Mississippi Highway 607

[6][7] The route then intersects I-10 at a diamond interchange, and state maintenance ends just north of it along with the formal designation of MS 607.

About two miles (3.2 km) later, MS 607 travels through an access gate and enters Stennis Space Center.

[5] State maintenance and the MS 607 designation resumes at the intersection of Texas Flat Road and the old alignment of US 11.

[3] The route continues traveling northwest as a divided highway through the forest,[5] entering Pearl River County and intersecting Asa McQueen Road.

[23][24] Meanwhile, the United States Army Corps of Engineers began buying land in Hancock County for the Mississippi Test Operations in 1962,[25] which later became Stennis Space Center.

[31] One month later, MS 607 south of the Stennis Space Center was upgraded to a four-lane divided highway,[32] after it was proposed in 1969.

[33] A project to widen MS 607 from Texas Flat Road to I-59 began in 2013,[34] and construction continued through 2015.

A big green sign on the left side of the four-lane Interstate 59. The sign depicts the shields of Mississippi Highway 607 and U.S. Route 90. Highway 607 has a white circular shield with the number in black text. The destinations listed on the sign are Nicholson and the John C. Stennis Space Center. The exit is the first eastbound one in Mississippi, thus listed as Exit 1.
Exit sign on I-59 for MS 607 and US 11 near Nicholson