Ohio State Route 618

State Route 618
Route information
Maintained by ODOT
Length:	7.45 mi[3] (11.99 km)
Existed:	1937[1][2] – present
Major junctions
West end:	US 50 / SR 7 / SR 32 near Belpre
East end:	SR 7 in Belpre
Location
Counties:	Washington
Highway system
Ohio highways Interstates • U.S. Routes • State Routes ← SR 617 SR 619 →

State Route 618 (SR 618, OH 618) is a 7.45-mile (11.99 km) long east–west state highway in the southeastern quadrant of the U.S. state of Ohio. The western terminus of SR 618 is at an interchange with the triplex of U.S. Route 50 (US 50), SR 7 and SR 32 about 3.25 miles (5.23 km) west of Belpre. Its eastern terminus is in northern Belpre at an interchange with SR 7.

Route description

All of SR 618 runs through the southwestern portion of Washington County. This highway is not included as a part of the National Highway System (NHS). The NHS is a system of routes deemed to be most important for the economy, mobility and defense of the country.^[4]

History

SR 618 was applied in 1937. The highway was originally routed along what is presently SR 7 and SR 32 and, in part, US 50, from the point that marks the western terminus of SR 618 into Belpre. Meanwhile, what is presently designated as SR 618 was the routing of US 50 and SR 7 at the time.^[1][2]

In 1965, SR 618 and US 50/SR 7 switched alignments. Consequently, SR 618 was routed onto its present alignment, while the duplex of US 50 and SR 7 was moved onto the former alignment of SR 618, which was widened into a four-lane divided highway simultaneous to the alignment swap.^[5][6]

Major intersections

The entire route is in Washington County.

Location	Mile[3]	Destinations	Notes
Belpre Township	0.00	US 50 SR 7 SR 32	Western terminus at partial interchange
	1.41	SR 339 north	Southern terminus of SR 339
Belpre	6.23	SR 32 east	Signalized intersection marking southern split of SR 32/SR 618 duplex; SR 32 joins from the southeast
	7.00	SR 32 west	Signalized intersection marking northern split of SR 32/SR 618 duplex; SR 32 departs to the west
	7.45	SR 7	Eastern terminus at partial interchange
1.000 mi = 1.609 km; 1.000 km = 0.621 mi      Concurrency terminus •      Closed/Former •      Incomplete access •      Unopened

References

	Ohio portal
	U.S. Roads portal

1. ^ ^{a b} Ohio Department of Highways (1936) (MrSID). Official Ohio Highway Map (Map). Cartography by ODOH. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1936a.sid. Retrieved 2011-06-17. 
2. ^ ^{a b} Ohio Department of Highways (1937) (MrSID). Official Ohio Highway Map (Map). Cartography by ODOH. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1937a.sid. Retrieved 2011-06-17. 
3. ^ ^{a b} Ohio Department of Transportation. "Technical Services Straight Line Diagrams: SR 618, Washington County". http://www.odotonline.org/techservapps/SLD/pdf_files/wassr0618r.pdf. Retrieved 2011-06-16. 
4. ^ Federal Highway Administration (December 2003) (PDF). National Highway System: Ohio (Map). http://www.fhwa.dot.gov/planning/nhs/maps/oh/oh_Ohio.pdf. Retrieved 2011-06-16. 
5. ^ Ohio Department of Highways (1964) (MrSID). Official Ohio Highway Map (Map). Cartography by ODOH. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1964ar.sid. Retrieved 2011-06-17. 
6. ^ Ohio Department of Highways (1965) (MrSID). Official Ohio Highway Map (Map). Cartography by ODOH. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1965a.sid. Retrieved 2011-06-17.