Arizona State Route 387

State Route 387, also known as SR 387, is a state highway in south-central Arizona (United States) traveling from State Route 84 in Casa Grande, north to Interstate 10, then east to its junction with State Route 87 west of Coolidge.

State Route 387
SR 387 highlighted in red
Route information
Maintained by ADOT
Length	15.71 mi[1] (25.28 km)
Existed	1967–present
Major junctions
South end	SR 84 in Casa Grande
Major intersections	I-10 south of Sacaton
North end	SR 87 west of Coolidge
Location
Country	United States
State	Arizona
Highway system
Arizona State Highway System Interstate US State Scenic Proposed Former
← SR 386 → SR 389

Route description

SR 387 is a 15.71-mile (25.28 km) highway that connects Casa Grande with I-10 and SR 87. The southern terminus of the highway is located at an intersection with SR 84 in Casa Grande. It heads north through the city from this intersection to the Gila River Indian Reservation before reaching I-10. After the interchange with I-10, the highway intersects SR 187, with SR 387 turning towards the east at the intersection. The highway continues to the east-northeast until it reaches its northern terminus at SR 87.^[1][2]

History

The route was established between 1946 and 1951, from SR 187 to SR 87 just south of present-day Sun Lakes. Between 1958 and 1961, it was cancelled, and became part of SR 93, a proposed extension of US 93. In 1967, SR 387 was designated from SR 93 to SR 87. It extended south over part of SR 93 on December 17, 1984.^[3]

Junction list

The entire route is in Pinal County.

Location	mi[1]	km	Destinations	Notes
Casa Grande	0.00	0.00	Florence Boulevard to SR 287 east / I-10 – Historic Downtown SR 84 to I-8	Southern terminus
Gila River Indian Community	8.56	13.78	I-10 – Phoenix, Tucson	Exit 185 on I-10
	8.79	14.15	SR 187 north – Sacaton	Southern terminus of SR 187
	15.71	25.28	SR 87 – Chandler, Coolidge, Florence	Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi