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Hydrograph River at a Glance Download
Two Rivers River at Hallock Stage (ft)Minnesota DNRHLLM5(plotting HGIRG) Graph Created (10:32AM Mar 4, 2015)Flood Stage is 802 ft
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Datum: Not Available
NOTE: Gauge reading may be affected by ice.

NOTE: Forecasts for the Two Rivers River at Hallock are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - at Lake Bronson Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 810
Moderate Flood Stage: 806
Flood Stage: 802
Action Stage: 797
Low Stage (in feet): 0

Historic Crests
(1) 810.70 ft on 04/21/1997
(2) 810.26 ft on 05/30/2010
(3) 809.50 ft on 04/23/1996
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(P): Preliminary values subject to further review.

Recent Crests
(1) 808.47 ft on 04/11/2011
(2) 810.26 ft on 05/30/2010
(3) 808.40 ft on 03/28/2009
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to

Zoom Level:16
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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.
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If you notice any errors in the below information, please contact our Webmaster
814 Top of Dike, Reach 2, south end of Cemetery, 6th St. S.
813 Top of Dike, Reach 3, north end of cemetery by 4th St. S.
812 Top of Dike, Reach 4, north of TH. 175.100 yr flood elevation at TH. 175.
810 Major Flood Stage. Water over road going into Harold Kemps.
809 City crew on shifts for manning of pumps and checking lift stations.Line sandbagging starts.
808 Dike patrols are on 24 hours.Storm sewer valve at Reach 3 (north cemetery) portable pumps are set up.
807 Storm sewer valves at 175 bridge, Yongrens, 4th Street South and the Cemetery are closed and portable pumps are set up.
806 Storm sewer valve at TH. 175 Bridge closed. Lift Pump inspected.
805 Moderate Flood Stage. Storm sewers start backing up.
804.5 Backup at Reach 2 Dike, Cemetery road at 6th St. S. - Shut Storm Valve.
802 Flood Warning Stage...Minor.Culverts with flappers checked and the dike walked.Bankfull Stage.
800 Spillway begins to flow.
798 North dike(Reach 4) gates are closed norht of TH. 175.
797 Forecast Service Stage.
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Latitude: 48.775556° N, Longitude: 96.937500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 802 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 0 ft 802 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:

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MN DNR Gage Site for Hallock
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NWS Information
National Weather Service
Eastern North Dakota/Grand Forks Weather Forecast Office
4797 Technology Circle
Grand Forks, ND 58203
(701) 772-0720
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Page last modified: 12-Feb-2015 9:35 PM
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