Big Creek near Alpharetta

Last updated: Apr 4, 2025, 4:50 PM UTC

No watches, warnings or advisories are in effect for this area.

Warning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.

US Geological Survey
Observations courtesy of U.S. Geological Survey

Scale to Flood Categories

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Traces and Thresholds Click to turn on/off display

Observed (OBS) 04/04/2025 11:45 AM EDT

Record: 13.1 ft

CATEGORY STAGE

Major Flooding 13 ft

Moderate Flooding 11 ft

Minor Flooding 7 ft

Action 6 ft

Reliability of the Forecast:

NOTE: Forecasts are issued as needed during times of high water, but are not routinely available.

Automated gauge readings are now available, courtesy of the USGS.
River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.
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	CATEGORY	STAGE
	Major Flooding	13 ft
	Moderate Flooding	11 ft
	Minor Flooding	7 ft
	Action	6 ft

Flood Impacts 🅘

19 - Catastrophic flooding occurs along the creek with water reaching the bottom of Kimball Bridge Road. Webb Bridge Road...McGinnis Ferry Road...Windward Parkway...Haynes Bridge Road...and Georgia 400 will be under a few feet of water. Apartments on Gran Crique Drive and Jameson Pass in Alpharetta and numerous homes on Jade Cove Circle and La View Circle near Roswell will be flooded. Rock Mill Park will be completely under water. Flood waters begin to reach several buildings in the Northpoint Mall complex.
17 - Flooding never seen before will affect portions of Alpharetta along the creek. Webb Bridge Road...McGinnis Ferry Road...Haynes Bridge Road...Old Holcomb Bridge Road and Georgia 400 will be under water. Several apartments on Gran Crique Drive and numerous homes on Jade Cove Circle and La View Circle near Roswell will be flooded. Flooding expands in the Rock Mill Park with water covering the concrete pad of the octagon pavilion and half of the parking lot. The Big Creek Greenway is flooded up to 11 feet deep.
15 - Record flooding continues upstream and downstream from Kimball Bridge Road. Flooding occurs on Webb Bridge Road...McGinnis Ferry Road...Haynes Bridge Road...Old Holcomb Bridge Road and Georgia 400. Flood waters enter several apartments on Gran Crique Drive and numerous homes on Jade Cove Circle and La View Circle near Roswell. Flooding expands in the Rock Mill Park with water covering the concrete pad of the square pavilion and more of the parking lot. The Big Creek Greenway is flooded up to 9 feet deep.

Gauge Info

Coordinates	34.0506, -84.2694
RFC	SERFC
State	GA
WFO	FFC
County	Fulton
Data Provider(s)
US Geological Survey	USGS--Water Resources of the United States
USGS	02335700
COE	Website

Gauge Location

Recent Crests

1.	10.29 ft	on 02-14-2025
2.	7.49 ft	on 12-12-2024
3.	10.77 ft	on 09-27-2024
4.	7.44 ft	on 03-10-2024
5.	8.48 ft	on 03-07-2024

Historic Crests

1.	13.05 ft	on 02-03-1982
2.	12.81 ft	on 03-17-1990
3.	12.54 ft	on 02-21-1961
4.	12.50 ft	on 09-22-2009
5.	12.30 ft	on 12-06-1983

Low Water Records

(P) - Preliminary values subject to further review
¹ - Gauge datum changed during this year

Vertical Datum Table

type	NAVD88	STND
major Flooding	973.80 ft	13.00 ft
moderate Flooding	971.80 ft	11.00 ft
minor Flooding	967.80 ft	7.00 ft
action	966.80 ft	6.00 ft
Latest Value	963.05 ft	2.25 ft
Gauge Zero	960.80 ft	0.00 ft

Gauge Photos

No Images Found

Probability Information

Photo 1 of 3

Short Range Forecast Uncertainty
About this graph | Product Description Document
Weekly Chance of Exceeding Levels
- About this graph
Chance of Exceeding Levels During Entire Period
- About this graph

Unique Local Info

USGS Flood Inundation Mapper for a large portion of Big Creek is available at: https://fim.wim.usgs.gov/fim/

Potential River Levels - Used to

Potential River Levels Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS)	7 Day (NAEFS)	7 Day (GEFS)

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 Hours.

Collaborative Agencies

The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

Resources

Hydrologic Resource Links

Additional Resource Links

WFO Information

Weather Forecast Office

Peachtree City/Atlanta

4 Falcon Drive

Peachtree City, GA 30269

(770) 486-1133

Ask Questions/Webmaster

Official Homepage

1.	10.29 ft	on 02-14-2025
2.	7.49 ft	on 12-12-2024
3.	10.77 ft	on 09-27-2024
4.	7.44 ft	on 03-10-2024
5.	8.48 ft	on 03-07-2024
6.	8.57 ft	on 02-13-2024
7.	9.09 ft	on 01-26-2024
8.	10.22 ft	on 01-10-2024
9.	8.21 ft	on 12-27-2023
10.	8.81 ft	on 04-09-2023
11.	7.21 ft	on 01-26-2023
12.	10.61 ft	on 01-05-2023
13.	8.13 ft	on 12-16-2022
14.	9.02 ft	on 12-07-2022
15.	7.01 ft	on 12-01-2022
16.	7.00 ft	on 11-30-2022
17.	7.81 ft	on 05-04-2022
18.	7.74 ft	on 04-06-2022
19.	7.83 ft	on 03-09-2022
20.	8.65 ft	on 02-05-2022
21.	8.08 ft	on 01-03-2022
22.	8.02 ft	on 12-31-2021
23.	9.09 ft	on 09-21-2021
24.	9.63 ft	on 09-08-2021
25.	8.23 ft	on 05-05-2021
26.	8.14 ft	on 03-27-2021
27.	7.41 ft	on 01-27-2021
28.	9.33 ft	on 01-02-2021
29.	7.91 ft	on 11-13-2020
30.	7.05 ft	on 10-30-2020
31.	7.34 ft	on 10-25-2020
32.	11.09 ft	on 10-12-2020
33.	9.20 ft	on 09-18-2020
34.	7.67 ft	on 08-20-2020
35.	8.80 ft	on 04-14-2020
36.	8.51 ft	on 03-26-2020
37.	9.23 ft	on 03-06-2020
38.	7.56 ft	on 02-21-2020
39.	9.46 ft	on 02-19-2020
40.	7.70 ft	on 02-14-2020
41.	9.36 ft	on 02-12-2020
42.	11.27 ft	on 02-07-2020
43.	8.84 ft	on 01-04-2020
44.	9.44 ft	on 07-12-2019
45.	10.44 ft	on 04-20-2019
46.	7.33 ft	on 03-04-2019
47.	10.09 ft	on 02-22-2019
48.	8.17 ft	on 01-25-2019
49.	7.55 ft	on 01-05-2019
50.	10.97 ft	on 12-29-2018
51.	9.60 ft	on 12-10-2018
52.	7.55 ft	on 12-02-2018
53.	10.65 ft	on 11-13-2018
54.	7.36 ft	on 10-11-2018
55.	7.76 ft	on 08-03-2018
56.	9.15 ft	on 04-24-2018
57.	9.16 ft	on 04-24-2018
58.	7.89 ft	on 02-05-2018
59.	7.11 ft	on 09-12-2017
60.	7.13 ft	on 06-04-2017
61.	8.60 ft	on 04-06-2017
62.	8.58 ft	on 02-25-2016
63.	8.92 ft	on 01-23-2016
64.	8.73 ft	on 01-16-2016
65.	7.64 ft	on 12-30-2015
66.	9.92 ft	on 12-25-2015
67.	9.11 ft	on 11-20-2015
68.	7.53 ft	on 11-08-2015
69.	9.79 ft	on 11-03-2015
70.	7.00 ft	on 10-05-2015
71.	8.86 ft	on 08-24-2015
72.	8.42 ft	on 07-04-2015
73.	10.47 ft	on 01-05-2015
74.	7.15 ft	on 12-25-2014
75.	10.21 ft	on 04-08-2014
76.	7.02 ft	on 03-17-2014
77.	7.63 ft	on 01-12-2014
78.	10.48 ft	on 12-23-2013
79.	8.01 ft	on 12-10-2013
80.	9.05 ft	on 08-20-2013
81.	7.79 ft	on 08-11-2013
82.	8.62 ft	on 08-08-2013
83.	9.31 ft	on 08-02-2013
84.	7.89 ft	on 07-05-2013
85.	10.25 ft	on 05-20-2013
86.	9.74 ft	on 05-06-2013
87.	7.45 ft	on 03-24-2013
88.	7.02 ft	on 02-23-2013
89.	7.40 ft	on 02-01-2013
90.	7.58 ft	on 03-04-2012
91.	9.23 ft	on 04-16-2011
92.	7.47 ft	on 12-01-2010
93.	8.02 ft	on 07-18-2010
94.	7.08 ft	on 05-03-2010
95.	9.74 ft	on 03-11-2010
96.	9.95 ft	on 02-06-2010
97.	9.53 ft	on 01-26-2010
98.	8.96 ft	on 12-26-2009
99.	9.32 ft	on 12-19-2009
100.	9.12 ft	on 12-10-2009
101.	8.50 ft	on 12-03-2009
102.	11.08 ft	on 11-12-2009
103.	10.61 ft	on 10-13-2009
104.	12.50 ft	on 09-22-2009
105.	10.78 ft	on 01-07-2009
106.	9.42 ft	on 11-17-2006
107.	7.70 ft	on 04-01-2005
108.	8.27 ft	on 03-29-2005
109.	11.93 ft	on 09-17-2004
110.	9.10 ft	on 07-03-2003
111.	7.26 ft	on 06-19-2003
112.	7.86 ft	on 06-13-2003
113.	7.20 ft	on 05-19-2003
114.	9.40 ft	on 05-07-2003
115.	10.90 ft	on 03-07-2003
116.	8.00 ft	on 02-23-2003
117.	9.62 ft	on 03-31-2002
118.	8.44 ft	on 01-20-2001
119.	7.63 ft	on 09-21-2000
120.	6.77 ft	on 01-01-1999
121.	10.47 ft	on 04-09-1998
122.	11.29 ft	on 03-09-1998
123.	11.17 ft	on 03-08-1998
124.	11.08 ft	on 02-05-1998
125.	10.55 ft	on 10-27-1997
126.	8.01 ft	on 09-25-1997
127.	7.86 ft	on 07-23-1997
128.	8.22 ft	on 04-29-1997
129.	10.76 ft	on 03-01-1997
130.	10.80 ft	on 03-01-1997
131.	10.76 ft	on 01-01-1997
132.	11.09 ft	on 01-28-1996
133.	10.40 ft	on 02-17-1995
134.	7.71 ft	on 03-29-1994
135.	11.71 ft	on 01-13-1993
136.	9.82 ft	on 02-26-1992
137.	8.30 ft	on 09-02-1991
138.	12.81 ft	on 03-17-1990
139.	6.72 ft	on 06-23-1989
140.	10.10 ft	on 09-13-1988
141.	10.49 ft	on 03-01-1987
142.	5.22 ft	on 09-04-1986
143.	7.61 ft	on 02-02-1985
144.	12.30 ft	on 12-06-1983
145.	9.08 ft	on 04-09-1983
146.	13.05 ft	on 02-03-1982
147.	7.87 ft	on 02-19-1981
148.	10.62 ft	on 03-09-1980
149.	11.65 ft	on 04-14-1979
150.	10.15 ft	on 11-06-1977
151.	12.20 ft	on 03-30-1977
152.	10.80 ft	on 03-31-1976
153.	10.14 ft	on 03-14-1975
154.	10.81 ft	on 01-01-1974
155.	9.82 ft	on 03-17-1973
156.	10.78 ft	on 01-11-1972
157.	7.89 ft	on 03-04-1971
158.	8.03 ft	on 03-21-1970
159.	9.92 ft	on 08-23-1969
160.	9.73 ft	on 01-11-1968
161.	9.22 ft	on 08-25-1967
162.	11.26 ft	on 03-05-1966
163.	7.17 ft	on 01-23-1965
164.	11.82 ft	on 03-26-1964
165.	10.77 ft	on 04-30-1963
166.	11.97 ft	on 12-31-1961
167.	12.54 ft	on 02-21-1961

1.	13.05 ft	on 02-03-1982
2.	12.81 ft	on 03-17-1990
3.	12.54 ft	on 02-21-1961
4.	12.50 ft	on 09-22-2009
5.	12.30 ft	on 12-06-1983
6.	12.20 ft	on 03-30-1977
7.	11.97 ft	on 12-31-1961
8.	11.93 ft	on 09-17-2004
9.	11.82 ft	on 03-26-1964
10.	11.71 ft	on 01-13-1993
11.	11.65 ft	on 04-14-1979
12.	11.29 ft	on 03-09-1998
13.	11.27 ft	on 02-07-2020
14.	11.26 ft	on 03-05-1966
15.	11.17 ft	on 03-08-1998
16.	11.09 ft	on 10-12-2020
17.	11.09 ft	on 01-28-1996
18.	11.08 ft	on 11-12-2009
19.	11.08 ft	on 02-05-1998
20.	10.97 ft	on 12-29-2018
21.	10.90 ft	on 03-07-2003
22.	10.81 ft	on 01-01-1974
23.	10.80 ft	on 03-31-1976
24.	10.80 ft	on 03-01-1997
25.	10.78 ft	on 01-11-1972
26.	10.78 ft	on 01-07-2009
27.	10.77 ft	on 09-27-2024
28.	10.77 ft	on 04-30-1963
29.	10.76 ft	on 01-01-1997
30.	10.76 ft	on 03-01-1997
31.	10.65 ft	on 11-13-2018
32.	10.62 ft	on 03-09-1980
33.	10.61 ft	on 01-05-2023
34.	10.61 ft	on 10-13-2009
35.	10.55 ft	on 10-27-1997
36.	10.49 ft	on 03-01-1987
37.	10.48 ft	on 12-23-2013
38.	10.47 ft	on 04-09-1998
39.	10.47 ft	on 01-05-2015
40.	10.44 ft	on 04-20-2019
41.	10.40 ft	on 02-17-1995
42.	10.29 ft	on 02-14-2025
43.	10.25 ft	on 05-20-2013
44.	10.22 ft	on 01-10-2024
45.	10.21 ft	on 04-08-2014
46.	10.15 ft	on 11-06-1977
47.	10.14 ft	on 03-14-1975
48.	10.10 ft	on 09-13-1988
49.	10.09 ft	on 02-22-2019
50.	9.95 ft	on 02-06-2010
51.	9.92 ft	on 08-23-1969
52.	9.92 ft	on 12-25-2015
53.	9.82 ft	on 02-26-1992
54.	9.82 ft	on 03-17-1973
55.	9.79 ft	on 11-03-2015
56.	9.74 ft	on 03-11-2010
57.	9.74 ft	on 05-06-2013
58.	9.73 ft	on 01-11-1968
59.	9.63 ft	on 09-08-2021
60.	9.62 ft	on 03-31-2002
61.	9.60 ft	on 12-10-2018
62.	9.53 ft	on 01-26-2010
63.	9.46 ft	on 02-19-2020
64.	9.44 ft	on 07-12-2019
65.	9.42 ft	on 11-17-2006
66.	9.40 ft	on 05-07-2003
67.	9.36 ft	on 02-12-2020
68.	9.33 ft	on 01-02-2021
69.	9.32 ft	on 12-19-2009
70.	9.31 ft	on 08-02-2013
71.	9.23 ft	on 04-16-2011
72.	9.23 ft	on 03-06-2020
73.	9.22 ft	on 08-25-1967
74.	9.20 ft	on 09-18-2020
75.	9.16 ft	on 04-24-2018
76.	9.15 ft	on 04-24-2018
77.	9.12 ft	on 12-10-2009
78.	9.11 ft	on 11-20-2015
79.	9.10 ft	on 07-03-2003
80.	9.09 ft	on 09-21-2021
81.	9.09 ft	on 01-26-2024
82.	9.08 ft	on 04-09-1983
83.	9.05 ft	on 08-20-2013
84.	9.02 ft	on 12-07-2022
85.	8.96 ft	on 12-26-2009
86.	8.92 ft	on 01-23-2016
87.	8.86 ft	on 08-24-2015
88.	8.84 ft	on 01-04-2020
89.	8.81 ft	on 04-09-2023
90.	8.80 ft	on 04-14-2020
91.	8.73 ft	on 01-16-2016
92.	8.65 ft	on 02-05-2022
93.	8.62 ft	on 08-08-2013
94.	8.60 ft	on 04-06-2017
95.	8.58 ft	on 02-25-2016
96.	8.57 ft	on 02-13-2024
97.	8.51 ft	on 03-26-2020
98.	8.50 ft	on 12-03-2009
99.	8.48 ft	on 03-07-2024
100.	8.44 ft	on 01-20-2001
101.	8.42 ft	on 07-04-2015
102.	8.30 ft	on 09-02-1991
103.	8.27 ft	on 03-29-2005
104.	8.23 ft	on 05-05-2021
105.	8.22 ft	on 04-29-1997
106.	8.21 ft	on 12-27-2023
107.	8.17 ft	on 01-25-2019
108.	8.14 ft	on 03-27-2021
109.	8.13 ft	on 12-16-2022
110.	8.08 ft	on 01-03-2022
111.	8.03 ft	on 03-21-1970
112.	8.02 ft	on 12-31-2021
113.	8.02 ft	on 07-18-2010
114.	8.01 ft	on 12-10-2013
115.	8.01 ft	on 09-25-1997
116.	8.00 ft	on 02-23-2003
117.	7.91 ft	on 11-13-2020
118.	7.89 ft	on 02-05-2018
119.	7.89 ft	on 07-05-2013
120.	7.89 ft	on 03-04-1971
121.	7.87 ft	on 02-19-1981
122.	7.86 ft	on 06-13-2003
123.	7.86 ft	on 07-23-1997
124.	7.83 ft	on 03-09-2022
125.	7.81 ft	on 05-04-2022
126.	7.79 ft	on 08-11-2013
127.	7.76 ft	on 08-03-2018
128.	7.74 ft	on 04-06-2022
129.	7.71 ft	on 03-29-1994
130.	7.70 ft	on 02-14-2020
131.	7.70 ft	on 04-01-2005
132.	7.67 ft	on 08-20-2020
133.	7.64 ft	on 12-30-2015
134.	7.63 ft	on 01-12-2014
135.	7.63 ft	on 09-21-2000
136.	7.61 ft	on 02-02-1985
137.	7.58 ft	on 03-04-2012
138.	7.56 ft	on 02-21-2020
139.	7.55 ft	on 01-05-2019
140.	7.55 ft	on 12-02-2018
141.	7.53 ft	on 11-08-2015
142.	7.49 ft	on 12-12-2024
143.	7.47 ft	on 12-01-2010
144.	7.45 ft	on 03-24-2013
145.	7.44 ft	on 03-10-2024
146.	7.41 ft	on 01-27-2021
147.	7.40 ft	on 02-01-2013
148.	7.36 ft	on 10-11-2018
149.	7.34 ft	on 10-25-2020
150.	7.33 ft	on 03-04-2019
151.	7.26 ft	on 06-19-2003
152.	7.21 ft	on 01-26-2023
153.	7.20 ft	on 05-19-2003
154.	7.17 ft	on 01-23-1965
155.	7.15 ft	on 12-25-2014
156.	7.13 ft	on 06-04-2017
157.	7.11 ft	on 09-12-2017
158.	7.08 ft	on 05-03-2010
159.	7.05 ft	on 10-30-2020
160.	7.02 ft	on 03-17-2014
161.	7.02 ft	on 02-23-2013
162.	7.01 ft	on 12-01-2022
163.	7.00 ft	on 10-05-2015
164.	7.00 ft	on 11-30-2022
165.	6.77 ft	on 01-01-1999
166.	6.72 ft	on 06-23-1989
167.	5.22 ft	on 09-04-1986