Mississippi Highway 309

Mississippi Highway 309
Route information
Maintained by MDOT
Length	26.052 mi (41.927 km)
Existed	1956–present
Major junctions
South end	MS 4 near Chulahoma
Major intersections	I-22 / US 78 in Byhalia
North end	Byhalia Road at the Tennessee state line
Location
Country	United States
State	Mississippi
Counties	Marshall
Highway system
Mississippi State Highway System Interstate US State
← MS 308 → MS 310

Mississippi Highway 309 (MS 309) is a two-lane, north–south highway in Marshall County. It runs from the Mississippi–Tennessee state line south through western Marshall County to its southern terminus at MS 4, just east of the community of Chulahoma.

Route description

MS 309's southern terminus is just east of the community of Chulahoma at MS 4. The highway travels north, entering the town of Byhalia and passing through a grade-separated interchange with Interstate 22 and U.S. Route 78. After leaving Byhalia, the highway crosses the Coldwater River before intersecting MS 302 at Barton. From here, the highway travels to its northern terminus at the Tennessee state line, where the road continues as Byhalia Road toward Collierville in Shelby County.

Major intersections

The entire route is in Marshall County.

Location	mi	km	Destinations	Notes
​	0.0	0.0	MS 4 – Senatobia, Holly Springs	Southern terminus
Byhalia	16.1– 16.3	25.9– 26.2	I-22 / US 78 – Tupelo, Memphis	I-22 exit 14
	17.2	27.7	MS 178 – Olive Branch, Holly Springs
​	18.6– 18.9	29.9– 30.4	I-269 / MS 304 – Tunica, Collierville	I-269 exit 18
​	23.5	37.8	MS 302 – Olive Branch, Corinth
​	25.9	41.7	South Byhalia Road - Collierville	Northern terminus; Tennessee state line
1.000 mi = 1.609 km; 1.000 km = 0.621 mi