After long delays, officials plan to break ground on the $520 million Marriott Marquis on Ninth Street and Northwest in Washington, D.C., adjacent to the Walter E. Washington Convention Center, according to The Washington Post.

The 1,175-room convention center hotel project has spanned 19 years, three mayoral administrations and various lawsuits. The hotel, which is being developed by Quadrangle Development Corp., Washington, D.C., and Capstone Development LLC, Washington, D.C., is set to be completed in spring 2014.

Currently, guests for major conventions in D.C. stay in more than 40 hotels. Martin Sirk, chief executive of the International Congress and Convention Association, says D.C. faces a challenge of high demand for hotel rooms when Congress is sitting.

“It’s not always easy for international buyers to obtain large enough room blocks at attractive prices as early as they would like,” Sirk says.

The project reportedly will produce 1,500 construction jobs and another 1,000 permanent ones. Gregory O’Dell, chief executive and president of the Washington Convention Center Authority, expects the city to benefit from the hotel.

“We expect some reasonable increment of economic impact for the city,” O’Dell says. “I mean, right now we have 1 million visitors coming through our doors and they generate about $400 million of economic impact. We would expect probably at least 50 to 100 million in incremental impact beyond that with the hotel.”