Downtown’s Plaza is building a 3,500-seat arena on its roof to host the Las Vegas Wranglers hockey team.

The 45,000-square-foot fabric-shell structure will occupy the area that’s currently home to the Plaza’s tennis and basketball courts, plus the pool (the latter of which is slated to remain). As part of the deal, the fifth floor of the Plaza’s south tower will be converted to locker rooms, medical space and bathrooms.

The new insulated structure is expected to take five months to assemble, and will be home to additional midnight games to cash in on downtown’s thriving nightlife scene.

The new facility is expected to be ready for Wranglers league play by November and will also be used for public skating, concerts and other events.

New Book for TI: The Treasure Island sports book is undergoing a complete renovation. A temporary book will operate out of the poker room during construction. The new book is scheduled to open in June.

Mama Mia!: It’s been confirmed that Mama Mia!, the popular ABBA-inspired musical that was a resident at Mandalay Bay for 61/2 years, will return to Las Vegas in early May. The production’s home will be in the resort’s newly remodeled showroom, with tickets (which start at $64.90) already on sale for dates commencing May 8.

Keno at GVR: Green Valley Ranch has opened a live keno lounge. It’s near the poker room and operates daily from 8 a.m. to 11:30 p.m. It’s the second keno lounge development in a month, with a new room under construction at Rampart.

QUESTION: What is the big shiny complex on I-15 at the Nevada/California border?

ANSWER: It’s the new Ivanpah Solar Electric Generating System, just outside of the border town, Primm. The $2.2 billion complex is the largest solar power plant in the world, covering 5 square miles and using hundreds of thousands of mirrors to generate power.

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