From the record
“The Willow Creek Bridge, which brought a Pierce County, Nebraska road over Willow Creek, about 6.5 miles (10.5 km) miles south of Foster, Nebraska, was built in 1913. It was listed on the National Register of Historic Places in 1992.”
Wikipedia article Willow Creek Bridge, CC BY-SA 4.0.
One of 5 National Register listings published here for Pierce County · listed in 1992 · category: Structure · built in 1913.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service