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| 13.6 |
At 13.6 ft. developments on the lower Santa Clara River near St. George and the St. George golf course will receive major damage. Increased bank erosion is expected along the lower Santa Clara River. |
| 12.1 |
At 12.1 ft. housing developments and the St. George golf course will receive damage from high water and river flows. Bank erosion is likely in these areas. |
| 11.7 |
At 11.7 ft. river flooding will affect developments on the lower Santa Clara River. |
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Latitude: 37.075400° N,
Longitude: 113.592000° W,
Horizontal Datum:
NAD83
River Stage Reference Frame |
Gauge Height |
Flood Stage |
Uses |
| NWS stage |
0 ft |
11.7 ft |
Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps |
| Vertical Datum |
Elevation (gauge height = 0) |
Elevation (gauge height = flood stage) |
Elevation information source |
| NAVD88 |
N/A |
N/A |
Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps |
| NGVD 29 |
N/A |
N/A |
Older USGS topographic maps, NGVD29 benchmarks |
| MSL |
N/A |
N/A |
Older USGS topographic maps, MSL benchmarks |
| Other |
2560 ft |
2571.7 ft |
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Hydrologic Resources
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Additional Resources
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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. |
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NWS Information |
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