Indiana State Road 64
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|Maintained by INDOT|
|Length:||107.49 mi (172.99 km)|
|Existed:||October 1, 1926 – present|
|West end:||IL 15 at the Wabash River, near Mount Carmel, Illinois|
| US 41 in Princeton
I-69 near Oakland City
US 231 at Huntingburg
|East end:||I-64 / SR 62 near Edwardsville|
|Counties:||Crawford, Dubois, Floyd, Gibson, Harrison, Pike|
The route parallels Interstate 64, which often causes confusion, as the widest distance between them is 20 miles at the Wabash River, and both routes exist in Crawford, Dubois, Floyd, Gibson, and Harrison Counties. It is often referred to as Indiana 64 to distinguish it from the Interstate.
State Road 64 begins at a bridge across the Wabash River at Mount Carmel, Illinois, connecting it with Illinois Route 15. It ends at Interstate 64 near Edwardsville. For the bulk of its length, it runs parallel to Interstate 64 and approximately 30 miles (48 km) north of it. Most of the route is two-lane undivided highway, with undivided multi-lane segments in the city of Princeton near the junction of U.S. Route 41, and through the city of Huntingburg as well as near English.
Traffic conditions on the stretch between Princeton and Mount Carmel are notorious for often being congested with large amounts of coal trucks between local mines and Gibson Generating Station, located near the route's western terminus and Illinois resident employees of both the plant and Toyota Motor Manufacturing Indiana and suppliers in Princeton using the same two lane road in their commute often result in severe traffic congestion during two distinct periods in the day.
Until late 2010, at the western end of the highway were two very narrow bridges that typically handled at least 900-1200 vehicles a day, doubling to ~2000 a day vehicles during Mount Carmel's Ag Days, Lone Ranger Festival, and other holidays. Excavation began on a parallel replacement bridge in April 2008, and the new bridge was opened (with the highway realigned appropriately) in December 2010.
|Gibson||White River Township||0.00||0.00||IL 15 west – Mt. Carmel||Western terminus of SR 64|
|Patoka Township||4.71||7.58||SR 65 south – Owensville, Cynthiana||Western end of SR 65 concurrency|
|Princeton||9.56||15.39||US 41 – Evansville, Terre Haute|
|11.26||18.12||SR 65 north – Petersburg||Eastern end of SR 65 concurrency|
|Oakland City||I-69 – Evansville||Only Southbound Sign has destination.
Northbound current only says "I-69 North" until route is completed to Indianapolis
|22.87||36.81||SR 57 – Evansville|
|24.28||39.07||SR 357 north – Oakland City||To Oakland City University|
|Pike||Patoka Township||29.88||48.09||SR 61 – Boonville, Petersburg|
|Lockhart Township||36.40||58.58||SR 257 – Stendal, Washington|
|Dubois||Patoka Township||41.89||67.42||SR 161 south – Holland||Northern terminus of SR 161|
|Huntingburg||46.27||74.46||US 231 – Dale, Jasper|
|Jackson Township||50.88||81.88||SR 162 – Ferdinand, Jasper|
|Birdseye||61.31||98.67||SR 145 south||Western end of SR 145 concurrency|
|Crawford||Patoka Township||65.66||105.67||SR 145 north – French Lick||Eastern end of SR 145 concurrency|
|Eckerty||SR 37 south – Tell City||Western end of SR 37 concurrency|
|English||SR 37 north / SR 237 south – Paoli||Eastern end of SR 37 concurrency; Northern terminus of SR 237|
|Marengo||82.30||132.45||SR 66 west – Tell City||Western end of SR 66 concurrency|
|Whiskey Run Township||85.98||138.37||SR 66 east||Eastern end of SR 66 concurrency|
|Harrison||Depauw||90.00||144.84||SR 337 south – Corydon||Northern terminus of SR 337|
|New Salisbury||SR 135 – Corydon, Salem|
|Jackson Township||99.16||159.58||SR 335 south||Southern terminus of the southern section of SR 335|
|Floyd||Georgetown Township||107.49||172.99||I-64 / SR 62 – Evansville, New Albany||Eastern terminus of SR 64|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi