Blue River Below Green Mountain Reservoir, CO
USGS Site No: 09057500 • Blue River • Summit County, CO
Blue River Below Green Mountain Reservoir, CO on the Blue River is currently at 62 cfs (Low — 13th percentile for this date) . Gage height: 2.48 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 58 | |
| 25th | Low threshold | 75 | Today: 62 cfs |
| 50th (Median) | Normal (median) | 487 | |
| 75th | High threshold | 1,080 | |
| 95th | Very High threshold | 1,750 |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 62 | — |
| May 27, 2026 | 190 | — |
| May 26, 2026 | 301 | — |
| May 25, 2026 | 337 | — |
| May 24, 2026 | 384 | — |
| May 23, 2026 | 393 | — |
| May 22, 2026 | 296 | — |
| May 21, 2026 | 147 | — |
| May 20, 2026 | 63 | — |
| May 19, 2026 | 63 | — |
| May 18, 2026 | 63 | — |
| May 17, 2026 | 64 | — |
| May 16, 2026 | 63 | — |
| May 15, 2026 | 63 | — |
| Apr 20, 2026 | 147 | — |
| Apr 19, 2026 | 127 | — |
| Apr 18, 2026 | 99 | — |
| Apr 17, 2026 | 371 | — |
| Apr 16, 2026 | 497 | — |
| Apr 15, 2026 | 495 | — |
| Apr 14, 2026 | 471 | — |
| Apr 13, 2026 | 396 | — |
| Apr 12, 2026 | 375 | — |
| Apr 11, 2026 | 371 | — |
| Apr 10, 2026 | 336 | — |
| Apr 9, 2026 | 222 | — |
| Apr 8, 2026 | 115 | — |
| Apr 7, 2026 | 74 | — |
| Apr 6, 2026 | 62 | — |
| Apr 5, 2026 | 62 | — |
Station Information
- USGS Site No
- 09057500
- State
- CO
- County
- Summit County
- Coordinates
- 39.8803, -106.3339
- Drainage Area
- 597 mi²
- Datum (ft)
- 7,682.7
- HUC Code
- 14010002
Flood Stage Thresholds
- Action Stage
- 10.0 ft
- Flood Stage
- 10.5 ft
- Moderate Flood
- 11.0 ft
- Major Flood
- 12.0 ft
Currently 8.02 ft below flood stage.
Recent Extremes
- Max discharge
-
863 cfsAug 13, 2025
- Min discharge
-
61 cfsMar 24, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Blue River Above Green Mountain Reservoir, Co.Very Low6.8 mi · 217 cfs
-
Colorado River Near Kremmling, COVery Low12.2 mi · 365 cfs
-
Colorado River at Windy Gap, Near Granby, Co.Low23.5 mi · 170 cfs
-
Eagle River Below Milk Creek Near Wolcott, COVery Low24.1 mi · 617 cfs
-
St. Louis Creek Near Fraser, Co.Very Low24.3 mi · 9 cfs