floodway
Diversion for overflow
A floodway is a channel designed to divert excess water during floods, protecting populated areas by directing overflow away from them.
It may be a natural low-lying area designated for this purpose or an engineered structure: The floodway saved the city during the spring melt.
In regulatory contexts, floodway refers to the portion of a floodplain that must remain unobstructed to carry floodwaters.
Passage for transmission
- spillwayDam's water release structure
- leveeRiver flood barrier
- culvertTunnel for water passage
- embankmentRaised earth structure
retention · drainage · weir · reservoir · riprap · hydrology · hydraulics · stormwater
Large flowing watercourse
- streamSteady continuous flow
- creekNarrow natural watercourse
- tributaryStream entering larger river
- channelPassage for transmission
confluence · delta · meander · oxbow · braided · riparian · billabong · gully
Overwhelming surge of water
- overflowExceed capacity and spill
- delugeSevere overflow of water
- surgeSudden powerful increase
- runoffExcess water drainage
flashflood · highwater · overbank · fluvial · pluvial · discharge · crest · peak
Dug water passage
- ditchShallow excavated channel
- diversionRedirection of attention
- agricultureCultivation of land, livestock
- farmlandAgricultural terrain
paddy · levee · field · drainage · aqueduct · cultivation · rice · delta
Control by rules
- restrictTo impose limits upon
- zoningSectioning areas by use
- easementLimited land-use privilege
- ordinanceOfficial government regulation
setback · permit · compliance · mitigation · insurance · mapping · designation · encroachment
channel
Passage for transmission
embankment · retention · drainage · weir · reservoir · riprap · hydrology · hydraulics · stormwater · infrastructure
river
Large flowing watercourse
channel · confluence · delta · meander · oxbow · braided · riparian · billabong · gully · ravine
inundation
Overwhelming surge of water
runoff · flashflood · highwater · overbank · fluvial · pluvial · discharge · crest · peak · recurrence
canal
Dug water passage
- ditchShallow excavated channel
- diversionRedirection of attention
- agricultureCultivation of land, livestock
farmland · paddy · levee · field · drainage · aqueduct · cultivation · rice · delta
regulate
Control by rules
ordinance · setback · permit · compliance · mitigation · insurance · mapping · designation · encroachment · maintenance
- floodplainsalluvium, backswamp, bottomland, oxbow, oxbow lake
- Louisiana wetlandsbayou, marshes, marshlands, marshland, bayous
- riversMississippi, Amazon, river, rivers, Nile
- waterwaysriver, rivers, canal, canals, stream
- wetlandsswamp, swamps, marsh, marshes, marshland
- outback roadsdirt road, dirt track, gravel road, desert road
floodwaydam
Water-holding barrier
levee · dike · flood barrier · seawall · embankment
floodwayreservoir
Large water storage basin
impoundment · retention pond · holding tank · cistern · catchment