Nassau County Executive Edward Mangano is revving up plans to build a privately funded, electric-powered go-kart racetrack on vacant land just off Museum Row in East Garden City.

The track -- which would be Nassau's first -- could be an outdoor or indoor facility and is expected to attract teens and young families, said Nassau Deputy County Executive Rob Walker.

"There are several similar go-kart tracks in Suffolk and they are very popular," Walker said. "This would allow us to create another entertainment option here in Nassau."

Legislative Minority Leader Kevan Abrahams (D-Freeport) said he supports the concept of expanding county recreational activities, but argues Mangano, a Republican running for re-election, has yet to develop a comprehensive vision for redeveloping central Nassau.

"I'd prefer to see Mangano's plan for the entire Mitchel Field complex, rather than this piecemeal approach," Abrahams said.

"It demonstrates his lack of vision and planning for Nassau's future," he added.

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Mangano spokesman Brian Nevin responded that for a decade "the Democrats daydreamed about grandiose plans, yet none of them ever materialized."

The county released a request for proposals to construct, operate and maintain the facility earlier this month; bids are due by Aug. 21.

Several developers have expressed interest in bidding, Walker said. Construction could begin later this year.

The track would be built on a 2-acre tract located behind the Long Island Children's Museum. The site is occupied by a vacant two-story brick building that was once used as the living quarters for noncommissioned officers when Mitchel Field served as an Air Force base.

The county would lease the land to the developer, and the arrangement would face county legislature approval.

A spokeswoman for Presiding Officer Norma Gonsalves (R-East Meadow) said she had not seen the plans and declined to comment.

Republicans control the legislature by a 10-9 majority.