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| 33.0 |
Portions of major highways, including a portion of Interstate 65, become flooded if Catoma Creek rises above 33 feet |
| 30.0 |
Considerable residential flooding occurs in the vicinity of Hayneville Road and also near the Mobile-Selma Highway. Flooding extends north of Hunter Loop Road, and portions of South and West Boulevards also flood |
| 28.0 |
Portions of West Boulevard and U.S. Highway 331 become flooded. Considerable residential and street flooding occurs in the area. Industrial and commercial flooding also occurs along the Mobile-Selma Highway and Interstate 65 |
| 24.0 |
Residential and street flooding becomes a problem at 24 feet...and increases rapidly above 24 feet |
| 20.0 |
Flooding of agricultural lands in the vicinity of the U.S. 331 Highway Bridge occurs |
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Latitude: 32.307499° N,
Longitude: 86.299600° W,
Horizontal Datum:
NAD83
River Stage Reference Frame |
Gauge Height |
Flood Stage |
Uses |
| NWS stage |
0 ft |
20 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 |
151.02 ft |
171.02 ft |
Older USGS topographic maps, NGVD29 benchmarks |
| MSL |
N/A |
N/A |
Older USGS topographic maps, MSL benchmarks |
| Other |
N/A |
N/A |
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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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