PHOENIX -- Crews have started to dismantle some of the tents in a controversial outdoor jail complex in Phoenix that helped make former Sheriff Joe Arpaio a national law enforcement figure.

One of the five jail yards within "Tent City" has already been completely dismantled, and workers on Wednesday were in the process of tearing down a second yard.

Sheriff Paul Penzone, who ousted Arpaio last year and announced plans seven weeks ago to tear down the complex, said the closure of the tents is about improving the county's jails.

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"It's about professionalism," Penzone told reporters. "It's about effectiveness, so that we can run a fundamentally sound and safe facility that is not a burden to the taxpayers or our partners -- where lawsuits are mitigated (and) hopefully avoided."

In this Feb. 4, 2009 file photo, Maricopa County Sheriff Joe Arpaio, left, orders approximately 200 convicted illegal immigrants handcuffed together and moved into a separate area of Tent City, for incarceration until their sentences are served and they are deported to their home countries, in Phoenix. AP

Tent City was opened in 1993 by Arpaio to ease jail overcrowding and helped make him a national law enforcement figure. But it was criticized for serving as a media promotion tool for Arpaio and contributing to a culture of cruelty within the jails.

A jury awarded a $948,000 verdict in favor of an inmate for permanent brain damage he suffered in 1996 when several hooded inmates pulled him from his Tent City bunk as he was sleeping, kicking and hitting him.

Workers removed the olive drab canvas from the tents on Wednesday and used saws to cut the metal frames that supported the cloth. In the yard was being dismantled, all that remained on about a dozen tents were concrete slabs and metal bunk beds.

Bunk beds sit exposed where tents used to shade them as a guard tower looms over the yard in the Maricopa County Tent City Jail, on Wed., May 24, 2017, in Phoenix. Crews have started to dismantle some of the tents in the controversial outdoor jail complex that's in the process of being closed by the metro area's new sheriff. AP

The sheriff's office said it started dismantling the tents last week. It's unclear when the closure of the complex will be completed.

Half of the 700 to 800 inmates within the complex have already been moved to other jails. Officials say the remaining inmates will be moved in the coming months.

The new sheriff said the closure will produce $4.5 million savings annually.

Maricopa County Sheriff personnel break down a tent in the Tent City Jail, on Wed., May 24, 2017, in Phoenix. Crews have started to dismantle some of the tents in the controversial outdoor jail complex in Phoenix that's in the process of being closed by the metro area's new sheriff. AP

Penzone is pursuing the option of turning the complex into a detention space where inmates would work with shelter animals in a bid to teach the prisoners compassion and discourage them from committing future crimes.

The sheriff's office has operated a unit since 2000 that serves as a no-kill shelter for animals victimized in abuse cases and lets some inmates care for the animals in a bid to encourage personal responsibility.

Penzone said he is exploring other ideas for the space, but declined to specify those options.