{{Short description|State highway in northeastern Ohio, US}} {{Use American English|date=May 2025}} {{Use mdy dates|date=January 2025}} {{Infobox road |state=OH |type=SR |route=45 |map={{maplink-road}} |map_custom=yes |map_notes=Route of SR 45 highlighted in red |length_mi=96.56 |length_ref=<ref name=DESTAPE>{{cite web |url=https://www.transportation.ohio.gov/wps/portal/gov/odot/programs/technical-services/transportation-information-management/02-rt-02n-1 |title=DESTAPE |publisher=Ohio Department of Transportation |date=November 2, 2020 |access-date=May 18, 2021}} *[https://www.transportation.ohio.gov/static/Programs/TechServices/RT-02N/RT-02-COL.pdf Columbiana County] *[https://www.transportation.ohio.gov/static/Programs/TechServices/RT-02N/RT-02-MAH.pdf Mahoning County] *[https://www.transportation.ohio.gov/static/Programs/TechServices/RT-02N/RT-02-TRU.pdf Trumbull County] *[https://www.transportation.ohio.gov/static/Programs/TechServices/RT-02N/RT-02-ATB.pdf Ashtabula County]</ref> |established=1924 |direction_a=South |terminus_a={{jct|state=OH|SR|7|SR|39}} in Wellsville |junction={{plainlist| *{{jct|state=OH|US|30}} near Lisbon *{{jct|state=OH|US|62|SR|14}} near Salem *{{jct|state=OH|US|224}} in Ellsworth *{{jct|state=OH|US|422}} in Warren *{{jct|state=OH|US|322}} in Orwell *{{jct|state=OH|US|6}} in Rome *{{jct|state=OH|I|90}} near Ashtabula *{{jct|state=OH|US|20}} near Ashtabula }} |direction_b=North |terminus_b={{jct|state=OH|SR|531}} near Ashtabula |counties=Columbiana, Mahoning, Trumbull, Ashtabula |previous_type=SR |previous_route=44 |next_type=SR |next_route=46 }}
'''State Route 45''' ('''SR 45''') is a north–south state highway in the northeastern portion of the U.S. state of Ohio. Its southern terminus is at the State Route 7/State Route 39 concurrency in Wellsville, and its northern terminus is at State Route 531 about {{convert|3|mi|km|spell=in}} west of Ashtabula.
==History== {{prose|section|date=May 2021}} left|thumb|SR 45 northbound in Bristolville [[File:Ohio State Route 45 in Rock Creek, Ashtabula 2016.jpg|thumb|right|Route 45 in Rock Creek, Ashtabula]] *'''1924''' – Original route established;<ref name=system>[http://pages.prodigy.net/john.simpson/highways/expls.html Explanation of the Ohio State Highway System] (The Unofficial Ohio State Highways Web Site) by John Simpson{{unreliable source?|failed=y|date=August 2014}} {{webarchive |url=https://web.archive.org/web/20060523023100/http://pages.prodigy.net/john.simpson/highways/expls.html |date=May 23, 2006 }}</ref> originally routed from Lisbon to Geneva along its current route from Lisbon to 1½ miles south of Salem, from 1½ miles south of Salem to 1½ miles north of Salem on a currently unnumbered road, along its current route from 1½ miles north of Salem to North Bloomfield, from North Bloomfield to Windsor on a currently unnumbered road, and from Windsor to Geneva along current State Route 534.<ref name=ohhwys>[http://pages.prodigy.net/john.simpson/highways/045.html Route 45] (The Unofficial Ohio State Highways Web Site) by John Simpson{{unreliable source?|failed=y|date=August 2014}} {{webarchive |url=https://web.archive.org/web/20041221101309/http://pages.prodigy.net/john.simpson/highways/045.html |date=December 21, 2004 }}</ref> *'''1931''' – By this time, rerouted from North Bloomfield to Orwell along a previously unnumbered road, and from Orwell to Windsor along U.S. Route 322; original routing from North Bloomfield to Windsor decertified.<ref name=ohhwys/> *'''1932''' – Extended to Wellsville along the former alignment of State Route 153 from Wellsville to West Point, and along U.S. Route 30 (formerly State Route 5 before 1926) from West Point to Lisbon.<ref name=ohhwys/> *'''1938''' – Rerouted north from Orwell to its current northern terminus; former alignment from Windsor to Geneva certified as State Route 534.<ref name=ohhwys/> *'''1976''' – Routed around Salem on newly completed bypass (southwest portion completed in 1972; bypass certified as State Route 45B in 1974).<ref name=ohhwys/> *'''1997''' – From Lisbon to State Route 558 upgraded to divided highway.<ref name=ohhwys/>
==Major intersections== {{OHinttop|length_ref=<ref name=DESTAPE/>}} {{OHint |county=Columbiana |cspan=12 |location=Wellsville |mile=0.00 |mile2=0.47 |road={{jct|state=OH|SR|7|SR|39|city1=East Liverpool|city2=Steubenville}} |notes=Interchange }} {{OHint |type=concur |township=Madison |ctdab=Columbiana |lspan=2 |mile=8.95 |road={{jct|state=OH|US|30|dir1=east|to2=yes|SR|11|city1=East Liverpool}} |notes=Southern end of US 30 concurrency }} {{OHint |mile=9.78 |road={{jct|state=OH|SR|518|dir1=west|location1=West Point|city2=Gavers}} |notes=Eastern terminus of SR 518 }} {{OHint |location=Lisbon |lspan=3 |mile=14.80 |road={{jct|state=OH|SR|154|dir1=east|city1=Rogers|name1=East Lincoln Way|to2=yes|SR|11}} |notes=Southern end of SR 154 concurrency }} {{OHint |type=concur |mile=15.34 |road={{jct|state=OH|US|30|dir1=west|name1=West Lincoln Way|SR|164|dir2=south|name2=South Market Street|SR|154|dir3=ends|SR|517|dir4=begins}} |notes=Northern end of US 30 concurrency; western terminus of SR 154, northern end of SR 154 concurrency; southern end of SR 164 concurrency; western terminus of SR 517, southern end of SR 517 concurrency }} {{OHint |type=concur |mile=15.69 |road={{jct|state=OH|SR|164|dir1=north|SR|517|dir2=east|name2=Jerome Street|city1=Columbiana}} |notes=Northern end of SR 164 concurrency; western terminus of SR 517 }} {{OHint |township=Salem |ctdab=Columbiana |mile=20.73 |road={{jct|state=OH|SR|558|dir1=east|city1=Franklin Square|CR|411|county2=Columbiana|name2=Teegarden Road}} |notes=Western terminus of SR 558 }} {{OHint |township=Perry |ctdab=Columbiana |lspan=5 |mile=25.68 |road={{jct|state=OH|SR|9|city1=Hanoverton|city2=Salem|extra=Hospital}} }} {{OHint |type=concur |mile=26.91 |road={{jct|state=OH|US|62|dir1=west|SR|173|dir2=west|name2=West State Street|city1=Alliance|city2=Salem|extra=Hospital}} |notes=Southern end of US 62 concurrency }} {{OHint |mile=27.32 |road={{jct|state=OH|SR|14|city1=Ravenna|city2=Salem|name1=Benton Road}} }} {{OHint |mile=28.79 |mile2=29.09 |road={{jct|state=OH|SR|14T|dir1=west|noshield1=yes|to2=yes|SR|14|city1=}} |notes=Interchange; eastern terminus of SR 14T }} {{OHint |type=concur |mile=29.34 |road={{jct|state=OH|US|62|dir1=east|road|County Road 410A|to2=yes|SR|9|extra=hospital|city=Salem}} |notes=Northern end of US 62 concurrency }} {{OHint |county=Mahoning |cspan=2 |township1=Goshen |township2=Green |ctdab=Mahoning |mile=30.60 |road={{jct|state=OH|SR|165|city1=Beloit|city2=North Lima}} }} {{OHint |township=Ellsworth |ctdab=Mahoning |mile=36.15 |road={{jct|state=OH|US|224|city1=Canfield|city2=Barberton}} }} {{OHint |county=Trumbull |cspan=5 |location=Warren |mile=51.08 |road={{jct|state=OH|US|422|name1=West Market Street|to2=yes|SR|169}} }} {{OHint |township=Champion |ctdab=Trumbull |lspan=2 |mile=54.24 |mile2=54.40 |road={{jct|state=OH|SR|5|SR|82|location1=Sharon, PA|city2=Ravenna}} |notes=Interchange }} {{OHint |mile=56.66 |road={{jct|state=OH|SR|305|city1=Southington|city2=Cortland}} }} {{OHint |township=Bristol |ctdab=Trumbull |mile=62.27 |road={{jct|state=OH|SR|88|city1=West Farmington|city2=}} }} {{OHint |township=Bloomfield |ctdab=Trumbull |mile=67.41 |road={{jct|state=OH|SR|87|city1=Middlefield|city2=Kinsman}} }} {{OHint |county=Ashtabula |cspan=7 |location=Orwell |mile=72.47 |road={{jct|state=OH|US|322|name1=Main Street}} }} {{OHint |township=Rome |ctdab=Ashtabula |mile=77.32 |road={{jct|state=OH|US|6|city1=Andover|city2=Chardon}} }} {{OHint |township=Austinburg |ctdab=Ashtabula |lspan=2 |mile=88.99 |road={{jct|state=OH|SR|307|city1=Jefferson}} }} {{OHint |mile=89.96 |mile2=90.08 |road={{jct|state=OH|I|90|location1=Erie, PA|location2=Cleveland}} |notes=Exit 223 (I-90) }} {{OHint |township=Saybrook |ctdab=Ashtabula |lspan=3 |mile=92.39 |road={{jct|state=OH|SR|84|name1=South Ridge Road W}} }} {{OHint |mile=93.42 |road={{jct|state=OH|US|20|city1=Geneva|city2=Ashtabula}} }} {{OHint |mile=96.56 |road={{jct|state=OH|SR|531|Tour|LECT|city1=Geneva-on-the-Lake|location2=Ashtabula Harbor}} }} {{OHintbtm|keys=concur}}
==References== {{Reflist}}
==External links== {{Attached KML|display=title,inline}} *{{commons category-inline}}
045 Category:Transportation in Columbiana County, Ohio Category:Transportation in Mahoning County, Ohio Category:Transportation in Trumbull County, Ohio Category:Transportation in Ashtabula County, Ohio