Construction and maintenance of headgates, measuring devices and flumes

1. The owner or owners of any ditch or canal shall maintain to the satisfaction of the State Engineer a substantial headgate at or near the point where the water is diverted, which shall be of such construction that it can be locked and kept closed by the water commissioner. 2. Such owners shall construct and maintain, when required by the State Engineer, suitable measuring devices at such points along such ditch as may be necessary for the purpose of assisting the water commissioner in determining the amount of water that is to be diverted into the ditch from the stream, or taken from it by the various users. 3. Every owner or manager of a reservoir located across or upon the bed of a natural stream or of a reservoir which requires the use of a natural stream channel shall be required to construct and maintain, when required by the State Engineer, a measuring device of a plan to be approved by the State Engineer, below such reservoir, and a measuring device above such reservoir, on every stream or source of supply discharging into such reservoir, for the purpose of assisting the State Engineer or water commissioners in determining the amount of water to which appropriators are entitled and thereafter diverting it for such appropriators’ use. 4. When it may be necessary for the protection of other water users, the State Engineer may require flumes to be installed along the line of any ditch.