Hydraulics Annex One Location: University of Iowa Research Park, 2310 Old Farmstead Rd., Coralville, IA 52241 Building Locator Map Hydraulics Annex One (HA1) has since 1979 provided unobstructed open space for very large models. Amenities include overhead doors at each end of the building and a sump with a capacity exceeding 50,000 gallons and up […]