navigation dam

navigation dam

[‚nav·ə′gā·shən ‚dam]
(civil engineering)
A structure designed to raise the level of a stream to increase the depth for navigation purposes.
References in periodicals archive ?
The warmest reading for the month was 75 degrees at Kaskaskia River Navigation Dam on March 16.
Contract notice: 19 Acquisition Of Security Little Boats Including 2 Motorized, For Use Downstream Of Navigation Dams
Economic and political considerations make this impossible; therefore, complete restoration of the decurrent false aster to its former status is unlikely, and conservation efforts must necessarily focus on mitigating the effects of levees and navigation dams. Although the combination of advances in managing navigation pools and a rising concern about the effects of navigation structures on floodplain species has resulted in experimentation with a pool drawdown strategy that would provide a 30-day summer growing season for floodplain plants, this is inadequate for the decurrent false aster, since it requires approximately 120 days to complete its life cycle, from seedling to production of seeds.
We regulate irrigation dams differently from navigation dams and assign water rights to dams in western states but apply common law in eastern states, even when dams share the same river.
After the Corps of Engineers bought thousands of acres of land in the 1930s to construct navigation dams, farms were abandoned.

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