It heads west for a couple hundred feet before crossing a nearly 2.6-mile-long (4.2 km) bridge over Pascagoula Bay, which first curves northward for the majority of the span before curving eastward.

The highway now crosses onto the mainland for only a 0.1 miles (0.16 km) before coming to an end at an intersection with MS 617 (Jerry St. Pé Highway) at the northern end of the Port of Pascagoula.

[2] MS 619 was originally opened in 1989,[3] coinciding with the completion of the new Naval Station Pascagoula.

[4] While the base closed in 2006 (though has been converted to Coast Guard Station Pascagoula), the highway still exists and is open to traffic, serving as the only road access to Singing River Island.

[citation needed] The entire route is in Jackson County.