Nashik: Central Railway Plants Vetiver Grass On Kasara-Igatpuri Route To Curb Soil Erosion

Nashik is employing an innovative technique to combat soil erosion on the Kasara-Igatpuri railway route. Central Railway has begun planting vetiver grass, a bioengineering plant, over an area of 4,250 square meters as part of this initiative. This nature-based solution is being evaluated in conjunction with traditional engineering methods to enhance slope stability.

The Kasara-Igatpuri section, notorious for soil erosion, rapid water flow, falling rocks, and landslides during monsoons, presents significant challenges to railway safety.

Vetiver grass, known for its global usage as a bioengineering plant within the 'Vetiver System', plays a crucial role in securing soil. Its extensive root system grows up to three to four meters within 12 to 24 months, effectively binding and stabilising the soil. The grass also moderates surface water flow, traps sediment, and mitigates erosion on slopes. Such properties can potentially increase the soil's shear resistance by 30% to 40%.

The grass plantation along the mid-line of the Thakurwadi Cabin–Palsdari section of the Kasara-Igatpuri route is executed in contour lines on slopes and embankments. The deep roots of vetiver firmly anchor the soil, while the dense foliage reduces water speed, preventing gully formation. Additionally, the grass enhances water infiltration and traps sediment, thereby contributing to the long-term stability of slopes and safer railway operations.