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Surface Water Data Portal

Demo snapshot · July 28, 2026 at 4:53 PM PT · not current conditions

Guadalupe watershed

Ross Creek at Cherry Ave

Reading 2.53 ft and 0 cfs. That is 4.97 feet below the first flood threshold.

Ross Creek at Cherry Ave plotted at latitude 37.2631 and longitude -121.8870 over Valley Water's published major-watershed layer.
Ross Creek at Cherry Ave at 37.2631, -121.8870, exactly as positioned in Valley Water's sensor feed. Guadalupe River is the published polygon whose name matches this portal group. The eleven published polygons do not exactly match the portal's five sensor groups and do not provide a boundary for every named creek.
  • Stream gauge

2.53 ft

Captured July 28, 2026 at 4:40 PM PT

  • Sensor ID 5051
  • 37.2631, -121.8870
  • Included in Valley Water's flood watch, carries a forecast model
  • Reporting

What Floods at Each Level

These descriptions are Valley Water's own, quoted exactly as published for this gauge.

Threshold 1 · 7.5 ft (634 cfs)

4.97 ft above the current reading

Creek is extremely flashy and can rise to flood stage within an hour depending on weather conditions. Creek can be heavily influenced by Guadalupe River flow is above 4,000 cfs (9' - 9.5' Stage at Almaden Expwy), causing backwater condition.

Valley Water, threshold 1 description for Ross Creek at Cherry Ave

Threshold 2 · 10 ft (1,070 cfs)

7.47 ft above the current reading

Water begins to overtop Cherry Avenue Bridge onto Montmorency Drive, and Jarvis Avenue Bridge. Storm drains back up from the creek into neighborhoods along Ross Creek.

Valley Water, threshold 2 description for Ross Creek at Cherry Ave

Threshold 3 · 11 ft (1,450 cfs)

8.47 ft above the current reading

Water begins to overbank Ross Creek to the north between Jarvis Ave and Almaden Expwy, sheet flowing north along streets.

Valley Water, threshold 3 description for Ross Creek at Cherry Ave

Threshold 4 · 12 ft (1,700 cfs)

9.47 ft above the current reading

Neighborhoods south of Hillsdale Ave and East of Jarvis Ave experience significant inundation. Waters may move past Hillsdale Ave, continuing northwards to the CA-87 and I-280 interchange. Floodwaters stay east of Cherry Avenue up to Curtner Avenue, and east of Lincoln Avenue north of Pine Street. Waters flow just east of Willow Glen Middle and High Schools, but do not inundate the schools.

Valley Water, threshold 4 description for Ross Creek at Cherry Ave

Places This Gauge Covers

Streets and landmarks named in the threshold descriptions above.

Upstream and Downstream

Where this gauge sits on Ross Creek.

  1. Ross Creek at Blossom Hill Rd

    1.08 ft · 0.04 cfs · no published threshold

  2. Ross Creek at Cherry Ave

    2.53 ft · 0 cfs · 4.97 ft below threshold 1

Sensor Notes

Creek is very flashy and can reach top of bank in under an hour.

Valley Water, sensor notes for Ross Creek at Cherry Ave