Designed by the Los Angeles firm Adamson Associates, JUMP might be the most complicated construction project in Boise history. The building has five grids, each skewed in relation to the others. Crisscrossing spiral ramps run between third- and fourth-floor parking decks and a below-ground garage that will have as many as 640 parking spaces for the Simplot World Headquarters, which the company plans to build between now and 2016 on the southeast corner of 11th and Front streets.