Conestoga River at Lancaster
Lancaster County, Pennsylvania
The past week
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What floods at each level
- 34.6 ft
Approximate level of the FEMA 0.2% Annual Chance Flood level (500-year flood).
- 27.9 ft
Flood of record from Hurricane Agnes in 1972.
- 27 ft
Flood waters begin to reach the South Duke Street Bridge.
- 26.1 ft
Approximate level of the FEMA 1% Annual Chance Flood level (100-year flood).
- 22.6 ft
Flood waters begin to reach the New Holland Pike Bridge, and the Eden Road Bridge. Approximate level of the FEMA 2% Annual Chance Flood level (50-year flood).
- 20 ft
Flood waters begin to reach the East King Street Bridge, the East Strawberry Street Bridge and the bridge at the water treatment facility.
- 17 ft
Flood waters begin to reach the Hunsecker's Mill Covered Bridge.
- 15.6 ft
Approximate level of the FEMA 10% Annual Chance Flood level (10-year flood).
- 15 ft
Many homes near the river are affected by high water.
- 14 ft
The footbridge near the confluence of Stauffer Run begins to flood.
- 13 ft
Several homes are affected by high water.
- 11 ft
Grofftown Road will flood.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Jun 22, 1972 | 27.9 ft | 50,300 cfs |
| Sep 8, 2011 | 21.3 ft | 29,699 cfs |
| Sep 2, 2021 | 18.49 ft | 22,990 cfs |
More on Conestoga River
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