← Basin trends

Homestake Tunnel

Transbasin diversion gage · HOMTUNCO · USGS 09063700 · Division 2 · Water District 11 · Lake County

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

What this gage meters

This is not a natural stream record. The Homestake Tunnel moves water from Homestake Creek, Eagle River basin (Div 5) into Turquoise Lake, Arkansas River basin (Div 2), operated by Colorado Springs Utilities / Aurora Water — so this record is a ledger of those deliveries. Trends here reflect operational and demand decisions, not the basin's hydrology, and the basin trends page marks it accordingly (⇆). All of Colorado's curated transbasin diversions are collected at /transbasin.

The record

Period of record
1966-10-01 → 2026-07-06
Daily values
21,798
Latest cached reading
0.0 cfs (2026-07-06)
Trend
no trend, -1.99 cfs/decade (-6.1% 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

Loading chart…

Where it sits

Location as DWR records it (5.0).

Provenance

DWR station abbreviation HOMTUNCO; recorded station name “HOMESTAKE TUNNEL”; 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.