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Hydrograph River at a Glance Download
Lehigh River at Bethlehem Stage (ft)Flow (kcfs)Observed: 1.61 ft at 6:00PM Aug 18, 2014Observed: 1.6 ft at 6:15PM Aug 18, 2014Observed: 1.6 ft at 6:30PM Aug 18, 2014Observed: 1.59 ft at 6:45PM Aug 18, 2014Observed: 1.59 ft at 7:00PM Aug 18, 2014Observed: 1.58 ft at 7:15PM Aug 18, 2014Observed: 1.58 ft at 7:30PM Aug 18, 2014Observed: 1.58 ft at 7:45PM Aug 18, 2014Observed: 1.57 ft at 8:00PM Aug 18, 2014Observed: 1.57 ft at 8:15PM Aug 18, 2014Observed: 1.57 ft at 8:30PM Aug 18, 2014Observed: 1.57 ft at 8:45PM Aug 18, 2014Observed: 1.57 ft at 9:00PM Aug 18, 2014Observed: 1.57 ft at 9:15PM Aug 18, 2014Observed: 1.57 ft at 9:30PM Aug 18, 2014Observed: 1.56 ft at 9:45PM Aug 18, 2014Observed: 1.56 ft at 10:00PM Aug 18, 2014Observed: 1.56 ft at 10:15PM Aug 18, 2014Observed: 1.56 ft at 10:30PM Aug 18, 2014Observed: 1.56 ft at 10:45PM Aug 18, 2014Observed: 1.56 ft at 11:00PM Aug 18, 2014Observed: 1.56 ft at 11:15PM Aug 18, 2014Observed: 1.56 ft at 11:30PM Aug 18, 2014Observed: 1.56 ft at 11:45PM Aug 18, 2014Observed: 1.55 ft at 12:00AM Aug 19, 2014Observed: 1.55 ft at 12:15AM Aug 19, 2014Observed: 1.55 ft at 12:30AM Aug 19, 2014Observed: 1.55 ft at 12:45AM Aug 19, 2014Observed: 1.54 ft at 1:00AM Aug 19, 2014Observed: 1.54 ft at 1:15AM Aug 19, 2014Observed: 1.54 ft at 1:30AM Aug 19, 2014Observed: 1.54 ft at 1:45AM Aug 19, 2014Observed: 1.53 ft at 2:00AM Aug 19, 2014Observed: 1.53 ft at 2:15AM Aug 19, 2014Observed: 1.53 ft at 2:30AM Aug 19, 2014Observed: 1.53 ft at 2:45AM Aug 19, 2014Observed: 1.53 ft at 3:00AM Aug 19, 2014Observed: 1.52 ft at 3:15AM Aug 19, 2014Observed: 1.52 ft at 3:30AM Aug 19, 2014Observed: 1.52 ft at 3:45AM Aug 19, 2014Observed: 1.52 ft at 4:00AM Aug 19, 2014Observed: 1.52 ft at 4:15AM Aug 19, 2014Observed: 1.52 ft at 4:30AM Aug 19, 2014Observed: 1.52 ft at 4:45AM Aug 19, 2014Observed: 1.52 ft at 5:00AM Aug 19, 2014Observed: 1.52 ft at 5:15AM Aug 19, 2014Observed: 1.52 ft at 5:30AM Aug 19, 2014Observed: 1.51 ft at 5:45AM Aug 19, 2014Observed: 1.51 ft at 6:00AM Aug 19, 2014Observed: 1.51 ft at 6:15AM Aug 19, 2014Observed: 1.51 ft at 6:30AM Aug 19, 2014Observed: 1.51 ft at 6:45AM Aug 19, 2014Observed: 1.51 ft at 7:00AM Aug 19, 2014Observed: 1.51 ft at 7:15AM Aug 19, 2014Observed: 1.51 ft at 7:30AM Aug 19, 2014Observed: 1.51 ft at 7:45AM Aug 19, 2014Observed: 1.51 ft at 8:00AM Aug 19, 2014Observed: 1.51 ft at 8:15AM Aug 19, 2014Observed: 1.51 ft at 8:30AM Aug 19, 2014Observed: 1.51 ft at 8:45AM Aug 19, 2014Observed: 1.52 ft at 9:00AM Aug 19, 2014Observed: 1.52 ft at 9:15AM Aug 19, 2014Observed: 1.52 ft at 9:30AM Aug 19, 2014Observed: 1.52 ft at 9:45AM Aug 19, 2014Observed: 1.52 ft at 10:00AM Aug 19, 2014Observed: 1.52 ft at 10:15AM Aug 19, 2014Observed: 1.52 ft at 10:30AM Aug 19, 2014Observed: 1.52 ft at 10:45AM Aug 19, 2014Observed: 1.52 ft at 11:00AM Aug 19, 2014Observed: 1.52 ft at 11:15AM Aug 19, 2014Observed: 1.52 ft at 11:30AM Aug 19, 2014Observed: 1.52 ft at 11:45AM Aug 19, 2014Observed: 1.52 ft at 12:00PM Aug 19, 2014Observed: 1.52 ft at 12:15PM Aug 19, 2014Observed: 1.52 ft at 12:30PM Aug 19, 2014Observed: 1.51 ft at 12:45PM Aug 19, 2014Observed: 1.51 ft at 1:00PM Aug 19, 2014Observed: 1.51 ft at 1:01PM Aug 19, 2014Observed: 1.52 ft at 1:15PM Aug 19, 2014Observed: 1.52 ft at 1:30PM Aug 19, 2014Observed: 1.52 ft at 1:45PM Aug 19, 2014Observed: 1.52 ft at 2:00PM Aug 19, 2014Observed: 1.52 ft at 2:15PM Aug 19, 2014Observed: 1.52 ft at 2:30PM Aug 19, 2014Observed: 1.52 ft at 2:45PM Aug 19, 2014Observed: 1.52 ft at 3:00PM Aug 19, 2014Observed: 1.52 ft at 3:15PM Aug 19, 2014Observed: 1.52 ft at 3:30PM Aug 19, 2014Observed: 2.24 ft at 3:45PM Aug 19, 2014Observed: 2.24 ft at 3:46PM Aug 19, 2014Highest Observation: 4.97 ft at 4:00PM Aug 19, 2014Observed: 2.43 ft at 4:15PM Aug 19, 2014Observed: 2.43 ft at 4:16PM Aug 19, 2014Observed: 1.53 ft at 4:30PM Aug 19, 2014Observed: 1.53 ft at 4:31PM Aug 19, 2014Observed: 1.51 ft at 4:45PM Aug 19, 2014Observed: 1.51 ft at 5:00PM Aug 19, 2014Observed: 1.51 ft at 5:15PM Aug 19, 2014Observed: 1.51 ft at 5:30PM Aug 19, 2014Observed: 1.5 ft at 5:45PM Aug 19, 2014Observed: 1.5 ft at 6:00PM Aug 19, 2014Observed: 1.5 ft at 6:15PM Aug 19, 2014Observed: 1.5 ft at 6:30PM Aug 19, 2014Observed: 1.5 ft at 6:45PM Aug 19, 2014Observed: 1.5 ft at 7:00PM Aug 19, 2014Observed: 1.5 ft at 7:15PM Aug 19, 2014Observed: 1.49 ft at 7:30PM Aug 19, 2014Observed: 1.5 ft at 7:45PM Aug 19, 2014Observed: 1.49 ft at 8:00PM Aug 19, 2014Observed: 1.5 ft at 8:15PM Aug 19, 2014Observed: 1.5 ft at 8:30PM Aug 19, 2014Observed: 1.5 ft at 8:45PM Aug 19, 2014Observed: 1.5 ft at 9:00PM Aug 19, 2014Observed: 1.5 ft at 9:15PM Aug 19, 2014Observed: 1.5 ft at 9:30PM Aug 19, 2014Observed: 1.5 ft at 9:45PM Aug 19, 2014Observed: 1.5 ft at 10:00PM Aug 19, 2014Observed: 1.5 ft at 10:15PM Aug 19, 2014Observed: 1.5 ft at 10:30PM Aug 19, 2014Observed: 1.5 ft at 10:45PM Aug 19, 2014Observed: 1.5 ft at 11:00PM Aug 19, 2014Observed: 1.5 ft at 11:15PM Aug 19, 2014Observed: 1.5 ft at 11:30PM Aug 19, 2014Observed: 1.5 ft at 11:45PM Aug 19, 2014Observed: 1.5 ft at 12:00AM Aug 20, 2014Observed: 1.5 ft at 12:15AM Aug 20, 2014Observed: 1.49 ft at 12:30AM Aug 20, 2014Observed: 1.49 ft at 12:45AM Aug 20, 2014Observed: 1.49 ft at 1:00AM Aug 20, 2014Observed: 1.49 ft at 1:15AM Aug 20, 2014Observed: 1.49 ft at 1:30AM Aug 20, 2014Observed: 1.49 ft at 1:45AM Aug 20, 2014Observed: 1.49 ft at 2:00AM Aug 20, 2014Observed: 1.49 ft at 2:15AM Aug 20, 2014Observed: 1.48 ft at 2:30AM Aug 20, 2014Observed: 1.48 ft at 2:45AM Aug 20, 2014Observed: 1.48 ft at 3:00AM Aug 20, 2014Observed: 1.48 ft at 3:15AM Aug 20, 2014Observed: 1.48 ft at 3:30AM Aug 20, 2014Observed: 1.48 ft at 3:45AM Aug 20, 2014Observed: 1.48 ft at 4:00AM Aug 20, 2014Observed: 1.48 ft at 4:15AM Aug 20, 2014Observed: 1.48 ft at 4:30AM Aug 20, 2014Observed: 1.48 ft at 4:31AM Aug 20, 2014Observed: 1.48 ft at 4:45AM Aug 20, 2014Observed: 1.48 ft at 5:00AM Aug 20, 2014Observed: 1.48 ft at 5:15AM Aug 20, 2014Observed: 1.48 ft at 5:30AM Aug 20, 2014Observed: 1.48 ft at 5:45AM Aug 20, 2014Observed: 1.48 ft at 6:00AM Aug 20, 2014Observed: 1.48 ft at 6:15AM Aug 20, 2014Observed: 1.48 ft at 6:30AM Aug 20, 2014Observed: 1.48 ft at 6:45AM Aug 20, 2014Observed: 1.48 ft at 7:00AM Aug 20, 2014Observed: 1.48 ft at 7:15AM Aug 20, 2014Observed: 1.48 ft at 7:30AM Aug 20, 2014Observed: 1.48 ft at 7:45AM Aug 20, 2014Observed: 1.48 ft at 8:00AM Aug 20, 2014Observed: 1.47 ft at 8:15AM Aug 20, 2014Observed: 1.47 ft at 8:30AM Aug 20, 2014Observed: 1.47 ft at 8:45AM Aug 20, 2014Observed: 1.47 ft at 9:00AM Aug 20, 2014Observed: 1.47 ft at 9:15AM Aug 20, 2014Observed: 1.47 ft at 9:30AM Aug 20, 2014Observed: 1.47 ft at 9:45AM Aug 20, 2014Observed: 1.46 ft at 10:00AM Aug 20, 2014Observed: 1.46 ft at 10:15AM Aug 20, 2014Observed: 1.47 ft at 10:30AM Aug 20, 2014Observed: 1.47 ft at 10:45AM Aug 20, 2014Observed: 1.47 ft at 11:00AM Aug 20, 2014Observed: 1.47 ft at 11:15AM Aug 20, 2014Observed: 1.47 ft at 11:30AM Aug 20, 2014Observed: 1.47 ft at 11:45AM Aug 20, 2014Observed: 1.47 ft at 12:00PM Aug 20, 2014Observed: 1.47 ft at 12:15PM Aug 20, 2014Observed: 1.47 ft at 12:30PM Aug 20, 2014Observed: 1.47 ft at 12:45PM Aug 20, 2014Observed: 1.48 ft at 1:00PM Aug 20, 2014Observed: 1.48 ft at 1:15PM Aug 20, 2014Observed: 1.48 ft at 1:30PM Aug 20, 2014Observed: 1.48 ft at 1:45PM Aug 20, 2014Observed: 1.48 ft at 2:00PM Aug 20, 2014Observed: 1.48 ft at 2:15PM Aug 20, 2014Observed: 1.48 ft at 2:30PM Aug 20, 2014Observed: 1.49 ft at 2:45PM Aug 20, 2014Observed: 1.49 ft at 3:00PM Aug 20, 2014Observed: 1.49 ft at 3:15PM Aug 20, 2014Observed: 1.49 ft at 3:30PM Aug 20, 2014Observed: 1.49 ft at 3:45PM Aug 20, 2014Observed: 1.49 ft at 4:00PM Aug 20, 2014Observed: 1.48 ft at 4:15PM Aug 20, 2014Observed: 1.49 ft at 4:30PM Aug 20, 2014Observed: 1.49 ft at 4:31PM Aug 20, 2014Observed: 1.48 ft at 4:45PM Aug 20, 2014Observed: 1.48 ft at 5:00PM Aug 20, 2014Observed: 1.48 ft at 5:15PM Aug 20, 2014Observed: 1.48 ft at 5:30PM Aug 20, 2014Observed: 1.48 ft at 5:45PM Aug 20, 2014Observed: 1.48 ft at 6:00PM Aug 20, 2014Observed: 1.47 ft at 6:15PM Aug 20, 2014Observed: 1.47 ft at 6:30PM Aug 20, 2014Observed: 1.47 ft at 6:45PM Aug 20, 2014Observed: 1.46 ft at 7:00PM Aug 20, 2014Observed: 1.46 ft at 7:15PM Aug 20, 2014Observed: 1.46 ft at 7:30PM Aug 20, 2014Observed: 1.46 ft at 7:45PM Aug 20, 2014Observed: 1.46 ft at 8:00PM Aug 20, 2014Observed: 1.46 ft at 8:15PM Aug 20, 2014Observed: 1.46 ft at 8:30PM Aug 20, 2014Observed: 1.46 ft at 8:45PM Aug 20, 2014Observed: 1.46 ft at 9:00PM Aug 20, 2014Observed: 1.46 ft at 9:15PM Aug 20, 2014Observed: 1.46 ft at 9:30PM Aug 20, 2014Observed: 1.46 ft at 9:45PM Aug 20, 2014Observed: 1.46 ft at 10:00PM Aug 20, 2014Observed: 1.46 ft at 10:15PM Aug 20, 2014Observed: 1.46 ft at 10:30PM Aug 20, 2014Observed: 1.46 ft at 10:45PM Aug 20, 2014Observed: 1.47 ft at 11:00PM Aug 20, 2014Observed: 1.46 ft at 11:15PM Aug 20, 2014Observed: 1.46 ft at 11:30PM Aug 20, 2014Observed: 1.46 ft at 11:45PM Aug 20, 2014Observed: 1.46 ft at 12:00AM Aug 21, 2014Observed: 1.46 ft at 12:15AM Aug 21, 2014Observed: 1.46 ft at 12:30AM Aug 21, 2014Observed: 1.46 ft at 12:45AM Aug 21, 2014Observed: 1.46 ft at 1:00AM Aug 21, 2014Observed: 1.45 ft at 1:15AM Aug 21, 2014Observed: 1.45 ft at 1:30AM Aug 21, 2014Observed: 1.45 ft at 1:45AM Aug 21, 2014Observed: 1.44 ft at 2:00AM Aug 21, 2014Observed: 1.44 ft at 2:15AM Aug 21, 2014Observed: 1.44 ft at 2:30AM Aug 21, 2014Observed: 1.44 ft at 2:45AM Aug 21, 2014Observed: 1.44 ft at 3:00AM Aug 21, 2014Observed: 1.44 ft at 3:15AM Aug 21, 2014Observed: 1.44 ft at 3:30AM Aug 21, 2014Observed: 1.44 ft at 3:45AM Aug 21, 2014Observed: 1.43 ft at 4:00AM Aug 21, 2014Observed: 1.43 ft at 4:15AM Aug 21, 2014Observed: 1.43 ft at 4:30AM Aug 21, 2014Observed: 1.43 ft at 4:45AM Aug 21, 2014Observed: 1.43 ft at 5:00AM Aug 21, 2014Observed: 1.43 ft at 5:15AM Aug 21, 2014Observed: 1.43 ft at 5:30AM Aug 21, 2014Observed: 1.43 ft at 5:45AM Aug 21, 2014Observed: 1.43 ft at 6:00AM Aug 21, 2014Observed: 1.43 ft at 6:15AM Aug 21, 2014Observed: 1.43 ft at 6:30AM Aug 21, 2014Observed: 1.43 ft at 6:45AM Aug 21, 2014Observed: 1.43 ft at 7:00AM Aug 21, 2014Observed: 1.43 ft at 7:15AM Aug 21, 2014Observed: 1.43 ft at 7:30AM Aug 21, 2014Observed: 1.43 ft at 7:45AM Aug 21, 2014Observed: 1.43 ft at 8:00AM Aug 21, 2014Observed: 1.43 ft at 8:15AM Aug 21, 2014Observed: 1.43 ft at 8:30AM Aug 21, 2014Observed: 1.43 ft at 8:45AM Aug 21, 2014Observed: 1.43 ft at 9:00AM Aug 21, 2014Observed: 1.43 ft at 9:15AM Aug 21, 2014Observed: 1.43 ft at 9:30AM Aug 21, 2014Observed: 1.43 ft at 9:45AM Aug 21, 2014Observed: 1.43 ft at 10:00AM Aug 21, 2014Observed: 1.43 ft at 10:15AM Aug 21, 2014Observed: 1.43 ft at 10:30AM Aug 21, 2014Observed: 1.43 ft at 10:45AM Aug 21, 2014Observed: 1.43 ft at 11:00AM Aug 21, 2014Observed: 1.43 ft at 11:15AM Aug 21, 2014Observed: 1.43 ft at 11:30AM Aug 21, 2014Observed: 1.43 ft at 11:45AM Aug 21, 2014Observed: 1.43 ft at 12:00PM Aug 21, 2014Observed: 1.43 ft at 12:15PM Aug 21, 2014Observed: 1.43 ft at 12:30PM Aug 21, 2014Observed: 1.43 ft at 12:45PM Aug 21, 2014Observed: 1.43 ft at 1:00PM Aug 21, 2014Observed: 1.44 ft at 1:15PM Aug 21, 2014Observed: 1.44 ft at 1:30PM Aug 21, 2014Observed: 1.44 ft at 1:45PM Aug 21, 2014Observed: 1.44 ft at 2:00PM Aug 21, 2014Observed: 1.44 ft at 2:15PM Aug 21, 2014Observed: 1.44 ft at 2:30PM Aug 21, 2014Observed: 1.44 ft at 2:45PM Aug 21, 2014Observed: 1.44 ft at 3:00PM Aug 21, 2014Observed: 1.44 ft at 3:15PM Aug 21, 2014Observed: 1.44 ft at 3:30PM Aug 21, 2014Observed: 1.44 ft at 3:45PM Aug 21, 2014Observed: 1.44 ft at 4:00PM Aug 21, 2014Observed: 1.44 ft at 4:15PM Aug 21, 2014Observed: 1.44 ft at 4:30PM Aug 21, 2014Observed: 1.43 ft at 4:45PM Aug 21, 2014Observed: 1.43 ft at 5:00PM Aug 21, 2014Observed: 1.43 ft at 5:15PM Aug 21, 2014Observed: 1.43 ft at 5:30PM Aug 21, 2014Forecast: 1.4 ft 8:00PM Aug 21, 2014Forecast: 1.5 ft 2:00AM Aug 22, 2014Forecast: 1.5 ft 8:00AM Aug 22, 2014Highest Forecast: 1.6 ft 2:00PM Aug 22, 2014Highest Forecast: 1.6 ft 8:00PM Aug 22, 2014Highest Forecast: 1.6 ft 2:00AM Aug 23, 2014Highest Forecast: 1.6 ft 8:00AM Aug 23, 2014Forecast: 1.5 ft 2:00PM Aug 23, 2014Forecast: 1.5 ft 8:00PM Aug 23, 2014Forecast: 1.5 ft 2:00AM Aug 24, 2014Forecast: 1.5 ft 8:00AM Aug 24, 2014USGS--Water Resources of the United StatesBETP1(plotting HGIRG) Graph Created (5:46PM Aug 21, 2014)ObservedForecast (issued 9:19AM Aug 21)Latest observed value: 1.43 ft at 5:30 PM EDT 21-Aug-2014. Flood Stage is 16 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Lehigh River at Bethlehem are issued routinely year-round.
Return to Area Map
Upstream Gauge - at Walnutport Upstream Gauge Downstream Gauge Downstream Gauge - at Glendon
Flood Categories (in feet)
Major Flood Stage:22
Moderate Flood Stage:20
Flood Stage:16
Action Stage:12

Historical Crests
(1) 25.90 ft on 05/23/1942
(2) 24.90 ft on 02/28/1902
(3) 23.38 ft on 08/19/1955
(4) 20.02 ft on 06/23/1972
(5) 19.70 ft on 09/18/2004
Show More Historical Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.60 ft on 10/15/1910
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
25 Levees in the Bethleham area topped. Major flooding begins
16 Wilson Avenue takes on water.
15.5 Sand Island recreational area in Bethlehem is flooded.
15 The islands in the Allentown area begin to flood
14 Flooding begins upstream in Allentown. Backwater begins to effect the Little Lehigh and Jordan Creeks
About This Location Collapse

Latitude: 40.615278° N, Longitude: 75.379167° W, Horizontal Datum: NAD83/WGS84

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 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 210.94 ft 226.94 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

Additional Information Collapse
During winter months, cold and ice may result in inaccurate real-time stream stage and streamflow data. Adjustments or deletions of this data can only be done after detailed analysis.
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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.
NWS Information
National Weather Service
Philadelphia/Mount Holly Weather Forecast Office
732 Woodlane Road
Mount Holly, NJ 08060-9615
(609) 261-6600
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Page last modified: 5-Aug-2014 6:39 PM
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