Rivermatics

USGS Streamgage 09059500

Piney River near State Bridge, CO

Piney River near State Bridge, CO is USGS streamgage 09059500 in Colorado, monitoring river discharge in hydrologic subbasin 14010001. It sits on the Piney River, alongside 1 other gauge Rivermatics tracks on the same river. It drains a watershed of about 85 square miles. Discharge records at this site go back to 1944. Typical flow runs near 76.1 cfs in July and 50.3 cfs in April, with the higher of the two arriving in July. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.

View live conditions & forecast →

Gauge details

State
Colorado
Drainage area
85 sq mi
Gauge elevation
7,287 ft
Subbasin (HUC-8)
14010001
Coordinates
39.79572, -106.57435
USGS site number
09059500
Records begin
1944-06-01 (82 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Piney River near State Bridge, CO. 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
5.1 5.4 5.7
4.9 5.2 5.6
4.7 5.2 5.6
4.9 5.8 8
5.1 6.1 9.1
5.4 7 12.6
5.8 8.1 15.8
5.7 7.9 14
5.5 7.4 12
5.1 6.8 10.4
4.9 6.4 9.4
4.6 6 8.7
4.5 5.9 8.3
4.4 5.8 8.2

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 82 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 9.9 13.1 17.7
February 9.6 12.7 16.9
March 10.4 15.1 24.5
April 21.8 50.3 111.7
May 114 241.6 466.9
June 135 315 565.7
July 31.4 76.1 222.7
August 13 25.5 55
September 7.7 15.9 33.4
October 9.1 17.6 36.2
November 11.3 17 25.7
December 10.5 14.6 20.5

All values in cubic feet per second (cfs).

Common questions

When does Piney River near State Bridge, CO normally run highest?
June, on the long-term record. The median daily flow that month is about 315 cfs, against 12.7 cfs in February, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Piney River near State Bridge, CO?
It depends on the month. In January, half of days historically fall near 13.1 cfs, with the middle 80% of days between 9.9 and 17.7 cfs. The month-by-month table on this page gives the full range.
How long has Piney River near State Bridge, CO been measured?
Discharge records at USGS site 09059500 begin in 1944, about 82 years, covering roughly 9,200 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Piney River near State Bridge, CO?
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 Piney River near State Bridge, CO?
The gauge sits at 39.79572, -106.57435, in Colorado, in hydrologic subbasin 14010001, at an elevation of about 7,287 feet, draining roughly 85 square miles.
Can I use Piney River near State Bridge, CO 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.

Upstream and downstream on the Piney River

Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Piney River in full.

Other gauges in this subbasin