Peliyagoda – Puttalam Road (A003)

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Peliyagoda – Puttalam Road (A003)

Rehabilitation, Improvement and Maintenance of Peliyagoda – Puttalam Road (A003) (50+000 km to 63+000 km)

Peliyagoda – Puttalam Road (A003) is the main A-class road of the Road Development Authority (RDA) which connects Western province to the North Western province along the west coastal plate of the country. The Asian Development Bank (ADB) Funded integrated Road Investment Project (iRoad) project rehabilitates and improve the A003 road from Kochchikade Bridge to Chilaw 51km (38+000 to 89+000) as proper two-lane road along with the road structures and road furniture under 4 design and build contracts.

N S Associates designs the 50+000 km to 63+000 km section from Marawila to Ma-oya under the Consulting Engineers & Contractors (Private) Limited Marawila city limit is the main congest location of the section, which connects the other suburbs. Therefore, the town area improvement is critical to facilitate the local stakeholders. The land filling of the adjoining marshy lands has obstructed the natural drainage system causing water ponding in the carriageway. Similarly, there are two sections which are affected by the major flood. These require deep concern over hydrology and drainage detailing when carrying out the design works.

The rehabilitation and Improvement activities (the works) will include but not limited to the following:

  • Site Clearing and Excavation;
  • Road formation improvement;
  • Sub Base construction, Dense Graded Aggregate Base complete with Asphalt Concrete overlay;
  • Drainage construction / improvements;
  • Culvert rehabilitation/extension and construction;
  • Relocation of utilities
  • Provision of Facilities for the Engineer/Employer.

Performance Based Road Maintenance Works shall mainly consist of maintenance activities necessary for keeping the Road in compliance with specified Performance or Service Levels.


Marawila, Sri Lanka


2021 December – On going


Consulting Engineers & Contractors (Private) Limited

Services of the Company

All the Design Work of Highways including pavement designs and geometric designs. Hydrological Study for the Flood Prone Sections.

Designs of Road Structures including retaining walls, bridges and culverts.

Designs of road signs and lane marking including designs of road furniture.


Eng. Uditha Hiranya
Pavement Design Engineer

Eng. Sameera Priyanath
Senior Structural Engineer

Eng. Prabhath Ransara
Hydrological Specialist

Eng. Ruwan Thilanka
Highway Design Engineer

Eng. Dasun Tharaka
Highway Design Engineer

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Colombo – Kandy Road (A001)

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