States

Flatiron Reservoir

Colorado · Reclamation gauge
5,4645,4665,4685,4705,472
Grey bar: 12-month range 5,464.6–5,471.8 ft.
Water level · NGVD29
5,466.17FT
Storage 452 acre-feet
The source publishes no % full figure.
7 days −1.57 ft30 days −5.14 ft
Reading for Oct 24, 2026 · page refreshed Oct 25, 20:24 UTC
Source: U.S. Bureau of Reclamation (RISE)
Worth going today?This Afternoon
Looks good
Light wind, dry
Wind5 mph
Rain16%
Temp50°F
Level5,466.2 ft
This AfternoonSlight Chance Rain Showers · 50°F
NE 5 mph · rain 16%
TonightShowers And Thunderstorms Likely · 40°F
NNE 2 to 7 mph · rain 65%
NWS forecast for the gauge location. Good = wind ≤ 10 mph and rain ≤ 30%; storms are flagged. Not safety advice – check local conditions, closures and warnings.

Level history

5,4645,4665,4685,4705,472ftSep 24Oct 2Oct 9Oct 16Oct 24
5,4645,4665,4685,4705,472ftSep 24Oct 9Oct 24
5,4645,4665,4685,4705,472ftDec 2025Mar 2026May 2026Aug 2026Oct 2026
5,4645,4665,4685,4705,472ftDec 2025May 2026Oct 2026

Field notes

Flatiron Reservoir's latest daily level (Oct 24, 2026) is 5,466.17 (NGVD29) ft.

Reclamation reports storage of 452 acre-feet for the same day.

Over the past 7 days the lake has been falling (−1.57 ft), and it is −5.14 ft over 30 days.

Readings come from the Bureau of Reclamation's daily reservoir data for Flatiron Reservoir and Dam.

Lake facts

Storage (latest)452 acre-feet
Gauge / stationFlatiron Reservoir and Dam
Elevation datumft (NGVD29)
Gauge location40.3650, -105.2361

Nearby lakes

Pinewood Reservoir3 mi W6,558.30 ft−3.27 ftCarter Lake Reservoir3 mi SE5,706.88 ft−2.43 ftLake Estes13 mi W7,469.91 ft−1.38 ftMarys Lake16 mi W8,028.91 ft+2.54 ftHorsetooth Reservoir17 mi N5,410.28 ft−1.73 ft

Common questions

Is Flatiron Reservoir rising or falling?

Over the last 7 days it changed −1.57 ft and over 30 days −5.14 ft.

How full is Flatiron Reservoir?

Reclamation publishes the water surface elevation for this gauge but not a percent-full figure, so we don't show one rather than estimate it.

How often is this page updated?

The page is rebuilt automatically every day from Reclamation's published data. Values can be revised later by the source agency.

Where does the data come from?

The U.S. Bureau of Reclamation's RISE data portal (data.usbr.gov). Forecasts come from the National Weather Service.

Daily values published by the Bureau of Reclamation; provisional and subject to revision. Reclamation data are provisional and subject to revision unless otherwise noted. This page is not affiliated with or endorsed by the Bureau of Reclamation. See data sources.