How high is the Glacier C at Alyeska Highway at Girdwood, AK right now?

The Glacier C at Alyeska Highway at Girdwood, AK is currently flowing at 92 cubic feet per second with a gage height of 26.46 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Glacier C at Alyeska Highway at Girdwood, AK normal for this time of year?

Current flow is classified as very low for October 28. Today's discharge is at the 9th percentile compared to the long-term historical record at this gauge.

Is the Glacier C at Alyeska Highway at Girdwood, AK at flood stage?

No — the gage height is 3.04 feet below the NWS flood-stage threshold of 29.5 feet.

What is the historical median flow for the Glacier C at Alyeska Highway at Girdwood, AK on October 28?

The long-term median discharge for this date is 118 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 105 to unavailable cfs.

Where is the Glacier C at Alyeska Highway at Girdwood, AK stream gauge located?

The Glacier C at Alyeska Highway at Girdwood, AK stream gauge is operated by the USGS in Anchorage Municipality, AK. USGS site number 15272502 (coordinates 60.9616, -149.1319).

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 (Very Low — 9th percentile for this date) . Gage height: 26.46 ft.

Reading from 4 months ago

CFS Discharge

26.46

Gage Height (ft)

Very Low

Flow Condition

Normal

Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for October 28 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	105	Today: 92 cfs
25th	Low threshold	111
50th (Median)	Normal (median)	118
75th	High threshold	228
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.

10th–95th historical Day-of-year median Recent discharge

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

View on USGS NWIS →

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 cfs

Jun 21, 2025
Min discharge: 30 cfs

Apr 13, 2026
Days at flood stage: 0

Computed from the local daily-values archive.

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