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State Route 315
Route information
Maintained by ODOT
Length	22.48 mi (36.18 km)
Existed	1933–present
Major junctions
South end	I-70 / I-71 in Columbus
Major intersections	US 22 / SR 3 in Columbus US 33 / US 40 in Columbus I-670 in Columbus I-270 in Worthington
North end	US 23 near Delaware
Location
Country	United States
State	Ohio
Counties	Franklin, Delaware
Highway system
Ohio State Highway System Interstate US State Scenic
← SR 314 → SR 316

State Route 315, known locally as the Olentangy Freeway, running almost parallel to Olentangy River Road for most of its length, is a north–south highway in central Ohio, in the Columbus metropolitan area. It may be seen abbreviated as SR 315, OH-315, or simply 315. Its southern terminus is at the south junction of I-70 and I-71 in Columbus, and its northern terminus is at US 23 near Delaware. It is a controlled access freeway from its southern terminus to I-270. The controlled access section carries two or three lanes in each direction, depending on the location. North of I-270, it becomes a two-lane road. It roughly follows the Olentangy River for about two-thirds of its length. The route passes through Ohio State University campus. The section between Interstate 670 and Interstate 70 is known as the West Innerbelt, and it is commonly referred to as such in traffic reports. The original name of this section was Sandusky Street.

Route description

Lawrence E. Hughes Memorial Highway

Running in a north and south direction within Franklin County, commencing at the point where that state route crosses over King Avenue and extending northward to the boundary of Franklin County and Delaware County.

Exit list

County	Location	mi	km	Exit	Destinations	Notes
Franklin	Columbus	0.00– 0.44	0.00– 0.71	—	I-70 / I-71 – Wheeling, Cleveland, Dayton	Mound-Sandusky Interchange; I-70 exit 99B; I-71 exit 106B.
		0.51– 0.79	0.82– 1.27	1A	US 62 (Rich Street) / SR 3 (Town Street)	Split diamond interchange with one-way couplet
		0.92	1.48	1B	US 40 (West Broad Street)	Southbound exit from I-670/US 33 ramps only; exit to West Broad Street from OH-315 southbound is prohibited.
		1.21– 1.70	1.95– 2.74	1C	US 33 (Dublin Road)	Northbound exit and southbound entrance; part of Spring Sandusky Interchange
		1.29– 1.66	2.08– 2.67	1D	I-670 (John Glenn Columbus International Airport)	Northbound-westbound and eastbound-southbound movements handled by US 33, Spring Sandusky Interchange; I-670 exit 2B eastbound to 315 northbound, 2A-B westbound.
		1.97– 2.59	3.17– 4.17	2	SR 315C (Goodale Street) / CR 9 (Olentangy River Road) to I-670
		3.18– 3.26	5.12– 5.25	3	Medical Center Drive/King Avenue	Northbound exit and southbound entrance; access to Ohio State University Wexner Medical Center
		3.69– 3.81	5.94– 6.13	3	CR 9 (Olentangy River Road) / CR 176 (Kinnear Road)	Southbound exit and northbound entrance; southbound access to King Avenue, Fifth Avenue, and Third Avenue
		4.20– 4.49	6.76– 7.23	4	CR 59 (Lane Avenue)	Access to Ohio State University, Ohio Stadium, Schottenstein Center and Upper Arlington
		5.03– 5.35	8.10– 8.61	5	CR 52M (Ackerman Road)
		5.69– 6.52	9.16– 10.49	6	CR 523 (West North Broadway) / CR 9 (Olentangy River Road)	Signed as exits 6A (west) and 6B (Olentangy River Road) northbound. Access to Riverside Methodist Hospital.
		7.61– 8.11	12.25– 13.05	7	CR 55 (Henderson Road) / CR 9 (Olentangy River Road)
		8.35– 8.83	13.44– 14.21	8	CR 67 (Bethel Road)
	Worthington	10.22– 10.59	16.45– 17.04	10	SR 161 (Dublin–Granville Road)
	Sharon Township	11.66– 12.28	18.76– 19.76	12	I-270 (Jack Nicklaus Freeway)	I-270 exits 22A-B; Modified cloverleaf interchange.
		12.28	19.76	Northern end of freeway
Delaware	Liberty Township	15.22	24.49		SR 750 (Powell Road)
	Delaware Township	22.48	36.18		US 23 (Columbus Pike)	Northern terminus of SR 315
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access

State Route 315C

An unsigned State Route 315C exists which begins on the Interstate 670 westbound ramp to Neil Avenue, follows Neil south to the Goodale-Neil Connector and Goodale Avenue, then up Olentangy River Road and onto the ramp to State Route 315 southbound, where it ends. It is clear from the Straight Line Diagram that SR 315C exists westbound only.

References

1. Ohio Department of Transportation. "Technical Services Straight Line Diagrams".
2. "Route 315 Is Included In State Road System". Columbus Evening Dispatch. Columbus, Ohio. August 9, 1933. p. 6 – via NewsBank.
3. "Olentangy Freeway" (Map). Google Maps. Retrieved 17 August 2013.
4. "Ohio Revised Code 5533.90".
5. Ohio Department of Transportation. "Ohio State Route 315 - Straight Line Diagram - Franklin County" (PDF).
6. Ohio Department of Transportation. "Ohio State Route 315 - Straight Line Diagram - Delaware County" (PDF).
7. ^ Ohio Department of Transportation. "Route 315C Straight Line Diagram" (PDF).

External links

• Media related to Ohio State Route 315 at Wikimedia Commons

• State highways in Ohio
• Transportation in Columbus, Ohio
• Transportation in Franklin County, Ohio