Hydrohistorian

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Boulder-Larimer Bypass near Berthoud

River gage · BOUBYPCO · Division 1 · Water District 4 · Larimer County

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

The record

Period of record
1998-04-07 → 2026-08-15
Daily values
8,687
Latest cached reading
2.8 cfs (2026-08-15)
Trend
no trend, 0.26 cfs/decade (9.6% 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 BOUBYPCO; recorded station name “BOULDER-LARIMER BYPASS NEAR BERTHOUD”; 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.