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Olympus Tunnel (Estes Foothills Canal)

Tunnel / pipeline gage · OLYTUNCO · USGS 06734900 · Division 1 · Water District 4 · Larimer County

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

The record

Period of record
1953-04-01 → 2026-08-15
Daily values
25,830
Latest cached reading
432.0 cfs (2026-08-15)
Trend
no trend, -1.93 cfs/decade (-0.5% of median)

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 OLYTUNCO; recorded station name “OLYMPUS TUNNEL (ESTES FOOTHILLS CANAL)”; 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.