State Route 126
Route information
Maintained by ODOT
Length	41.23 mi[1][2] (66.35 km)
Existed	1926–present
Major junctions
West end	SR 129 / SR 252 near Scipio
Major intersections	I-75 in Cincinnati I-71 in Montgomery
East end	US 50 in Milford
Location
Country	United States
State	Ohio
Counties	Butler, Hamilton, Clermont
Highway system
Ohio State Highway System Interstate US State Scenic
← SR 125 → US 127

State Route 126 (SR 126) is a state route starting at the Ohio-Indiana border, at a split with State Route 129 near Scipio, Ohio, and ending east of Cincinnati at an intersection with U.S. Route 50 in Milford. State Route 126 is locally known for comprising most of Ronald Reagan Cross County Highway.

History

Prior to the completion of Ronald Reagan Cross County Highway in 1997, the central portion of State Route 126 between Ross and Montgomery consisted of West Kemper Road, Springfield Pike (State Route 4), Glendale Milford Road, Kenwood Road, and Cooper Road.^[3] On October 28, 1997, the Ohio Department of Transportation (ODOT) took over Ronald Reagan Highway, except for the segment west of Colerain Avenue.^[4] State Route 126 was rerouted over the highway, while Kemper, Glendale Milford, Kenwood, and Cooper roads were returned to local authorities.^[5]

Major junctions

County	Location	mi[2]	km	Exit	Destinations	Notes
Butler	Reily–Morgan township line	0.00– 0.02	0.00– 0.032		SR 129 east (Hamilton Scipio Road) / SR 252 west – Brookville, Millville	Western terminus; western terminus of SR 129; eastern terminus of SR 252
	Morgan Township	7.66	12.33		SR 748 north (Millville Shandon Road) – Millville	Southern terminus of SR 748
	Ross Township	11.46	18.44		SR 128 south (Hamilton Cleves Road) – Cleves	Western end of SR 128 concurrency
		12.54	20.18		US 27 north / SR 128 north (Hamilton Cleves Road) – Oxford, Hamilton, Millville, Cincinnati	Interchange; eastern end of SR 128 concurrency; western end of US 27 concurrency
				West end of expressway
Hamilton	Colerain Township	13.27	21.36	—	East Miami River Road – Fairfield	Grade-separated single-loop intersections
		14.82	23.85	—	Kemper Road
		17.56	28.26	East end of expressway
					I-275 to I-74 / I-75 – Indianapolis, Dayton	Exit 33 on I-275
		19.75– 19.92	31.78– 32.06		US 27 south (Colerain Avenue) / Ronald Reagan Cross County Highway west	Interchange; eastern end of US 27 concurrency; exit 20 on Ronald Reagan Cross County Hwy.
				West end of freeway
	Mount Healthy–North College Hill line	22.13	35.61	22	US 127 (Hamilton Avenue) – Mount Healthy, North College Hill
	Finneytown	23.90	38.46	24A–B	Winton Road	Westbound exit and eastbound entrance only; signed as exits 24A (south) and 24B (north)
		24.58	39.56	25	Galbraith Road / Winton Road	Winton Road signed westbound only
	Cincinnati	26.68– 27.06	42.94– 43.55	27	I-75 – Cincinnati, Dayton	Signed as exits 27A (south) and 27B (north) eastbound; exit 10A on I-75; no access from I-75 southbound, from westbound SR 126 to I-75 northbound
	Reading	28.10	45.22	28	US 42 (Reading Road) / Galbraith Road	Eastbound exit and westbound entrance only
		28.52	45.90		To US 42 (Reading Road) / I-75 north / Galbraith Road	Westbound exit and eastbound entrance only
	Amberley	29.39	47.30	29	Ridge Road
	Blue Ash	31.27	50.32	31	Plainfield Road / Hunt Road
		31.91– 32.15	51.35– 51.74	32A	Blue Ash Road / Kenwood Road
	Montgomery–Sycamore Township line			East end of Ronald Reagan Cross County Highway; east end of freeway
		32.73	52.67	32B–C	I-71 – Cincinnati, Columbus	Interchange; signed as exits 32B (south) and 32B (north) eastbound; no exit numbers westbound; exit 14 on I-71
	Montgomery	33.34	53.66		US 22 west / SR 3 south (Montgomery Road south)	Roundabout; western end of US 22/SR 3 concurrency
		33.99	54.70		US 22 east / SR 3 north (Montgomery Road north)	Eastern end of US 22/SR 3 concurrency
Clermont	No major junctions
Hamilton	Milford	41.23	66.35		US 50	Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access