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Hydrograph River at a Glance Download
Horsehead Creek at Oelrichs Stage (ft)Flow (kcfs)Observed: 2.08 ft at 3:15AM Sep 19, 2020Observed: 2.08 ft at 3:30AM Sep 19, 2020Observed: 2.08 ft at 3:45AM Sep 19, 2020Observed: 2.08 ft at 4:00AM Sep 19, 2020Highest Observation: 2.09 ft at 4:15AM Sep 19, 2020Observed: 2.08 ft at 4:30AM Sep 19, 2020Observed: 2.08 ft at 4:45AM Sep 19, 2020Observed: 2.08 ft at 5:00AM Sep 19, 2020Highest Observation: 2.09 ft at 5:15AM Sep 19, 2020Highest Observation: 2.09 ft at 5:30AM Sep 19, 2020Highest Observation: 2.09 ft at 5:45AM Sep 19, 2020Highest Observation: 2.09 ft at 6:00AM Sep 19, 2020Highest Observation: 2.09 ft at 6:15AM Sep 19, 2020Highest Observation: 2.09 ft at 6:30AM Sep 19, 2020Highest Observation: 2.09 ft at 6:45AM Sep 19, 2020Highest Observation: 2.09 ft at 7:00AM Sep 19, 2020Highest Observation: 2.09 ft at 7:15AM Sep 19, 2020Highest Observation: 2.09 ft at 7:30AM Sep 19, 2020Highest Observation: 2.09 ft at 7:45AM Sep 19, 2020Highest Observation: 2.09 ft at 8:00AM Sep 19, 2020Highest Observation: 2.09 ft at 8:15AM Sep 19, 2020Highest Observation: 2.09 ft at 8:30AM Sep 19, 2020Highest Observation: 2.09 ft at 8:45AM Sep 19, 2020Highest Observation: 2.09 ft at 9:00AM Sep 19, 2020Highest Observation: 2.09 ft at 9:15AM Sep 19, 2020Highest Observation: 2.09 ft at 9:30AM Sep 19, 2020Highest Observation: 2.09 ft at 9:45AM Sep 19, 2020Highest Observation: 2.09 ft at 10:00AM Sep 19, 2020Highest Observation: 2.09 ft at 10:15AM Sep 19, 2020Highest Observation: 2.09 ft at 10:30AM Sep 19, 2020Highest Observation: 2.09 ft at 10:45AM Sep 19, 2020Highest Observation: 2.09 ft at 11:00AM Sep 19, 2020Highest Observation: 2.09 ft at 11:15AM Sep 19, 2020Highest Observation: 2.09 ft at 11:30AM Sep 19, 2020Highest Observation: 2.09 ft at 11:45AM Sep 19, 2020Highest Observation: 2.09 ft at 12:00PM Sep 19, 2020Highest Observation: 2.09 ft at 12:15PM Sep 19, 2020Highest Observation: 2.09 ft at 12:30PM Sep 19, 2020Highest Observation: 2.09 ft at 12:45PM Sep 19, 2020Highest Observation: 2.09 ft at 1:00PM Sep 19, 2020Highest Observation: 2.09 ft at 1:15PM Sep 19, 2020Highest Observation: 2.09 ft at 1:30PM Sep 19, 2020Highest Observation: 2.09 ft at 1:45PM Sep 19, 2020Highest Observation: 2.09 ft at 2:00PM Sep 19, 2020Highest Observation: 2.09 ft at 2:15PM Sep 19, 2020Observed: 2.08 ft at 2:30PM Sep 19, 2020Observed: 2.08 ft at 2:45PM Sep 19, 2020Observed: 2.08 ft at 3:00PM Sep 19, 2020Observed: 2.08 ft at 3:15PM Sep 19, 2020Observed: 2.08 ft at 3:30PM Sep 19, 2020Observed: 2.08 ft at 3:45PM Sep 19, 2020Observed: 2.08 ft at 4:00PM Sep 19, 2020Observed: 2.08 ft at 4:15PM Sep 19, 2020Observed: 2.08 ft at 4:30PM Sep 19, 2020Observed: 2.08 ft at 4:45PM Sep 19, 2020Observed: 2.07 ft at 5:00PM Sep 19, 2020Observed: 2.08 ft at 5:15PM Sep 19, 2020Observed: 2.08 ft at 5:30PM Sep 19, 2020Observed: 2.07 ft at 5:45PM Sep 19, 2020Observed: 2.08 ft at 6:00PM Sep 19, 2020Observed: 2.07 ft at 6:15PM Sep 19, 2020Observed: 2.07 ft at 6:30PM Sep 19, 2020Observed: 2.07 ft at 6:45PM Sep 19, 2020Observed: 2.07 ft at 7:00PM Sep 19, 2020Observed: 2.08 ft at 7:15PM Sep 19, 2020Observed: 2.07 ft at 7:30PM Sep 19, 2020Observed: 2.07 ft at 7:45PM Sep 19, 2020Observed: 2.08 ft at 8:00PM Sep 19, 2020Observed: 2.08 ft at 8:15PM Sep 19, 2020Observed: 2.08 ft at 8:30PM Sep 19, 2020Observed: 2.08 ft at 8:45PM Sep 19, 2020Observed: 2.07 ft at 9:00PM Sep 19, 2020Observed: 2.08 ft at 9:15PM Sep 19, 2020Observed: 2.07 ft at 9:30PM Sep 19, 2020Observed: 2.08 ft at 9:45PM Sep 19, 2020Observed: 2.07 ft at 10:00PM Sep 19, 2020Observed: 2.08 ft at 10:15PM Sep 19, 2020Observed: 2.07 ft at 10:30PM Sep 19, 2020Observed: 2.08 ft at 10:45PM Sep 19, 2020Observed: 2.07 ft at 11:00PM Sep 19, 2020Observed: 2.07 ft at 11:15PM Sep 19, 2020Observed: 2.07 ft at 11:30PM Sep 19, 2020Observed: 2.08 ft at 11:45PM Sep 19, 2020Observed: 2.08 ft at 12:00AM Sep 20, 2020Observed: 2.07 ft at 12:15AM Sep 20, 2020Observed: 2.07 ft at 12:30AM Sep 20, 2020Observed: 2.07 ft at 12:45AM Sep 20, 2020Observed: 2.07 ft at 1:00AM Sep 20, 2020Observed: 2.07 ft at 1:15AM Sep 20, 2020Observed: 2.07 ft at 1:30AM Sep 20, 2020Observed: 2.07 ft at 1:45AM Sep 20, 2020Observed: 2.07 ft at 2:00AM Sep 20, 2020Observed: 2.07 ft at 2:15AM Sep 20, 2020Observed: 2.07 ft at 2:30AM Sep 20, 2020Observed: 2.07 ft at 2:45AM Sep 20, 2020Observed: 2.07 ft at 3:00AM Sep 20, 2020Observed: 2.07 ft at 3:15AM Sep 20, 2020Observed: 2.07 ft at 3:30AM Sep 20, 2020Observed: 2.07 ft at 3:45AM Sep 20, 2020Observed: 2.07 ft at 4:00AM Sep 20, 2020Observed: 2.07 ft at 4:15AM Sep 20, 2020Observed: 2.08 ft at 4:30AM Sep 20, 2020Observed: 2.07 ft at 4:45AM Sep 20, 2020Observed: 2.07 ft at 5:00AM Sep 20, 2020Observed: 2.07 ft at 5:15AM Sep 20, 2020Observed: 2.07 ft at 5:30AM Sep 20, 2020Observed: 2.07 ft at 5:45AM Sep 20, 2020Observed: 2.08 ft at 6:00AM Sep 20, 2020Observed: 2.07 ft at 6:15AM Sep 20, 2020Observed: 2.07 ft at 6:30AM Sep 20, 2020Observed: 2.07 ft at 6:45AM Sep 20, 2020Observed: 2.07 ft at 7:00AM Sep 20, 2020Observed: 2.07 ft at 7:15AM Sep 20, 2020Observed: 2.07 ft at 7:30AM Sep 20, 2020Observed: 2.07 ft at 7:45AM Sep 20, 2020Observed: 2.07 ft at 8:00AM Sep 20, 2020Observed: 2.07 ft at 8:15AM Sep 20, 2020Observed: 2.08 ft at 8:30AM Sep 20, 2020Observed: 2.07 ft at 8:45AM Sep 20, 2020Observed: 2.07 ft at 9:00AM Sep 20, 2020Observed: 2.07 ft at 9:15AM Sep 20, 2020Observed: 2.07 ft at 9:30AM Sep 20, 2020Observed: 2.07 ft at 9:45AM Sep 20, 2020Observed: 2.07 ft at 10:00AM Sep 20, 2020Observed: 2.07 ft at 10:15AM Sep 20, 2020Observed: 2.07 ft at 10:30AM Sep 20, 2020Observed: 2.07 ft at 10:45AM Sep 20, 2020Observed: 2.07 ft at 11:00AM Sep 20, 2020Observed: 2.07 ft at 11:15AM Sep 20, 2020Observed: 2.07 ft at 11:30AM Sep 20, 2020Observed: 2.07 ft at 11:45AM Sep 20, 2020Observed: 2.07 ft at 12:00PM Sep 20, 2020Observed: 2.07 ft at 12:15PM Sep 20, 2020Observed: 2.07 ft at 12:30PM Sep 20, 2020Observed: 2.07 ft at 12:45PM Sep 20, 2020Observed: 2.06 ft at 1:00PM Sep 20, 2020Observed: 2.06 ft at 1:15PM Sep 20, 2020Observed: 2.06 ft at 1:30PM Sep 20, 2020Observed: 2.06 ft at 1:45PM Sep 20, 2020Observed: 2.06 ft at 2:00PM Sep 20, 2020Observed: 2.07 ft at 2:15PM Sep 20, 2020Observed: 2.06 ft at 2:30PM Sep 20, 2020Observed: 2.05 ft at 2:45PM Sep 20, 2020Observed: 2.06 ft at 3:00PM Sep 20, 2020Observed: 2.06 ft at 3:15PM Sep 20, 2020Observed: 2.06 ft at 3:30PM Sep 20, 2020Observed: 2.06 ft at 3:45PM Sep 20, 2020Observed: 2.05 ft at 4:00PM Sep 20, 2020Observed: 2.05 ft at 4:15PM Sep 20, 2020Observed: 2.05 ft at 4:30PM Sep 20, 2020Observed: 2.05 ft at 4:45PM Sep 20, 2020Observed: 2.05 ft at 5:00PM Sep 20, 2020Observed: 2.05 ft at 5:15PM Sep 20, 2020Observed: 2.05 ft at 5:30PM Sep 20, 2020Observed: 2.05 ft at 5:45PM Sep 20, 2020Observed: 2.05 ft at 6:00PM Sep 20, 2020Observed: 2.05 ft at 6:15PM Sep 20, 2020Observed: 2.05 ft at 6:30PM Sep 20, 2020Observed: 2.05 ft at 6:45PM Sep 20, 2020Observed: 2.05 ft at 7:00PM Sep 20, 2020Observed: 2.05 ft at 7:15PM Sep 20, 2020Observed: 2.05 ft at 7:30PM Sep 20, 2020Observed: 2.05 ft at 7:45PM Sep 20, 2020Observed: 2.05 ft at 8:00PM Sep 20, 2020Observed: 2.05 ft at 8:15PM Sep 20, 2020Observed: 2.05 ft at 8:30PM Sep 20, 2020Observed: 2.05 ft at 8:45PM Sep 20, 2020Observed: 2.05 ft at 9:00PM Sep 20, 2020Observed: 2.05 ft at 9:15PM Sep 20, 2020Observed: 2.05 ft at 9:30PM Sep 20, 2020Observed: 2.05 ft at 9:45PM Sep 20, 2020Observed: 2.05 ft at 10:00PM Sep 20, 2020Observed: 2.05 ft at 10:15PM Sep 20, 2020Observed: 2.06 ft at 10:30PM Sep 20, 2020Observed: 2.05 ft at 10:45PM Sep 20, 2020Observed: 2.06 ft at 11:00PM Sep 20, 2020Observed: 2.05 ft at 11:15PM Sep 20, 2020Observed: 2.06 ft at 11:30PM Sep 20, 2020Observed: 2.05 ft at 11:45PM Sep 20, 2020Observed: 2.05 ft at 12:00AM Sep 21, 2020Observed: 2.06 ft at 12:15AM Sep 21, 2020Observed: 2.05 ft at 12:30AM Sep 21, 2020Observed: 2.05 ft at 12:45AM Sep 21, 2020Observed: 2.06 ft at 1:00AM Sep 21, 2020Observed: 2.05 ft at 1:15AM Sep 21, 2020Observed: 2.05 ft at 1:30AM Sep 21, 2020Observed: 2.06 ft at 1:45AM Sep 21, 2020Observed: 2.05 ft at 2:00AM Sep 21, 2020Observed: 2.06 ft at 2:15AM Sep 21, 2020Observed: 2.05 ft at 2:30AM Sep 21, 2020Observed: 2.05 ft at 2:45AM Sep 21, 2020Observed: 2.05 ft at 3:00AM Sep 21, 2020Observed: 2.06 ft at 3:15AM Sep 21, 2020Observed: 2.05 ft at 3:30AM Sep 21, 2020Observed: 2.06 ft at 3:45AM Sep 21, 2020Observed: 2.06 ft at 4:00AM Sep 21, 2020Observed: 2.06 ft at 4:15AM Sep 21, 2020Observed: 2.06 ft at 4:30AM Sep 21, 2020Observed: 2.05 ft at 4:45AM Sep 21, 2020Observed: 2.06 ft at 5:00AM Sep 21, 2020Observed: 2.06 ft at 5:15AM Sep 21, 2020Observed: 2.06 ft at 5:30AM Sep 21, 2020Observed: 2.06 ft at 5:45AM Sep 21, 2020Observed: 2.06 ft at 6:00AM Sep 21, 2020Observed: 2.06 ft at 6:15AM Sep 21, 2020Observed: 2.06 ft at 6:30AM Sep 21, 2020Observed: 2.06 ft at 6:45AM Sep 21, 2020Observed: 2.06 ft at 7:00AM Sep 21, 2020Observed: 2.06 ft at 7:15AM Sep 21, 2020Observed: 2.06 ft at 7:30AM Sep 21, 2020Observed: 2.06 ft at 7:45AM Sep 21, 2020Observed: 2.06 ft at 8:00AM Sep 21, 2020Observed: 2.06 ft at 8:15AM Sep 21, 2020Observed: 2.06 ft at 8:30AM Sep 21, 2020Observed: 2.07 ft at 8:45AM Sep 21, 2020Observed: 2.06 ft at 9:00AM Sep 21, 2020Observed: 2.07 ft at 9:15AM Sep 21, 2020Observed: 2.06 ft at 9:30AM Sep 21, 2020Observed: 2.07 ft at 9:45AM Sep 21, 2020Observed: 2.07 ft at 10:00AM Sep 21, 2020Observed: 2.06 ft at 10:15AM Sep 21, 2020Observed: 2.07 ft at 10:30AM Sep 21, 2020Observed: 2.06 ft at 10:45AM Sep 21, 2020Observed: 2.06 ft at 11:00AM Sep 21, 2020Observed: 2.06 ft at 11:15AM Sep 21, 2020Observed: 2.06 ft at 11:30AM Sep 21, 2020Observed: 2.06 ft at 11:45AM Sep 21, 2020Observed: 2.06 ft at 12:00PM Sep 21, 2020Observed: 2.06 ft at 12:15PM Sep 21, 2020Observed: 2.06 ft at 12:30PM Sep 21, 2020Observed: 2.06 ft at 12:45PM Sep 21, 2020Observed: 2.06 ft at 1:00PM Sep 21, 2020Observed: 2.06 ft at 1:15PM Sep 21, 2020Observed: 2.06 ft at 1:30PM Sep 21, 2020Observed: 2.06 ft at 1:45PM Sep 21, 2020Observed: 2.06 ft at 2:00PM Sep 21, 2020Observed: 2.06 ft at 2:15PM Sep 21, 2020Observed: 2.05 ft at 2:30PM Sep 21, 2020Observed: 2.05 ft at 2:45PM Sep 21, 2020Observed: 2.05 ft at 3:00PM Sep 21, 2020Observed: 2.05 ft at 3:15PM Sep 21, 2020Observed: 2.05 ft at 3:30PM Sep 21, 2020Observed: 2.05 ft at 3:45PM Sep 21, 2020Observed: 2.05 ft at 4:00PM Sep 21, 2020Observed: 2.05 ft at 4:15PM Sep 21, 2020Observed: 2.05 ft at 4:30PM Sep 21, 2020Observed: 2.05 ft at 4:45PM Sep 21, 2020Observed: 2.05 ft at 5:00PM Sep 21, 2020Observed: 2.05 ft at 5:15PM Sep 21, 2020Observed: 2.05 ft at 5:30PM Sep 21, 2020Observed: 2.05 ft at 5:45PM Sep 21, 2020Observed: 2.05 ft at 6:00PM Sep 21, 2020Observed: 2.05 ft at 6:15PM Sep 21, 2020Observed: 2.05 ft at 6:30PM Sep 21, 2020Observed: 2.05 ft at 6:45PM Sep 21, 2020Observed: 2.05 ft at 7:00PM Sep 21, 2020Observed: 2.05 ft at 7:15PM Sep 21, 2020Observed: 2.04 ft at 7:30PM Sep 21, 2020Observed: 2.05 ft at 7:45PM Sep 21, 2020Observed: 2.04 ft at 8:00PM Sep 21, 2020Observed: 2.05 ft at 8:15PM Sep 21, 2020Observed: 2.05 ft at 8:30PM Sep 21, 2020Observed: 2.05 ft at 8:45PM Sep 21, 2020Observed: 2.04 ft at 9:00PM Sep 21, 2020Observed: 2.05 ft at 9:15PM Sep 21, 2020Observed: 2.05 ft at 9:30PM Sep 21, 2020Observed: 2.05 ft at 9:45PM Sep 21, 2020Observed: 2.05 ft at 10:00PM Sep 21, 2020Observed: 2.05 ft at 10:15PM Sep 21, 2020Observed: 2.05 ft at 10:30PM Sep 21, 2020Observed: 2.05 ft at 10:45PM Sep 21, 2020Observed: 2.05 ft at 11:00PM Sep 21, 2020Observed: 2.05 ft at 11:15PM Sep 21, 2020Observed: 2.05 ft at 11:30PM Sep 21, 2020Observed: 2.05 ft at 11:45PM Sep 21, 2020Observed: 2.06 ft at 12:00AM Sep 22, 2020Observed: 2.05 ft at 12:15AM Sep 22, 2020Observed: 2.05 ft at 12:30AM Sep 22, 2020Observed: 2.05 ft at 12:45AM Sep 22, 2020Observed: 2.05 ft at 1:00AM Sep 22, 2020Observed: 2.05 ft at 1:15AM Sep 22, 2020Observed: 2.05 ft at 1:30AM Sep 22, 2020Observed: 2.05 ft at 1:45AM Sep 22, 2020Observed: 2.06 ft at 2:00AM Sep 22, 2020USGS--Water Resources of the United StatesHHDS2(plotting HGIRG) Graph Created (3:08AM Sep 22, 2020)ObservedLatest observed value: 2.06 ft at 2:00 AM MDT 22-Sep-2020. Flood Stage is 16 ft
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About this graph
Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts are not available for the Horsehead Creek at Oelrichs. Only observed stages are available for this point.
Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 20
Moderate Flood Stage: 18
Flood Stage: 16
Action Stage: 10
Low Stage (in feet): -9999

Historic Crests
(1) 18.57 ft on 05/11/1991
(2) 18.13 ft on 06/06/2015
(3) 17.23 ft on 06/11/1986
(4) 16.31 ft on 05/25/2010
(5) 15.06 ft on 05/29/2019
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 15.06 ft on 05/29/2019
(2) 10.01 ft on 05/30/2018
(3) 3.84 ft on 05/03/2017
(4) 4.13 ft on 05/01/2016
(5) 18.13 ft on 06/06/2015
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 www.floodsmart.gov.
Zoom Level:14
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
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
20 Major Flood Stage. Extensive flooding along the creek with inundation of structures and roads.
18 Moderate Flood Stage. Some inundation of structures and roads near the creek are possible. Water will cover northbound 385 north of Oelrichs at Horsehead Creek and will begin to approach southbound lanes of Highway 385.
17 Water may begin to approach the northbound lane of Highway 385, north of Oelrichs, about 150 feet south of Horsehead Creek. It typically takes 6 to 10 hours for the water to reach this location.
16 Minor Flood Stage; Minor flooding of agricultural land. Water may begin to fill the medians along 385 where Horsehead Creek crosses Highway 385 north of Oelrichs. It will typically take 6 to 10 hours for the water to reach this crossing.
10 Bankfull and Action Stage. Water backs up south of Hwy 18. Nuisance flooding of agricultural land.
Photos
(1) Gage site
(2) Looking upstream
(3) Looking downstream
(4) Flooding upstream - May 2010
(5) Flooding downstream - May 2010
About This Location Collapse

Latitude: 43.188056° N, Longitude: 103.226111° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 16 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 3316.3 3332.3 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  

Current/Historical Observations:
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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
Rapid City Weather Forecast Office
300 East Signal Drive
Rapid City, SD 57701-3800
(605) 341-7531
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