Metadata for Narragansett Bay at Newport Harbor (IN MLLW) (NWPR1)

About This Location

Latitude: 41.504400° N, Longitude: 71.326100° W, Horizontal Datum: NAD83

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 -2.04 3.96 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 -1.74 4.26 Older USGS topographic maps, MSL benchmarks
Other Not Available 6.0 MLLW (Mean Lower Low Water)

Close This Window