Mississippi Highway 15

Mississippi Highway 15 (MS 15) is a state highway in Mississippi. At almost 324 miles (521 km), it is the longest highway in the Mississippi Highway System. MS 15 is divided into two sections due to a large gap between Stone County and Perry County. The southern section begins at Interstate 10 (I-10) and I-110 in Biloxi and ends at a junction with MS 26 near Wiggins, and the northern section begins at a junction with U.S. Route 98 (US 98) near Beaumont and ends as a continuation as SR 125 near Walnut. It serves a total of 15 counties (Harrison, Stone, Perry, Jones, Jasper, Newton, Neshoba, Winston, Choctaw, Webster, Oktibbeha, Chickasaw, Pontotoc, Union, and Tippah).

Water flowing over Old Hwy 67 and Mississippi Highway 15 near their intersection in Harrison County on September 29, 1998 during the September 1998 flooding caused on the Tchoutacabouffa River by Hurricane Georges.

Mississippi Highway 15
Route information
Maintained by MDOT
Length	323.949 mi[1] (521.345 km)
Existed	1932–present
Southern segment
South end	I-10 / I-110 in D'Iberville
North end	MS 26 near Wiggins
Northern segment
South end	US 98 near Beaumont
Major intersections	I-59 / US 11 / US 84 in Laurel US 80 in Newton I-20 in Newton US 82 in Mathiston US 278 in Pontotoc I-22 / US 78 in New Albany US 72 in Walnut
North end	SR 125 near Walnut
Location
Country	United States
State	Mississippi
Counties	Harrison, Stone, Perry, Jones, Jasper, Newton, Neshoba, Winston, Choctaw, Webster, Oktibbeha, Chickasaw, Pontotoc, Union, Tippah
Highway system
Mississippi State Highway System Interstate US State
← MS 14 → MS 16

History

Prior to 1966, MS 15 was one continuous route through the entire state of Mississippi.^[2] The route formerly continued past I-10 and ran concurrent with I-110 to terminate at US 90.^{[citation needed]}

Major intersections

County	Location	mi[3]	km	Destinations	Notes
Harrison	D'Iberville	0.0	0.0	I-10 – Pascagoula, Mobile, Gulfport, New Orleans I-110 south – Biloxi	Southern terminus of southern segment; I-10 exits 46A-B; south end of MS 67 overlap; signed as exits 4A (east) and 4B (west); cloverleaf interchange.
		0.4	0.64	Sangani Boulevard / Promenade Parkway	Interchange
	​	2.5	4.0	MS 67 north – Hattiesburg	Interchange; north end of MS 67 overlap
Stone	Moore Crossing	32.8	52.8	MS 26 – Wiggins, Lucedale	Northern terminus of southern segment
Gap in route
Perry	​	32.8	52.8	US 98 / MS 198 begins – Lucedale, New Augusta	Southern terminus of northern segment; interchange; eastern terminus of Beaumont segment of MS 198; south end of MS 198 overlap
	Beaumont	34.6	55.7	MS 198 west – New Augusta	North end of MS 198 overlap
	Richton	47.3	76.1	MS 42 west – Hattiesburg	South end of MS 42 overlap
		47.7	76.8	MS 42 east – State Line	North end of MS 42 overlap
	​	66.3	106.7	George Boutwell Road (MS 536)
Jones	Laurel	74.1	119.3	I-59 north / US 84 east / Cook Avenue – Meridian, Waynesboro	South end of I-59 / US 84 overlap; MS 15 south follows exit 96B
		74.3	119.6	4th Avenue / Masonite Road	I-59 exit 96A
		74.8	120.4	Beacon Street	I-59 exit 95C
		75.6	121.7	I-59 south / 16th Avenue south – Hattiesburg, Hattiesburg-Laurel Regional Airport	North end of I-59 overlap; MS 15 north follows exit 95B
		76.4	123.0	US 84 west / 5th Street – Collins, Downtown Laurel, Veterans Memorial Museum	North end of US 84 overlap
	​	84.9	136.6	MS 537 south – Moss	Northern terminus of MS 537
Jasper	​	90.2	145.2	MS 533 south – Soso	Northern terminus of MS 533
	Bay Springs	99.3	159.8	MS 528 east – Heidelberg	Western terminus of MS 528
		99.4	160.0	MS 18 – Raleigh, Pachuta
Newton	​	121.1	194.9	MS 504 east – Hero	Western terminus of MS 504
	Newton	126.7	203.9	US 80 – Newton, Hickory, Mississippi Veterans Memorial Cemetery
		127.3	204.9	I-20 – Jackson, Meridian	I-20 exit 109
	Decatur	135.4	217.9	MS 503 south – Hickory	Northern terminus of MS 503
	Union	144.2	232.1	MS 494 east – Little Rock, Meridian	Western terminus of MS 494
		145.0	233.4	MS 492 – Sebastopol, House, Downtown Union
Neshoba	Good Hope	156.5	251.9	MS 485 south	Northern terminus of MS 485
	Philadelphia	158.4	254.9	MS 21 south to MS 488 – Sebastopol, Forest, Neshoba County Fairgrounds	South end of MS 21 overlap
		158.6	255.2	MS 16 west – Carthage, Casinos	South end of MS 16 overlap
		159.4	256.5	MS 16 east / MS 19 south / MS 21 north – Philadelphia, De Kalb, Meridian	North end of MS 16 / MS 21 overlap; south end of MS 19 overlap
		159.7	257.0	MS 885
		162.9	262.2	MS 19 north – Kosciusko, Airport	Interchange; north end of MS 19 overlap
Winston	Noxapater	177.1	285.0	MS 395 south / MS 490 east – Plattsburg, De Kalb, Nanih Waiya State Park	Northern terminus of MS 395; western terminus of MS 490
	Louisville	185.3	298.2	MS 25 south – Carthage	Interchange; south end of MS 25 overlap
		186.7	300.5	MS 14 – Kosciusko, Downtown Louisville, Macon
	​	189.0	304.2	MS 25 north / MS 758 west – Starkville, Mississippi State University	Interchange; north end of MS 25 overlap
Choctaw	​	198.7	319.8	FR 967 (Choctaw Lake Road) – Choctaw Lake Wildlife Management	Proposed MS 768
	Ackerman	201.4	324.1	W Main Street/MS 759 south	Northern terminus of unsigned MS 759
		202.0	325.1	MS 12 to MS 9 – Kosciusko, Starkville
	Williams	207.2	333.5	MS 790 west	Eastern terminus of MS 790
Webster	Mathiston	217.7	350.4	US 82 west / MS 403 north – Eupora, Winona, Wood Institute	South end of US 82 overlap
	​	218.5	351.6	US 82 east – Starkville, Columbus	Interchange; north end of US 82 overlap
	​	223.5	359.7	MS 50 east – West Point	South end of MS 50 overlap
	​	225.1	362.3	MS 50 west – Cumberland	North end of MS 50 overlap
	​	228.1	367.1	Natchez Trace Parkway	Interchange
	Mantee	233.1	375.1	MS 46 – Mantee, Montpelier
Chickasaw	Woodland	236.3	380.3	MS 340 west – Atlanta, Woodland	Eastern terminus of MS 340
	Houston	244.7	393.8	MS 8 to MS 389 – Grenada, Houston	Interchange
	​	251.3	404.4	MS 32 east – Okolona	South end of MS 32 overlap
	Old Houlka	255.9	411.8	MS 32 west – Houlka, Davis Lake	North end of MS 32 overlap
Pontotoc	Algoma	265.7	427.6	MS 772 west (Algoma Road) – Algoma, Tanglefoot Trail	Eastern terminus of MS 772
	Pontotoc	269.1	433.1	MS 41 – Downtown Pontotoc, Troy, Okolona
		271.1	436.3	To MS 9 south (Spur Road (MS 770)) – Oxford
		271.4	436.8	MS 9 / MS 338 – Oxford, Tupelo
		271.8	437.4	MS 336 – Tupelo, Airport
		273.9	440.8	US 278 / MS 6 to MS 9 – Oxford, truck to MS 9 north	Interchange
	Ecru	277.9	447.2	MS 346 west – Hurricane	Eastern terminus of MS 346
		278.6	448.4	MS 345 south – Ecru	Northern terminus of MS 345
Union	​	282.7	455.0	MS 762 west – Ingomar, Tanglefoot Trail	Eastern terminus of MS 762
	New Albany	287.0	461.9	I-22 / US 78 / MS 30 west – Memphis, Tupelo	Interchange; south end of MS 30 overlap; I-22 exit 64
		287.9	463.3	MS 178 – Downtown New Albany
		288.1	463.7	MS 348 east – Center, Ellistown	Western terminus of MS 348
		288.6	464.5	MS 30 east – Booneville, Union County Museum, Northeast Mississippi Community College	North end of MS 30 overlap
Tippah	Blue Mountain	301.2	484.7	MS 2 west to MS 368 – Hickory Flat	Eastern terminus of MS 2
	Ripley	307.7	495.2	MS 4 / MS 370 east to MS 2 – Booneville	South end of MS 370 overlap; Eastern terminus of MS 370
	​	315.7	508.1	MS 370 west – Ashland	North end of MS 370 overlap
	​	322.8	519.5	CR 302	Proposed MS 369
	​	323.0	519.8	Main Street (MS 777 north) - Downtown Walnut	Southern terminus of unsigned MS 777
	Walnut	323.7	520.9	MS 354 east (Commerce Street) – Walnut Business District, Chalybeate	Western terminus of MS 354
		324.1	521.6	US 72 – Memphis, Corinth
	​	327.2	526.6	SR 125 north – Middleton	Tennessee state line; northern terminus of northern segment
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus