Section 171.400 - Who is responsible for structures on a BIA irrigation project?(a) We may build, operate, maintain, rehabilitate or remove structures, including bridges and other crossings, on our irrigation projects.(b) We may build other structures for your private use during the construction or extension of an irrigation project. We may charge you for structures built for your private use under this section, and we may require you to maintain them.(c) If we require you to maintain a structure and you do not do so to our satisfaction, we may remove it or perform the necessary maintenance, and we will bill you for our costs.