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Hydrograph River at a Glance Download
Little Susitna R at Hatcher Pass Rd Bridge Stage (ft)Observed: 6 ft at 6:28AM Nov 28, 2016Observed: 5.86 ft at 7:20AM Nov 29, 2016Highest Observation: 6.35 ft at 7:00AM Nov 30, 2016Observed: 6.3 ft at 5:20AM Dec 01, 2016LSOA2(plotting HGIRZ) Graph Created (9:01AM Dec 7, 2016)ObservedLatest observed value: 6.3 ft at 5:20 AM AKST 1-Dec-2016. Flood Stage is 10 ft
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Tabular Data (UTC)
Tabular Data (AKST)
XML Data
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Datum: Not Available
NOTE: Gauge readings not available during the winter months.

NOTE: Forecasts for the Little Susitna R at Hatcher Pass Rd Bridge are issued routinely during the warm season, and as needed at other times of the year.

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Downstream Gauge Downstream Gauge - below Hatcher Pass Bridge
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 10.9
Flood Stage: 10
Action Stage: 9
Low Stage (in feet): 0

Historic Crests
(1) 12.45 ft on 09/21/2012
(2) 10.97 ft on 08/19/2006
(3) 9.67 ft on 11/10/2005
(4) 8.75 ft on 08/06/2007
(5) 8.48 ft on 06/10/2013
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(P): Preliminary values subject to further review.

Recent Crests
(1) 8.48 ft on 06/10/2013
(2) 12.45 ft on 09/21/2012
(3) 8.33 ft on 08/09/2011
(4) 7.76 ft on 07/21/2010
(5) 7.86 ft on 05/14/2009
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(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:10
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Gauge LocationGauge Map Marker
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
8 Class VI- whitewater
7.5 High water level -- Class V- whitewater above Hatcher bridge
7 Medium water level -- Class V- whitewater above Hatcher bridge
6.3 Low water level -- Class V- whitewater above Hatcher bridge
(1) Downstream
(2) Upstream
About This Location Collapse

Latitude: 61.709722° N, Longitude: 149.231944° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 10 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
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Long-term Hydrograph
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Hydrologic Resources Additional Resources
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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
Anchorage Weather Forecast Office
6930 Sand Lake Road
Anchorage, AK 99502
(907) 266-5102
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Page last modified: 13-Aug-2015 1:53 AM
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