Erosion causes landslide at Public Works in Petersburg
December 24, 2020
PETERSBURG - Water from this month's heavy rainfall ripped at deformities in a culvert that runs underneath the Public Works yard, opening up a portion of the pipe and causing a landslide near Hammer Slough.
The culvert diverts water from a creek that runs parallel to Kiseno St. to Hammer Slough. When 6.63 inches of rain fell over the town on Nov. 30 and Dec. 1, water in the creek became backed up as the culvert struggled under the volume of water, said Public Works Director Chris Cotta. The gushing water grabbed at defects in the culvert. One of those defects opened up and water started gu...