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State Road 66 is an east–west highway in six counties in the southernmost portion of the U.S. state of Indiana.

State Road 66 marker

State Road 66
Route information
Maintained by INDOT
Length150.862 mi[2] (242.789 km)
ExistedOctober 1, 1926[1]–present
Major junctions
West end SR 69 in Harmony Township
  US 41 in Evansville

I-69 in Evansville
US 231 in Rockport

I-64 in Carefree
East end US 150 in Rego
CountiesOrange, Perry, Posey, Spencer, Vanderburg, Warrick,
Highway system
SR 65SR 67


Route descriptionEdit

State Road 66 begins at the eastern end of a toll bridge over the Wabash River in New Harmony and ends at U.S. Route 150 east of Hardinsburg. It is a divided limited-access highway in the metropolitan Evansville area, where it is part of the Lloyd Expressway, and also between the unincorporated communities of Yankeetown and Hatfield. For the most part, however, State Road 66 is undivided rural highway following the Ohio River, and a large portion of its route (from just east of Newburgh to State Road 62 at Sulphur) carries the designation of the Ohio River Scenic Byway.


Lloyd ExpresswayEdit

Within the City of Evansville, the portion of SR 66 east of US 41 is known as the Lloyd Expressway. It is named in honor of former Mayor Russell G. Lloyd, Sr., who was assassinated after leaving office in 1980. In the spring of 1983, buildings in the expressway's path began coming down and construction officially started on July 29, 1983. Motorists endured five years of detours and construction as the expressway was built through the heart of the city.[3]

Major wideningEdit

Increasing traffic on the segment of State Road 66 between Evansville and the Alcoa plant east of Newburgh has led the Indiana Department of Transportation to widen the road (eventually being capable of expansion to six lanes) from State Road 261 to the western end of the present Yankeetown-Hatfield four-lane segment.

As of March 2009, work was well underway on the segment from State Road 261 to the Newburgh Lock & Dam. By the end of 2010, the project was complete from State Road 261 to French Island Trail (formerly Indiana State Road 662), and work was progressing from that point east beyond Indiana State Road 61 to the existing four-lane stretch near Yankeetown.

Major intersectionsEdit

PoseyHarmony Township0.0000.000  SR 69 – GriffinWestern end of SR 66
Wadesville6.72310.820  SR 165 north – PoseyvilleSouthern terminus of SR 165
VanderburghGerman Township15.39924.782University Parkway
17.62728.368  SR 65 north – CynthianaSouthern terminus of SR 65
Evansville23.69838.138  US 41 north – VincennesWestern end of US 41 concurrency
24.20438.953  SR 62 east – BoonvilleWestern end of SR 62 concurrency
25.28640.694   US 41 south / SR 62 west – Mt. Vernon, HendersonSouthern end of US 41 concurrency and Eastern end of SR 62 concurrency
29.89448.110  I-69 – Evansville
WarrickOhio Township33.57154.027  SR 261 north – BoonvilleSouthern terminus of SR 261
Anderson Township39.74563.963  SR 61 north – BoonvilleSouthern terminus of SR 61
SpencerHatfield48.75078.456  SR 161 north – HollandWestern end of SR 161 concurrency
Reo52.00883.699  SR 161 south OwensboroEastern end of SR 161 concurrency
  US 231 – Dale, Owensboro
Huff Township69.275111.487  SR 70 westEastern terminus of western section of SR 70
PerryTroy72.408116.529  SR 545 northSouthern terminus of SR 545
Tell City75.500121.505  SR 37 beginsSouthern terminus of SR 37; southern end of SR 37 concurrency
75.787121.967  SR 37 north – EnglishNorthern of SR 37 concurrency
Cannelton80.088128.889  SR 237 - Hawesville
Tobin Township84.420135.861  SR 166 east – TobinsportWestern terminus of SR 166
Derby101.584163.484  SR 70 westEastern terminus of SR 70.
CrawfordSulphur120.090193.266   SR 62 west / SR 237 north – St. Croix, EnglishWestern end of SR 62 concurrency; southern terminus of SR 237
Leavenworth127.931205.885  SR 62 east – CorydonEastern end of SR 62 concurrency
Jennings Township130.555–
  I-64 – Evansville, LouisvilleExit 92 on I-64
Marengo140.111225.487  SR 64 west – EnglishWestern end of SR 64 concurrency
Milltown143.799231.422  SR 64 east – GeorgetownWestern end of SR 64 concurrency
WashingtonHardinsburg150.862242.789  US 150 – Paoli, New AlbanyEastern terminus of SR 66
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ "Road Numbers to Be Changed". The Hancock-Democrat. The Indianapolis News. September 30, 1926. Retrieved June 9, 2016 – via  
  2. ^ a b Indiana Department of Transportation (July 2016). Reference Post Book (PDF). Indianapolis: Indiana Department of Transportation. Retrieved December 22, 2016.
  3. ^ "Driving Division was frustrating, scary". Evansville Courier & Press. Archived from the original on 2007-09-27. Retrieved 2007-04-07.

External linksEdit