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| 26.3 |
GREATEST FLOOD ON RECORD...AGNES JUNE 23 1972...THE TOWN OF LAWRENCEVILLE PA WAS ALMOST COMPLETELY DESTROYED AND THE ENTIRE POPULATION WAS EVACUATED |
| 23.4 |
FLOOD OF SEPTEMBER 26 1975...THERE WERE 138 RESIDENTIAL...19 COMMERCIAL BUILDINGS IN LAWRENCEVILLE PA WERE AFFECTED |
| 22.0 |
MAJOR DAMAGE BEGINS |
| 21.0 |
WATER REACHES THE HOUSE NEAR THE GAGE |
| 20.0 |
MODERATE DAMAGES |
| 17.0 |
MINOR FLOODING BEGINS. |
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Photos
(1) looking upstream
(2) view of gagehouse
(3) looking downstream
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Latitude: 42.028700° N,
Longitude: 77.132200° W,
Horizontal Datum:
NAD83
River Stage Reference Frame |
Gauge Height |
Flood Stage |
Uses |
| NWS stage |
0 ft |
17 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 |
964.5 ft |
981.5 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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