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🛰 Reservoir Levels

Storage estimates from satellite imagery · Updated twice weekly

Last updated: 2026-05-12

How do we estimate reservoir levels? ›

System Total 55% full ~36,191 / 65,637 AF

Current Estimates

Fossil Creek Res

Approximate
~66% ~7,754 / 11,740 AF

Likely between 4,994–9,700 AF

📡 Image date: 2026-05-02  ·  232 acres water visible

vs. 2026-05-02 image: ⇨ similar to 7,754 AF

📋 Last official reading: 722 AF — 1955-11

Park Creek Res

Rough estimate
~27% ~2,808 / 10,393 AF

Likely between 2,031–4,582 AF

📡 Image date: 2026-05-10  ·  104 acres water visible

vs. 2026-05-10 image: ⇨ similar to 2,808 AF

📋 Last official reading: 7,275 AF — 1976-03

NP Res 6

Approximate
~68% ~6,774 / 9,968 AF

Likely between 4,651–8,155 AF

📡 Image date: 2026-05-02  ·  0 acres water visible

vs. 2026-05-02 image: ⇨ similar to 6,774 AF

📋 Last official reading: 405 AF — 1956-08

NP Res 5

Rough estimate
~69% ~4,620 / 6,707 AF

Likely between 1,734–4,941 AF

📡 Image date: 2026-05-02  ·  684 acres water visible

vs. 2026-05-02 image: ⇨ similar to 4,620 AF

📋 Last official reading: 5,334 AF — 1958-08

NP Res 16 Halligan

Rough estimate
~74% ~4,754 / 6,440 AF

Likely between 3,687–5,892 AF

📡 Image date: 2026-05-10  ·  161 acres water visible

vs. 2026-05-10 image: ⇨ similar to 4,754 AF

📋 Last official reading: 1,582 AF — 1956-01

NP Res 15

Rough estimate
~6% ~342 / 5,579 AF

📡 Image date: 2026-05-10  ·  93 acres water visible

vs. 2026-05-10 image: ⇨ similar to 342 AF

📋 Last official reading: 662 AF — 1956-01

NP Res 2

Rough estimate
~75% ~2,901 / 3,854 AF

Likely between 2,409–3,074 AF

📡 Image date: 2026-05-02  ·  255 acres water visible

vs. 2026-05-02 image: ⇨ similar to 2,901 AF

📋 Last official reading: 1,779 AF — 1956-05

NP Res 3

Rough estimate
~66% ~2,125 / 3,227 AF

Likely between 1,198–2,346 AF

📡 Image date: 2026-05-02  ·  368 acres water visible

vs. 2026-05-02 image: ⇨ similar to 2,125 AF

📋 Last official reading: 506 AF — 1956-08

NP Res 1 Miners Lake

Rough estimate
~19% ~385 / 1,985 AF

📡 Image date: 2026-05-10  ·  22 acres water visible

vs. 2026-05-10 image: ⇨ similar to 385 AF

📋 Last official reading: 1,153 AF — 1976-12

Indian Creek Res

Approximate
~83% ~1,585 / 1,909 AF

Likely between 1,257–1,799 AF

📡 Image date: 2026-05-02  ·  124 acres water visible

vs. 2026-05-02 image: ⇨ similar to 1,585 AF

📋 Last official reading: 361 AF — 1955-11

NP Res 4

Rough estimate
~74% ~1,151 / 1,563 AF

Likely between 1,004–1,367 AF

📡 Image date: 2026-05-02  ·  163 acres water visible

vs. 2026-05-02 image: ⇨ similar to 1,151 AF

📋 Last official reading: 115 AF — 1955-11

Smith Lake Boxelder Res 3

Rough estimate
~15% ~192 / 1,309 AF

Likely between 174–248 AF

📡 Image date: 2026-05-02  ·  336 acres water visible

vs. 2026-05-02 image: ⇨ similar to 192 AF

📋 Last official reading: 168 AF — 1981-10

NP Res 12 Upper Clark

Approximate
~83% ~800 / 963 AF

Likely between 634–907 AF

📡 Image date: 2026-05-02  ·  82 acres water visible

vs. 2026-05-02 image: ⇨ similar to 800 AF

📋 Last official reading: 578 AF — 1976-08

These are estimates, not official measurements. Satellite imagery gives us a good general picture of reservoir levels between official readings, but real-world conditions (clouds, snow on the ground, reservoir shape) can affect accuracy. For official water records, contact NPIC at (970) 568-3612 or the Colorado Division Engineer, District 3 (Greeley, 970-352-8712).

Learn how we make these estimates ›