Sector | transportation- roads& highways, railways |
Funding Agency | GoN |
Project Location | Ilam |
Province | Koshi |
Project Started Date | 1 November 2021 |
Project Completion Date | 1 March 2023 |
Project Status | Completed Projects |
Clients | Quality Research and Development Centre (QRDC), Department of Roads |
Mechi Highway (H07) built in 1961 is a two-lane freeway in Eastern Nepal, spanning about 268 kilometers in length. The highway connects all the districts of Mechi zone. It runs from the VDC of Kechana in Jhapa district in the south to the remote north of Taplejung through the district of Ilam and Panchthar. It is the important route to connect Taplejung to Terai border. The hill slopes with its fragile geology, extreme high concentration of precipitation in a short time period, steep slopes and seasonal streams are physical constrains in maintenance of this highway. Every year the harsh monsoon rainfall causes enormous damages to many sectons of the Mechi Highway. Especially the settlement at Maikhola to Ilam hinders the smooth traffic for several days in a year.
Different preventing measures are adopted by Road Division Ilam to save highway from roadway settlement and Road side slope disaster such as construction of Gabion wall, retaining wall, plumb concrete and anchoring work at (ch 105+900 to 105+970, 106+400 to 106+500 & 106+200 to 106+300). But these also do not seem to be very effective. Longitudinal cracks, potholes, road settlements and undulations (Ch: 105+000~113+000) made smooth traffic movement impossible. Therefore, it became necessary to conduct further investigation to solve these problems.
The main objective of the study is to:
• Identify the causes of roadway settlement
• Identify the causes of Road side slope failure
• Provide detail design of mitigation measures including cost estimate