Answer: logjam

AnswerCrossword Clue
LOGJAM

River blockage

LOGJAM

Massive pileup

LOGJAM

Mill problem

LOGJAM
Obstructive pileup
LOGJAM
Backup at the lumber mill
LOGJAMMessy pileup
LOGJAMBig backup
LOGJAMBottleneck
LOGJAMImmovable pileup
LOGJAMImmovable blockage
LOGJAMDeadlock
LOGJAMPileup at a lumber mill
LOGJAMBlockage
LOGJAMSevere backup
LOGJAMBackup
LOGJAMLumberjack's problem
LOGJAMLumber mill blockage
LOGJAMObstacle to progress
LOGJAMTie-up
LOGJAMBig blockage
LOGJAMObstruction
LOGJAMProblem on a channel
LOGJAMImpasse.
LOGJAMDeadlock.
LOGJAMCongestion
LOGJAMLumbering problem
LOGJAMLegislative holdup
LOGJAMImpasse
LOGJAMNegotiator's challenge
LOGJAMTimber torpor?
LOGJAMPileup