Glacier C at Alyeska Highway at Girdwood, AK
USGS Site No: 15272502 • Anchorage Municipality, AK
Glacier C at Alyeska Highway at Girdwood, AK is currently at 92 cfs (Low — 13th percentile for this date) . Gage height: 26.46 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 | 0 | |
| 25th | Low threshold | 404 | Today: 92 cfs |
| 50th (Median) | Normal (median) | 578 | |
| 75th | High threshold | 644 | |
| 95th | Very High threshold | 0 |
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 | 94 | — |
| May 27, 2026 | 96 | — |
| May 26, 2026 | 97 | — |
| May 25, 2026 | 93 | — |
| May 24, 2026 | 91 | — |
| May 23, 2026 | 95 | — |
| May 22, 2026 | 99 | — |
| May 21, 2026 | 108 | — |
| May 20, 2026 | 114 | — |
| May 19, 2026 | 112 | — |
| May 18, 2026 | 122 | — |
| May 17, 2026 | 156 | — |
| May 16, 2026 | 120 | — |
| May 15, 2026 | 135 | — |
| Apr 20, 2026 | 38 | — |
| Apr 19, 2026 | 39 | — |
| Apr 18, 2026 | 36 | — |
| Apr 17, 2026 | 34 | — |
| Apr 16, 2026 | 31 | — |
| Apr 15, 2026 | 32 | — |
| Apr 14, 2026 | 32 | — |
| Apr 13, 2026 | 30 | — |
| Apr 12, 2026 | 32 | — |
| Apr 11, 2026 | 32 | — |
| Apr 10, 2026 | 31 | — |
| Apr 9, 2026 | 31 | — |
| Apr 8, 2026 | 31 | — |
| Apr 7, 2026 | 31 | — |
| Apr 6, 2026 | 32 | — |
| Apr 5, 2026 | 32 | — |
Station Information
- USGS Site No
- 15272502
- State
- AK
- County
- Anchorage Municipality
- Coordinates
- 60.9616, -149.1319
- Drainage Area
- 44 mi²
- Datum (ft)
- 80.5
- HUC Code
- 190203020702
Flood Stage Thresholds
- Action Stage
- 27.5 ft
- Flood Stage
- 29.5 ft
- Moderate Flood
- 31.0 ft
- Major Flood
- 32.0 ft
Currently 3.04 ft below flood stage.
Recent Extremes
- Max discharge
-
690 cfsJun 21, 2025
- Min discharge
-
30 cfsApr 13, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Sixmile C near Hope AKVery Low13.9 mi · 898 cfs
-
Ship C near Anchorage AKVery Low24.8 mi · 130 cfs
-
Campbell C near Spenard AKVery Low29.2 mi · 64 cfs
-
Chester C at Arctic Boulevard at Anchorage AKHigh30.6 mi · 40 cfs
-
Knik River near Palmer AKVery Low37.7 mi · 4,500 cfs