Rivermatics

USGS Streamgage 10170490

Com Flw Jordan River & Surplus Canal @ Slc, UT

Com Flw Jordan River & Surplus Canal @ Slc, UT is USGS streamgage 10170490 in Utah, monitoring river discharge in hydrologic subbasin 16020204. It drains a watershed of about 3,438 square miles. Discharge records at this site go back to 1942. Typical flow runs near 349.8 cfs in July and 413.7 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.

View live conditions & forecast →

Gauge details

State
Utah
Drainage area
3,438 sq mi
Subbasin (HUC-8)
16020204
Coordinates
40.72689, -111.9266
USGS site number
10170490
Records begin
1942-12-01 (84 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Com Flw Jordan River & Surplus Canal @ Slc, UT. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
404 417 433
398 416 439
392 413 439
399 432 502
404 443 527
422 507 720
430 526 734
420 500 653
410 472 584
403 460 559
398 451 535
390 439 514
383 431 500
383 434 509

All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 83 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January 197.1 257.1 957.1
February 205.6 301.8 1,226.9
March 203.9 331.7 1,300.6
April 207.8 413.7 1,365.7
May 290.5 542 1,668.1
June 312.6 553.1 1,763
July 242.4 349.8 952.5
August 243.9 344.4 577.1
September 261.1 368.7 582.6
October 236.7 322.3 656.7
November 208.8 266.6 915.2
December 205.6 257.4 867.1

All values in cubic feet per second (cfs).

Common questions

When does Com Flw Jordan River & Surplus Canal @ Slc, UT normally run highest?
June, on the long-term record. The median daily flow that month is about 553.1 cfs, against 257.1 cfs in January, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Com Flw Jordan River & Surplus Canal @ Slc, UT?
It depends on the month. In January, half of days historically fall near 257.1 cfs, with the middle 80% of days between 197.1 and 957.1 cfs. The month-by-month table on this page gives the full range.
How long has Com Flw Jordan River & Surplus Canal @ Slc, UT been measured?
Discharge records at USGS site 10170490 begin in 1942, about 84 years, covering roughly 9,130 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Com Flw Jordan River & Surplus Canal @ Slc, UT?
Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
Where is Com Flw Jordan River & Surplus Canal @ Slc, UT?
The gauge sits at 40.72689, -111.9266, in Utah, in hydrologic subbasin 16020204, draining roughly 3,438 square miles.
Can I use Com Flw Jordan River & Surplus Canal @ Slc, UT data for flood or safety decisions?
No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.

Other gauges in this subbasin