Sierra Construction

Project details

Integrated Road Investment Program

Integrated Road Investment Program- Tranche 2-/ Rehabilitation / Improvement of 71 Km of Rural Roads in Kandy District – Contract 2 Including Performance Based Maintenance for Three Years.
Scope Scope Scope

This road package covered five divisional secretarial divisions in Kandy district, i.e. yatinuwara, gangaihala korale, pasbage korale, udapalatha and udunuwara.


Total road length of this package was 70.85 km and it had 7 PRDA roads and other 10 roads are Pradeshiya Sabha roads.

Almost all road in the package is very narrow, width of the roads are around 3 m and the road terrain was mountainous.  The existing road surfaces were extremely damaged.

Rehabilitation/Improvement works were consisted of strengthening base of existing pavement where necessary, widening of the carriageway to the required standard, rebuilding the shoulders to the required width with soft shoulder on either side, followed by asphalt concrete surfacing to the carriageway.

Longitudinal drainage works involved the provision/rehabilitation of earth drains and unlined longitudinal drains. Transvers drainage improvements involved the extension and replacement of existing culverts.

The works also involved provision of safety measures such as roundabouts, center islands, guard rails, parking bays, road marking and road signs.

Roadway excavation – 42,432 Cu.m

Embankment – 20,818 Cu.m

Sub base – 14,239 Cu.m

Aggregate Base Course –  37,130 Cu.m

Asphalt Concrete – 25,850 Tonne

Concrete Work – 6,538 Cu.m

  • Client: Road Development Authority
  • Location: Mahaoya, Sri Lanka