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🛰 Reservoir Levels

Storage estimates from satellite imagery · Updated twice weekly

Last updated: 2026-07-24

How do we estimate reservoir levels? ›

System Total 62% full ~40,560 / 65,637 AF

Current Estimates

Fossil Creek Res

Approximate
~65% ~7,595 / 11,740 AF

Likely between 5,002–9,605 AF

📡 Image date: 2026-07-01  ·  223 acres water visible

vs. 2026-07-01 image: ⇨ similar to 7,595 AF

📋 Last official reading: 722 AF — 1955-11

Park Creek Res

Rough estimate
~38% ~3,958 / 10,393 AF

Likely between 2,325–5,962 AF

📡 Image date: 2026-07-14  ·  110 acres water visible

vs. 2026-07-14 image: ⇨ similar to 3,958 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: 2026-07-01  ·  0 acres water visible

vs. 2026-07-01 image: ⇨ similar to 6,774 AF

📋 Last official reading: 405 AF — 1956-08

NP Res 5

Approximate
~67% ~4,521 / 6,707 AF

Likely between 2,920–6,044 AF

📡 Image date: 2026-06-26  ·  332 acres water visible

vs. 2026-06-26 image: ⇨ similar to 4,521 AF

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

NP Res 16 Halligan

Rough estimate
~100% ~6,428 / 6,440 AF

Likely between 2,084–6,428 AF

📡 Image date: 2026-07-14  ·  100 acres water visible

vs. 2026-07-14 image: ⇨ similar to 6,428 AF

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

NP Res 15

Rough estimate
~25% ~1,398 / 5,579 AF

Likely between 718–4,949 AF

📡 Image date: 2026-07-14  ·  165 acres water visible

vs. 2026-07-14 image: ⇨ similar to 1,398 AF

📋 Last official reading: 662 AF — 1956-01

NP Res 2

Rough estimate
~82% ~3,179 / 3,854 AF

📡 Image date: 2026-06-26  ·  0 acres water visible

vs. 2026-06-26 image: ⇨ similar to 3,179 AF

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

NP Res 3

Approximate
~68% ~2,193 / 3,227 AF

Likely between 1,670–2,630 AF

📡 Image date: 2026-06-26  ·  18 acres water visible

vs. 2026-06-26 image: ⇨ similar to 2,193 AF

📋 Last official reading: 506 AF — 1956-08

NP Res 1 Miners Lake

Rough estimate
~16% ~314 / 1,985 AF

Likely between 268–359 AF

📡 Image date: 2026-07-14  ·  5 acres water visible

vs. 2026-07-14 image: ⇨ similar to 314 AF

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

Indian Creek Res

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

Likely between 786–1,836 AF

📡 Image date: 2026-07-01  ·  118 acres water visible

vs. 2026-07-01 image: ⇨ similar to 1,585 AF

📋 Last official reading: 361 AF — 1955-11

NP Res 4

Approximate
~66% ~1,032 / 1,563 AF

Likely between 672–1,275 AF

📡 Image date: 2026-06-26  ·  42 acres water visible

vs. 2026-06-26 image: ⇨ similar to 1,032 AF

📋 Last official reading: 115 AF — 1955-11

Smith Lake Boxelder Res 3

Approximate
~65% ~847 / 1,309 AF

Likely between 558–1,071 AF

📡 Image date: 2026-06-26  ·  41 acres water visible

vs. 2026-06-26 image: ⇨ similar to 847 AF

📋 Last official reading: 168 AF — 1981-10

NP Res 12 Upper Clark

Approximate
~76% ~736 / 963 AF

Likely between 340–902 AF

📡 Image date: 2026-07-01  ·  82 acres water visible

vs. 2026-07-01 image: ⇨ similar to 736 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 ›