How high is the Big Creek Near Alpharetta, GA right now?

The Big Creek Near Alpharetta, GA is currently flowing at 81 cubic feet per second with a gage height of 2.53 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Big Creek Near Alpharetta, GA normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 66th percentile compared to the long-term historical record at this gauge.

Is the Big Creek Near Alpharetta, GA at flood stage?

No — the gage height is 4.47 feet below the NWS flood-stage threshold of 7.0 feet.

What is the historical median flow for the Big Creek Near Alpharetta, GA on June 11?

The long-term median discharge for this date is 63 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 24 to 205 cfs.

Where is the Big Creek Near Alpharetta, GA stream gauge located?

The Big Creek Near Alpharetta, GA stream gauge is operated by the USGS in Fulton County, GA on the Big Creek. USGS site number 02335700 (coordinates 34.0506, -84.2694).

Big Creek Near Alpharetta, GA

USGS Site No: 02335700 • Big Creek • Fulton County, GA

Big Creek Near Alpharetta, GA on the Big Creek is currently at 81 cfs (Normal — 66th percentile for this date) . Gage height: 2.53 ft.

Reading from 1 week ago

↑ Upstream on Big Creek

Big Creek at GA 9, Near Cumming, GA

Downstream on Big Creek ↓

Big Creek Below Hog Wallow Creek at Roswell, GA

CFS Discharge

2.53

Gage Height (ft)

Normal

Flow Condition

Normal

Flood Status

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	24
25th	Low threshold	40
50th (Median)	Normal (median)	63
75th	High threshold	92	Today: 81 cfs
95th	Very High threshold	205

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	138	3.19
May 27, 2026	207	3.87
May 26, 2026	739	6.50
May 25, 2026	968	7.56
May 24, 2026	187	3.17
May 23, 2026	84	2.55
May 22, 2026	65	2.29
May 21, 2026	32	1.71
May 20, 2026	31	1.70
May 19, 2026	32	1.73
May 18, 2026	33	1.75
May 17, 2026	35	1.79
May 16, 2026	37	1.83
May 15, 2026	39	1.87
Apr 21, 2026	32	1.73
Apr 20, 2026	32	1.72
Apr 19, 2026	33	1.74
Apr 18, 2026	34	1.77
Apr 17, 2026	40	1.88
Apr 16, 2026	42	1.92
Apr 15, 2026	42	1.93
Apr 14, 2026	42	1.93
Apr 13, 2026	42	1.91
Apr 12, 2026	43	1.94
Apr 11, 2026	45	1.98
Apr 10, 2026	46	1.99
Apr 9, 2026	47	2.02
Apr 8, 2026	48	2.04
Apr 7, 2026	52	2.10
Apr 6, 2026	63	2.27

Station Information

USGS Site No: 02335700
State: GA
County: Fulton County
Coordinates: 34.0506, -84.2694
Drainage Area: 72 mi²
Datum (ft): 960.8
HUC Code: 03130001

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 6.0 ft
Flood Stage: 7.0 ft
Moderate Flood: 11.0 ft
Major Flood: 13.0 ft

Currently 4.47 ft below flood stage.

Recent Extremes

Max discharge: 968 cfs

May 25, 2026
Min discharge: 24 cfs

Sep 23, 2025
Days at flood stage: 2

Computed from the local daily-values archive.

Nearby Gauges

Sweetwater Creek at Club Drive Near Lilburn, GA
12.0 mi · 20 cfs

Normal
Wildcat Creek Near Lawrenceville, GA
15.5 mi · 0 cfs

Unknown
Pew Creek at Patterson Road, Near Lawrenceville, GA
15.8 mi · 2 cfs

Low
Garner Creek Near Snellville, GA
16.3 mi · 0 cfs

Unknown
Little Stone Mountain Creek Near Stone Mountain, GA
16.9 mi · 3 cfs

Very High