Interstate 675 (I-675) is an
auxiliary Interstate Highway in the suburbs of
Dayton
Dayton () is the sixth-largest city in the U.S. state of Ohio and the county seat of Montgomery County. A small part of the city extends into Greene County. The 2020 U.S. census estimate put the city population at 137,644, while Greater Da ...
in the US state of Ohio. I-675 serves as an eastern
bypass
Bypass may refer to:
* Bypass (road), a road that avoids a built-up area (not to be confused with passing lane)
* Flood bypass of a river
Science and technology Medicine
* Bypass surgery, a class of surgeries including for example:
** Heart bypas ...
of Dayton that is long. As originally proposed, the route was to reconnect with
I-75 north of Dayton near
Northridge rather than going east toward
Springfield
Springfield may refer to:
* Springfield (toponym), the place name in general
Places and locations Australia
* Springfield, New South Wales (Central Coast)
* Springfield, New South Wales (Snowy Monaro Regional Council)
* Springfield, Queenslan ...
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.
Route description
From the south, the highway begins at a
semi-directional T interchange with
I-75 in
Miami Township, with four lanes.
Next, there is a modified
split 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 i ...
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
One-way or one way may refer to:
*One-way traffic, a street either facilitating only one-way traffic, or designed to direct vehicles to move in one direction
*One-way travel, a trip that does not return to its origin
Music
*One Way (American ban ...
frontage roads 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 streets). 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 bee ...
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; 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 aviation ...
, and the
Nutter Center. The configuration is a hybrid
diamond interchange, 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 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 over or under the ...
with
I-70 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 of
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 for ...
.
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