Traffic backs up in the northbound lanes of Interstate 15 in Las Vegas on Wednesday, March 7, 2018, as the “Main Event,” the $1 billion reconfiguration of the Spaghetti Bowl interchange, enter …

Traffic backs up in the northbound lanes of Interstate 15 in Las Vegas on Wednesday, March 7, 2018, as the “Main Event,” the $1 billion reconfiguration of the Spaghetti Bowl interchange, entered its third day. (Bizuayehu Tesfaye/Las Vegas Review-Journal) @bizutesfaye