E03 expressway (Sri Lanka)

Interchange 3 → Kerawalapitiya - connect with Outer Circular Expressway Interchange 2 → Peliyagoda |direction_b=South

The Colombo–Katunayake Expressway is Sri Lanka's second E Class highway. The 25.8 km highway links the Sri Lankan capital Colombo with Bandaranaike International Airport, Katunayake and Negombo. Construction on the highway began in October 2009, and it was opened on 27 October 2013, by former president Mahinda Rajapaksa. The highway has three lanes each way from Colombo to Peliyagoda, and two lanes each way from Peliyagoda to Katunayake, with the width ranging from 26 to.

The total cost of the project was US $292 million. Exim Bank of China funded US$248.2 million of the total cost and the government of Sri Lanka spent US$45 million on the project.

The speed limit is 80 km/h for the first 8 km and 100 km/h for the rest of the road. The Expressway has 42 bridges and 88 culverts including a 480 metre long viaduct at Hunupitiya and an 800-metre viaduct at Katunayake. The opening of the highway has allowed people to travel between Colombo, the commercial capital of Sri Lanka, and Katunayake, the major international airport of Sri Lanka, within 15 minutes.

The E03 expressway links the capital Colombo with one of the major commercial hubs in the country and the major tourist destination, Negombo, within 20 minutes. The Sri Lanka Transport Board (SLTB) has also commenced a luxury bus service on the road, conducting services between Colombo and Negombo.