With the redevelopment of Las Vegas and the opening of two casinos in Connecticut in the early 1990s, along with newly built casinos in the nearby Philadelphia metro area in the 2000s, Atlantic City's tourism began to decline due to its failure to diversify away from gaming. Determined to expand, in 1999 the Atlantic City Redevelopment Authority partnered with Las Vegas casino mogul Steve Wynn to develop a new roadway to a barren section of the city near the Marina. Nicknamed "The Tunnel Project", Steve Wynn planned the proposed 'Mirage Atlantic City' around the idea that he would connect the $330 million tunnel stretching 2.5 miles (4.0 km) from the Atlantic City Expressway to his new resort. The roadway was later officially named the Atlantic City-Brigantine Connector, and funnels incoming traffic off of the expressway into the city's marina district and Brigantine, New Jersey.

Atlantic City's tourism began to decline due to what failure?