OPPD said the chopper, operated by P&N Flight out of Marion, Iowa, was surveying transmission lines when the pilot had a mechanical problem with the tail causing the helicopter to spin.
The landing took place about 1.5 miles south of the Fort Calhoun plant on the west side of U.S. Highway 75.
OPPD and other utilities have been surveying the lines to look for weaknesses due to flood conditions.
“This is a regular event with them where they check lines and they get this company and they've used this company for three to four years and it's standard practice for the pilot to take an employee with them for observation and trouble shooting,” said Washington County Sheriff’s Department Capt. Tom Lamb. “Imagine the frequency of those, with the flooding has increased in those flights.”