Ohio State Route 315
|Maintained by ODOT|
|Length:||22.48 mi (36.18 km)|
|Existed:||1933 – present|
|South end:||I-70 / I-71 in Columbus|
| I-670 in Columbus
I-270 in Columbus
|North end:||US 23 near Delaware|
State Route 315, or known locally as the Olentangy Freeway, is a north–south highway in central Ohio, mainly 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 near The Ohio State University campus.
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.
All exits are unnumbered.
||Columbus||0.0||0.0||I-70 / I-71||Mound-Sandusky Interchange|
|0.6||1.0||US 62 (Rich Street) / SR 3 (Town Street)||Split diamond interchange with one-way couplet|
|0.9||1.4||US 40 (West Broad Street)||Southbound exit and those on the on-ramp only; exit to West Broad Street from OH-315 southbound is prohibited|
|1.3||2.1||US 33 (Dublin Road)||Northbound exit and southbound entrance; part of Spring Sandusky Interchange|
|1.6||2.6||I-670||Northbound-westbound and eastbound-southbound movements handled by US 33, Spring Sandusky Interchange|
|1.9||3.1||Goodale Street||Southbound exit and entrance handled by Olentangy River Road|
|3.5||5.6||King Avenue / Medical Center Drive||Northbound exit and southbound entrance; access to Ohio State University Medical Center|
|3.5||5.6||Olentangy River Road / Kinnear Road||Southbound exit and northbound entrance; southbound access to King Avenue, Fifth Avenue, and Third Avenue|
|4.3||6.9||Lane Avenue||Access to Ohio State University, Ohio Stadium, and Upper Arlington|
|6.2||10.0||North Broadway / Olentangy River Road||Access to Riverside Methodist Hospital|
|7.8||12.6||Henderson Road / Olentangy River Road|
|Worthington||10.4||16.7||SR 161 (Dublin-Granville Road)|
|Sharon Township||12.0||19.3||I-270||Modified cloverleaf interchange|
|12.3||19.8||Begin at-grade highway northbound and limited access highway southbound|
||Powell||15.5||24.9||SR 750 (Powell Road)|
|Delaware||22.48||36.18||US 23||Northern terminus of OH 315.|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi
State Route 315C
|State Route 315C|
|Length:||1.09 mi (1.75 km)|
An unsigned State Route 315C exists which begins on the I-670 westbound ramp to Neil Ave, follows Neil south to the Goodale-Neil Connector and Goodale Ave, then up Olentangy River Rd and onto the ramp to SR 315 southbound, where it ends. It is not clear from the Straight Line Diagram whether SR 315C exists in both directions, or westbound only.
- Ohio Department of Transportation. "Technical Services Straight Line Diagrams".
- Google Inc. Google Maps – Olentangy Freeway (Map). Cartography by Google, Inc. https://maps.google.com/maps?q=Olentangy+Freeway,+Columbus,+OH&hl=en&ll=40.047066,-82.902145&spn=0.28542,0.676346&sll=40.054687,-83.055611&sspn=0.143746,0.468979&oq=Olentangy+Free&hnear=Olentangy+Fwy,+Columbus,+Franklin,+Ohio&t=m&z=11. Retrieved 17 August 2013.
- "Ohio Revised Code 5533.90".
- Ohio Department of Transportation. "Ohio State Route 315 - Straight Line Diagram - Franklin County".
- Ohio Department of Transportation. "Ohio State Route 315 - Straight Line Diagram - Delaware County".
- Ohio Department of Transportation. "Route 315C Straight Line Diagram".