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| 25.0 |
Water affects the U.S. Highway 52 causeway near Sabula. |
| 23.0 |
Water affects the railroad tracks and into some businesses in Savanna. |
| 22.0 |
Water affects Driscolls Island. |
| 21.0 |
Basement flooding occurs in homes and businesses in Savanna with seepage into yards. Water also affects grain elevators and affects the lower portion of the Marquette Park parking lot. In Sabula...water affects Vulan and South Broad Streets. |
| 20.0 |
Water seeps into a few back yards in Savanna. Water seeps into yards on Peal and Broad Streets in Sabula. |
| 19.0 |
At Sabula...which is 18 feet on the local gage...water affects South Avenue at the levee and the lowest section of Lake Street. |
| 18.0 |
Water affects businesses on Sabulas North River Drive. |
| 16.0 |
Water affects a few houses at Thompson. |
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Latitude: 41.894000° N,
Longitude: 90.157000° W,
Horizontal Datum:
NAD83
River Stage Reference Frame |
Gauge Height |
Flood Stage |
Uses |
| NWS stage |
0 ft |
16 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 |
568.7 ft |
584.7 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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