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🛰 Reservoir Levels

Storage estimates from satellite imagery · Updated twice weekly

Last updated: 2026-09-22

How do we estimate reservoir levels? ›

System Total 56% full ~36,741 / 65,637 AF

Current Estimates

Fossil Creek Res

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

Likely between 5,049–9,576 AF

📡 Image date: 2026-09-04  ·  208 acres water visible

vs. 2026-09-04 image: ⇨ similar to 7,754 AF

📋 Last official reading: 722 AF — 1955-11

Park Creek Res

Rough estimate
~13% ~1,359 / 10,393 AF

Likely between 762–4,108 AF

📡 Image date: 2026-09-04  ·  83 acres water visible

vs. 2026-09-04 image: ⇨ similar to 1,359 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: 2026-09-04  ·  0 acres water visible

vs. 2026-09-04 image: ⇨ similar to 6,774 AF

📋 Last official reading: 405 AF — 1956-08

NP Res 5

Rough estimate
~70% ~4,678 / 6,707 AF

Likely between 3,831–5,524 AF

📡 Image date: 2026-09-04  ·  468 acres water visible

vs. 2026-09-04 image: ⇨ similar to 4,678 AF

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

NP Res 16 Halligan

Approximate
~64% ~4,132 / 6,440 AF

Likely between 2,478–5,258 AF

📡 Image date: 2026-09-04  ·  50 acres water visible

vs. 2026-09-04 image: ⇨ similar to 4,132 AF

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

NP Res 15

Approximate
~65% ~3,609 / 5,579 AF

Likely between 1,399–4,555 AF

📡 Image date: 2026-09-04  ·  26 acres water visible

vs. 2026-09-04 image: ⇨ similar to 3,609 AF

📋 Last official reading: 662 AF — 1956-01

NP Res 2

Rough estimate
~66% ~2,539 / 3,854 AF

📡 Image date: 2026-09-04  ·  1 acres water visible

vs. 2026-09-04 image: ⇨ similar to 2,539 AF

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

NP Res 3

Rough estimate
~72% ~2,320 / 3,227 AF

Likely between 2,229–2,410 AF

📡 Image date: 2026-09-04  ·  74 acres water visible

vs. 2026-09-04 image: ⇨ similar to 2,320 AF

📋 Last official reading: 506 AF — 1956-08

NP Res 1 Miners Lake

Rough estimate
~13% ~263 / 1,985 AF

Likely between 241–301 AF

📡 Image date: 2026-09-04  ·  47 acres water visible

vs. 2026-09-04 image: ⇨ similar to 263 AF

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

Indian Creek Res

Approximate
~66% ~1,261 / 1,909 AF

Likely between 827–1,723 AF

📡 Image date: 2026-09-04  ·  51 acres water visible

vs. 2026-09-04 image: ⇨ similar to 1,261 AF

📋 Last official reading: 361 AF — 1955-11

NP Res 4

Rough estimate
~69% ~1,074 / 1,563 AF

Likely between 1,045–1,196 AF

📡 Image date: 2026-09-04  ·  100 acres water visible

vs. 2026-09-04 image: ⇨ similar to 1,074 AF

📋 Last official reading: 115 AF — 1955-11

Smith Lake Boxelder Res 3

Rough estimate
~14% ~180 / 1,309 AF

Likely between 42–193 AF

📡 Image date: 2026-09-04  ·  98 acres water visible

vs. 2026-09-04 image: ⇨ similar to 180 AF

📋 Last official reading: 168 AF — 1981-10

NP Res 12 Upper Clark

Approximate
~83% ~800 / 963 AF

Likely between 396–926 AF

📡 Image date: 2026-09-04  ·  81 acres water visible

vs. 2026-09-04 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 ›