A highway extension seems like a pretty simple thing.

But between growth anxiety, traffic woes and a whopping $725 million price tag, a 7-mile stretch of road between Citadel Mall and the end of the James Island connector is perhaps the most controversial road project Charleston has seen in recent years. It's been called "Charleston's biggest zombie project."

Further Reading:

• With I-526 extension moving forward once again, communities brace for impact
• Charleston County takes on risk in $725 million plan to extend I-526
• I-526 extension explained: The controversy, the cost and what it means for you