
KUALA LUMPUR, Malaysia — Just north of Malaysia's capital, lush forest gives way to dirt roads, where workers from Bangladesh and Indonesia rumble past in trucks emblazoned with four Cs — for China Communications Construction Co. They're blasting a more than 8-mile-long tunnel out of solid bedrock.
The tunnel represents a feat of engineering at the heart of the East Coast Rail Link, a project to lay down more than 400 miles of train tracks connecting shipping ports on Malaysia's east and west coasts, which is the country's priciest infrastructure project to date.