Hermiston Municipal Airport is a city-owned, public-use airport located two nautical miles (3.7 km) southeast of the central business district of Hermiston, in Umatilla County, Oregon, United States.Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, this airport is assigned HRI by the FAA and HES by the IATA.Facilities and aircraftHermiston Municipal Airport covers an area of 267acre at an elevation of 644 feet (196 m) above mean sea level. It has one runway designated 5/23 with an asphalt surface measuring 4,500 by 75 feet (1,372 x 23 m).For the 12-month period ending May 1, 2004, the airport had 24,850 aircraft operations, an average of 68 per day: 98% general aviation, 2% air taxi, and <1% military. At that time there were 42 aircraft based at this airport: 81% single-engine, 9.5% multi-engine and 9.5% ultralight.
