Answer: logjams

AnswerCrossword Clue
LOGJAMSBottlenecks
LOGJAMSFixes
LOGJAMSBlockages
LOGJAMSRiver pileups
LOGJAMSLumberman's problems.
LOGJAMSImpasses
LOGJAMSStoppages at the lumber mill?
LOGJAMSTie-ups
logjamspileup of logs, as in a river
logjamsblockage