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Big Creeknear Alpharetta, GA (Gauge APHG1)
Forecast | Observation History | Stage Impacts/Record Events
Stages:
Normal
Action
Flood
Moderate Flood
Major Flood
River Stage Data for Gauge APHG1
Normal Stage: 3.69 ft
Flow: 223 kcfs*
(impacts and historical events)
Action Stages:
6': Action
7': Flood
10': Moderate Flood
12': Major Flood
Gauge APHG1 Forecast / History chart | graph
Stage Date CST Stage ft Flow kcfs
FORECAST 01/13/2009 01:00 pm 2.10 0.050
FORECAST 01/13/2009 07:00 am 2.10 0.050
FORECAST 01/13/2009 01:00 am 2.10 0.050
FORECAST 01/12/2009 07:00 pm 2.10 0.050
FORECAST 01/12/2009 01:00 pm 2.20 0.055
FORECAST 01/12/2009 07:00 am 2.20 0.055
FORECAST 01/12/2009 01:00 am 2.30 0.062
FORECAST 01/11/2009 07:00 pm 2.30 0.062
FORECAST 01/11/2009 01:00 pm 2.30 0.062
FORECAST 01/11/2009 07:00 am 2.40 0.068
FORECAST 01/10/2009 07:00 pm 2.70 0.090
FORECAST 01/10/2009 01:00 pm 2.80 0.098
FORECAST 01/10/2009 07:00 am 3.00 0.115
FORECAST 01/10/2009 01:00 am 3.10 0.124
FORECAST 01/09/2009 07:00 pm 3.20 0.133
FORECAST 01/09/2009 01:00 pm 3.40 0.152
FORECAST 01/09/2009 07:00 am 3.90 0.205
FORECAST 01/09/2009 01:00 am 4.50 0.280
FORECAST 01/08/2009 07:00 pm 5.40 0.422
CURRENT 01/09/2009 08:30 am 3.69 0.182
  01/09/2009 08:15 am 3.70 0.183
  01/09/2009 08:00 am 3.71 0.184
  01/09/2009 07:45 am 3.73 0.186
  01/09/2009 07:30 am 3.74 0.187
  01/09/2009 07:15 am 3.76 0.190
  01/09/2009 07:00 am 3.77 0.191
  01/09/2009 06:45 am 3.78 0.192
  01/09/2009 06:30 am 3.80 0.194
  01/09/2009 06:15 am 3.82 0.196
  01/09/2009 06:00 am 3.84 0.198
  01/09/2009 05:45 am 3.86 0.201
  01/09/2009 05:30 am 3.88 0.203
  01/09/2009 05:15 am 3.90 0.205
  01/09/2009 05:00 am 3.91 0.206
  01/09/2009 04:45 am 3.93 0.209
  01/09/2009 04:30 am 3.95 0.211
  01/09/2009 04:15 am 3.97 0.213
  01/09/2009 04:00 am 3.99 0.216
  01/09/2009 03:45 am 4.00 0.217
  01/09/2009 03:30 am 4.02 0.219
  01/09/2009 03:15 am 4.05 0.223
  01/09/2009 03:00 am 4.06 0.224
  01/09/2009 02:45 am 4.09 0.228
  01/09/2009 02:30 am 4.11 0.230
  01/09/2009 02:15 am 4.13 0.233
  01/09/2009 02:00 am 4.15 0.235
  01/09/2009 01:45 am 4.17 0.237
  01/09/2009 01:30 am 4.19 0.240
  01/09/2009 01:15 am 4.21 0.242
  01/09/2009 01:00 am 4.24 0.246
Flood Impacts and Historical Events
Stage Impacts
12.0MAJOR FLOODING BEGINS. BRIDGE ALONG KIMBALL BRIDGE ROAD IS OVERTOPPED RESULTING IN CLOSURE OF KIMBALL BRIDGE ROAD. FLOODING OF HOMES BEGINS ALONG AND NEAR BIG CREEK FROM CUMMING IN FORSYTH COUNTY TO ALPHARETTA AND ROSWELL IN FULTON COUNTY. ADDITIONAL FLOODING IS COMMON ALONG OLD FEDERAL ROAD AND NICHOLSON ROAD NEAR THE ETOWAH RIVER IN WESTERN FORSYTH COUNTY.
10.0MODERATE FLOODING BEGINS. FLOODING OF YARDS BEGINS ALONG THE REACH OF CREEK BETWEEN CUMMING IN FORSYTH COUNTY THROUGH ALPHARETTA AND ROSWELL IN NORTH FULTON COUNTY. ADDITIONAL FLOODING IS COMMON ALONG OLD FEDERAL ROAD AND NICHOLSON ROAD NEAR THE ETOWAH RIVER IN WESTERN FORSYTH COUNTY.
9.0ALPHARETTA GREENWAY EXPERIENCES SIGNIFICANT FLOODING AND RESULTS IN CLOSURE OF MOST OF THE WALKING AND BIKING PATHS.
8.0MINOR FLOODING CONTINUES. ALPHARETTA GREENWAY BEGINS FLOODING AND RESULTS IN RESIDENTS NOT BEING ABLE TO USE WALKING AND BIKING PATHS. DOWNSTREAM...CHATTAHOOCHEE RIVER ROAD INTO PARK NEAR ROSWELL AT STATE HIGHWAY 9 AND RIVERSIDE ROAD BEGINS TO FLOOD.
7.0BANKFULL AND FLOOD STAGE ARE REACHED ALONG BIG CREEK BETWEEN CUMMING IN FORSYTH COUNTY...TO ALPHARETTA...AND ROSWELL IN NORTH FULTON COUNTY. FLOODING STARTS TO EFFECT THE ALPHARETTA GREENWAY AND ABOUT 200 FEET OF THE GREENWAY NEED TO BE CLOSED. IN ADDITION...HIGH WATER BEGINS TO ENCROACH INTO PARK DOWNSTREAM OF GAGE NEAR ROSWELL ALONG STATE HIGHWAY 9 AND RIVERSIDE ROAD.
Historical Crests Record Lows
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) 12.30 ft on 12/06/1983
5) 12.20 ft on 03/30/1977
6) 11.97 ft on 12/31/1961
7) 11.93 ft on 09/17/2004
8) 11.82 ft on 03/26/1964
9) 11.71 ft on 01/13/1993
10) 11.65 ft on 04/14/1979
1) 0.90 ft on 10/11/1974
2) 1.00 ft on 09/09/1999
3) 1.10 ft on 09/12/2007
3) 1.10 ft on 09/30/2007

Data provided by NOAA Advanced Hydrologic Prediction Service

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