Flood — Weber, Utah

2023-05-11 · near Hermitage, Weber, Utah

Event narrative

At approximately 0830 MST on Thursday, May 11, 2023, high flows on the Lower Ogden River eroded the embankment supporting state Route 39 through Ogden Canyon which caused one lane of the two lane road to collapse. An upstream river gauge reported flows above action stage (greater than 1264 cfs) from April 14 through May 2, and again from May 4 through the time of the incident. Flows approached minor flood stage (1610 cfs) within 100 cfs throughout this time, but exceeded minor flood stage by 5 cfs at one observation time on May 9, 2023. The road was closed for approximately 11 hours, with the one stable lane allowed to reopen thereafter.

Wider weather episode

High flows on the Ogden River associated with snowmelt from the record winter resulted in a portion of state Route 39 in Ogden Canyon being washed out.

View location on OpenStreetMap → (41.2367, -111.9230)

Source: NOAA Storm Events Database, event_id 1097927. Narrative written by the NWS forecast office that issued the report.