Broad River at Gaston Shoals Reservoir/Gaston Shoals Dam, 5 WNW Blacksburg
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
Sender
Sent
- Warning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.No secondary data available. Transformations for Flow data and a secondary Y axis cannot be made at this time.
Traces and Thresholds Click to turn on/off display
Observed (OBS) 06/01/2025 2:00 AM EDTLow Threshold: 0 ftCATEGORY STAGE 
Major Flooding 110 ft Moderate Flooding 108 ft Minor Flooding 104.8 ft Action 102 ft Reliability of the Forecast:
NOTE: Forecasts are not available. Only observed stages are available for this point.
National Water Model Hydrograph
Official NWS streamflow forecasts are produced by NWS hydrologic forecasters for river gauge locations using hydrologic models which are calibrated to that location. This process considers additional guidance and information, including local expertise and experience, to produce the best forecast possible. The NWM output provides supplemental guidance to NWS forecasters and should not be considered an official NWS river forecast.
Flood Impacts
- 104.8 - ROAD TO DAM AND POWER HOUSE WILL BE FLOODED. BRIDGES DOWNSTREAM SUCH AS SC HWY 18, HWY 29 AND I-85 WILL LIKELY BE CLOSED. BACK WATER EFFECTS WILL BE LIKELY ON BUFFALO CREEK.
- 103.8 - AT THIS LEVEL THE POWER PLANT SUBSTATION ROAD WILL LIKELY BE FLOODED. BBGS1 GAGE DOWNSTREAM WILL MOST LIKELY BE READING AROUND 21 FT.
- 102 - MINOR DOWNSTREAM EFFECTS ARE POSSIBLE DUE TO HIGHWATER. WATER WILL APPROACH ROAD TO DAM AND POWER HOUSE. FLS NEEDED.
Gauge Location
Recent Crests
| 1. | 106.80 ft | on 09-28-2024 |
| 2. | 106.20 ft | on 02-07-2020 |
| 3. | 103.07 ft | on 05-06-2013 |
| 4. | 102.95 ft | on 09-04-2012 |
| 5. | 102.88 ft | on 01-25-2010 |
Recent Crests
| 1. | 106.80 ft | on 09-28-2024 |
| 2. | 106.20 ft | on 02-07-2020 |
| 3. | 103.07 ft | on 05-06-2013 |
| 4. | 102.95 ft | on 09-04-2012 |
| 5. | 102.88 ft | on 01-25-2010 |
| 6. | 101.40 ft | on 04-11-2009 |
| 7. | 101.08 ft | on 03-02-2007 |
| 8. | 102.50 ft | on 10-07-2005 |
| 9. | 104.44 ft | on 09-09-2004 |
| 10. | 103.15 ft | on 03-20-2003 |
| 11. | 101.07 ft | on 03-29-2001 |
| 12. | 101.57 ft | on 03-20-2000 |
| 13. | 102.45 ft | on 01-09-1998 |
| 14. | 101.99 ft | on 10-27-1997 |
| 15. | 103.20 ft | on 01-27-1996 |
| 16. | 103.80 ft | on 01-15-1995 |
| 17. | 102.90 ft | on 08-17-1994 |
| 18. | 103.80 ft | on 10-12-1990 |
| 19. | 103.50 ft | on 02-28-1987 |
| 20. | 108.60 ft | on 08-16-1928 |
Historic Crests
| 1. | 108.60 ft | on 08-16-1928 |
| 2. | 106.80 ft | on 09-28-2024 |
| 3. | 106.20 ft | on 02-07-2020 |
| 4. | 104.44 ft | on 09-09-2004 |
| 5. | 103.80 ft | on 01-15-1995 |
Historic Crests
| 1. | 108.60 ft | on 08-16-1928 |
| 2. | 106.80 ft | on 09-28-2024 |
| 3. | 106.20 ft | on 02-07-2020 |
| 4. | 104.44 ft | on 09-09-2004 |
| 5. | 103.80 ft | on 01-15-1995 |
| 6. | 103.80 ft | on 10-12-1990 |
| 7. | 103.50 ft | on 02-28-1987 |
| 8. | 103.20 ft | on 01-27-1996 |
| 9. | 103.15 ft | on 03-20-2003 |
| 10. | 103.07 ft | on 05-06-2013 |
| 11. | 102.95 ft | on 09-04-2012 |
| 12. | 102.90 ft | on 08-17-1994 |
| 13. | 102.88 ft | on 01-25-2010 |
| 14. | 102.50 ft | on 10-07-2005 |
| 15. | 102.45 ft | on 01-09-1998 |
| 16. | 101.99 ft | on 10-27-1997 |
| 17. | 101.57 ft | on 03-20-2000 |
| 18. | 101.40 ft | on 04-11-2009 |
| 19. | 101.08 ft | on 03-02-2007 |
| 20. | 101.07 ft | on 03-29-2001 |
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 618.08 ft |
| moderate Flooding | 616.08 ft |
| minor Flooding | 612.88 ft |
| action | 610.08 ft |
| Latest Value | 602.86 ft |
| Gauge Zero | 508.08 ft |
Gauge Photos
No Images Found
Probability Information
No Images Available
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.