Metadata for Severn River at Annapolis (IN MLLW) (APAM2)

About This Location

Latitude: 38.983056° N, Longitude: 76.480000° W, Horizontal Datum: NAD83

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 2.6 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 -0.77 1.63 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 0.06 2.46 Older USGS topographic maps, NGVD29 benchmarks
MSL -0.72 1.68 Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

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