Northcentral District Projects

US 89A Box Culvert Extension


The US 89A Box Culvert Extension project is widening five box culverts within an eight-mile segment of US 89A near Vermillion Cliffs (milepost 540 – 548). This project is expanding these drainage facilities in preparation for a future roadway improvement project in the area. All work will be performed within ADOT right-of-way and is anticipated to be completed summer, 2017.

Traffic Alerts

Motorists traveling along US 89A near Vermillion Cliffs will encounter two temporary traffic signals to allow for alternating lanes of travel while the box culvert extension project is underway.

The temporary traffic signals are in place at all times and will be moved from west to east within the project limits as construction progresses. There is potential for stop-and-go traffic along US 89A at the signal locations. A 12-foot width restriction also is in place.

ADOT works to inform the public about planned highway restrictions and closures, but it’s possible that unscheduled impacts might occur because of weather or other factors. For the most current information about highway conditions statewide, visit ADOT’s Travel Information Site at, follow ADOT on Twitter (@ArizonaDOT) or call 511, except while driving.

Civil RightsTitle VI of the Civil Rights Act of 1964, and the Americans with Disabilities Act (ADA)

Pursuant to Title VI of the Civil Rights Act of 1964, and the Americans with Disabilities Act (ADA), ADOT does not discriminate on the basis of race, color, national origin, age, sex 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 y la Ley de Estadounidenses con Discapacidades (ADA por sus siglas en inglés), el Departamento de Transporte de Arizona (ADOT por sus siglas en inglés) no discrimina por raza, color, nacionalidad, edad, género o discapacidad.  Personas que requieren asistencia (dentro de lo razonable) ya sea por el idioma o por discapacidad deben ponerse en contacto con la Oficina de Derechos Civiles en Las solicitudes deben hacerse lo más pronto posible para asegurar que el equipo encargado del proyecto tenga la oportunidad de hacer los arreglos necesarios.