Watershed Protection and Flood Prevention Program | NRCS Arkansas
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Watershed Protection and Flood Prevention Program

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PL-566 Watershed Program

PL-566 Watershed Program

Arkansas has historically had flooding problems. In 1927, a third of the state was covered in water.

While flooding the last several years has caused millions of dollars of damage to homes, businesses and crops, it could have been worse in some areas.

Thanks to the 207 small and medium sized dams built by NRCS, some flooding was reduced. Built by NRCS in partnership with local watershed districts, these earthen dams provide an average annual benefit of $51 million from the reduction in flooding. In recent years, no doubt, their benefit is much higher.

The first of these watershed protection dams was built in 1954 on Six Mile Creek in western Arkansas. Twenty-four dams protect the Six Mile Creek flood plain. Most were built between 1954 and 1956. Prior to the construction of the dams, flooding in the Six Mile Creek watershed was much worse and more frequent.

In 1961, the NRCS (then the Soil Conservation Service) along with the Central Crowley’s Ridge Soil Conservation District and the Green County – Crowley’s Ridge Soil Conservation District developed a watershed protection and flood prevention work plan for the Big Creek Watershed near Jonesboro. The work plan covered 72,966 acres, including more than 1,300 farms and two-thirds of the city of Jonesboro. The plan called for 22 earthen dams, along with other watershed improvements. Twenty-one of the 22 dams were built.

The series of dams were constructed to temporarily store floodwater and then slowly release it over a period of several days through spillway pipes in the dams. In 1961, the expected average benefits from flood reduction were estimated to be more than $200,000 annually. In today’s figures, that is $2.4 million per year.

The dams in the Big Creek Watershed were built in response to the floods of the 1900s, when an average of five floods per year ripped through the then sparsely populated countryside. Crops had to be replanted, fences were washed away, farm animals were lost or destroyed and bridges were damaged. People could not travel to Jonesboro for needed supplies at the time until the flood waters receded. The storm in November 1957 inundated about 75 percent of the flood plain in the watershed comprised of Jonesboro and lands just north of Jonesboro and caused floodwater damage estimated at more than 2 million dollars (2006 value). Now the dams protect the area.

These watershed projects are planned and implemented by local people who serve as project sponsors, with assistance from the NRCS. The projects are authorized and funded through the Watershed Protection and Flood Prevention Act of 1954 (Public Law 83-566) and the Flood Control Act of 1944 (Public Law 78-534). The program is a partnership between local units of government, state government, the federal government, and landowners.

NRCS provides technical and financial assistance to states, local governments and tribes to implement authorized watershed project plans for the purpose of watershed flood reduction protection; flood mitigation; water quality improvements; soil erosion reduction; rural, municipal and industrial water supply; irrigation water management; sediment control; fish and wildlife enhancement; and wetland creation and restoration.

Benefits from Watershed Dams

  • Flood damage reduction benefits to agriculture: $13,418,034
  • Flood damage reduction benefits to non-agriculture: $3,547,742
  • Non Flood damage reduction benefits to agriculture: $14,076,407
  • Non-flood damage reduction benefits to non-agriculture: $20,343,213
  • Total Benefits: $51,385,396

Other Benefits

  • Number of people: 38,249
  • Farms and ranches: 4,723
  • Bridges: 70
  • Public facilities: 6
  • Businesses: 30
  • Homes: 188
  • Domestic Water Supplies: 9
  • Acres of nutrient management per year: 16,189
  • Tons of soil saved from erosion per year: 2,024,110
  • Tons of reduction of annual sedimentation: 506,688
  • Miles of stream and corridors enhanced or protected: 335
  • Lakes and reservoirs enhanced or protected: 5,709
  • Water bodies or stream segments improved that also provide recreational opportunities: 327
  • Acre feet of water conserved per year: 1,738
  • Wetland acres created, enhanced or restored: 3,595
  • Acres of upland or riparian wildlife habitat created, enhanced or restored: 31,719

Watershed with Active Projects

  • Ozan Creeks
  • Poinsett
  • Big Slough
  • Departee Creek

Additional Information

The documents below require Adobe Acrobat Reader
  • National Watershed Program Manual (PDF, 80KB)
  • National Watershed Program Handbook (PDF, 2.81MB)

Program Contact

Jena Moore
ASTC Programs
(501) 301-3165

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