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| State Route 188 (Arizona) | |
|---|---|
| State | AZ |
| Type | SR |
| Route | 188 |
| Map notes | SR 188 highlighted in red |
| Length mi | 60.85 |
| Established | 1959 |
| Direction a | South |
| Terminus a | SR 87 near Globe, Arizona |
| Junction | US 60 near Claypool, Arizona |
| Direction b | North |
| Terminus b | SR 88 near Apache Junction, Arizona |
| Counties | Gila County, Pinal County |
State Route 188 (Arizona) is a north–south state highway in central Arizona that connects SR 87 near Globe to SR 88 near Apache Junction through the Salt River Canyon region and along the Salt River. The route serves tourism, local commerce, and access to recreational areas including Canyon Lake, Apache Lake, and Roosevelt Lake and intersects major corridors such as US 60. SR 188 traverses landscapes associated with the Tonto National Forest, San Carlos Apache Indian Reservation, and the historic transportation corridors used during the development of Arizona Territory and U.S. Route 60.
SR 188 begins at an intersection with SR 87 just north of Globe and proceeds northwest, entering the Tonto National Forest where it parallels the Salt River and Salt River Canyon Wilderness. The highway provides direct access to Roosevelt Lake, Apache Lake, and Canyon Lake, with viewpoints that overlook the Superstition Mountains and the Four Peaks Wilderness. SR 188 crosses through or near communities such as Claypool, Miami, and recreation nodes tied to the Tonto Basin. Key junctions include the intersection with US 60 at a convergence that serves traffic between Phoenix, Tempe, Mesa, and eastern Arizona communities. Northbound, SR 188 terminates at SR 88 near Apache Junction, providing connectivity toward I-10 and the Valley of the Sun metropolitan area. The corridor supports seasonal fluctuations tied to Arizona State Parks and resort traffic, as well as commercial freight movements linked to mining areas near Globe-Miami, Arizona.
The corridor that became SR 188 developed alongside 20th-century infrastructure initiatives including early U.S. Route 60 alignments and improvements during the post-war expansion of Arizona highways guided by the Arizona Department of Transportation. The designation was established in 1959 to formalize a numbered route linking SR 87 and SR 88 and to support evolving tourism to sites such as Canyon Lake and the Salt River Canyon. Over time, SR 188 has been modified in response to flood control and reservoir projects associated with the Roosevelt Dam and water management by entities like the Salt River Project. Realignments have reflected safety improvements influenced by standards promoted by the American Association of State Highway and Transportation Officials and funding from federal programs such as the Federal Aid Highway Act of 1956 and subsequent surface transportation legislation. The route has also seen maintenance and rehabilitation projects tied to regional economic shifts, including mining in the Globe-Miami district and suburban expansion emanating from Phoenix.
The primary junctions along SR 188 include: - Southern terminus at SR 87 near Globe — connection toward Show Low and Country Club, Arizona corridors. - Intersection with local collectors serving Globe–Miami mining district communities and access roads to San Carlos Apache Indian Reservation facilities. - Junction with US 60 near Claypool/Miami, linking to Apache Junction, Globe, and Payson. - Access points to Canyon Lake, Apache Lake, and Roosevelt Lake recreational areas, with spurs and boat-ramp access routes. - Northern terminus at SR 88 near Apache Junction — continuity toward I-10 and metropolitan Phoenix.
Planned improvements for SR 188 focus on safety, capacity, and resilience, with proposals aligned with funding priorities from the Arizona Department of Transportation and regional planning bodies like the Maricopa Association of Governments and the Gila County Board of Supervisors. Anticipated projects include shoulder widening, erosion control measures to mitigate impacts from monsoon season runoff and flash flooding influenced by climate variability studied by organizations such as the National Oceanic and Atmospheric Administration and the United States Geological Survey. Coordination with water and reservoir managers including the Salt River Project and stakeholders such as the Tonto National Forest administration and tribal authorities on the San Carlos Apache Indian Reservation will shape permit-driven work. Long-term corridor priorities may be affected by statewide transportation initiatives championed in plans linked to the Federal Highway Administration and Arizona’s participation in federal infrastructure packages.
SR 188 is functionally interwoven with major corridors including US 60, SR 87, SR 88, and I-10, serving as a connector between the Phoenix metropolitan area and eastern Arizona destinations such as Payson and Globe. The route supports tourism to natural attractions administered by the Arizona State Parks system, recreational enterprises linked to Canyon Lake marinas, and economic activity from the Globe–Miami mining district and associated transportation of ore and supplies. SR 188 also factors into emergency management and evacuation planning coordinated with agencies such as the Arizona Division of Emergency Management and the Federal Emergency Management Agency when events like wildfires affecting the Tonto National Forest or floods on the Salt River require route prioritization.
Category:State highways in Arizona