Water for a Thirsty West
Posted by: Groundspeak Premium Member brwhiz
N 44° 04.536 W 103° 29.385
13T E 620929 N 4881378
Quick Description: This Historical Marker is located on the west side of US Highway 385 in the scenic overlook at the north end of the Pactola Dam spillway, near Johnson Siding, South Dakota.
Location: South Dakota, United States
Date Posted: 2/11/2013 7:00:05 PM
Waymark Code: WMGBXW
Published By: Groundspeak Regular Member GPX Navigators
Views: 2

Long Description:
Water for a Thirsty West

The Rapid Valley Unit & Project

By the mid-20th century, water in the West did more than irrigate 160 acre patches of alfalfa. Water flowed as the life blood of cities, private industries, and military bases. Droughts during the 1930s illustrated that Rapid City could not depend on surrounding springs as the foundation of a municipal water supply.

In 1942, the War Department broke ground on Ellsworth Air Force Base northeast of the city. The additional 5,000 military personnel strained the city's water supply. This pressure on the community's limited water resources and the need for irrigation water brought the local leadership to Reclamation for help. The Federal response was the construction of Deerfield Dam in 1945 and Pactola Dam in 1952.

The Rapid Valley Unit and Project
The Rapid Valley Unit consists of Pactola Dam and Reservoir on Rapid Creek. The Rapid Valley Project includes Deerfield Dam and Reservoir located on Castle Creek, an upstream tributary to Rapid Creek. The Unit is a part of the Pick-Sloan Missouri Basin Program, a comprehensive water development plan for the Missouri River basin created in 1944.

The two reservoirs provide supplemental irrigation water for 8,900 acres of farmland in the Rapid Valley Water Conservancy District and municipal and industrial water for Rapid City, including Ellsworth Air Force Base. They also provide flood control benefits for Rapid City and areas along Rapid Creek. Recreation and fish and wildlife benefits are provided through cooperative efforts between Reclamation and other federal and state agencies. The visitor center at the far end of the dam provides additional recreation and historical information.

The Bureau of Reclamation was created in 1902 to provide water projects for the development of the American West. Heavy snowmelt and spring rains often resulted in early flooding followed by hot, dry summers with too little moisture for successful farming or even domestic needs. There was a need to store the surplus spring moisture to prevent flooding and to provide water for use during the dry summer months.

Today Reclamation manages, develops, and protects water and related resources in an environmentally and economically sound manner in the interest of the American public and:
• serves as the fifth largest electric utility in the 17 Western States and the nation's largest wholesale water supplier,
• provides 1 out of 5 Western farmers (140,000) with irrigation water for 10 million farmland acres that produce 60 percent of the nation's vegetables and 25 percent of its fruit and nuts,
• operates 58 hydroelectric powerplants averaging 42 billion kilowatt-hours annually,
• delivers 10 trillion gallons of water to more than 31 million people each year,
• manages in partnership 308 recreation sites visited by 90 million people a year.

Marker Name: Water for a Thirsty West

Marker Type: Roadside

Marker Text:
See Long Description

Visit Instructions:
A photo of the 'Marker' or 'Plaque' is required to identify the location, plus a picture of the 'Historic Site'. If you do not post a photo your log will be deleted.
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