CBS 3: How to track SS United States as it moves out of Philadelphia after nearly 30 years

After months of delays, the historic SS United States ocean liner finally moved out of Philadelphia today on a new voyage as it prepares to become the world's largest artificial reef off the Florida coast in the Gulf of Mexico.

The SS United States has been docked at a South Philadelphia pier for nearly 30 years. The ship moved for the first time in 28 years from Pier 82 to Pier 80 on Friday at high tide as part one of the moving operation began. Today, the nation's sole surviving ocean liner left the Delaware River to be towed on a two-week journey to Mobile, Alabama, where reefing preparations will be made.

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