Rivermatics

USGS Streamgage 09087500

Elk Creek at New Castle, CO

Elk Creek at New Castle, CO is USGS streamgage 09087500 in Colorado, monitoring river discharge in hydrologic subbasin 14010005. It drains a watershed of about 180 square miles. Discharge records at this site go back to 1922. Typical flow runs near 19 cfs in July and 38.9 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
Colorado
Drainage area
180 sq mi
Gauge elevation
5,562 ft
Subbasin (HUC-8)
14010005
Coordinates
39.5738, -107.53993
USGS site number
09087500
Records begin
1922-04-01 (104 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Elk Creek at New Castle, 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
1.2 1.3 1.4
1.2 1.3 1.5
1.2 1.3 1.5
1.4 1.8 7.8
1.2 1.7 12.1
1.4 2.9 25
1.4 4.2 37.2
1.3 3.2 18.4
1.3 2.3 13.2
1.2 1.9 7.8
1.2 1.8 5
1.1 1.7 3.9
1.1 1.7 3.4
1 1.6 3.2

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 104 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 10.5 20.3 29
February 10.4 19.5 34.2
March 8.6 21.2 31.7
April 18.4 38.9 88.7
May 147.4 392.3 822.3
June 124.4 389.8 1,115.5
July 2.7 19 276.4
August 1.7 2.7 22.4
September 1.5 2.5 24.9
October 2.8 13.9 38.9
November 9.6 23.7 34.2
December 9.3 22.1 30.7

All values in cubic feet per second (cfs).

Common questions

When does Elk Creek at New Castle, CO normally run highest?
May, on the long-term record. The median daily flow that month is about 392.3 cfs, against 2.5 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Elk Creek at New Castle, CO?
It depends on the month. In January, half of days historically fall near 20.3 cfs, with the middle 80% of days between 10.5 and 29 cfs. The month-by-month table on this page gives the full range.
How long has Elk Creek at New Castle, CO been measured?
Discharge records at USGS site 09087500 begin in 1922, about 104 years, covering roughly 1,603 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Elk Creek at New Castle, 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 Elk Creek at New Castle, CO?
The gauge sits at 39.5738, -107.53993, in Colorado, in hydrologic subbasin 14010005, at an elevation of about 5,562 feet, draining roughly 180 square miles.
Can I use Elk Creek at New Castle, 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.

Other gauges in this subbasin