The Iowa Army Ammunition Plant (IAAAP), located in Des Moines County in southeastern Iowa, near the city of Burlington, produces and delivers component assembly, and medium- and large-caliber ammunition items for the United States Department of Defense using modern production methods in support of worldwide operations. The facility is part of the US Army Joint Munitions Command.

The 19,011 acre plant is located at 17571 DMC Highway 79, Middletown, Iowa; 8 miles west of Burlington, Iowa.

The IAAAP was established in November 1940, as the Iowa Ordnance Plant and started production in 1941. Production was stopped in 1945, when World War II ended. The plant resumed its ammunition manufacturing mission in 1949. In 1950, in response to the Korean conflict, production increased dramatically. In 1975, the Army assumed responsibility for IAAAP.

IAAAP is housed on 19,011 acres with 767 buildings, 271 igloos and storage capacity of 1,100,775 square feet. It also has 143 miles of roads and 102 miles of railroads. The installation has a government staff of 25 Department of the Army civilians and one soldier to provide contract oversight. The government staff has a payroll budget of $2.5 million. It is a government-owned, contractor-operated facility and since contractor statistics are considered proprietary they are unavailable. American Ordnance LLC, a subsidiary of Day & Zimmerman, is the primary corporation operating IAAAP.

• 40mm High Velocity Family
• 155mm Artillery
• 120mm Tank Rounds
• 60mm/81mm/120mm Mortar Prop Charges
• M112 Charges/MICLIC (Mine-Clearing Line Charge)
• 75mm/105mm Salute Rounds
• TOW/Hellfire/Javelin/Stinger/ Sidewinder Warheads
• Medium- and Large-Caliber Mortars
• Pressured and Cast Warheads
• Smart-Munitions Mines/Scatterable Mines
• Missile Assembly/Missile Warheads
• Rocket-assisted Projectiles
• Spider Grenades
• Demo Charges
• Detonators
• Salute Rounds
• Test Ranges
• Insensitive Munitions
• Development

In August 1989, IAAAP was placed on the National Priorities List (NPL), because explosives had caused surface water contamination beyond the installation boundary. A Restoration Advisory Board keeps the public informed and involved in its clean-up activities. A Restoration Advisory Board is in place. As of 2021, in its Fourth Five-Year Review Report. A March 2020 an area of potential Interest was identified within the OU-1 boundary, a fire training pit where the military used aqueous Film-Forming Foam for firefighting training, and PFOA, PFBS, and PFOS and potential exposure pathways need to be evaluated.

•  This article incorporates public domain material from the United States Army

• Official website
• Historic American Engineering Record (HAER) No. IA-13, "Iowa Army Ammunition Plant, Middletown, Des Moines County, IA", 73 data pages

40°47′26″N 91°14′41″W / 40.79056°N 91.24472°W / 40.79056; -91.24472