EE was driving a 135-foot manlift. As EE approached the railroad crossing, the front tires of the manlift dropped into a swale before the crossing. The two front tires dropped first, then the two rear tires. This initiated the manlift basket to bounce EE causing EE to twist their arm as EE held onto the guard rail. EE sprained left elbow, placed on restricted duty 2/5/24.