'The state government has been closely monitoring the project so that its benefits reach farmers at the earliest,' Yadav added.

What This Means for the Region

The Vindhya and Mahakaushal regions have historically struggled with rain-fed agriculture and limited assured irrigation. This project, once fully commissioned, would mark a structural shift in water access for farmers across six districts. Notably, this is among the most expensive per-kilometre irrigation tunnels in Madhya Pradesh's recent infrastructure history, reflecting both the scale of the geological challenge and the cost of prolonged delays.

With CM Yadav's inspection expected to set a final completion timeline, the project's long-awaited commissioning could define a significant agricultural policy milestone for the state government.