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Hydrograph River at a Glance Download
American Fork River near American Fork Stage (ft)Flow (cfs)AFPU1(plotting HGIRG) Graph Created (9:37PM Mar 30, 2023)Flood Stage is 8.5 ft
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About this graph
Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: NGVD29
Reliability of the Forecast: Based on unobstructed flow

NOTE: Forecasts for the American Fork River near American Fork are issued routinely year-round.

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Flood Categories (in feet)
Major Flood Stage: 9
Moderate Flood Stage: 8.7
Flood Stage: 8.5
Action Stage: 8.2
Low Stage (in feet): -9999

Historic Crests
(1) 9.00 ft on 05/31/1983
(2) 7.90 ft on 06/01/1986
(3) 7.86 ft on 06/08/1986
(4) 7.55 ft on 06/08/2019
(5) 7.47 ft on 06/07/2017
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 7.55 ft on 06/08/2019
(2) 6.85 ft on 05/23/2018
(3) 7.47 ft on 06/07/2017
(4) 7.23 ft on 06/07/2016
(5) 6.81 ft on 06/02/2015
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:16
KML Image
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
9 At 9.0 ft., major flooding will take place throughout the Cedar Hills Golf Course, any areas that the American Fork River flows through in the town of American Fork. The Utah County sewer plant will also be impacted.
8.69 At 8.7 ft., moderate flooding will impact Cedar Hills Golf Course adjacent to the mouth of American Fork Canyon. The areas in American Fork susceptible to damage include 100 N. 250 E., 400 N. and 400 E.. Both these areas are susceptible to debris jams in the underlying culverts. Additionally, depending on the amount of sediment at the debris basin near I-15, the sewer lift station may flood.
8.5 At 8.5 ft., minor flooding will occur near 100N 250E in American Fork. Flooding will occur at the Utah County Boat Harbor Road near Utah Lake and affect the sewer lift station. The area near 400 N. 400 E. may experience flooding if the river is filled with debris as double barrel culvert frequently becomes jammed overtopping the road.
About This Location Collapse

Latitude: 40.447730° N, Longitude: 111.682147° W, Horizontal Datum: NAD27

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 8.5 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 5950 5958.5 Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks

Current/Historical Observations:

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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
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2242 West North Temple
Salt Lake City, UT 84116
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Page last modified: 2-Nov-2020 7:28 PM
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