Chatfield Reservoir


Chatfield Dam and Reservoir is a dam and artificial lake located on the South Platte River, south of Littleton, Colorado. The dam and reservoir were built by the United States Army Corps of Engineers as a response to the disastrous flood of 1965. In addition to its primary purpose of flood control, it serves as one of many water supply reservoirs for the city of Denver, Colorado. In 1966, the U.S. Atomic Energy Commission projected a total federal cost of $74 million. Construction of the project was begun in 1967 and the dam was completed in 1975.
The massive breastworks of the dam measure approximately in length with a maximum height of the dam of above the streambed. The normal depth of the lake is at its deepest point. This means the dam towers above the mean surface of the reservoir.
The lake drains an area of more than 3,000 square miles. The 1,500 acre lake has a conservation storage capacity of with a flood-control pool of over

Chatfield State Park

The reservoir is surrounded by Chatfield State Park, a recreation area with boating, horseback riding and camping. A secondary inflow from the south is Plum Creek. A tertiary inflow from the west is Deer Creek.
There are 212 bird species that are frequently found at Chatfield Reservoir. These birds either permanently live there or just go there to rest after long migrations. There is a Chatfield bird watch list that anyone can access. The bald eagle, white pelican and burrowing owl have been seen.

Chatfield Reservoir Reallocation Project

The Chatfield Reservoir Reallocation Project, slated to begin in fall, 2017, will create an additional 20,600 acre feet of water storage in the reservoir, raising its level by about 12 feet. The project will require that some of the surrounding park's facilities be moved back from the new, higher lake levels.