Reservoirs

A calm lake reflects the sky under dramatic cloud formations during sunset.

Gravel Pit Reservoir

Water storage in reservoirs is essential to the operation of 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 gravel pit reservoirs, from as far west as Windsor, east to Kersey, and south to Fort Lupton. Of particular pride is Central’s Siebring Reservoir, a former gravel pit that 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.

Aerial view of ponds in a landscape with bare land and greenery, possibly indicating industrial or water management areas.

Bernhardt Reservoir Complex

Decreed Capacity: 618 Acre Feet
Source: Big Thompson River and Little Thompson River
Appropriation Date: 11/19/2002
Owned by: CCWCD/GMS

A lakeside area with a boat ramp, parked cars, trees, and distant mountains in the background.

Chatfield Reservoir

Decreed Capacity: 5,274 Acre Feet
Source: South Platte River & Plum Creek
Appropriation Date: 1983, 2015
Owned by: CCWCD

Aerial view of a large, rectangular pond with a small island in the center, surrounded by rural landscape and additional smaller ponds.

Hokestra Reservoir

Decreed Capacity: 739 Acre Feet
Source: Boulder Creek & Saint Vrain River
Appropriation Date: 2017
Owned by: GMS

Aerial view of multiple blue water reservoirs surrounded by land and some structures.

Geisert Reservoir

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

Aerial view of a lake surrounded by greenery and houses, with a path running alongside.

JoDee Reservoir

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

A small pond with surrounding vegetation and a distant horizon under a partly cloudy sky.

Koenig Reservoir

Decreed Capacity: 650 Acre Feet
Source: South Platte River
Appropriation Date: 1992
Owned by: GMS

Aerial view of a large pond or reservoir surrounded by homes, fields, and sparse vegetation under a clear blue sky.

La Poudre Reservoir

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

Aerial view of a vast construction site with dirt roads, patches of grass, and several bodies of water under a clear blue sky.

Nissen Reservoir

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

A sandy, barren landscape with rolling hills and a cloudy sky.

Pioneer Reservoir

Decreed Capacity: 1,800 Acre Feet
Source: South Platte River
Appropriation Date: 2019
Owned by: GMS

Tall grasses in the foreground with a calm body of water and distant trees under a clear sky.

Rinn Valley Reservoir Complex

Decreed Capacity: 2,586 Acre Feet
Source: Boulder Creek
Appropriation Date: 2005, 2016
Owned by: CCWCD

An aerial view of two rectangular ponds surrounded by fields and vegetation.

Siebring Reservoir Complex

Decreed Capacity: 1,325 Acre Feet
Source: Cache la Poudre River
Appropriation Date: 1988, 1992
Owned by: CCWCD

A calm lake reflecting clouds and mountains, with a dirt path in the foreground.

Shores Reservoir

Decreed Capacity: 4,500 Acre Feet
Source: Boulder Creek
Appropriation Date: 2000, 2002
Owned by: CCWCD & WAS

A house near a winding road, with a lake and trees in the background.

83rd Avenue

Decreed Capacity: 164 Acre Feet
Source: Cache la Poudre River
Appropriation Date: 1994
Owned by: GMS

Gravel Pit Reservoir

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