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SACRAMENTO RIVER - HAMILTON CITY (HAMC1)
Latitude:
39.75º N
Longitude:
122.00º W
Elevation:
125 Feet
Location: Glenn County in CA
River Group: Upper Sacramento
Forecast Issued: Jan 05 2026 at 1:00 PM PST
Next Issuance: Jan 05 2026 at 9:00 PM PST

Action/
Monitor:
142.0 Ft
Minor
Flood:
147.0 Ft
Moderate
Flood:
149.2 Ft
Major
Flood:
150.2 Ft

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Graphical River Forecast - SACRAMENTO RIVER - HAMILTON CITY (HAMC1)Graphical River Forecast - SACRAMENTO RIVER - HAMILTON CITY (HAMC1)

Historical Stage/Flow Data
Note: Water Year 2025 is currently showing peak daily mean values. These will be updated to instantaneous peaks in the coming months.
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2025 109,552 147.92 Feb 06, 2025
2024 91,100 145.39 Feb 20, 2024
2023 105,300 146.79 Mar 15, 2023
2022 47,500 137.98 Oct 25, 2021
2021 13,300 130.71 Jan 29, 2021
 Historical High Stage/Flow Events (Period of Record - January 1927 to Present) - Ranked by Flow
1986 160,900 150.53 Feb 18, 1986
1970 160,700 150.80 Jan 24, 1970
1983 159,600 150.77 Mar 1, 1983
1997 155,300 150.92 Jan 2, 1997
1995 152,460** 150.65 Jan 10, 1995
1974 147,000 149.50 Jan 17, 1974
 * Datum changed from USED to NAVD88 on 10/01/2019. The difference is -0.8 ft and must be applied to all data before date to convert to NAVD88
 ** Estimated

Location Photographs

ESRI™ Locator Map

Flood Impacts
147.2 FeetFlood Stage - Overflow begins on the East bank of the river in Butte County, from near Wilson Landing Road to Highway 32.
146.8 FeetWater at top of Irvine Finch boat ramp.
145.1 FeetWater inundates Phase 2A restoration area north of Hwy 32 bridge inside of levee; touches toe of levee.
144.0 FeetCounty Road 23 in Glenn County closes east of RD 2140 levee as a result of water on roadway.
137.7 FeetWest Sacramento Avenue and River Road north of Big Chico Creek flood 1.5 hours after the Hamilton City gage reaches 137.7-138.0 feet.