How high is the Big Creek at GA 9, Near Cumming, GA right now?

The Big Creek at GA 9, Near Cumming, GA is currently flowing at 49 cubic feet per second with a gage height of 0.10 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Big Creek at GA 9, Near Cumming, GA normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 58th percentile compared to the long-term historical record at this gauge.

Is the Big Creek at GA 9, Near Cumming, GA at flood stage?

No — the gage height is 5.90 feet below the NWS flood-stage threshold of 6.0 feet.

What is the historical median flow for the Big Creek at GA 9, Near Cumming, GA on June 11?

The long-term median discharge for this date is 41 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 19 to unavailable cfs.

Where is the Big Creek at GA 9, Near Cumming, GA stream gauge located?

The Big Creek at GA 9, Near Cumming, GA stream gauge is operated by the USGS in Forsyth County, GA on the Big Creek. USGS site number 02335580 (coordinates 34.1559, -84.2187).

Big Creek at GA 9, Near Cumming, GA

USGS Site No: 02335580 • Big Creek • Forsyth County, GA

Big Creek at GA 9, Near Cumming, GA on the Big Creek is currently at 49 cfs (Normal — 58th percentile for this date) . Gage height: 0.10 ft.

Reading from 1 week ago

Downstream on Big Creek ↓

Big Creek Near Alpharetta, GA

CFS Discharge

0.10

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	19
25th	Low threshold	28
50th (Median)	Normal (median)	41
75th	High threshold	65	Today: 49 cfs
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	66	0.47
May 27, 2026	106	1.10
May 26, 2026	113	1.19
May 25, 2026	—	5.02
May 24, 2026	116	0.50
May 23, 2026	34	-0.29
May 22, 2026	48	0.02
May 21, 2026	41	-0.22
May 20, 2026	24	-0.60
May 19, 2026	25	-0.59
May 18, 2026	26	-0.55
May 17, 2026	26	-0.54
May 16, 2026	27	-0.50
May 15, 2026	28	-0.48
Apr 21, 2026	23	-0.53
Apr 20, 2026	24	-0.52
Apr 19, 2026	24	-0.52
Apr 18, 2026	24	-0.50
Apr 17, 2026	26	-0.45
Apr 16, 2026	27	-0.40
Apr 15, 2026	27	-0.40
Apr 14, 2026	28	-0.39
Apr 13, 2026	27	-0.41
Apr 12, 2026	28	-0.38
Apr 11, 2026	29	-0.36
Apr 10, 2026	30	-0.30
Apr 9, 2026	31	-0.29
Apr 8, 2026	32	-0.25
Apr 7, 2026	33	-0.24
Apr 6, 2026	34	-0.21

Station Information

USGS Site No: 02335580
State: GA
County: Forsyth County
Coordinates: 34.1559, -84.2187
Drainage Area: 37 mi²
Datum (ft): 1,007.8
HUC Code: 03130001

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 4.0 ft
Flood Stage: 6.0 ft
Moderate Flood: 12.0 ft
Major Flood: 15.0 ft

Currently 5.90 ft below flood stage.

Recent Extremes

Max discharge: 434 cfs

Jan 10, 2026
Min discharge: 22 cfs

Oct 18, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

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

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

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

Low
Shoal Creek at Paper Mill Road, near Lawrenceville, GA
21.0 mi · 2 cfs

Normal
Wheeler Creek at Bill Cheek Road, Near Auburn, GA
21.5 mi · 1 cfs

Normal