highway engineering in mountainous terrain

Mountain roads are typically associated with difficult ground access, numerous slope instability problems and shortages of good construction material. These conditions require carefully designed off-site drainage, erosion protection measures and identification of the best locally available materials.

As a result, design and construction of roads in this terrain requires special expertise in relation to:

• geological and geotechnical factors
• route alignment
• geometric design
• design of slope protection and stabilisation measures

Geotechnical considerations typically have a great influence on highway engineering in mountainous terrain since they can significantly affect the cost of constructing and maintaining roads in this difficult environment.

Roughton has expertise in a wide range of countries with various climatic and geological characteristics including; Nepal, Bhutan, Sri Lanka, Fiji, Ethiopia, Pakistan, Uganda, Papua New Guinea and Lesotho.

We offer specialist engineering services throughout the following phases of project development:

• Desk study and feasibility assessment
• Reconnaissance and alignment studies
• Field investigations and detailed design
• Construction supervision
• Post construction and maintenance