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Staff outlines Snoqualmie flood response and town‑hall feedback after Dec. 10 deluge
Summary
City staff told the Public Safety Committee that the Dec. 10, 2025 flood peaked at about 70,000 cubic feet per second, prompted a March 4 town hall at the high school, and produced community feedback focused on communication, traffic coordination and infrastructure resilience. Staff will deliver a report and recommended actions to council.
City staff told the Snoqualmie Public Safety Committee that the Dec. 10, 2025 flood produced peak flows of about 70,000 cubic feet per second through the city and prompted a town hall to capture resident observations and improvement ideas.
At a committee meeting, a staff member summarized the emergency response and public engagement work that followed the event. "At one point, we had 70,000 CFS going through the city," the staff member said, and described how most of the water channeled between State Route 202 and the river, with some localized backing up on Kimell Creek. The presentation noted a multi‑agency response that included East Side Fire & Rescue, Fall City Fire, the Washington State Patrol and the Department of Transportation.
The town hall held March 4 at the high school opened with prepared presentations from public works, police and fire and then broke attendees into small groups to record what went well and what could be improved. Staff collected the group notes on easels for internal review. "We asked them two discussion points: what did you see during the flood that went correctly, and where we could consider some improvements," the staff member said.
Why it matters: Committee members said the town‑hall feedback highlighted several areas that affect public safety and city operations. The themes staff identified included clarity of public communication during emergencies, coordination of regional highway traffic when I‑90 was closed, on‑the‑ground flood‑response logistics, traffic management through the city, infrastructure resilience, and community preparedness.
Council Cotton pressed staff about how decisions to reroute traffic into the city were made, asking why traffic was not stopped at I‑90 when possible. The staff response said many routing decisions were made by external agencies (State Patrol, DOT) and that coordination improved once partners were operating from the city’s Emergency Operations Center. Staff also pointed to navigation apps routing trucks into the city as a complicating factor.
What’s next: Staff said it will continue an internal operational review that incorporates the citizen input from the town hall and will return to council with a written report summarizing findings, proposed improvement actions and timelines. The mayor thanked the directors and chiefs who presented at the town hall and said the event was well received by the community.
