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Sope Creek at Lower Roswell Road near Marietta

Highest listed crest 21.10 ftFlood stage 12.0 ft39 crests since 1963

The Sope Creek at Lower Roswell Road near Marietta crested at major flood stage 6 times among the 39 crests the National Weather Service lists from 1963 to 2024. The highest, 21.10 ft on March 30, 1977, was major flooding, 9.10 feet above flood stage.

The gauge

Highest listed crest
21.10 ft
March 30, 1977; 4,000 cubic feet per second
Flood stage
12.0 ft
Major flooding from 18.0 ft
Crests at major
6
21st of 271 gauges in Georgia
Most recent flood crest
September 27, 2024
12.52 ft, minor flooding
Location
Cobb County
Near Sandy Springs (4.5 mi), Marietta (5.7 mi), Dunwoody (7.5 mi)

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Sope Creek at Lower Roswell Road near Marietta
Action stage10.04Nov 9, 2000The level at which the NWS or its partners begin to take action
Flood stage (minor)12.020Sep 27, 2024Minimal or no property damage, but possibly some public threat
Moderate flood stage15.08Oct 11, 2020Some inundation of structures and roads near the stream
Major flood stage18.06Sep 8, 2021Extensive inundation of structures and roads

Every listed crest

39 crests from 1963 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Sope Creek at Lower Roswell Road near Marietta, 1963 to 2024 510152025ft Flood stage 12.0 ftMajor 18.0 ft Apr 30, 1963: 15.20 ft, moderate flooding; 2,200 cubic feet per secondMar 4, 1966: 19.10 ft, major flooding; 3,000 cubic feet per secondApr 4, 1966: 19.10 ft, major floodingNov 18, 1968: 13.50 ft, minor flooding; 1,800 cubic feet per secondMar 19, 1970: 12.20 ft, minor flooding; 1,600 cubic feet per secondMar 30, 1977: 21.10 ft, major flooding; 4,000 cubic feet per secondFeb 4, 1982: 20.00 ft, major flooding; 3,600 cubic feet per secondOct 25, 1986: 12.01 ft, minor flooding; 3,270 cubic feet per secondJan 20, 1988: 10.21 ft, action stage; 1,820 cubic feet per secondSep 30, 1989: 16.22 ft, moderate flooding; 6,630 cubic feet per secondMar 16, 1990: 15.27 ft, moderate flooding; 5,730 cubic feet per secondMay 5, 1991: 10.91 ft, action stage; 2,650 cubic feet per secondAug 21, 1992: 12.14 ft, minor flooding; 3,510 cubic feet per secondJan 11, 1993: 14.14 ft, minor flooding; 4,930 cubic feet per secondJan 27, 1994: 14.10 ft, minor flooding; 4,900 cubic feet per secondJun 27, 1994: 14.10 ft, minor flooding; 4,900 cubic feet per secondFeb 16, 1995: 15.49 ft, moderate flooding; 5,770 cubic feet per secondJan 27, 1996: 14.32 ft, minor flooding; 4,860 cubic feet per secondJul 23, 1997: 11.25 ft, action stageSep 25, 1997: 13.16 ft, minor flooding; 4,010 cubic feet per secondMar 8, 1998: 15.74 ft, moderate flooding; 5,970 cubic feet per secondApr 9, 1998: 14.20 ft, minor floodingJun 30, 1999: 9.59 ft, below flood stage; 1,770 cubic feet per secondSep 1, 2000: 13.16 ft, minor flooding; 4,010 cubic feet per secondNov 9, 2000: 10.62 ft, action stage; 2,360 cubic feet per secondMay 6, 2003: 13.92 ft, minor flooding; 4,560 cubic feet per secondSep 17, 2004: 17.47 ft, moderate floodingSep 21, 2009: 18.35 ft, major flooding; 9,463 cubic feet per secondNov 11, 2009: 13.15 ft, minor flooding; 3,907 cubic feet per secondApr 16, 2011: 14.23 ft, minor flooding; 4,704 cubic feet per secondJul 12, 2012: 15.70 ft, moderate flooding; 5,994 cubic feet per secondApr 7, 2014: 12.76 ft, minor flooding; 3,636 cubic feet per secondJan 4, 2015: 12.12 ft, minor flooding; 3,217 cubic feet per secondNov 12, 2018: 13.45 ft, minor flooding; 4,121 cubic feet per secondSep 17, 2020: 13.77 ft, minor flooding; 4,356 cubic feet per secondOct 11, 2020: 15.19 ft, moderate flooding; 5,486 cubic feet per secondSep 8, 2021: 18.05 ft, major flooding; 9,030 cubic feet per secondJan 4, 2023: 13.31 ft, minor floodingSep 27, 2024: 12.52 ft, minor flooding; 3,476 cubic feet per second Highest, 21.10 ft, Mar 30, 1977 197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Sope Creek at Lower Roswell Road near Marietta 1960s: 4 1970s: 2 1980s: 3 1990s: 10 10 2000s: 5 2010s: 5 2020s: 5 1960s1970s1980s1990s2000s2010s2020s
  1. These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, Sope Creek at Lower Roswell Road near Marietta
1Mar 30, 197721.10+9.10Major4,000
2Feb 4, 198220.00+8.00Major3,600
3Mar 4, 196619.10+7.10Major3,000
4Apr 4, 196619.10+7.10Major—
5Sep 21, 200918.35+6.35Major9,463
6Sep 8, 202118.05+6.05Major9,030
7Sep 17, 200417.47+5.47Moderate—
8Sep 30, 198916.22+4.22Moderate6,630
9Mar 8, 199815.74+3.74Moderate5,970
10Jul 12, 201215.70+3.70Moderate5,994
11Feb 16, 199515.49+3.49Moderate5,770
12Mar 16, 199015.27+3.27Moderate5,730
13Apr 30, 196315.20+3.20Moderate2,200
14Oct 11, 202015.19+3.19Moderate5,486
15Jan 27, 199614.32+2.32Minor4,860
16Apr 16, 201114.23+2.23Minor4,704
17Apr 9, 199814.20+2.20Minor—
18Jan 11, 199314.14+2.14Minor4,930
19Jan 27, 199414.10+2.10Minor4,900
20Jun 27, 199414.10+2.10Minor4,900
21May 6, 200313.92+1.92Minor4,560
22Sep 17, 202013.77+1.77Minor4,356
23Nov 18, 196813.50+1.50Minor1,800
24Nov 12, 201813.45+1.45Minor4,121
25Jan 4, 202313.31+1.31Minor—
26Sep 25, 199713.16+1.16Minor4,010
27Sep 1, 200013.16+1.16Minor4,010
28Nov 11, 200913.15+1.15Minor3,907
29Apr 7, 201412.76+0.76Minor3,636
30Sep 27, 202412.52+0.52Minor3,476
31Mar 19, 197012.20+0.20Minor1,600
32Aug 21, 199212.14+0.14Minor3,510
33Jan 4, 201512.12+0.12Minor3,217
34Oct 25, 198612.01+0.01Minor3,270
35Jul 23, 199711.25−0.75Action—
36May 5, 199110.91−1.09Action2,650
37Nov 9, 200010.62−1.38Action2,360
38Jan 20, 198810.21−1.79Action1,820
39Jun 30, 19999.59−2.41Below flood stage1,770

Other gauges in Cobb County

Flood gauges in Cobb County
Stilesboro Road near Acworth13.023.90 ft, Sep 21, 20091
Mack Dobbs Road near Kennesaw11.014.27 ft, Sep 21, 20090
US 41 at Atlanta14.028.59 ft, Sep 22, 20095
US Highway 78 and 278 near Mableton10.019.85 ft, Sep 22, 20090
Chastain Meadows Parkway near Kennesaw11.011.94 ft, Sep 27, 20240
Hawkins Store Road near Blackwells11.017.31 ft, Sep 21, 20090
Shallowford River near Woodstock10.019.66 ft, Sep 21, 20091
Powder Springs Road near Powder Springs11.023.20 ft, Sep 22, 20091
Clay Road near Austell12.027.40 ft, Sep 22, 20091
Powder Springs11.019.82 ft, Sep 21, 20090
Interstate North Parkway near Smyrna14.014.67 ft, Sep 8, 20210
GA 120 near Marietta11.013.26 ft, Sep 21, 20090
Brownsville Road near Powder Springs13.031.45 ft, Sep 21, 20091
Northwest Austell19.037.04 ft, Sep 22, 20091
GA 120 near Roswell12.014.70 ft, Sep 21, 20090

Cobb County: every hazard · River floods across the country · Georgia

NOAA National Water Prediction Service, gauge MARG1, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.