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City releases stream‑bank stabilization assessment; staff says repairs will take years and require new funding choices
Summary
City engineering staff presented a citywide stream‑bank stabilization assessment that identified more than 3,000 erosion locations and estimated roughly $91 million in prioritized city‑responsibility repairs; staff said completing that work would take about 20 years without additional funding.
Caleb Thornhill, director of engineering, presented the results of a citywide stream‑bank stabilization assessment conducted by staff and consultants. Thornhill said teams walked roughly 127 miles of channel (an initial 30 miles then about 97 more) and identified more than 3,000 locations with signs of erosion. He said the assessment used a 0–100 scoring system (100 = very low risk; 0–20 = critical) to rank urgency and that consultants provided cost estimates only for locations scoring 60 or below.
Thornhill reported that approximately 70 percent of erosion locations were on city‑owned or city‑responsibility land, 24 percent were on private property and 6 percent on property managed by homeowners…
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