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Cornerstone Group · Civil & Infrastructure
Our Work

Project
Portfolio

A selection of our most significant completed and ongoing projects — spanning roads, bridges, water utilities, and civil construction.

240+ Projects Completed
LKR 45B+ Total Project Value
9 Provinces
35+ Years Experience

Project Portfolio

Northern Highway Phase III — Road & Highway
Road & Highway
Featured

Northern Highway Phase III

Location Vavuniya – Kilinochchi
Value LKR 8.4B
Timeline 2023 – 2026 (Ongoing)
Scale 112 km

Client: Road Development Authority

Mahaweli River Bridge (Phase II) — Bridge Engineering
Bridge Engineering
Featured

Mahaweli River Bridge (Phase II)

Location Kandy District
Value LKR 3.8B
Timeline 2021 – 2023
Scale 420 m span

Client: Ministry of Highways

A1 Expressway Widening — Road & Highway
Road & Highway

A1 Expressway Widening

Location Colombo – Kandy Corridor
Value LKR 6.2B
Timeline 2020 – 2022
Scale 72 km

Client: Road Development Authority

Kelani Valley Water Scheme — Water & Utilities
Water & Utilities

Kelani Valley Water Scheme

Location Western Province
Value LKR 4.5B
Timeline 2022 – 2024
Scale 220 km pipeline

Client: NWS&DB

Hambantota Port Access Road — Road & Highway
Road & Highway

Hambantota Port Access Road

Location Hambantota District
Value LKR 2.1B
Timeline 2019 – 2021
Scale 28 km

Client: Sri Lanka Ports Authority

Colombo Port City Utilities — Utilities
Utilities

Colombo Port City Utilities

Location Colombo 01
Value LKR 1.9B
Timeline 2022 – 2023
Scale 5.6 km²

Client: CHEC Port City Colombo (Pvt) Ltd

Deduru Oya Bypass Bridge — Bridge Engineering
Bridge Engineering

Deduru Oya Bypass Bridge

Location Kurunegala District
Value LKR 980M
Timeline 2018 – 2020
Scale 280 m span

Client: Road Development Authority

Katunayake Expressway Extension — Road & Highway
Road & Highway

Katunayake Expressway Extension

Location Western Province
Value LKR 3.2B
Timeline 2017 – 2019
Scale 24 km

Client: Road Development Authority

Galle Wastewater Treatment — Water & Utilities
Water & Utilities

Galle Wastewater Treatment

Location Galle District
Value LKR 2.8B
Timeline 2016 – 2018
Scale 35,000 m³/day capacity

Client: NWS&DB / World Bank

Southern Expressway Section E — Road & Highway
Road & Highway

Southern Expressway Section E

Location Matara – Hambantota
Value LKR 5.6B
Timeline 2014 – 2017
Scale 42 km

Client: Road Development Authority

Ratnapura Landslide Retaining Structures — Civil Construction
Civil Construction

Ratnapura Landslide Retaining Structures

Location Sabaragamuwa Province
Value LKR 640M
Timeline 2020 – 2021
Scale 18 structures

Client: NBRO / Ministry of Disaster Management

Trincomalee Harbour Road — Road & Highway
Road & Highway

Trincomalee Harbour Road

Location Trincomalee District
Value LKR 1.1B
Timeline 2021 – 2022
Scale 15 km

Client: Ministry of Urban Development

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