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Cocalico Creek at Ephrata

Highest listed crest 11.63 ftFlood stage 8.0 ft5 crests since 1995

The Cocalico Creek at Ephrata crested above flood stage 5 times among the 5 crests the National Weather Service lists from 1995 to 2021. The highest, 11.63 ft on August 22, 2018, was minor flooding, 3.63 feet above flood stage.

The gauge

Highest listed crest
11.63 ft
August 22, 2018
Flood stage
8.0 ft
No major stage set
Crests at major
0
5 above flood stage
Most recent flood crest
September 2, 2021
11.53 ft, minor flooding
Location
Lancaster County
Near Ephrata (3.1 mi), Wyomissing (12.6 mi), Reading (14.3 mi)
Identifiers
NWS REAP1
No USGS station

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Cocalico Creek at Ephrata
Action stage7.00—The level at which the NWS or its partners begin to take action
Flood stage (minor)8.05Sep 2, 2021Minimal or no property damage, but possibly some public threat

Every listed crest

5 crests from 1995 to 2021. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Cocalico Creek at Ephrata, 1995 to 2021 89101112ft Flood stage 8.0 ft Jun 26, 1995: 8.70 ft, minor floodingAug 4, 2018: 9.77 ft, minor floodingAug 22, 2018: 11.63 ft, minor floodingNov 25, 2018: 9.68 ft, minor floodingSep 2, 2021: 11.53 ft, minor flooding Highest, 11.63 ft, Aug 22, 2018 199520002005201020152020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Cocalico Creek at Ephrata 1990s: 1 2000s: 0 2010s: 3 3 2020s: 1 1990s2000s2010s2020s
  1. These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, Cocalico Creek at Ephrata
1Aug 22, 201811.63+3.63Minor—
2Sep 2, 202111.53+3.53Minor—
3Aug 4, 20189.77+1.77Minor—
4Nov 25, 20189.68+1.68Minor—
5Jun 26, 19958.70+0.70Minor—

Other gauges in Lancaster County

Flood gauges in Lancaster County
Manheim8.09.60 ft, Sep 2, 20210
Lancaster11.027.90 ft, Jun 23, 19729
Mt. Joy12.014.40 ft, Jul 25, 20180
Marietta49.064.54 ft, Jun 23, 19729

Lancaster County: every hazard · River floods across the country · Pennsylvania

NOAA National Water Prediction Service, gauge REAP1, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.