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SR 88 (Apache Trail) improvement project completed

Drivers still need to use caution on historic, winding highway
November 19, 2018

PHOENIX – With a project to resurface the roadway and construct improvements along a 17-mile stretch of State Route 88 (Apache Trail) complete east of the Valley, the keys to safety on this historic, winding roadway remain obeying the speed limit, staying alert and not driving impaired.StateRoute88NewPavementADOTphotoFall2018

The Arizona Department of Transportation has finished $6.5 million worth of improvements that include paved vehicle pullouts, adjustments to several curves and replacement of some existing sections of old guardrail.

But these important safety improvements are no substitute for safe driving along a roadway that, due to the area’s topography, has always been designed for lower speeds.

In addition to primary posted speed limits ranging between 25 and 40 mph, drivers should heed slower advisory speed limits on signs and, now, painted on the roadway at points such as curves. Slower advisory speed limits range between 10 and 20 mph.

According to data provided to ADOT by law enforcement agencies, speed too fast for conditions was the most common driver violation in crashes along this stretch of SR 88 in 2017 and the first half of this year. Officers cited speed too fast in 40 percent of crashes. Violations cited in another 20 percent of crashes included failing to keep in the proper lane and driving in the opposing lane, passing in no-passing zones and following too closely.

About one of five crashes involved alcohol or drugs. 

SR 88 is a historic roadway that travels in part within the Tonto National Forest. The Apache Trail’s origin dates back more than 100 years as a route to transport materials, equipment and workers for construction of Roosevelt Dam.StateRoute88SpeedLimitOnPavementADOTphotoFall2018

The completed project also installed new raised pavement markers, centerline rumble strips to warn drivers if their vehicle is drifting into an opposing lane, and new signs. Crews also improved the ride along SR 88 by resurfacing the highway starting 3 miles northeast of Apache Junction and extending to 7 miles beyond Tortilla Flat.

Improvements started in fall 2017 and included the removal of several large and potentially unstable boulders above the highway.

For more information about ADOT’s state highway improvement projects visit


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Pursuant to Title VI of the Civil Rights Act of 1964, the Americans with Disabilities Act (ADA) and other nondiscrimination laws and authorities, ADOT does not discriminate on the basis of race, color, national origin, sex, age, or disability. Persons that require a reasonable accommodation based on language or disability should contact ADOT’s Civil Rights Office at Requests should be made as early as possible to ensure the State has an opportunity to address the accommodation.

De acuerdo con el Título VI de la Ley de Derechos Civiles de 1964, la Ley de Estadounidenses con Discapacidades (ADA por sus siglas en inglés) y otras normas y leyes antidiscriminatorias, el Departamento de Transporte de Arizona (ADOT) no discrimina por motivos de raza, color, origen nacional, sexo, edad o discapacidad. Las personas que requieran asistencia (dentro de lo razonable) ya sea por el idioma o discapacidad deben ponerse en contacto con la Oficina de Derechos Civiles de ADOT en Las solicitudes deben hacerse lo más antes posible para asegurar que el Estado tenga la oportunidad de hacer los arreglos necesarios.