Major Flood
6 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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This is an NWS forecast point (LID: GRNC2). Live data may be limited. View on NWS AHPS →
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
4.5 ft
Minor Flood
3 ft
Action Stage
2.5 ft
What Floods at Each Level
6 ft
There is major flooding along the reach.
4.5 ft
Houses west of and near Bailey flood. Roads flood.
3 ft
Flooding of outbuildings occurs near Shawnee.
2.5 ft
The river is out of its banks and into nearby fields.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Jun 17, 1995 | 2.48 ft | 1,164 cfs |
| May 24, 2000 | 2.14 ft | 880 cfs |
| Jun 4, 1996 | 2.1 ft | 750 cfs |
About This Gauge
NWS LID
GRNC2
River
North Fork South Platte River
County
Park, CO
Coordinates
39.4580°N, 105.6592°W
Get Flood Alerts for North Fork South Platte River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of North Fork South Platte River at Grant?
The North Fork South Platte River at Grant gauge is maintained by USGS and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for North Fork South Platte River at Grant?
The NWS-defined flood stage for North Fork South Platte River at Grant is 3 feet. Action stage begins at 2.5 feet. Moderate flooding starts at 4.5 feet, and major flooding at 6 feet.
How do I get alerts when North Fork South Platte River rises?
Download StormCast free on Google Play, go to River Gauges, and add North Fork South Platte River at Grant to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the North Fork South Platte River at Grant gauge located?
The gauge is located in Park County, Colorado at coordinates 39.4580°N, 105.6592°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
On This River
Downstream: South Platte River at South Platte
More Resources
Source & Notes
Data provided by: CO Division of Water Resources
- Stage may be affected by ice during winter months.