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Interstate 74
Interstate 74
	I-74 highlighted in red
Route information
	Maintained by ODOT
Length	19.47 mi (31.33 km)
NHS	Entire route
Major junctions
West end	I-74 at Indiana state line
	I-275 near Cincinnati; US 27 in Cincinnati;
East end	I-75 / US 52 in Cincinnati
Location
Country	United States
State	Ohio
Counties	Hamilton
Highway system
	Interstate Highway System; Main; Auxiliary; Suffixed; Business; Future; Ohio State Highway System; Interstate; US; State; Scenic;

Interstate 74 (I-74) in the US state of Ohio runs for 19.47 miles (31.33 km) southeast from the Indiana border to the western segment's current eastern terminus at I-75 just north of Downtown Cincinnati. It is also signed with U.S. Route 52 (US 52) for its entire length.

Route description

The Ohio portion of I-74 begins on the Indiana border near Harrison and travels east. Shortly after crossing into Ohio, the Interstate curves southeast before it intersects with I-275 near milepost 5. It then overlaps with that beltway route, heading generally east for approximately four miles (6.4 km) before splitting from I-275 to continue southeast into Cincinnati. Approximately 10 miles (16 km) later, I-74 reaches its eastern terminus at I-75, about four miles (6.4 km) north-northwest of Downtown Cincinnati.

History

Future

Proposals call for I-74 to be continued through Ohio and into West Virginia, concurrent with I-73; with both of these roads continuing through Virginia and North Carolina to end in Myrtle Beach, South Carolina. Due to funding concerns, there are no concrete plans for this to occur.

However, several plans are in the running for the extension through the Cincinnati metropolitan area. They include:

Running along I-75 to the interchange at I-275, then onto State Route 32 (SR 32);
Along I-75 between the I-74/I-75 interchange and I-75/SR 562 interchange, then onto SR 562, then to the interchange at I-71/SR 562, then to the I-71/Red Bank corridor interchange, down the Red Bank corridor, and then finally along a new highway connector to SR 32; and
From the I-74/I-75 interchange to I-75/SR 562 interchange, then onto SR 562, then on through the I-71/SR 562 interchange, and then finally to the I-71/I-275 interchange before connecting to SR 32.

The second route was eliminated due to opposition regarding a key part of its completion: a $366.2-million highway that would need to be constructed near Mariemont and Newtown (terminuses: Red Bank Road/Wooster Pike intersection and Bells Lane). Total costs would have been $809.1 million ($62 million per mile ($39 million/km)). Improvements to existing roads have been proposed instead.

The Norwood Lateral (SR 562) would need to be reconstructed in order to become part of I-74. Here are the possible and/or most likely needs: a third travel lane in each direction (two each way currently), overpasses requiring more vertical clearance (16 feet (4.9 m) minimum), upgraded ramp extensions at interchanges (1,200 feet (370 m)), and shoulders of more width. There are highways with shoulder widths of four and eight feet (1.2 and 2.4 m), however; so this might not be a serious issue. This problem could be resolved through Congress if they wanted to designate the Norwood Lateral as a future segment of the Interstate Highway System.

Exit list

The entire route is in Hamilton County.

Location	mi^[2]	km	Exit	Destinations	Notes
Harrison	0.00	0.00		I-74 west / US 52 west – Indianapolis	Indiana state line
	1.60	2.57	1	New Haven Road – Harrison
	3.58	5.76	3	Dry Fork Road
Whitewater Township	5.85	9.41	5	I-275 south – Kentucky	West end of I-275 overlap; I-275 exit 25
Whitewater Township	7.76	12.49	7	SR 128 – Cleves, Hamilton, Miamitown
Colerain Township	9.33	15.02	9	I-275 north to I-75 – Dayton	East end of I-275 overlap; I-275 exit 28
Green Township	11.16	17.96	11	Rybolt Road, Harrison Pike
Green Township	14.66	23.59	14	North Bend Road – Cheviot
Cincinnati	17.44	28.07	17	Montana Avenue	Westbound exit and eastbound entrance
	18.40– 18.52	29.61– 29.81	18	US 27 north (Beekman Street) / Colerain Avenue	No direct access from I-74 west to Beekman Street south or from Beekman Street north to I-74 east, however, a legal U-turn allows both of these accesses to be achieved.
	19.08	30.71	19	Elmore Street, Spring Grove Avenue	Former westbound exit and eastbound entrance to I-75 south; closed 2013
	19.47	31.33		I-75 / US 27 south / US 52 east – Dayton, Lexington	I-75 exit 4; US 27 and US 52 overlaps end east; Unsigned US 27
	19.47	31.33	20	US 27 / US 127 south – Central Parkway	Former eastern end of US 27 overlap; closed 2013
1.000 mi = 1.609 km; 1.000 km = 0.621 mi Closed/former Concurrency terminus Incomplete access