| GUADALUPE RIVER - SAN JOSE AT ALMADEN EXPRESSWAY (GUDC1) | ||
| Latitude: 37.28º N | Longitude: 121.88º W | Elevation: 150 Feet |
| Location: Santa Clara County in CA | ||
| River Group: Central Coast | ||
| Forecast Issued: | Jan 08 2026 at 7:35 AM PST | Next Issuance: | Jan 08 2026 at 3:00 PM PST |
| Action/ Monitor: 9.0 Ft | Minor Flood: 10.5 Ft | Moderate Flood: 11.5 Ft | Major Flood: 15.0 Ft |
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Historical Stage/Flow Data |
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Note: Water Year 2025 is currently showing peak daily mean values. These will be updated to instantaneous peaks in the coming months. |
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Water Year
|
Peak Discharge (cfs)
|
Stage (feet)
|
Date
|
| Most Recent 5 Years | |||
2025* |
1,017 |
5.56 |
Feb 14, 2025 |
2024* |
1,611 |
7.39 |
Feb 4, 2024 |
2023* |
3,120 |
9.04 |
Jan 9, 2023 |
2022* |
1,510 |
6.14 |
Dec 24, 2022 |
2021* |
1,480 |
6.09 |
Jan 27, 2021 |
| Historical High Stage/Flow Events (Period of Record - Jan 1975 to Present) - Ranked by Flow | |||
1995* |
8,470 |
11.73 |
Jan 09, 1995 |
1999* |
6,780 |
10.50 |
Dec 3, 1998 |
| * Discharge affected by regulation or diversion | |||
| Location Photographs | ||
| ESRI™ Locator Map |
| Flood Impacts | |
| 12.0 Feet | Major Flood Stage. Flooding continues to spill near Alam Avenue, flowing northward and crossing east under Willow Street and Alma Avenue viaducts, continuing to flow north. Overbanking occurs at Atlanta Avenue just upstream of CA87. The Willow Glen Neighborhood bounded by Willow Street and Minnesota Avenue see overland flooding. Overbanking occurs in various locations between Alma Avenue and Willow Glen Way. Potential flooding on Ross and Canoas Creeks due to high backwater caused by Guadalupe River. |
| 11.73 Feet | Historical High Water - January 1995 |
| 11.0 Feet | Moderate Flood Stage. River continues to overtop upstream of Alma Avenue Bridge into the Elks Lodge, spilling north along Lelong Street. Alma Avenue/CA87 viaduct is flooded. Creek overbanks west near Minnesota Avenue downstream of Alma Avenue. Properties south of the old UPRR alignment in the Northern Cross Neighborhood also at risk. |
| 10.5 Feet | Minor Flood Stage. River begins to overtop upstream of Alma Avenue Bridge into the Elks Lodge, spilling north , as well as near the RxR on the east bank. |
| 9.0 Feet | Action Stage: Additional flow from Canoas Creek watershed or increased reservoir spills may bring river to flood stage. |