The day before was 58 degrees with heavy rain all day, and down to zero by morning. Add in a foot of snow overnight and the Oswegatchie river was as high as it gets in the spring. The water was running at least 6-7 feet above normal, and had already dropped about 18" by the time we were there in the afternoon. There was a pretty big ice jam several hundred yard downstream of the trestle. The water and ice were backed up about 200 yards into the woods from the banks of the river. It was only 2 degrees, but made for a fun and quick snowshoes trek.