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“The road from Ruga to Darke Khola where the soil is overflowing, grass has been planted and for a deeper soil stabilisation, brush layering has been carried out using branches of local plant species called ‘Bains’ plant in Nepali. Bio-engineering has been extremely good thanks to RAP3, and make the roads green”.
–Chankha Baduwal, Bama Gaira LRUC, Chairperson
Bio-engineering work has been carried out in an area of 7316.40 square metres where full widening of the Mugu Humla Link Road section has been completed. Bio-engineering works are required for the protection and stabilization of slopes. The plants provide the functions of catching debris, armouring the surface, reinforcing the soil, anchoring the surface layer, supporting the slope, and supporting successful drainage. Similarly, they also enhance the aesthetics of green roads. Before commencing Bio-engineering work on the Rugha section, virtual training was given to field staff, attended by more than 30 local participants. Bio-engineering techniques like brush layering using branches of local plant species, covering 2929.80 running metres have been adopted. Also, in order to stabilize fresh soil cut-and-fill slopes, salimo grass was planted. The purpose of bio engineering work is to improve slope stability and prevent the erosion of cut and fill slopes along the MHLR alignment.