Today’s the first day of work for new HART CEO Dan Grabauskas.

The former Massachusetts transit chief was confirmed last month and takes over the Honolulu project from Toru Hamayasu, who’s staying on in a senior leadership position. That’s the two of them standing together next to Sen. Daniel Inouye in Washington recently.

I’ll have an interview with Grabauskas soon. Until then you can read Civil Beat‘s detailed coverage of his background and challenges:

• HART Taps New Rail Chief: Grabauskas from Boston
• Honolulu Rail CEO Pick Comes With Track Record That Raises Concerns
• New Honolulu Rail Chief Was Late, Over Budget on His Biggest Project
• Honolulu Rail CEO Nominee Has Extensive Public Sector Background
• Grabauskas OK’d As Rail Chief Despite Soft Spot For Toru Hamayasu
• Line of Credit ‘Big Piece’ Outstanding in Federal Rail Funding