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Hannen Lake

General Information

County: Benton
Location: 4 miles Southwest of Blairstown
Acres: 38.00
Maximum Depth: 22 ft. (2006 - Data collected as part of the statewide lake mapping program.)
Motoring Restrictions: Electric motors only


Amenities at Hannen Lake include:
  • Boat Access
  • Fishing Jetty
  • Accessible Pier
  • Picnic Area
  • Beach
  • Trails
  • Accessible Facilities
  • Playground
  • Restrooms
  • Camping
  • Good/Excellent Shorefishing
  • Hard Surface Boat Ramp
  • Accessible Shoreline

Fishing Report

For more information, contact the Lake Macbride Fisheries Station at 319-624-3615.
Channel Catfish - Fair: Some nice catfish are still being caught.
Largemouth Bass - Fair: Reports are saying that the nicer bass a bit deeper. There are many fish under 12" but there are a fair number of fish in the 14-18" range as well.

Fishing Forecast

Bluegill numbers are moderate with all sizes up to 8" available, although the majority of the fish sampled were 5-6". Crappie numbers are fair with most fish being 10-11". Largemouth bass numbers are good with many fish in the 13-18" size range.(2015)

Lake Maps

Download Printable Lake Map

You can zoom in on the map for bathymetric information for some lakes

Popular Fish Species at this Lake

Fish Stocking

  • 05/16/2012 - 2,524 Channel Catfish (6.2")
  • 05/17/2010 - 2,314 Channel Catfish (5.0")
  • 06/03/2008 - 2,280 Channel Catfish (5.7")
  • 06/06/2007 - 2,280 Channel Catfish (5.7")
  • 05/23/2006 - 2,280 Channel Catfish (Cage)
  • 10/14/2005 - 90 Grass carp (10")
  • 07/06/2005 - 2,280 Channel Catfish (Cage)


The Fishing Regulations brochure is available for download. The summaries listed below are a partial listing provided for your benefit.

  • Black Crappie
    • Season: Continuous
    • Daily Bag Limit: combined black and white crappie, 25 fish
    • Possession Limit: unlimited
    • Length Limit: none
    • Other: No daily limit on private waters
  • Bluegill
    • Season: Continuous
    • Daily Bag Limit: 25 fish
    • Possession Limit: unlimited
    • Length Limit: none
    • Other: No daily limit on private waters
  • Channel Catfish
    • Season: Continuous
    • Daily Bag Limit: combined: channel, blue and flathead catfish, 8 fish
    • Possession Limit: combined: channel, blue and flathead catfish, 30 fish
    • 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:

Fish Surveys

Lake Fish Survey Data Data from the most recent fisheries survey of this lake is provided on this external web site. This data may include information from various netting surveys and/or electroshocking surveys. Data includes numbers of fish sampled, and fish size ranges. Not all lakes are sampled every year.

Lake Mini-report

Lake Reports Summary report information about selected (~130) lakes regarding water quality, upstream land use, usage, economic value and more. Reports are customizable by the user to include only that information which the user desires to include.

Water Quality

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

The vast majority of Iowa’s streams, rivers and lakes offer safe and high-quality fish that pose little or no threat to human health if consumed. Some limitations may apply for young children and pregnant women. Here’s a Fish Consumption Fact Sheet from the Iowa DNR and the Iowa Dept. of Public Health for more information. Here is a list of current fish consumption advisories for Iowa lakes and rivers.