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Top Terms > Facilities > Transportation, hydraulic and utility facilities > Hydraulic structures > Irrigation and drainage structures > Drainage structures

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Drainage structures (Pmhpd)

Systems designed to limit water damage to the roadway by controlling or directing the free flow of water over, under, or adjacent to the highway and to control the movement of water through the pavement's structural support where necessary. (Source: AASHTO Glossary)
Broader Term
Irrigation and drainage structures (Pmhp)
Narrower Terms
Catch basins (Pmhpdb)
Detention basins (Pmhpdc)
Ditches (Pmhpdd)
Drainage canals (Pmhpde)
Drains (Pmhpdf)
Drainage basins (Pmhpdh)
Drainage blankets (Pmhpdj)
Grates (Pmhpdm)
Gutters (Pmhpdp)
Manholes (Pmhpdq)
Sewers (Pmhpds)
Sumps (Pmhpdu)
Swales (Pmhpdv)
Related Terms (Hierarchical)
Irrigation structures (Pmhpj)