Portneuf River at Topaz ID
Is Portneuf River at Topaz ID flooding right now?
Portneuf River at Topaz ID measured 2.45 ft on 2026-09-11 01:15:00 UTC. That observation was 1.6 ft below its 4.02 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
2.45 ft
Streamflow
70 cfs
Minor flooding here begins at 4.02 ft. The highest crest on record was 6 ft on Wed, Dec 23, 1964.
Flood forecast
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 3.5 ft | 1.0 ft below |
| Minor flood | 4.02 ft | 1.6 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 6 ft | 1964-12-23 |
| 5.71 ft | 1957-02-25 |
| 5.59 ft | 1980-02-20 |
| 5.56 ft | 1969-01-22 |
| 5.42 ft | 1984-05-21 |
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Marsh Creek near Mccammon ID | 7.0 mi | Bannock County |
| Portneuf River at Pebble ID | 9.3 mi | Caribou County |
| Marsh Creek above Hawkins Creek near Virginia ID | 9.8 mi | Bannock County |
| Marsh Creek at E Richards Rd near Virginia, ID | 11.3 mi | Bannock County |
| Portneuf River. at Inkom, ID | 14.2 mi | Bannock County |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.