Hydrohistorian

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South Platte River below Cheesman Reservoir

Reservoir gage · PLACHECO · USGS 06701500 · Division 1 · Water District 80 · Jefferson County

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

The record

Period of record
1924-09-30 → 2026-05-19
Daily values
37,121
Latest cached reading
140.0 cfs (2026-05-19)
Trend
increasing, 6.31 cfs/decade (3.8% of median)
Pettitt changepoint
~1981

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 (user supplied).

Provenance

DWR station abbreviation PLACHECO; recorded station name “SOUTH PLATTE RIVER BELOW CHEESMAN RESERVOIR”; 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.