The Platte River Basin Plan considers reservoirs within Wyoming’s Platte River Basin that have been permitted by the Wyoming State Engineer’s Office (SEO) for beneficial uses other than livestock watering. Reservoirs permitted for livestock watering are typically very small and are therefore not included in the Basin Plan.
Basin Plan information regarding reservoirs and water use from storage is organized on the basis of the following reservoir categories:
- Federal Reservoirs;
- Non-Federal Reservoirs reservoirs that have permitted capacities greater than 1,000 acre-feet (referred to as ômajor or large reservoirsö) or that, though permitted to store less than 1,000 acre-feet, are of particular importance; and
- Non-Federal, non-stock reservoirs that have permitted capacities between 50 acre-feet and 999 acre-feet (referred to as ôsmall reservoirsö).
The Platte River Basin Plan contains publicly-available information regarding Federal Reservoirs and large reservoirs including:
- Storage capacities;
- Physical characteristics;
- Operational data; and
- Estimated reservoir evaporation.
Platte River Basin Plan information regarding small reservoirs consists of a tabulation of Wyoming State Engineer’s Office (SEO) permit data and is not included in this Water Atlas.
The Horse Creek subbasin contains no Federal Reservoirs and five large Non-Federal Reservoirs.