Department of Energy. INL and its contractors are a major economic engine for the Idaho Falls area, employing more than 8,000 people between the desert site and its research and education campus in Idaho Falls. Among other projects, INL operates and manages the world-famous Advanced Test Reactor (ATR). Geography According to the United States Census Bureau, the city has a total area of , of which, , 98% is land and 0.45 square miles (1.17 km2, 2%) is water. Natural disasters are rare in the area, although an F2 tornado hit the Idaho Falls area on April 7, 1978, causing up to $5 million in damage. River Walk Idaho Falls has an extensive river walk trail featuring running and bike trails, art installations, and points of interest along several miles of the Snake River. It is maintained by the city and periodically receives donations and grants that allow for expansion. Neighborhoods Notable Idaho Falls neighborhoods include: Downtown - Historic downtown Idaho Falls sits on several blocks of the original townsite along the east side of the river. It features restaurants, plazas, shops, and cultural amenities including the Museum of Idaho, Colonial Theatre, Art Museum of Eastern Idaho, Idaho Falls Public Library, and Japanese Friendship Garden. It is home to the Idaho Falls Farmers' Market and many other community events. The Numbered Streets - The numbered streets area was the first planned neighborhood in Idaho Falls. The streets run west and east between South Boulevard and Holmes Avenue. Traffic on the odd-numbered streets travels east, and west on the even-numbered streets. Kate Curley Park is located in the neighborhood, as is the Wesley W. Deist Aquatic Center and the Eleventh Street Historic District. West Side - The West Side houses Idaho Falls Regional Airport and I-15. It has retained more of a small-town feel than the east side, which has grown and developed much more rapidly since the 1980s. Snake River Landing - SRL is a large, mixed-use development on the west side of the river near I-15, which includes residential, restaurant, park, and community event space, including a planned mid-sized indoor arena. It now hosts the Melaleuca Freedom Celebration, a large Independence Day event. Climate Idaho Falls experiences a humid continental climate with warm summers and cold winters (Köppen Dfb). Precipitation is relatively sparse, but not low enough to classify the climate as semi-arid. Demographics 2010 census As of the