subdrain
Buried water channel
A subdrain is a drainage system installed beneath a surface—under roads, athletic fields, or building foundations—to collect and channel away groundwater or excess moisture.
Subdrains typically consist of perforated pipes surrounded by gravel, preventing water accumulation that could cause structural damage or waterlogging: The contractor installed subdrains along the basement perimeter.
Excess water drainage
- erosionGradual wearing away
- retentionContinued holding or possession
- detentionTemporary official holding
- swaleSoggy terrain depression
culvert · outfall · discharge · capacity · overflow · diversion · pavement · siltation
Hollow conveyance channel
- trenchLong narrow excavation
- gravelLoose small rock fragments
- geotextilePermeable construction fabric
- backfillReplacing excavated material
excavation · foundation · footing · aggregate · slope · outlet · cleanout · bedding
Liquid passing through pores
- seepageSlow fluid escape
- infiltrationCovert entry into organization
- waterloggingSoil oversaturated with moisture
- groundwaterWater in underground rock
soil · moisture · saturation · absorption · permeability · aquifer · runoff
Of city government
- utilitiesEssential infrastructure services
- sewerageWastewater removal infrastructure
- sanitationCleanliness for public health
- maintenancePreserving working condition
inspection · repair · network · system · wastewater · permit · easement · mapping
runoff
Excess water drainage
- erosionGradual wearing away
- retentionContinued holding or possession
- detentionTemporary official holding
swale · culvert · outfall · discharge · capacity · overflow · diversion · pavement · siltation · sediment
pipe
Hollow conveyance channel
- trenchLong narrow excavation
- gravelLoose small rock fragments
- geotextilePermeable construction fabric
backfill · excavation · foundation · footing · aggregate · slope · outlet · cleanout · bedding · installation
percolation
Liquid passing through pores
- seepageSlow fluid escape
- infiltrationCovert entry into organization
- waterloggingSoil oversaturated with moisture
groundwater · soil · moisture · saturation · absorption · permeability · aquifer · runoff
municipal
Of city government
- utilitiesEssential infrastructure services
- sewerageWastewater removal infrastructure
- sanitationCleanliness for public health
maintenance · inspection · repair · network · system · wastewater · permit · easement · mapping · assessment