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Interstate 675 Ohio

 

Interstate 675 stays east of downtown Dayton but serves Wright-Patterson Air Force Base. This view (and mileage sign) is located after the interchange with Ohio 844 in Fairborn. This mileage sign lists the junction with Interstate 70 (the northern terminus) at eight miles away, Springfield at 21 miles, and Columbus at 64 miles. Photo taken by Chris Lokken and Amber Mason (05/10/08).

Routing

Interstate 675 in Ohio is the bypass of Dayton to the south and east, connecting Interstates 70 and 75. It provides the fastest route from northbound Interstate 75 to Springfield via Ohio 4.

History

Instead of running on its current alignment to Interstate 70 near Springfield, the original proposal for Interstate 675 called for it to loop back to Interstate 75 in the vicinity of Northridge. The 26.53 mile freeway in its current state was completed by 1989.

Southern Terminus - Interstate 75 - Miamisburg, Ohio
Perspective from Interstate 675 south
This mileage sign on Interstate 675 south after the U.S. 35 interchange provides the distance to the southern end at Interstate 75 (12 miles). The sign also provides the distance to the control city of Cincinnati (54 miles). This is not the first mention of Interstate 75 as a destination on Interstate 675 south. Photo taken by Chris Lokken and Amber Mason (05/10/08).
Entering Sugarcreek and after passing through the interchange with Indian Ripple Road, Interstate 675 south finds itself nine miles from Interstate 75, the southern end. Also on the mileage sign, Cincinnati is 51 miles away. Photo taken by Chris Lokken and Amber Mason (05/10/08).
After passing into Montgomery County and Centerville, and after interchanging with Wilmington Pike, Interstate 675 south passes this mileage sign which gives the distance to Junction Ohio 48 (two miles), Junction Interstate 75 (the southern end is six miles away), and Cincinnati (48 miles). Photo taken by Chris Lokken and Amber Mason (05/10/08).
After interchanging with Ohio 48, Interstate 675 south approaches its final standalone interchange with Ohio 725. This mileage sign is found between those two state routes, and it refers to Interstate 75 as "IR-75," which is common in Nevada but uncommon elsewhere. It's three miles away from this point, and Cincinnati is 45 miles away. Photo taken by Chris Lokken and Amber Mason (05/10/08).
At the Ohio 725 interchange (Exit 2), southbound Interstate 675 approaches the final junction with Interstate 75. The 1 1/2-mile overhead for Interstate 75 is posted here. Also at this interchange, Interstate 675 south will narrow to a four-lane freeway (previously the freeway had six lanes). Photo taken by Steve Hanudel (08/20/05).
After the onramp from Ohio 725, this 3/4-mile overhead for Interstate 75 is posted on Interstate 675 south. Photo taken by Chris Lokken and Amber Mason (05/10/08).
Interstate 675 south is now one-quarter mile from the ramp to Interstate 75 north, which travels back toward Dayton and onward to Toledo. The main lanes of Interstate 675 south default onto Interstate 75 south toward the control city of Cincinnati. Photo taken by Chris Lokken and Amber Mason (05/10/08).
Two END shields are posted for Interstate 675 south, and the pull-through panel now displays Interstate 75 south to Cincinnati. The left two lanes merge onto Interstate 75 south en route to Cincinnati, while the right lane transitions to northbound Interstate 75 en route to downtown Dayton and Toledo. Photo taken by Steve Hanudel (08/20/05).
Perspective from Interstate 75 north
This mileage sign on Interstate 75 north provides the distance to Exit 43, Junction Interstate 675 north (four miles) and the control city of Dayton (14 miles). Photo taken by Chris Lokken and Amber Mason (05/10/08).
Soon thereafter is the first guide sign of the pending junction between Interstate 75 northbound and Exit 43, Junction Interstate 675 north. Photos taken by Steve Hanudel (08/20/05) and Chris Lokken and Amber Mason (05/10/08).
Use Interstate 675 north to Wright State University. Photo taken by Chris Lokken and Amber Mason (05/10/08).
Interstate 675 also connects to Wright-Patterson Air Force Base at Exit 17 via a short freeway spur (Ohio 844, which travels north to Ohio 444). The National Museum of the U.S. Air Force, Air Force Institute of Technology, Wright Brothers Memorial, and Huffman Prairie Flying Field are all located on the grounds of the air force base. Follow the signs to the various destinations via Interstate 675 north. Photo taken by Chris Lokken and Amber Mason (05/10/08).
The one-mile advance guide sign is posted on Interstate 75 north prior to the Interstate 675 split. The control city for Interstate 675 north is Columbus, under the assumption that motorists en route to the capital city of Ohio would use Interstate 675 north to Interstate 70 east. Interstate 675 enables a bypass of Dayton and thus avoids the congestion of the center city. Photo taken by Chris Lokken and Amber Mason (05/10/08).
Interstate 675 does not return to Interstate 75 at its northern end, so through traffic to Toledo should continue north on Interstate 75. Use Interstate 675 northeast to Beavercreek, Fairborn, and Springfield (via Interstate 70 east and Ohio 4 northeast). Photo taken by Chris Lokken and Amber Mason (05/10/08).
The right two lanes exit onto Interstate 675 north, while the left three lanes continue north toward downtown Dayton. Photo taken by Chris Lokken and Amber Mason (05/10/08).
Interstate 75 northbound reaches Exit 43, Junction Interstate 675 north. Interstate 675 allows Interstate 75 traffic to bypass Dayton to the east with a connection to Interstate 70 near Springfield. The control city is the state capital of Columbus. Photo taken by Chris Lokken and Amber Mason (05/10/08).
Next Three Interstate Junctions for Interstate 75 north
Interstate 70 18 miles at Murlin Heights, OH
Interstate 475 149 miles at Perrysburg, OH
Interstate 80/
Interstate 90
153 miles at Perrysburg, OH
Perspective from Interstate 75 south
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Perspective from Interstate 675 north
Shortly after splitting from Interstate 75, this is the first reassurance shield on Interstate 675 north. Photo taken by Chris Lokken and Amber Mason (05/10/08).
Some distance north on Interstate 675, this mileage sign provides the distance to the air force base (seven miles) and the junction with Interstate 70 at Exits 26A-B (18 miles). Interstate 70 will remain a destination on the mileage signs for the entire length of Interstate 675 north. Photo taken by Chris Lokken and Amber Mason (05/10/08).
Northern Terminus - Interstate 70 and Ohio 4 - north of Fairborn, Ohio
Perspective from Interstate 675 north
This mileage sign on Interstate 75 north provides the distance to Exits 26A-B, Junction Interstate 70 east to Columbus and west to Dayton (three miles), the city of Springfield (16 miles), and the capital city of Columbus via Interstate 70 east (59 miles). Photo taken by Chris Lokken and Amber Mason (05/10/08).
Northbound Interstate 675 reaches Exit 24, Junction Ohio 444 to Enon. The next and final interchange on Interstate 675 north is Exits 26A-B, Junction Interstate 70 and Ohio 4. Interstate 70 and Ohio 4 share alignment between Interstate 70's Exits 41 asnd 47. At Exit 47, Ohio 4 follows a freeway spur northeast to U.S. 40 and the city of Springfield. Photo taken by Chris Lokken and Amber Mason (05/10/08).
The final northbound Interstate 675 reassurance shield is posted shortly after the Ohio 444 on-ramp. An Alternate Interstate 70 trailblazer is posted next to the Interstate 675 shield, implying that this section of Interstate 675 can be used as an alternate to busy Interstate 70. There are other sections of highway around Ohio's Interstate 70 that are similarly designated. Photo taken by Chris Lokken and Amber Mason (05/10/08).
The first ramp in the Interstate 70 interchange is Exit 26A to Interstate 70 east to Springfield and Columbus. Photo taken by Chris Lokken and Amber Mason (05/10/08).
The Interstate 675 ends and Exit 26B panels from a closer vantage point. Interstate 70 westbound and Ohio 4 part ways at the next interchange (Exit 41). Interstate 70 continues 106 miles from there to the capital city of Indiana, Indianapolis. Photos taken by Chris Lokken and Amber Mason (05/10/08) and by AARoads (10/15/04).
Immediately thereafter, northbound Interstate 675 ends at the Exit 26B ramp to Interstate 70 west to Dayton, Richmond, and Indianapolis. The left lanes of Interstate 675 enter the town of Medway. Photo taken by Chris Lokken and Amber Mason (05/10/08).
Perspective from Interstate 70 east
This is the two-mile advance sign on eastbound Interstate 70 for Exits 44A-B, Junction Interstate 675. The freeway travels south to the east of Dayton, then merges with Interstate 75 south of downtown. Photo taken by Steve Hanudel (08/20/05).
This auxiliary guide sign found on Interstate 70 east is for Wright Patterson Air Force Base, the city of Fairborn, and Wright State University via Interstate 675 south. The exit tab shows that traffic must use Exit 44A for Interstate 675 south to reach these destinations. Photo taken by Chris Lokken and Amber Mason (05/10/08).
Continuing east on Interstate 70, this is the one-mile advance sign for Exit 44A, Junction Interstate 675 south and Exit 44B, Spangler Road. Note the side tab for the city of Medway. Traffic must use Exit 44B for Spangler Road to reach that community. Photo taken by Chris Lokken and Amber Mason (05/10/08).
Another auxillary guide sign, this time for the Air Force Museum and the Wright Brothers Memorial, states that traffic must use Interstate 675 south to reach these destinations. Photo taken by Chris Lokken and Amber Mason (05/10/08).
This sign on Interstate 70 east advises one-half mile until the interchange. Exit 44A connects to Interstate 675 south, and Exit 44B links to Spangler Road north to Medway. Photo taken by Chris Lokken and Amber Mason (05/10/08).
Eastbound Interstate 70 reaches Exit 44A, Junction Interstate 675 south. The second ramp in this cloverleaf interchange connects to northbound Spangler Road, a local access route. Photo taken by Chris Lokken and Amber Mason (05/10/08).
This Interstate 675 south reassurance shield is posted on the ramp from eastbound Interstate 70. Photo taken by Steve Hanudel (08/20/05).
Back on the mainline, eastbound Interstate 70 reaches Exit 44B, Spangler Road north to Medway. Interstate 70 passes under the Interstate 675 mainline at this cloverleaf interchange. Photo taken by Chris Lokken and Amber Mason (05/10/08).
Perspective from Interstate 675 south
Leaving the town of Medway, the Interstate 675 freeway begins at the interchange with Interstate 70 and Ohio 4. The first ramp on southbound Interstate 675 connects to Interstate 70 and Ohio 4 west to Dayton, Richmond, and Indianapolis. Photo taken by Chris Lokken and Amber Mason (05/10/08).
The next ramp connects Interstate 675 south with Interstate 70 and Ohio 4 east to Springfield and Columbus. Photo taken by Chris Lokken and Amber Mason (05/10/08).
This is the first reassurance shield along southbound Interstate 675. It is also signed as Alternate Interstate 70. Photo taken by Steve Hanudel (08/20/05).
A mileage sign on Interstate 675 south provides the distance to U.S. 35 (eight miles), Interstate 75 (22 miles), and the control city of Cincinnati (59 miles). Photo taken by Chris Lokken and Amber Mason (05/10/08).

Page Updated August 3, 2008.

 
Mileage

State Ohio
Mileage 26.53
Cities Dayton
Junctions Interstate 75, Interstate 70
Source: October 31, 2002 Interstate Route Log and Finders List
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