Interstate 675 | ||||
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Map of Ohio with I-675 highlighted in red
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Route information | ||||
Auxiliary route of I-75 | ||||
Maintained by ODOT | ||||
Length: | 26.53 mi (42.70 km) | |||
Existed: | 1987 – present | |||
Major junctions | ||||
South end: | I-75 near Miamisburg | |||
US 35 in Beavercreek | ||||
North end: | I-70 / SR 4 / Clark CR 335 near Fairborn | |||
Highway system | ||||
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Interstate 675 (I-675) is an auxiliary interstate highway in the suburbs of Dayton in the U.S. state of Ohio. Interstate 675 serves as an eastern bypass of Dayton. I-675 measures 26.53 miles (42.70 km) in length. As originally proposed, the route was to reconnect with I-75 north of Dayton near Northridge rather than going east towards Springfield and I-70 (this was later rejected because part of the right-of-way would have gone through Wright-Patterson Air Force Base). Construction was completed in 1987, though some have lobbied to extend the highway west of Dayton.
From the south, the highway begins at Interstate 75 in Miami Township, with four lanes. The highway opens to six lanes just after the interchange with State Route 725 in Washington Township. The next major junction is made with U.S. Route 35 in Beavercreek, which is a full-access interchange. The highway reduces to four lanes just after the interchange with North Fairfield Road. The highway interchanges with Interstate 70 near Fairborn, where it ends. The road continues as two lane Spangler Road, which leads to the unincorporated community of Medway.