Fish Iowa - Lakes, Ponds, and Reservoirs - Coralville Reservoir


About Coralville Reservoir

Surface Area (acres): 5340.00
Maximum Depth (feet): Unknown
Motoring Restrictions: None
See below for additional location-specific regulations

Location

County: Johnson
Description: A flood control reservoir known for it's catfish and big crappie potential
Coordinates: 41.72688728, -91.52961854

Amenities

Amenities at Coralville Reservoir include:
  • Boat Access
  • Picnic Area
  • Beach
  • Trails
  • Playground
  • Restrooms
  • Camping
  • Hard Surface Boat Ramp

Fishing Forecast

Bluegill numbers are fair; most fish are 4- to 7-inches. Larger crappies have not been seen since spring. Most fish this fall were 7- to 9-inches. If the bigger ones are still out there, they will be 11- to 13-inches. Largemouth bass numbers are on the rise and most fish are 10- to 17-inches. White bass numbers are moderate with most 10- to 14-inches. Walleyes and saugeyes are difficult to sample here, but there should be many smaller fish, with walleyes up to 28-inches available. Channel catfish and flathead catfish numbers are down from last winter's winter kill, but numbers are still good and most channels are 1-8 pounds and flatheads up to 40-50 pounds.(2015)

Consumption Guidelines

Iowa-Caught Fish Are Safe to Eat, In Almost All Cases

In nearly all cases, Iowa fish are safe to eat. Cleaning and/or preparing the meal causes most of the problems regarding taste or color of fish. Like all living creatures, fish are susceptible to diseases, parasites, and other naturally occurring conditions in the water. If you suspect your fish is affected by any of these conditions, do not eat it. Consider eating smaller and younger fish which usually have lower levels of contaminants than larger ones. Most contaminants accumulate in larger, older fish. For additional information, check out our resources for eating and cooking Iowa caught fish.

To learn more about fish tissue monitoring, visit our Fish Tissue Monitoring page .

Stocking

  • May 2022 - 5,340,000 Walleye (Fry)
  • June 2022 - 80,098 Walleye (1.6)
  • 6/21/22 - 55,188 Wiper (Hybrid Striped Bass) (1.2)
  • 4/25/22 - 319,000 Saugeye (Fry)
  • June 2021 - 79,665 Walleye (1.6)
  • 06/29/2021 - 54,726 Wiper (Hybrid Striped Bass) (1.7)
  • 04/16/2021 - 70,400 Saugeye (Fry)
  • June 2020 - 80,189 Walleye (1.6)
  • 04/30/2020 - 50,000 Walleye (Fry)
  • 04/30/2020 - 100,000 Walleye (Fry)
  • June 2019 - 88,121 Walleye (1.7)
  • 06/28/2019 - 40,130 Wiper (Hybrid Striped Bass) (1.6)
  • 05/01/2019 - 5,340,000 Walleye (Fry)
  • 07/03/2018 - 25,998 Wiper (Hybrid Striped Bass) (1.81)
  • 06/29/2018 - 53,536 Wiper (Hybrid Striped Bass) (1.68)
  • 06/05/2018 - 80,192 Walleye (1.41)
  • 05/08/2018 - 5,340,000 Walleye (Fry)
  • 6/29/2017 - 54,044 Wiper (Hybrid Striped Bass) (2")
  • 6/2/2017 - 12,664 Walleye (1.7")
  • 6/2/2017 - 14,037 Walleye (1.8")
  • 5/30/2017 - 85,410 Walleye (1.7")
  • 4/26/2017 - 5,340,000 Walleye (fry)
  • 6/8/16 - 105,073 Walleye (1.5")
  • 6/22/2016 - 42,989 Wiper (Hybrid Striped Bass) (1.5")
  • 6/17/2016 - 56,211 Wiper (Hybrid Striped Bass) (1.4")
  • 5/4/16 - 1,000,000 Wiper (Hybrid Striped Bass) (Fry)
  • 5/26/16 - 53,900 Walleye (Fingerling)
  • 4/27/16 - 5,340,000 Walleye (Fry)
  • 06/18/2015 - 75,070 Wiper (Hybrid Striped Bass) (1.5")
  • 05/12/2015 - 500,000 Wiper (Hybrid Striped Bass) (Fry)
  • 04/23/2015 - 5,200,000 Walleye (Fry)

Management

  • 2023 - Fish Cleaning Station-Fish Cleaning Station: Located at Tailwater West
  • 2015 - Commercial Fishing-Other: Coralville Lakes harvest was 133,739 pounds of buffalo, 97,784 pounds of carp and 2,880 pounds of freshwater drum. Included in the carp totals are 3,461 pounds of grass carp and 14,984 pounds of carpsucker. Total harvest was 234,403 pounds of fish.
  • 2014 - Survey-Population: Grass carp reproduction was again documented in Coralville Reservoir in Johnson County. A total of 68 grass carp between 65-199 mm were collected from two areas in Coralville Reservoir using a backpack electrofishing unit. The areas were by the ATV
  • 2014 - RAFT sampling-RAFT: Collected 12 adult walleye from Coralville Reservoir for mercury study.
  • 2014 - Fish Kills-Natural Causes: A major fish kill occurred on Coralville Reservoir due to low oxygen levels during the extreme long cold winter. Dissolved oxygen levels were monitored weekly and relayed to the Coralville Lake Army Corps of Engineers. The spring four foot pool dra
  • 2014 - Commercial Fishing-Other: Coralville Lakes harvest was 100,381 pounds of buffalo, 58,463 pounds of carp and 800 pounds of freshwater drum. Included in the carp totals are 6,017 pounds of grass carp and 3,225 pounds of carpsucker. Total harvest was 159,644 pounds of fish.
  • 2013 - Commercial Fishing-Other: Coralville Lakes harvest was 74,325 pounds of buffalo and 51,103 pounds of carp. Included in the carp totals are 1,976 pounds of grass carp and 5,121 pounds of carpsucker. Total harvest was 125,428 pounds of fish.
  • 2013 - RAFT sampling-RAFT: Collected and prepared fish tissue samples for mercury study.
  • 2012 - Fish Kills-Natural Causes: On July 9th the Lake Macbride Management staff investigated a fish kill on Coralville Reservoir. A total of 95 dead walleye were counted that were apparently killed by excessive water temperatures that reached 95 degrees. All dead walleye were obs
  • 2012 - Commercial Fishing-Other: Coralville Lakes harvest was 210,691 pounds of buffalo, 64,458 pounds of carp and 413 pounds of freshwater drum. Included in the carp totals are 1,241 pounds of grass carp and 2,656 pounds of carpsucker. Total harvest was 275,562 pounds of fish.
  • 2011 - Commercial Fishing-Other: Coralville Lakes harvest was 157,909 pounds of buffalo, 373,839 pounds of carp and 396 pounds of freshwater drum. Included in the carp totals are 20,822 pounds of grass carp and 22,822 pounds of carpsucker. Total harvest was 532,144 pounds of fish.
  • 2011 - Fish Kills-Thermal: Extreme heat caused a kill in Coralville Reservoir in August. Around 100 northern pike and walleye were found dead in the shallow upper ends of the reservoir.
  • 2010 - Commercial Fishing-Other: Coralville Lakes harvest was 42,973 pounds of buffalo and 65,976 pounds of carp. Included in the carp totals are 12,009 pounds of grass carp and 6,520 pounds of carpsucker. Total harvest was 108,949 pounds of fish.
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2010 - Structures-Trees Hardwood: hardwood tree
  • 2009 - Commercial Fishing-Other: Coralville Lakes harvest was 32,301 pounds of buffalo and 18,368 pounds of carp. Included in the carp totals are 1,597 pounds of grass carp and 1,488 pounds of carpsucker. Total harvest was 50,669 pounds of fish.

Motoring Restrictions

Motoring Restrictions: None

Contacts for this Location

Fishing Regulations

  • Bigmouth Buffalo
    • Season: Continuous
    • Daily Bag Limit: none
    • Possession Limit: unlimited
    • Length Limit: none
    • Other:
  • Black Bullhead
    • Season: Continuous
    • Daily Bag Limit: unlimited
    • Possession Limit: unlimited
    • Length Limit: none
    • Other:
  • Black Crappie
    • Season: Continuous
    • Daily Bag Limit: combined black and white crappie, 25 fish
    • Possession Limit: unlimited
    • Length Limit: none
    • Other:
  • Channel Catfish
    • Season: Continuous
    • Daily Bag Limit: combined: channel, blue and flathead catfish, 15 fish
    • Possession Limit: combined: channel, blue and flathead catfish, 30 fish
    • Length Limit: none
    • Other:
  • Common Carp
    • Season: Continuous
    • Daily Bag Limit: none
    • Possession Limit: unlimited
    • Length Limit: none
    • Other: May be taken by hand fishing, by snagging, by spear or by bow and arrow, day or night.
  • Flathead Catfish
    • Season: Continuous
    • Daily Bag Limit: combined: channel, blue and flathead catfish, 15 fish
    • Possession Limit: combined: channel, blue and flathead catfish, 30 fish
    • Length Limit: none
    • Other:
  • Freshwater Drum
    • Season: Continuous
    • Daily Bag Limit: none
    • Possession Limit: unlimited
    • Length Limit: none
    • Other: May be taken by hand fishing, by snagging, by spear or by bow and arrow, day or night.
  • Green Sunfish
    • Season: Continuous
    • Daily Bag Limit: none
    • Possession Limit: unlimited
    • Length Limit: none
    • Other:
  • Largemouth Bass
    • Season: Continuous
    • Daily Bag Limit: combined black bass, 3 fish
    • Possession Limit: combined black bass, 6 fish
    • Length Limit: 15-inch minimum
    • Other:
  • Northern Pike
    • Season: Continuous
    • Daily Bag Limit: 3 fish
    • Possession Limit: 6 fish
    • Length Limit: none
    • Other:
  • Quillback
    • Season: Continuous
    • Daily Bag Limit: none
    • Possession Limit: unlimited
    • Length Limit: none
    • Other: May be taken by hand fishing, by snagging, by spear or by bow and arrow, day or night.
  • Shorthead redhorse
    • Season: Continuous
    • Daily Bag Limit: none
    • Possession Limit: unlimited
    • Length Limit: none
    • Other: May be taken by hand fishing, by snagging, by spear or by bow and arrow, day or night.
  • Smallmouth Bass
    • Season: Continuous
    • Daily Bag Limit: combined black bass, 3 fish
    • Possession Limit: combined black bass, 6 fish
    • Length Limit: 15-inch minimum
    • Other:
  • Smallmouth Buffalo
    • Season: Continuous
    • Daily Bag Limit: none
    • Possession Limit: unlimited
    • Length Limit: none
    • Other:
  • Spotted bass
    • Season: Continuous
    • Daily Bag Limit: combined black bass, 3 fish
    • Possession Limit: combined black bass, 6 fish
    • Length Limit: 15-inch minimum
    • Other:
  • Walleye
    • Season: Continuous
    • Daily Bag Limit: combined walleye, sauger and saugeye; 5 fish
    • Possession Limit: combined walleye, sauger and saugeye; 10 fish
    • Length Limit: none
    • Other:
  • White Bass
    • Season: Continuous
    • Daily Bag Limit: none
    • Possession Limit: unlimited
    • Length Limit: none
    • Other:
  • White Crappie
    • Season: Continuous
    • Daily Bag Limit: combined black and white crappie, 25 fish
    • Possession Limit: unlimited
    • Length Limit: none
    • Other:
  • White Sucker
    • Season: Continuous
    • Daily Bag Limit: none
    • Possession Limit: unlimited
    • Length Limit: none
    • Other: May be taken by hand fishing, by snagging, by spear or by bow and arrow, day or night.

Aquatic Invasive Species

    No known aquatic invasive species have been found

To learn more about AIS, visit the Iowa DNR's Aquatic Invasive Species page for more information and resources.

Fish Surveys

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