Ohio State Route 430

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State Route 430

Route information
Maintained by ODOT
Length13.08 mi[1] (21.05 km)
Major junctions
West end SR 309 in Ontario
Major intersections US 42 in Mansfield
East end SR 603 near Mifflin
CountryUnited States
CountiesRichland, Ashland
Highway system
  • Ohio State Highway System
SR 424 SR 435
A view of Charles Mill Lake from the SR 430 bridge in Ashland County, looking north.

State Route 430 (SR 430, OH 430) is an east–west state highway in the northern portion of Ohio. The western terminus of State Route 430 is at an interchange with State Route 309 in Ontario. Its eastern terminus is at a T-intersection with State Route 603 just outside Mifflin.

Route description

This state highway runs through portions of Richland and Ashland Counties. No part of State Route 430 is included as a part of the National Highway System.[2]


State Route 430 follows part of what was previously US 30 through the Mansfield area. The section of SR 430 from its western terminus in Ontario at SR 309 to its split from US 42 in eastern Mansfield follows the original western end of US 30S, while the portion from US 42 to the eastern terminus at SR 603 just west of Mifflin was part of mainline US 30.[3] State Route 430 was designated circa 1960 after US 30 was rerouted to its current location in the northern parts of Mansfield and Ontario and the western terminus of US 30S was changed to the what is now the junction of US 30 and SR 309. No changes of major significance have taken place to SR 430 since its inception.[4][5]

Major intersections

RichlandOntario0.000.00 SR 309 (Park Avenue West) – Galion, MansfieldPartial interchange, no access from SR 309 westbound to SR 430 eastbound
SR 13 south (Mulberry Street)
US 42 south (Main Street)
Western end of southbound US 42 concurrency
SR 13 north (Diamond Street)
5.368.63 US 42 (Adams Street)Western end of northbound US 42 concurrency

US 42 north (Ashland Road) to US 30
Eastern end of US 42 concurrency
SR 39 north (East 5th Street)
Western end of SR 39 concurrency
Madison Township6.9611.20

SR 39 south (Lucas Road) to I-71
Eastern end of SR 39 concurrency
AshlandMifflin Township13.0821.05
SR 603 to US 30
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b Ohio Department of Transportation. "Technical Services Straight Line Diagrams". Retrieved 2008-03-16.
  2. ^ National Highway System: Ohio (PDF) (Map). Federal Highway Administration. December 2003. Retrieved 2010-09-15.
  3. ^ Plat Book of Richland County, Ohio (PDF) (Map). Richland County Auditor. 1940. Retrieved August 11, 2020.
  4. ^ Ohio Official Highway Map 1959–1960 (PDF) (Map). Ohio Department of Transportation. 1959. Retrieved August 6, 2020.
  5. ^ 1961 Ohio Official Highway Map (PDF) (Map). Ohio Department of Transportation. 1961. Retrieved August 6, 2020.

External links