Answer: silt

AnswerCrossword Clue
SILTComposition of a river sandbar
SILTWater turbidity cause
SILTIt builds up in channels
SILTAlluvium
SILTDredger's target
SILTChannel choker
SILTDelta's buildup
SILTSedimentary stuff
SILTMississippi mud
SILTIt sinks to the bottom
SILTDredging target
SILTRiverbank deposit
SILTDam nuisance?
SILTDelta accumulation
SILTMouth build-up
SILTRiver-bottom accumulation
SILTRiver mud
SILTDelta debris
SILTEarthy matter
SILTMississippi product
siltto fill with silt
SILTBank deposit?
SILTSediment deposit
SILTTahoe deposit
SILTStream deposit
SILTDelta material
SILTRiver deposit
SILTBank deposit
SILTDelta clogger
SILTSediment
SILTDelta deposit
SILTRiver sediment
SILTDelta buildup
SILTErosion material
SILTFine deposit
SILTRiver residue
SILTLoam component
SILTChannel buildup
SILTFlooding deposit
SILTRiverbank residue