Tuesday, July 26, 2011

Blasts along SR 260 necessary in widening project

Some terrain is so rough and rocky that even heavy-duty machinery can’t break through.

That was the case last Thursday when ADOT crews used more than 7,000 lbs. of explosives to remove roughly 8,000 cubic yards of material along SR 260, about 20 miles east of Payson.

And, they’re not done, yet…

ADOT is working to widen the three-mile stretch of two-lane undivided roadway into a four-lane, divided highway. By the time this project finishes next fall, roughly one million cubic yards of dirt and rocks will have been removed.

Crews are using bulldozers and excavators where they can, but blasting is the only way to get through some the rockier spots.

For the blast in the video above, 179 holes were drilled and then filled with the 7,354 lbs of Ammonium Nitrate Fuel Oil, a type of explosive commonly used on projects like this. The blasts are set off with a charge from a wire detonated from a safe distance.

More blasting will be necessary for this project. Information on the regular, temporary closures scheduled for SR 260 can be found here.

Check back tomorrow for another video with additional details on this project and the improvements planned and even more explosive footage of the blast.
Posted by Angela DeWelles   |  Labels:  ADOT, Blasting-Operations, Construction, Demolition, Doubtful-Canyon, SR-260, Video


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 602.712.8946 or 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 al 602.712.8946 o 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.