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Coralville Lake Water Level Today

Also known as Coralville Reservoir

Daily level, distance to full pool and history for Coralville Lake, on the Iowa River in Iowa.

Updated · Source: US Army Corps of EngineersUSACE Provisional

Water level Provisional

687.24ft

msl · 3:00 PM CST, Nov 8, 2026

  • 4.24 ftabove full pool (683.0 ft)
  • 47,066acre-ft in storage
  • +0.24 ftin 24 h+0.66 ft in 7 days+1.46 ft in 30 days
682684686688690682684686688690
  • Full pool
  • 1 yr ago

Is Coralville Lake full?

Yes. Coralville Lake is at full pool and 4.24 ft into its flood pool.

Coralville Lake level history

Full pool 683.0 ft
View data table
DateLevel (ft)% full
Nov 8, 2026687.24—
Nov 7, 2026686.98—
Nov 6, 2026686.90—
Nov 5, 2026686.97—
Nov 4, 2026687.19—
Nov 3, 2026686.92—
Nov 2, 2026686.67—
Nov 1, 2026686.58—
Oct 31, 2026686.46—
Oct 30, 2026686.32—
Oct 29, 2026686.31—
Oct 28, 2026686.23—
Oct 27, 2026686.14—
Oct 26, 2026686.23—
Oct 25, 2026686.30—
Oct 24, 2026686.28—
Oct 23, 2026686.20—
Oct 22, 2026686.18—
Oct 21, 2026686.22—
Oct 20, 2026686.15—
Oct 19, 2026686.16—
Oct 18, 2026686.06—
Oct 17, 2026686.01—
Oct 16, 2026686.04—
Oct 15, 2026685.96—
Oct 14, 2026685.91—
Oct 13, 2026686.29—
Oct 12, 2026686.62—
Oct 11, 2026686.42—
Oct 10, 2026686.10—
Oct 9, 2026685.78—
  • Coralville Lake level
  • Full pool 683.0 ft
  • Above full pool
Source: USACE · Daily averages since 2012

Coralville Lake on Nov 8 in past years

Coralville Lake water level on Nov 8 in past years
YearLevel (ft)vs todayvs full pool
2026today687.24—+4.24 ft
2025686.78−0.46+3.78 ft
2024687.03−0.21+4.03 ft
2023682.47−4.77−0.53 ft
2022685.92−1.32+2.92 ft
2021686.39−0.85+3.39 ft
2020686.57−0.67+3.57 ft
2019686.37−0.87+3.37 ft
2018700.81+13.57+17.81 ft
2017686.42−0.82+3.42 ft
2016686.44−0.80+3.44 ft

Today’s level is the highest for this date since 2018.

Lake facts

Full pool (conservation pool)
683.0 ft msl
Top of flood pool
712.0 ft msl
Highest since 2012
710.93 ftOct 18, 2018
Lowest since 2012
678.76 ftMar 25, 2016
Data since
Feb 16, 2012
Dam
Coralville Damcompleted 1958
River
Iowa River
Operated by
US Army Corps of Engineers, Rock Island District
Dam location
Johnson County
Gauge location
41.7247, −91.5278

Dam, river and owner from the National Inventory of Dams (USACE). Records cover Feb 16, 2012 to today (daily averages).

Weather on the lake

  1. This Afternoon60°FHighLow 38°FNW 5–10 mphSunny
  2. Tonight38°FLowW 0–5 mphMostly Clear
  3. Monday64°FHighLow 42°FS 0–10 mphMostly Sunny
  4. Tuesday63°FHighLow 43°FCalmSunny
  5. Wednesday57°FHighLow 37°FNE 0–10 mphChance Rain Showers then Partly Sunny
  6. Thursday45°FHighLow 28°FN 10 mphMostly Sunny
  7. Friday42°FHighLow 29°FN 5 mphSunny

Forecast: National Weather Service for the dam area (41.72, −91.53). Wind speeds are forecasts, not measurements.

Nearby lakes

Quick answers

What is the full pool level of Coralville Lake?
683.0 ft above mean sea level, the top of its conservation pool. Above it, water is held in the flood pool (up to 712.0 ft) and released through Coralville Dam when conditions downstream allow.
Is Coralville Lake above full pool?
Yes. On Nov 8, 2026 it was 4.24 ft above full pool, in the flood pool. Operators release that water downstream when conditions allow.
Is Coralville Lake rising or falling?
It is rising: +0.66 ft in the last 7 days and +0.24 ft in 24 hours, to 687.24 ft on 3:00 PM CST, Nov 8, 2026 (US Army Corps of Engineers).
What is the highest level in our data?
Coralville Lake reached 710.93 ft on Oct 18, 2018. The lowest was 678.76 ft on Mar 25, 2016 (USACE data since 2012; older records are not in this data set).
How much has Coralville Lake changed in the last year?
In the last 12 months it ranged from 681.97 ft (Mar 8, 2026) to 687.49 ft (Nov 26, 2025), a swing of 5.52 ft.
How often is this page updated?
This page is updated several times a day with the latest reading from US Army Corps of Engineers. The last reading is from 3:00 PM CST, Nov 8, 2026.

Where this data comes from

Hourly pool elevation from the US Army Corps of Engineers (water.usace.army.mil). Recent readings are provisional and may be revised. Weather from the National Weather Service. Dam details from the National Inventory of Dams.

Lake Levels Daily is an independent site, not affiliated with TWDB, LCRA, USACE, USGS, NOAA, TVA or any lake operator. Check official sources before making safety decisions.