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Local engineers recommend upstream catch basins, tree removal and boulder check dams to slow debris flow
Summary
Hayden George told the council the priority is clearing burned trees and installing small debris‑catch basins and riprap above the dam to reduce the volume and momentum of material that could otherwise overwhelm culverts and the spillway. He emphasized prioritizing work above the town springs.
Hayden George, who led the technical briefing, said the greatest risk is debris already in the stream bottoms above the dam and urged removing large dead trees and placing stacked boulders to form catch basins approximately every quarter mile. "My my biggest concern probably is our town springs," he said, arguing that slowing and trapping debris upstream can reduce the risk to the springs and downstream infrastructure.
George recommended focusing efforts from Adelaide down toward Levitts and the springs, using existing rock outcroppings where possible and placing smaller basins in tributaries where equipment can access them. He cautioned that while the debris basin will collect much material, Corn Creek is a large drainage and the more upstream removal and localized check dams the town can implement quickly, the better the chance of preventing choke points at culverts and bridges.
