Truman Reservoir Information (Geography)

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Harry S. Truman Reservoir
Truman Lake
USACE Harry S Truman Dam Missouri.jpg
Harry S. Truman Dam
Location Benton / Henry / Hickory / St. Clair counties, Missouri, US
Coordinates 38°15′47″N 93°24′17″W / 38.26306°N 93.40472°W / 38.26306; -93.40472
TRUMAN RESERVOIR Latitude and Longitude:

38°15′47″N 93°24′17″W / 38.26306°N 93.40472°W / 38.26306; -93.40472
Type reservoir
Primary inflows Osage River
Primary outflows Osage River
Basin countriesUnited States
Surface area55,600 acres (225 km2), [1] or 200,000 acres (810 km2) at flood stage [2]
Water volume5,000,000 acre⋅ft (6.2 km3) [2]
Surface elevation706 feet (215 m) above sea level. [2]
Two of the four large tainter gates at Harry S. Truman Dam
A map and brochure showing the shape and location of the lake

The Harry S. Truman Reservoir (also known as Truman Lake) is located in the state of Missouri, United States. It is located between Clinton and Warsaw, on the Osage River and extends south to Osceola. The dam is located in Benton County, but the reservoir also extends into parts of Henry, St. Clair, and Hickory counties.


The U.S. Army Corps of Engineers built and manages the lake and dam. It is used primarily for flood control. It is also used for power generation, recreation, and wildlife management.

Originally named Kaysinger Bluff Dam and Reservoir in 1954, when construction was authorized, construction began in August 1964. It was renamed the Harry S. Truman Dam and Reservoir, in honor of the former president from Missouri, by Congress in 1970. Construction was completed in 1979. The Kaysinger name refers to the bluff immediately north next to where the dam was eventually constructed. The bluff or cliff, a popular landmark even before the dam, overlooked the confluence of the South Grand River, Tebo Creek and the Osage River. The visitor center now sits on the bluff.

Completing the Truman Project took many years of planning, land acquisition, constructing new bridges and demolishing old ones. Several roads, towns, and cemeteries had to be relocated. The first construction project completed on the project was relocating Route 13 so it would be above maximum pool level.

The creation of the lake forced the closure of the Frisco Railroad's "Highline". Rising water levels severed the railroad tracks near Osceola and Deepwater and railroad officials declined to spend millions of dollars to reroute the lightly used tracks. The Missouri-Kansas-Texas Railroad, however, did relocate its main line between La Due and Clinton; the project included five miles of new track and a causeway/bridge combination over the lake.

Harry S. Truman Regional Visitor Center

The Harry S. Truman Regional Visitor Center contains exhibits about the cultural and natural history of Truman Lake, environmental activities, the construction of the dam, the operation of the powerhouse, and the US Army Corps of Engineers. A 67-seat theater shows wildlife, history and water safety videos by request. The observation deck offers views of Truman Lake and part of the Lake of the Ozarks, as well as the dam.

Harry S. Truman State Park

Harry S. Truman State Park is located in Benton County, Missouri on a peninsula that juts out into the reservoir.

Weaubleau-Osceola structure

The south-west portion of the lake makes up part of the circumference of the Weaubleau-Osceola structure, a 330-335 million year old impact crater. [3]

Harry S. Truman Dam

Dam type: Concrete gravity and earth embankment in two sections
Length (total): 5,964 feet (1,817.8 m)
Length (concrete section): 964 feet (293.8 m)
Length (earth section): 5,000 feet (1,524.0 m)
Height above river bed: 126 feet (38.4 m)
Concrete volume: 327,000 yards³ (250,011 m³)
Earth volume: 8,500,000 yards³ (6,498,755 m³)
Spillway length: 190 feet (57.9 m) in four sections
Tainter gates: 4
Six turbines Rated at 160 megawatts [2]


  1. ^ Corps of Engineers "what we do" page Archived 2010-04-01 at the Wayback Machine
  2. ^ a b c d "Learn About the Lake". Army Corps of Engineers, Kansas City District. Retrieved 9 February 2016.
  3. ^ Miller, J.F., Evans, K.R., Rovey, C.W., II, Ausich, W.L., Bolyard, S.E., Davis, G.H., Ethington, R.L., Sandberg, C.A., Thompson, T.L., and Waters, J.A., "Mixed-age echinoderms, conodonts, and other fossils used to date a meteorite impact, and implications for missing strata in the type Osagean (Mississippian) in Missouri, USA". Echinoderm Paleobiology, 2008, 53p.

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