520-ton oversize load slowly makes its way through AZ - CBS 5 - KPHO

520-ton oversize load slowly makes its way through AZ

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It’s a long, arduous trek across Arizona for a transformer bound for Yuma. After all, it can only go a maximum speed of 10 mph. (Source: Arizona Department of Transportation) It’s a long, arduous trek across Arizona for a transformer bound for Yuma. After all, it can only go a maximum speed of 10 mph. (Source: Arizona Department of Transportation)
(Source: Arizona Department of Transportation) (Source: Arizona Department of Transportation)
PHOENIX (CBS5) -

At nearly 17 feet tall, 20 feet wide, 350 feet long and roughly 520 tons, you can't expect express delivery.

So it's a long, arduous trek across Arizona for a transformer bound for Yuma.

After all, it can only go a maximum speed of 10 mph.

The Arizona Department of Transportation helped map out special routes for the truck from New Mexico carrying the transformer that checks in at 1,040,500 pounds and is supported by 25 axles, ADOT said.

The transformer crossed into Arizona from New Mexico on March 18 and had made its way to Casa Grande by Thursday.

At 10 p.m. Thursday, the haul left Casa Grande, and at its snail pace, was making its way toward Interstate 10 at Salome Highway in Tonopah by Friday morning.

The transformer traveling through Arizona is taking a long way to Yuma in order to avoid major highways and interstates, an ADOT spokesman said.

A special permit application asks the hauler to specify certain routes and technical information, such as number of axles to spread the weight, to ensure that roads can handle the heavy loads

"It's about making sure the infrastructure doesn't get damaged along the route," ADOT Transportation Engineering Permit Technician Chris Pippin said.

Because of its size and slow speed, the transformer is, for the most part, avoiding major freeways and interstates, ADOT said.

The route mainly includes secondary highways.

The truck is only allowed to travel at night to avoid daytime traffic and is accompanied by front and rear escorts (pilot cars) and four Department of Public Safety officers on the entire route, the spokesman said.

It had to travel on I-10 for just a small portion of the trip near Benson, and because of its size, it headed west on the eastbound lanes.

That happened Sunday, and required a closure of the road.

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