Hydrohistorian

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South Saint Vrain near Ward

River gage · SSVWARCO · USGS 06722500 · Division 1 · Water District 5 · Boulder County

Live gage at DWR ↗ · USGS monitoring location ↗ · Download daily record (CSV)

The record

Period of record
1925-09-30 → 2026-08-15
Daily values
19,071
Latest cached reading
9.4 cfs (2026-08-15)
Trend
decreasing, -3.31 cfs/decade (-10.7% of median)
Pettitt changepoint
~1965

Readings come from the weekly-refreshed cache, never fetched live — the date beside the value says exactly how fresh it is. The live gage is one click up.

Annual flow & trend

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Where it sits

Location as DWR records it (5.0).

Provenance

DWR station abbreviation SSVWARCO; recorded station name “SOUTH SAINT VRAIN NEAR WARD”; operated by DWR. Daily flows from the DWR HydroBase snapshot plus CDSS REST updates, refreshed on the weekly cycle. Trend statistics are Mann-Kendall (Hamed-Rao corrected) with Sen's slope in native cfs, the same numbers as the basin Trends tab.