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Hydrograph River at a Glance Download
Backlick Run at Van Dorn Street in Alexandria Stage (ft)Observed: 0.06 ft at 12:50PM Oct 09, 2019Highest Observation: 0.09 ft at 11:25AM Oct 10, 2019Observed: 0 ft at 3:40PM Oct 10, 2019Observed: 0 ft at 4:40PM Oct 10, 2019Observed: 0.02 ft at 5:40PM Oct 10, 2019Observed: 0 ft at 10:35AM Oct 11, 2019Observed: 0 ft at 12:35PM Oct 11, 2019Observed: 0 ft at 5:30PM Oct 11, 2019Observed: 0 ft at 11:30AM Oct 12, 2019Observed: 0 ft at 12:30PM Oct 12, 2019BLRV2(plotting HGIRR) Graph Created (9:24AM Oct 14, 2019)ObservedLatest observed value: 0 ft at 12:30 PM EDT 12-Oct-2019. Flood Stage is 6 ft
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Tabular Data (UTC)
Tabular Data (EDT)
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Datum: Not Available
NOTE: Forecasts are not available for the Backlick Run at Van Dorn Street in Alexandria. Only observed stages are available for this point.
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Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 6
Action Stage: 4
Low Stage (in feet): -9999

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.

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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.
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Latitude: 38.803333° N, Longitude: 77.133889° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 6 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(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 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  
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Page last modified: 1-Mar-2019 12:35 AM
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