Ohio State Route 257

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State Route 257 marker

State Route 257
General Thaddeus Kosciusko Memorial Highway
Route information
Maintained by ODOT
Length: 26.19 mi[3][4][5] (42.15 km)
Existed: 1926[1][2] – present
Major junctions
South end: US 33 / SR 161 in Dublin
North end: SR 47 in Prospect
Counties: Franklin, Delaware, Marion
Highway system
SR 256 SR 258

State Route 257 (SR 257, OH 257) is a 26.19-mile (42.15 km) north - south state highway in the central portion of the U.S. state of Ohio. The highway's southern terminus is in the northwestern Columbus suburb of Dublin at a signalized intersection with U.S. Route 33 (US 33) and SR 161. This mainly two-lane highway follows the eastern side of the Scioto River from Dublin to its junction with US 42. After crossing over the river with the U.S. highway, SR 257 parallels the river's western bank. SR 257 has its northern terminus at a T-intersection with SR 47 on the western village limits of Prospect. SR 257 was created in 1926, and extended in 1935 and 1937.

Route description[edit]

Traffic volume on State Route 257
County Log Point Volume
0.06 17,100
0.842 24,450
0.112 18,470
1.25 15,870
3.194 6,970
7.75 2,530
8.478 8,110
12.728 6,180
14.35 1,560
22.618 720
0.486 720
  • County log points reset at county line
  • Volume: AADT
  • Source: [6]

Along its way, SR 257 travels primarily north through northwestern Franklin County, western Delaware County and the extreme southern part of Marion County, following the Scioto River for most of the way.[7] There are no segments of SR 257 that are included within the National Highway System (NHS). The NHS is a network of highways identified as being most important for the economy, mobility and defense of the nation.[8]

SR 257 starts at the intersection of US 33 / SR 161. The route moves north intersecting with Emerald Parkway, which is currently being built eastward. SR 257 continues north to Hard Road, and the entrance to Thaddeus Kosciuszko Park (about 200 yards up Hard Rd.) After crossing the Franklin–Delaware county line, the next major junction is with SR 750 at the Columbus Zoo and Aquarium and the O'Shaughnessy Dam. From here to US 42 the route follows the eastern bank of O'Shaughnessy Reservoir. The next intersection is Seldom Seen Road. Two miles later, SR 257 meets Home Road at a 4-way stop, which is currently being reconfigured into a traffic circle. Home Road provides access to SR 745 heading west and to Sawmill Parkway and Liberty Rd heading east.[7]

SR 257 continues north to signaled intersection with US 42 and runs concurrently with US 42 for about 1 mile within Concord Township. The route travels southwest with US 42 across the Scioto River. At the signalized northern terminus of SR 745 the concurrency ends, as SR 257 turns north. SR 257 passes through the former communities of Bellpoint (Concord Township) and White Sulfur Springs Station (Scioto Township)[9] on the way to intersecting with US 36 about 3.5 miles (5.6 km) north of US 42. Continuing north, SR 257 crosses SR 37 at a flashing red light. After nine miles, the route crosses into Marion County prior to ending at OH 47 in Prospect, crossing minor roads within Thompson Township in between.[7]


The SR 257 designation was applied in 1926. Originally, the highway was routed along its present southernmost alignment along the eastern banks of the Scioto River between Dublin and its northeastern junction with US 42.[1][2]

In 1935, SR 257 was extended via a short concurrency with US 42 across the Scioto River, then north along its present alignment along the western side of the river to a new northern terminus at SR 37 west of Delaware.[10][11] Then, two years after its first northward extension, SR 257 was extended to the north again, this time to its present northern terminus at SR 47 in Prospect.[12][13]

SR 257 was designated the General Thaddeus Kosciusko Memorial Highway in December 1975.[14]

Major intersections[edit]

County Location Mile[3][4][5] km Destinations Notes
Franklin Dublin 0.00 0.00 US 33 / SR 161 Southern terminus at signalized intersection
Delaware Liberty Township 3.94 6.34 SR 750 east Signalized intersection marking western terminus of SR 750
Concord Township 10.72 17.25 US 42 north Signalized intersection marking northeastern end of the US 42 concurrency
11.29 18.17 US 42 south / SR 745 south Signalized intersection marking southwestern end of the US 42 concurrency; northern terminus of SR 745
Scioto Township 14.75 23.74 US 36
17.18 27.65 SR 37
Marion Prospect 26.19 42.15 SR 47 Northern terminus at T-intersection
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


Route map: Google / Bing

  1. ^ a b Ohio Department of Highways and Public Works (August 1925) (MrSID). Map of Ohio Showing State Routes (Map). Cartography by ODHPW. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1925a.sid. Retrieved 2011-04-28.
  2. ^ a b Ohio Department of Highways and Public Works (August 1926) (MrSID). Map of Ohio Showing State Routes (Map). Cartography by ODHPW. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1926a.sid. Retrieved 2011-04-28.
  3. ^ a b Ohio Department of Transportation. "Technical Services Straight Line Diagrams: SR 257, Franklin County". Retrieved 2006-12-06. 
  4. ^ a b Ohio Department of Transportation. "Technical Services Straight Line Diagrams: SR 257, Delaware County". Retrieved 2006-12-06. 
  5. ^ a b Ohio Department of Transportation. "Technical Services Straight Line Diagrams: SR 257, Marion County". Retrieved 2006-12-06. 
  6. ^ Staff. "Transportation Information Mapping System". Ohio Department of Transportation. Retrieved 2013-08-17. 
  7. ^ a b c Google, Inc. "Ohio State Route 257". Google Maps (Map). Cartography by Google, Inc. https://maps.google.com/maps?saddr=Riverside+Dr&daddr=Riverside+Dr+to:Riverside+Dr+to:OH-257+N%2FRiverside+Dr+to:OH-257+N%2FRiverside+Dr+to:OH-257%2FRiverside+Dr+to:OH-257+N%2FRiverside+Dr+to:OH-257+N%2FUS-42+S+to:OH-257+N+to:OH-257+N+to:Prospect-Dublin+Rd&hl=en&ll=40.099018,-83.105693&spn=0.025934,0.055747&sll=40.450637,-83.192891&sspn=0.003225,0.006968&geocode=FRffYwIdhdgL-w%3BFbAGZAIdp9ML-w%3BFYUyZAIdz9gL-w%3BFQ-zZAId6aUL-w%3BFQ_4ZAId55gL-w%3BFfhcZQId5HEL-w%3BFeMYZgIdSEwL-w%3BFQYCZgIdqy4L-w%3BFQvAZgIdaxEL-w%3BFQVCZwIdjtkK-w%3BFT83aQIdZJAK-w&mra=mi&mrsp=10&sz=18&t=m&z=15. Retrieved 2013-08-18.
  8. ^ Federal Highway Administration (December 2003) (PDF). National Highway System: Ohio (Map). http://www.fhwa.dot.gov/planning/nhs/maps/oh/oh_Ohio.pdf. Retrieved 2011-04-28.
  9. ^ http://www.forgottenoh.com/GhostTowns/delawareco.html |Ghost Towns of Delaware County| Accessed on 23 Apr 2014
  10. ^ Ohio Department of Highways (1934) (MrSID). Map of Ohio Showing State Highway System (Map). Cartography by ODOH. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1934a.sid. Retrieved 2011-04-28.
  11. ^ Ohio Department of Highways (1935) (MrSID). Official Ohio Highway Map (Map). Cartography by ODOH. http://www.dot.state.oh.us/Divisions/TransSysDev/Innovation/prod_services/Documents/StateMaps/otm1935a.sid. Retrieved 2011-04-28.
  12. ^ 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 2011-04-28.
  13. ^ 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 2011-04-28.
  14. ^ "Ohio Administrative Code: ORC 5533.29 General Thaddeus Kosciusko memorial highway.". Retrieved 2011-09-19.