Hydrohistorian
Dille Tunnel near Drake
Tunnel / pipeline gage · DILTUNCO · Division 1 · Water District 4 · Larimer County
The record
Period of record
1950-09-30 → 2026-08-15
Daily values
31,165
Latest cached reading
0.0 cfs (2026-08-15)
Trend
increasing, 2.9 cfs/decade (11.7% of median)
Pettitt changepoint
~1982
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 (5.0).
Provenance
DWR station abbreviation DILTUNCO; recorded station name “DILLE TUNNEL NEAR DRAKE”; operated by NWBOR. 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.