Here is the latest Iowa news from The Associated Press at 3:45 a.m. CDT

WAVERLY, Iowa (AP) — A long-closed century-old bridge in the northeast Iowa city of Waverly has been added the National Register of Historic Places. The State Historic Preservation Office announced the move Monday. The Courier says that office oversees the National Register of Historic Places program in Iowa in conjunction with the National Park Service. Built in 1917, the bridge spans the Cedar River in southeast Waverly.

OTTUMWA, Iowa (AP) — Police have arrested a southeastern Iowa sixth-grade teacher accused of sending sexually-charged messages and pictures to a 13-year-old former student. The Ottumwa Courier reports that police arrested 35-year-old Zachary Barr, of Ottumwa, on Monday. Barr is a sixth-grade teacher at Evans Middle School, but school district officials said Tuesday he had been place on administrative leave.

DOON, Iowa (AP) — BNSF Railway says it’s reopened a track where 32 tank cars derailed, spilling thousands of gallons of crude oil in northwest Iowa. Spokesman Andy Williams says a train ran down the repaired line near Doon around 10 p.m. Monday. He says much of the estimated 230,000 gallons spilled is contained to a small triangular area between the track and two nearby roads. Hazardous materials and environmental experts are using skimmers to recover additional oil.

MOUNT PLEASANT, Iowa (AP) — A judge has convicted a man accused of killing his wife, who disappeared nearly 18 years ago in southeast Iowa. Judge Mark Cruse rendered a first-degree murder verdict Monday on Michael Syperda. The nonjury trial ended May 7. Syperda was charged in December with first-degree murder in the disappearance of Elizabeth Syperda. He was arrested in late November in Colorado, where he had moved.