State Route 88 (Apache Trail)

Overview

ADOT has reopened the 5-mile unpaved section of State Route 88 (Apache Trail) from Fish Creek Vista (milepost 222) to milepost 227 near Reavis Trailhead Road that was closed due to extensive roadway damage and rock debris following severe flooding in 2019.

The Woodbury Fire in June 2019 consumed almost 124,000 acres of the Tonto National Forest. In September 2019, a storm dumped approximately six inches of rain onto the fire scar and the runoff severely damaged large portions of the road, with the most damage being in the area between the Fish Creek Vista and milepost 227 (near Reavis Trailhead Road). The damage included a large rockslide that left that section of the road unpassable.

UPDATE

ADOT has completed the interim project to reopen State Route 88 (Apache Trail) from Fish Creek Vista (milepost 222) to milepost 227 near Reavis Trailhead Road.

ADOT invested $4 million for an interim project to restore limited access to five miles of SR 88 damaged by flooding in 2019, as it seeks funding for more extensive improvements needed to make the roadway more resilient and accessible long-term.

This interim plan was presented to the State Transportation Board at its Jan. 12, 2024, meeting and will restore the unpaved roadway to a condition that can accommodate vehicles with high clearance or four-wheel drive, as well as utility terrain vehicles. ADOT's interim plan called for removing boulders on Fish Creek Hill, mitigating rockfall as needed between Fish Creek Vista and Fish Creek Bridge (mileposts 222-223.5), making repairs to retaining walls, installing new signage, cleaning and potentially replacing damaged drainage culverts and taking other steps to safely reopen the highway for high clearance or four-wheel drive vehicles.

Maintenance crews worked on preliminary items ahead of the construction project like removing vegetation, filling in eroded areas in the road surface and cleaning out culverts. Contracted construction work began this summer. The U.S. Forest Service reviewed and approved the interim project design, since SR 88 follows an easement through federal land. In addition, the project was designed to meet all applicable state and federal environmental requirements.

2023 Study

In October 2023 ADOT completed a study, which recommended $33.7 million in improvements to make SR 88 more accessible and resilient to severe weather. Those improvements, developed with extensive public involvement and identified in a Design Concept Report, include:

• Chip sealing, in which aggregate is compacted into heated asphalt liquid to create a more durable road surface, throughout the 5 miles.
• Widening the roadway to 15 feet in steeper areas.
• Increasing drainage capacity to accommodate heavier rainfall.
• Rehabilitating or repairing existing bridges.
• Adding pullouts and other safety enhancements.

This longer-term plan does not have dedicated funding, and ADOT is pursuing federal funding to advance these longer-term improvements.

Background

State Route 88/Apache Trail was constructed in 1904 to provide construction access for the Roosevelt Dam, which was completed in 1911. Much of the route, particularly east of Tortilla Flat, retains its original historic character.

Aerial overview of SR 88.

Damage to SR 88 caused by the Woodbury Fire.

For More Information

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For real-time highway conditions statewide, visit ADOT’s Traveler Information Site at www.az511.gov, follow ADOT on Twitter (@ArizonaDOT) or call 511, except while driving.