Flagpole installation inSioux City, IA

Flagpoles in Sioux City

A meatpacking, food-processing and freight city at the head of Missouri River navigation, built into the Loess Hills where Iowa, Nebraska and South Dakota meet. We cover Sioux City and the Woodbury County area, including downtown and the Fourth Street historic district, the Sergeant Floyd Monument on its bluff, the riverfront at Chris Larsen Park, Morningside University and Briar Cliff University, Sioux Gateway Airport with the 185th Air Refueling Wing and the Interstate 29 and Highway 75 frontage.

Wind here. Sioux City sits in an open and unsheltered Loess Hills area, which works out to roughly 110 mph under the code your town uses. That figure decides how wide and how thick the pole has to be, so we check it against your address before we quote. Sioux City is built into the Loess Hills, and the loess decides more here than the wind figure does. It is wind-blown silt, piled deep enough to make hills of it, and it does two opposite things: it will stand in a near-vertical face while it is dry, and it loses its grip almost entirely once water is in it. So a footing on a bluff lot is drawn around the soil and around where the water goes rather than taken off a depth table, and we want the ground shedding away from the base. Down on the Missouri bottoms west and south of downtown you are on river alluvium instead, with groundwater not far below, and the same pole usually wants a wider footing there than it would up the hill.

Most of the people who call us from Sioux City are meat and food processing plants, freight and distribution buildings, hospitals and clinics, city and county buildings, university campuses, schools, churches, veterans posts and riverfront commercial.