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John Redmond Reservoir

Introduction

 

John Redmond Reservoir is a Corps of Engineers lake located in east-central Kansas, in the Neosho River Basin (figure 12)(KWO, 2014). The John Redmond Reservoir watershed encompasses an area of 3,015 square miles and includes parts of Butler, Chase, Coffey, Greenwood, Harvey, Lyon, Marion, McPherson, Morris, Lyon, Osage, and Wabaunsee counties (figure 13)(Juracek, 2010). Land use in the John Redmond watershed consists of, 72% grasslands, 21% crop production, with the remaining 7% consisting of woodland, water, urban, and other areas (figure 13)(Juracek, 2010).

 

The construction of a reservoir in the Neosho River Valley was authorized by Congress in 1950 for flood control purposes (KBS, 2007). In 1958 congress named the project the John Redmond Dam and Reservoir after the late editor of the Burlington Daily Republic (U.S. Army Corps of Engineers, 2014). Redmond was a vocal proponent of flood control and water conservation along the Neosho River (USACE, 2014). Before construction could begin on the reservoir the town of Strawn had to be moved 6 miles to the east, as the former townsite was to be inundated by the reservoir (KBS, 2007). Construction of the reservoir finally began in 1959, with all major construction being completed by December 1965 (KBS, 2007). Prior to construction of the reservoir, the Neosho Valley had flooded a total of 57 times in 34 years (KBS, 2007). The worst flood came in 1951 when floodwaters ran up to 30 feet deep, and one-third million acres were inundated (KBS, 2007). The reservoir is also federally authorized for water supply, water quality, recreation, as well as fish and wildlife conservation (KWO, 2014).

 

 

Figure 12. Map of the Neosho River Basin (KWO, 2014)

Figure 13. Map of land use practices in the John Redmond Reservoir watershed (Juracek, 2010)

 

Sediment

 

The original storage capacity survey of John Redmond Reservoir was conducted by the Corps of Engineers in 1963 (KBS, 2014). The survey indicated the storage capacity of the reservoir to be 102,254 acre-ft. and the surface area to be 10,264 acres at a pool elevation of 1,041 feet (KWO, 2014). The most recent survey of the lake was conducted in 2014 by the Kansas Biological Survey (figure 14). This survey revealed the storage capacity and surface area of the reservoir to be 63,235 acre-feet and 8,536 feet, respectively (KBS, 2014). This represents a total capacity loss of 38% over 51 years. 

 

 

Figure 14. Bathymetric map of John Redmond Reservoir (KBS, 2014)

Dredging

 

In 2012, the Kansas Water Office initiated a request to dredge John Redmond Reservoir in order to restore its water supply storage, and as a benefit to public recreation and the lake ecosystem (KWO). In 2013, Great Lakes Dredge and Dock Company was awarded the contract to dredge the reservoir (KWO). In order to maintain storage for current demand, the Kansas Water Office anticipates the removal of 600,000 cubic yards of sediment per year. The dredging project could take up to 25 years to complete (KWO). 

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