The activities director at Southeast Polk High School was arrested Saturday night with a blood alcohol content more than twice the legal limit to drive, authorities said.
Kent Allan Horstmann, 52, Altoona, was charged with OWI. It was his first offense.
A Polk County deputy pulled Horstmann over on 8th Street Southwest around 11 p.m. Saturday for reckless driving, authorities said.
He reportedly swerved onto a shoulder of the road and swayed between the lines when in his lane, police said.
Horstmann reportedly had blood-shot, watery eyes and slurred speech. The deputy said he admitted to having a couple drinks and had difficulty locating his insurance card and registration.
The deputy asked Horstmann to perform two field sobriety tests, which he failed, and offered him a preliminary breath test at the scene, which he refused, authorities said.
A breath test at the Polk County Jail showed his blood alcohol content was .169. The legal limit to drive in Iowa is .08.
He was booked into the Polk County Jail and later released.
Online court records show no previous criminal history in Iowa other than three traffic citations in the past 18 years.