Contractors on Monday began the process needed to shift traffic on the southbound bridge at the back gate.
The work will be finalized by Wednesday, according to a press release issued by Horry County.
The $121.7 million project, known as the back gate construction because of its proximity to the old back gate of the former Myrtle Beach Air Force Base, includes an overpass that eliminates the stoplight at the Farrow Parkway/S.C. 707 intersection, and keeps U.S. 17 Bypass traffic moving.
It is estimated that about 70,000 vehicles pass through that intersection daily during peak season.
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Ice storms last winter and a soggy spring and early summer delayed the opening of the 1,246-foot-long bridge from August to October.
The S.C. Department of Transportation has a clause built into the contract with Balfour Beatty that may cost the contractor additional money for being late.