The scheme involved replacing a 1.6km stretch of bridge. Prior to retrofitting, the West Approach's upper and lower deck configuration had a single foundation system supporting both decks. Following the retrofit, each deck has an independent column and foundation support system.

The West Approach continued to carry some 280,000 vehicles a day during the project. "Not that long ago, people's eyes would glaze over when they heard the word 'infrastructure'. Now everyone understands that a state can prosper and soar economically only if it has the roads, bridges, tunnels, transit, ports and other projects that make our daily lives and daily business possible," said Schwarzenegger.