gravel bed
Rocky drainage foundation
A gravel bed is a layer of gravel used as a foundation or drainage material in construction and landscaping: We laid a gravel bed before pouring the concrete.
In geology and hydrology, it refers to natural deposits of gravel along riverbeds or lake bottoms where water has sorted and deposited stones over time.
- stonesSmall hard earth fragments
- pebblesSmall water-smoothed stones
- riverbedFloor beneath flowing water
- river bottomFloor beneath flowing water
- streamSteady continuous flow
creek · sediment · aggregate · driveway · pathway · garden path · crushed · rocky · drainage · aquifer · water table · substrate · fish habitat · spawning · laying eggs · trout · salmon · current
- basement waterproofingsump pump, French drain, sump pit, waterproofing, basement drain
- geological formationsmineral deposit, ore deposit, coal deposit, oil deposit, gold deposit
- seafloor habitatssandy bottom, deep sea floor, seabed, ocean floor, ocean trench
- rain gardensrain garden, infiltration, native plants, mulch, retention
- septic systemsseptic tank, drain field, leach field, effluent, sludge
- biotreatmentaeration, biofilter, bioreactor, wastewater treatment, nitrification
surface material composition
gravel bedpoured concrete
Hardite mixed and placed
concrete slab · asphalt · tarmac · bedrock · solid rock
gravel, bed, gravels, graveled, gravelly, beds, bedded, bedding, embed