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Surface Water Data Portal

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

Coyote watershed

Berryessa Creek at Old Piedmont Road

Reading 9.90 ft and 0 cfs. That is 1.10 feet below the first flood threshold.

Berryessa Creek at Old Piedmont Road plotted at latitude 37.4182 and longitude -121.8551 over Valley Water's published major-watershed layer.
Berryessa Creek at Old Piedmont Road at 37.4182, -121.8551, exactly as positioned in Valley Water's sensor feed. Coyote 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

9.90 ft

Captured July 28, 2026 at 4:30 PM PT

  • Sensor ID 5136_2
  • 37.4182, -121.8551
  • Included in Valley Water's flood watch
  • Reporting

What Floods at Each Level

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

Threshold 1 · 11 ft (36 cfs)

1.10 ft above the current reading

Water near culvert soffit at Cropley Avenue if there is sedimentation.

Valley Water, threshold 1 description for Berryessa Creek at Old Piedmont Road

Threshold 2 · 12 ft (396 cfs)

2.10 ft above the current reading

Creek may overbank upstream of Cropley Avenue flowing down Cropley Avenue toward the west. Possible overbanking at and around Berryessa Creek Park near Messina Drive, Majestic Way Elementrary School, and homes on Creekside Drive.

Valley Water, threshold 2 description for Berryessa Creek at Old Piedmont Road

Threshold 3 · 13 ft (500 cfs)

3.10 ft above the current reading

Extremely high runoff from the hills suggest widespread flooding on tributaries such as Wrigley Ford Creek and Sierra Creek. Street flooding likely, with overland flow ponding towards I-680 and Cropley Avenue

Valley Water, threshold 3 description for Berryessa Creek at Old Piedmont Road

Places This Gauge Covers

Streets and landmarks named in the threshold descriptions above.

Upstream and Downstream

Where this gauge sits on Berryessa Creek.

  1. Berryessa Creek at Old Piedmont Road

    9.90 ft · 0 cfs · 1.10 ft below threshold 1

  2. Berryessa Creek above Calaveras Blvd

    3.97 ft · 102 cfs · 9.03 ft below threshold 1

Sensor Notes

Sensor is relatively new with no significant measurements. Sensor previously at Cropley Avenue, but moved due to heavy sediment deposition in that location.

Valley Water, sensor notes for Berryessa Creek at Old Piedmont Road