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Colorado Basin River Forecast Center

Hydrograph

River at a Glance

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Probability Information Chance of Exceeding Levels During Entire Period Weekly Chance of Exceeding Levels Short-term Probabilistic Guidance (Experimental)

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Printable Image About this graph Tabular Data (UTC) Tabular Data (MDT) Datum: NGVD29 Metadata

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 Legend FEMA Layer Gauge Location 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

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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

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) Elevation (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: U.S. Geological Survey (USGS) Data and Site Info for American Fork

Resources

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