Crooked Creek near Norcross
Flood levels
Official flood levels at this gauge: action stage begins at 9.0 ft; minor flooding begins at 11.0 ft; moderate flooding begins at 14.0 ft; major flooding begins at 16.0 ft.
| Action stage | 9.0 ft |
|---|---|
| Minor flooding | 11.0 ft |
| Moderate flooding | 14.0 ft |
| Major flooding | 16.0 ft |
Highest recorded crests
- 14.6 ft on Sep 21, 2009 (historic crest)
- 13.7 ft on Sep 21, 2009 (historic crest)
- 13.6 ft on Oct 11, 2020 (historic crest)
- 13.6 ft on Jun 20, 2017 (historic crest)
What the water does
National Weather Service impact statements for this gauge, in the Weather Service's own words.
| 9.0 ft | Bankfull conditions occur upstream and downstream from the gage at Spalding Drive. |
|---|---|
| 11.0 ft | Flood stage is reached. Minor flooding of the natural flood plain begins mainly on the left bank upstream and downstream from the gauge at Spalding Drive. |
| 13.0 ft | Minor flooding continues of the natural flood plain mainly on the left bank upstream and downstream from the gage at Spalding Drive. The water level reaches the bottom of the shallow bridge on Spalding Drive. |
| 14.0 ft | Moderate flooding begins. Significant flooding occurs mainly on the left bank upstream and downstream from the gage at Spalding Drive. The Spalding Drive bridge begins to form an obstacle and act like a dam causing some backwater and erosion eddies to the sides of the bridge. County officials may need to close it. |
| 15.0 ft | Significant flooding continues mainly on the left bank upstream and downstream from the gage at Spalding Drive. The Spalding Drive bridge forms an obstacle and acts like a dam causing some backwater and erosion eddies to the sides of the bridge. A portion of Spalding Drive just west of the bridge begins to flood. County officials will likely close the bridge and road. |
| 16.0 ft | Major flooding begins and inundates the woodlands and fields upstream and downstream from the gage at Spalding Drive. The water level reaches the top of the Spalding Drive bridge causing severe erosion and potentially a washout. A large portion of Spalding Drive is flooded around a one foot deep. County officials will close the bridge and road. |
Forecast office: NWS Peachtree City · River Forecast Center: Southeast River Forecast Center.
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Nearby stations and gauges
- Chattahoochee River above Roswell NWS gauge · 3.3 mi
- Chattahoochee River at Highway 141 near Norcross NWS gauge · 4.2 mi
- North Fork Peachtree Creek at Graves Road near Norcross NWS gauge · 4.7 mi
- Beaver Ruin Creek at Mitchell Road near Norcross NWS gauge · 4.9 mi
- Bromolow Creek Tributary at Pond Road near Norcross NWS gauge · 5.7 mi
- Big Creek near Alpharetta NWS gauge · 5.9 mi