Billings canal repaired and flowing Wednesday after weekend overflow MTN News / Mitch Lagge The Billings Bench Water Association canal that runs parallel to the Rimrocks near the North Side of town. and last updated 2021-06-09 12:19:36-04 BILLINGS â Water flow to the Billings Bench Water Association canal was turned back on Wednesday morning after it had been dry since Sunday when it was shut off for an overflow emergency, said Jim Stott, president of the Billings Bench Water Association. Water had been diverted at Canyon Creek since Sunday, when a tunnel blockage caused the canal to overflow into a North Side neighborhood and forced the evacuation of about 96 residences.