Interstate 675 (I-675) is an

auxiliary Interstate Highway Auxiliary Interstate Highways (also called three-digit Interstate Highways) are a supplemental subset of the freeways within the Interstate Highway System of the United States. Auxiliary routes are generally classified as spur routes, which conn ...

in the suburbs of

Dayton Dayton () is the List of cities in Ohio, sixth-largest city in the U.S. state of Ohio and the county seat of Montgomery County, Ohio, Montgomery County. A small part of the city extends into Greene County, Ohio, Greene County. The 2020 United S ...

in the US state of Ohio. I-675 serves as an eastern bypass of Dayton that is long. As originally proposed, the route was to reconnect with

I-75 Interstate 75 (I-75) is a major north–south Interstate Highway in the Great Lakes and Southeastern regions of the United States. As with most Interstates that end in 5, it is a major cross-country, north–south route, traveling from St ...

north of Dayton near Northridge rather than going east toward Springfield and

I-70 Interstate 70 (I-70) is a major east–west Interstate Highway in the United States that runs from I-15 near Cove Fort, Utah, to a park and ride lot just east of I-695 in Baltimore, Maryland, and is the fifth-longest Interstate in the c ...

(this was later rejected because part of the

right-of-way Right of way is the legal right, established by grant from a landowner or long usage (i.e. by prescription), to pass along a specific route through property belonging to another. A similar ''right of access'' also exists on land held by a gov ...

would have gone through

Wright-Patterson Air Force Base Wright-Patterson Air Force Base (WPAFB) is a United States Air Force base and census-designated place just east of Dayton, Ohio, in Greene and Montgomery counties. It includes both Wright and Patterson Fields, which were originally Wilbur W ...

). Construction was completed in 1987, though some have lobbied to extend the highway west of Dayton.

Route description

From the south, the highway begins at a

semi-directional T interchange In the field of road transport, an interchange (American English) or a grade-separated junction (British English) is a road junction that uses grade separations to allow for the movement of traffic between two or more roadways or highways, using ...

with

in Miami Township, with four lanes. Next, there is a modified split diamond interchange with State Route 725 (SR 725) in Washington Township; ramps to and from the south connect to SR 725, with an additional directional loop ramp from eastbound SR 725 to northbound I-675; ramps to and from the north connect to Yankee Street. Rather than employing a pair of one-way

frontage road A frontage road (also known as an access road, outer road, service road, feeder road, or parallel road) is a local road running parallel to a higher-speed, limited-access road. A frontage road is often used to provide access to private drive ...

s typical for this type of interchange, access between SR 725 and Yankee Street is made via Leona Lane or via Yankee Street itself (both

two-way street A two-way street is a street that allows vehicles to travel in both directions. On most two-way streets, especially main streets, a line is painted down the middle of the road to remind drivers to stay on their side of the road. Sometimes one por ...

s). After this interchange, the highway opens to six lanes. The next junction is with SR 48 on the border of unincorporated Washington Township and the city of Centerville. First, there is a half-diamond interchange at West Alexandersville–Bellbrook (Alex–Bell) Road, providing a northbound exit and a southbound entrance. Next, there is a four-ramp

partial cloverleaf interchange A partial cloverleaf interchange or parclo is a modification of a cloverleaf interchange. The design has been well received, and has since become one of the most popular freeway-to- arterial interchange designs in North America. It has also be ...

with SR 48. The loop ramp from northbound I-675 to SR 48 is directional northbound, and there is a directional ramp from southbound SR 48 to southbound I-675; thus, the movements from northbound I-675 to southbound SR 48, and from northbound SR 48 to southbound I-675, are made via Alex–Bell Road. The next major junction is with US Route 35 (US 35) in Beavercreek, which is a full-access

combination interchange In the field of road transport, an interchange (American English) or a grade-separated junction (British English) is a road junction that uses grade separations to allow for the movement of traffic between two or more roadways or highways, using ...

; southbound traffic at this interchange uses collector–distributor lanes. The junction with North Fairfield Road and SR 844 provides access to Wright-Patterson Air Force Base Area A,

Wright State University Wright State University is a public research university in Fairborn, Ohio. Originally opened in 1964 as a branch campus of Miami University and Ohio State University, it became an independent institution in 1967 and was named in honor of aviatio ...

, and the Nutter Center. The configuration is a hybrid

diamond interchange A diamond interchange is a common type of road junction, used where a controlled-access highway crosses a minor road. Design The freeway itself is grade-separated from the minor road, one crossing the other over a bridge. Approaching the ...

, with complete access provided to North Fairfield Road. There is partial direct access provided to SR 844: the exit ramp from northbound I-675 splits, with the right branch meeting North Fairfield Road, while the left branch becomes northbound SR 844 and flies under both I-675 and North Fairfield Road; the entrance ramp from North Fairfield Road to southbound I-675 is offset from its expected position in a diamond interchange, allowing southbound SR 844 to fly under North Fairfield Road and to merge on the entrance ramp's left. Access from southbound I-675 to northbound SR 844, and from southbound SR 844 to northbound I-675, is made indirectly, via North Fairfield Road and Colonel Glenn Highway. The Interstate reduces to four lanes just after this interchange. The highway has a

cloverleaf interchange A cloverleaf interchange is a two-level interchange (road), interchange in which all turns are handled by slip roads. To go left (in right-hand traffic; reverse directions in left-driving regions), vehicles first continue as one road passes ...

with

near

Fairborn Fairborn is a city in Greene County, Ohio, United States. The population was 34,620 at the 2020 census. Fairborn is a suburb of Dayton, and part of the Dayton Metropolitan Statistical Area. It is the only city in the world named Fairborn, a port ...

, where it ends. The road continues as two-lane Spangler Road, which leads to the

unincorporated community An unincorporated area is a region that is not governed by a local municipal corporation. Widespread unincorporated communities and areas are a distinguishing feature of the United States and Canada. Most other countries of the world either have ...

Medway Medway is a unitary authority district and conurbation in Kent, South East England. It had a population of 278,016 in 2019. The unitary authority was formed in 1998 when Rochester-upon-Medway amalgamated with the Borough of Gillingham to fo ...

History

Exit list

References

External links

Kurumi - I-675 Ohio
{{3di, 75 75-6 Ohio 75-6 6 Ohio Transportation in Montgomery County, Ohio Transportation in Greene County, Ohio Transportation in Clark County, Ohio 1987 establishments in Ohio