RESERVOIRS
About Us

Water Storage
Water storage in reservoirs is essential to operating an augmentation plan along the South Platte River. During times of free river, or when our surface rights are in priority, we can fill reservoirs and then release the water back to the river during times of high need. To that end, Central has constructed numerous reservoirs and gravel pit storage ponds, from as far west as Windsor, east to Fort Morgan, and south as far as Brighton. Of particular pride is Central’s Siebring Reservoir, which is the former gravel pit and is now the world’s first slurry wall-lined storage reservoir.
Constructed in partnership with Hall Irwin Construction, the unique lining made from bentonite clay allows for below-grade storage with minimal groundwater interaction. This same technology is now being used around the world. Central’s gravel pit-lined storage ponds include La Poudre, Koenig, Nissen, JoDee, Bernhardt, and 83rd Avenue.

Bernhardt Reservoir Complex
Decreed Capacity: 618 Acre Feet
Source: St. Vrain
Appropriation Date: 11/19/2002
Owned by: CCWCD/GMS

Chatfield Reservoir
Decreed Capacity: 5,274 Acre Feet
Source: South Platte River
Appropriation Date: 1983, 2015
Owned by: GMS

Hokestra Reservoir
Decreed Capacity: 739 Acre Feet
Source: Boulder Creek via Rural Ditch
Appropriation Date: 2017
Owned by: GMS

Geisert Reservoir
Decreed Capacity: 1,257 Acre Feet
Source: Cache la Poudre River
Appropriation Date: 2012
Owned by: CCWCD

JoDee Reservoir
Decreed Capacity: 261 Acre Feet
Source: Cache la Poudre River
Appropriation Date: 1992
Owned by: CCWCD

Koenig Reservoir
Decreed Capacity: 650 Acre Feet
Source: Boulder Creek through Rural Ditch
Appropriation Date: 1992
Owned by: GMS

La Poudre Reservoir
Decreed Capacity: 782 Acre Feet
Source: Cache la Poudre River
Appropriation Date: 1994
Owned by: CCWCD

Nissen Reservoir
Decreed Capacity: 1.043 Acre Feet
Source: South Platte River
Appropriation Date: 2002
Owned by: GMS

Pioneer Reservoir
Decreed Capacity: 1,800 Acre Feet
Source: South Platte River via Plumb Ditch
Appropriation Date: 2019
Owned by: GMS

Rinn Valley Reservoir Complex
Decreed Capacity: 2,586 Acre Feet
Source: St. Vrain via Rural Ditch
Appropriation Date: 2005, 2016
Owned by: CCWCD

Siebring Reservoir Complex
Decreed Capacity: 1,325 Acre Feet
Source: Cache la Poudre via Jones Ditch
Appropriation Date: 1988, 1992
Owned by: CCWCD

83rd Avenue
Decreed Capacity: 164 Acre Feet
Source: Cache la Poudre via Jones Ditch
Appropriation Date: 1994
Owned by: GMS