Hydrohistorian
Pioneer Ditch at the Colorado-Nebraska Stateline
Ditch / canal gage · PIOSTLCO · Division 1 · Water District 65 · Yuma County
The record
Period of record
1965-10-01 → 2026-08-16
Daily values
22,441
Latest cached reading
12.6 cfs (2026-08-16)
Trend
decreasing, -0.6 cfs/decade (-8.6% 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
Loading chart…
Where it sits
Location as DWR records it (4.0).
Provenance
DWR station abbreviation PIOSTLCO; recorded station name “PIONEER DITCH AT THE COLORADO-NEBRASKA STATELINE”; 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.