Western Australia is set to pour $26.9 billion into infrastructure projects over the next four years as the state beefs up spending on construction of major road and rail services.

But the budget has been attacked by both business groups and the state opposition, both of whom accuse the government of failing to tackle the state’s massive debt load. Unveiling the 2013/14 budget, the state government said it would spend $26.9 billion in infrastructure over the four year forward estimates…