Lisa Telles has been named acting chief executive officer of the Orange County, Calif., Transportation Corridor Agencies’ 67-mile toll road system.

Telles will replace Thomas Margro, who resigned due to illness, while the agency searches for a permanent chief executive.

On Oct. 1, Telles, who is currently the chief communications officer, will take on the new role while continuing to handle her current duties.

“Lisa Telles has a vast knowledge of all aspects of the agencies and has acted as CEO on numerous occasions while I have been out of the office. Without a doubt, she is the right person to lead the agencies through the CEO transition process,” Margro said in a release.

Telles began her career as an intern with agencies in 1988, working her way into positions of increasing responsibility.

Margro joined TCA in 2007 as CEO.

The TCA are two joint-powers authorities formed by the California Legislature in 1986 to plan, finance, construct and operate Orange County’s 67-mile public toll road system.

It hasn’t been smooth sailing for the two agencies, each with more than two billion dollars in debt.

The San Joaquin Hills Transportation Corridor Agency’s debt was restructured under Margro but remains at junk levels, while plans to extend the route of the low-investment-grade Foothill/Eastern Transportation Corridor Agency have been stymied thus far.

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