(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.

You may build a structure on our irrigation facility for your private use or take responsibility of one of our structures, but only under a written agreement between you and us which:

(a) Relieves us from any future liability or responsibility for the structure;

(b) Relieves us from any future costs incurred for maintaining the structure;

(c) Describes what is granted by us and accepted by you; and

(d) Provides that if you do not regularly use a structure for a period of time that we have determined, or you do not properly maintain and rehabilitate the structure, we will notify you in writing that:

(1) You must either remove it or correct any unsafe condition;

(2) If you do not comply with our notice, we may remove the structure and you must reimburse us our costs; and

(3) We may modify, close, or remove your structure without notice due to an urgency we have identified.

Yes. Fences are considered structures and may be installed in compliance with § 171.405.

No. You may not place obstructions on BIA irrigation projects.

(a) If you do so, we will notify you in writing that you must remove it.

(b) If you do not remove your obstruction in compliance with our notice, we will remove it and we will bill you for our costs.

(c) We can remove your obstruction without notice because of an urgency we have identified.

No. Sewage, trash, or other refuse are considered obstructions and must be removed in accordance with § 171.415.