Arkansas Highway 166

Highway 166
Highway 166
Route information
	Maintained by ArDOT
Section 1
Length	7.97 mi (12.83 km)
South end	AR 361 at Davidsonville Historic State Park
North end	US 62 in Pocahontas
Section 2
Length	14.57 mi (23.45 km)
South end	Future I-57 / US 62 / US 67 in Pocahontas
North end	Route A / Route Y at Missouri state line
Location
Country	United States
State	Arkansas
Counties	Randolph
Highway system
	Arkansas Highway System; Interstate; US; State; Business; Spurs; Suffixed; Scenic; Heritage;

Arkansas Highway 166 is a designation for two state highways in Randolph County, Arkansas. The southern segment of 7.97 miles (12.83 km) runs from Old Davidsonville State Park to Pocahontas.^[1] A northern segment of 14.57 miles (23.45 km) runs north from US 62/US 67 to the Missouri state line.^[2]

Route description

Highway 166 near Davidsonville Historic State Park

AR 166 begins at Davidsonville Historic State Park in southwest Randolph County. The route runs north to meet US Route 62 in south Pocahontas. The route is entirely two-lane, undivided.^[1]

AR 166 begins at US 62/US 67 (Future I-57) in east Pocahontas. The route runs north to meet AR 115 at Stokes and AR 328 in Maynard. AR 166 then trails north through Supply and Minorea to the Missouri state line, where it terminates at Missouri supplemental routes A/Y.

Mile markers reset at concurrencies. The entire route is in Randolph County.

Location	mi^[2]	km	Destinations	Notes
Davidsonville Historic State Park	0.0	0.0	Roadway continues as AR 361 – Black Rock	southern terminus, AR 361 northern terminus
Pocahontas	7.97	12.83	US 62 west – Imboden	northern terminus
	Gap in route
	0.0	0.0	US 62 east / US 67 north (Future I-57) – Corning	southern terminus
Stokes	7.47	12.02	AR 115 south – Pocahontas
AR 115 concurrency north, 4.9 miles (7.9 km)
Maynard	0.0	0.0	AR 115 north / AR 328 west – Doniphan MO, Maynard Pioneer Museum	AR 328 concurency east
Maynard	0.47	0.76	AR 328 east – Reyno	AR 328 concurrency ends
	7.10	11.43	Route A / Route Y	Continuation into Missouri
1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus

^ ^a ^b ^c ^d "[Arkansas] State Highways 2009 (Database)." April 2010. AHTD: Planning and Research Division. Database. Archived 2011-07-07 at the Wayback Machine Retrieved January 18, 2011.
^ ^a ^b General Highway Map - Randolph County, Arkansas (PDF) (Map) (5/12/2008 ed.). Arkansas State Highway and Transportation Department. Retrieved May 25, 2011.

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