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Home › Waters › Iowa › Iowa River
Tailwater · East central Iowa, below the Coralville Dam in Johnson County, running south through Iowa City toward the Mississippi at Toolesboro · Iowa

Iowa River Fishing Guides

The tailrace below Coralville Dam, where walleye, sauger and heavy flathead catfish stack in the fastest water in eastern Iowa.

Sunrise over a winding river cutting through open farm country
Gauge location. Map data © OpenStreetMap contributors.

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About the Iowa River

The Iowa River below Coralville Dam is the most productive stretch of moving water in this part of the state, and the reason is the dam itself. Coralville is an Army Corps flood-control reservoir, and when water moves through the outlet it pushes baitfish into the tailrace and concentrates everything that eats them into a short, hard-fished reach. Anglers who learn the release pattern do well here; anglers who show up at random do not.

Walleye and sauger are the headline fish and both run to the tailrace in numbers through the cooler months. The catfish population is the deeper resource – channel cats are everywhere and willing, and flatheads hold against the rock and the woody cover below the outlet and reach genuinely large sizes. White bass make strong runs when the timing is right, freshwater drum are abundant, and shovelnose sturgeon occupy the sandy scour holes and are worth knowing about before one surprises somebody.

Below the tailrace the river settles into a different character entirely, winding south past Iowa City through farm country with cut banks, sand bars and logjams. Smallmouth bass hold on the rock and the current seams in the upper part of that reach, largemouth occupy the slower backwaters, and the catfish continue the whole way down. It floats well in a jon boat or kayak at moderate levels and sees far less pressure than the dam does.

Access at the dam is developed and easy, with Corps parking and bank fishing areas below the structure and the Coralville Lake recreation areas above it. Flows are managed for flood control rather than fishing, so the river can go from low and clear to high and brown in a day, and the tailrace becomes genuinely dangerous at high release. Check the gauge and the release schedule together, and stay off the rocks when the water is up.

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Version 1.0, dated 6 September 2026. Applies to every photograph submitted to GuidedFloats through the contact form, a species page, or the community board.

1. What you give us

By ticking the box on the form you grant Guided Floats, LLC (“GuidedFloats”, “we”) a non-exclusive, worldwide, royalty-free license to store, copy, resize, crop and display your photograph on guidedfloats.com, in GuidedFloats’ own social media accounts and mobile apps, and in material that promotes the site itself, in connection with the fish, water or community feature you sent it in for. The license lasts until you withdraw it (section 4).

You keep the copyright. The license is not exclusive, so you can use the photo anywhere else and license it to anyone else. We will not sell your photo, license it on to anyone else on its own, or use it in paid advertising for a third party.

2. What you confirm

You confirm that you took the photograph yourself (or otherwise own the rights to it), that you have the right to grant this license, and that publishing the photo does not infringe anyone else’s copyright, privacy or other rights.

If any person is recognisable in the photo, you confirm that they have agreed to its being published here, and that a parent or guardian has agreed on behalf of anyone under 18. Please do not send photographs of other people’s catches, screenshots, or pictures copied from other websites or social media.

3. Credit

We print the credit name you give us beside the photo wherever it appears on the site, and record it as the photo’s creator in the page’s structured data. If you leave the credit blank we use the name you gave us on the form. Write “Anonymous” if you prefer no name at all. Your email address, phone number and the exact spot the photo was taken are never published.

4. Withdrawing the license

You can withdraw the license at any time by emailing hello@guidedfloats.com, or by using the contact form, and telling us which photo you mean. We will remove the photo from guidedfloats.com within 7 days of receiving your message and stop using it in anything new. Copies that are already outside our control — search-engine caches, social posts that have already gone out, printed material already produced — may take longer to disappear or may not be recallable, and we are not responsible for those.

5. What we may do

We choose which photos to publish and may decline any submission without giving a reason. We may crop, resize, sharpen or colour-correct a photo for display, and we may remove a photo at any time. We will not alter a photo in a way that misrepresents the fish, the water or you.

6. Your details

We keep your name, email address, the credit name, the water and date you gave us, and the network address the submission came from, with the submission record, as our evidence of this license. We hold that record for as long as the photo is published and for the retention period described in our privacy policy. Location data that your camera or phone embedded in the file is removed before the photo is published.

7. Versions

The version of this license you accepted is stored with your submission and printed with the photo. A later version does not apply to a photo you have already sent unless you agree to it.

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JPG, PNG or WebP, up to 12 MB. We resize it and strip the location data out of the file.

The name shown under the photo. Leave blank to stay anonymous.

Reader photo license v1.0 — the short version:

  • You grant Guided Floats, LLC a non-exclusive, royalty-free license to publish, resize and crop your photo on guidedfloats.com and in GuidedFloats’ own social posts and apps. You keep the copyright and can use the photo anywhere else.
  • You confirm that you took the photo yourself, that publishing it does not infringe anyone else’s rights, and that anyone recognisable in it (or a parent or guardian, if they are under 18) is happy for it to appear here.
  • Credit is printed beside the photo wherever it appears on the site, using the credit name you give us. Leave it blank and we use your name; write “Anonymous” for no name. Your email address is never published.
  • Withdrawing is one email to hello@guidedfloats.com naming the photo. It comes off the site within 7 days.
Read the full license

Version 1.0, dated 6 September 2026. Applies to every photograph submitted to GuidedFloats through the contact form, a species page, or the community board.

1. What you give us

By ticking the box on the form you grant Guided Floats, LLC (“GuidedFloats”, “we”) a non-exclusive, worldwide, royalty-free license to store, copy, resize, crop and display your photograph on guidedfloats.com, in GuidedFloats’ own social media accounts and mobile apps, and in material that promotes the site itself, in connection with the fish, water or community feature you sent it in for. The license lasts until you withdraw it (section 4).

You keep the copyright. The license is not exclusive, so you can use the photo anywhere else and license it to anyone else. We will not sell your photo, license it on to anyone else on its own, or use it in paid advertising for a third party.

2. What you confirm

You confirm that you took the photograph yourself (or otherwise own the rights to it), that you have the right to grant this license, and that publishing the photo does not infringe anyone else’s copyright, privacy or other rights.

If any person is recognisable in the photo, you confirm that they have agreed to its being published here, and that a parent or guardian has agreed on behalf of anyone under 18. Please do not send photographs of other people’s catches, screenshots, or pictures copied from other websites or social media.

3. Credit

We print the credit name you give us beside the photo wherever it appears on the site, and record it as the photo’s creator in the page’s structured data. If you leave the credit blank we use the name you gave us on the form. Write “Anonymous” if you prefer no name at all. Your email address, phone number and the exact spot the photo was taken are never published.

4. Withdrawing the license

You can withdraw the license at any time by emailing hello@guidedfloats.com, or by using the contact form, and telling us which photo you mean. We will remove the photo from guidedfloats.com within 7 days of receiving your message and stop using it in anything new. Copies that are already outside our control — search-engine caches, social posts that have already gone out, printed material already produced — may take longer to disappear or may not be recallable, and we are not responsible for those.

5. What we may do

We choose which photos to publish and may decline any submission without giving a reason. We may crop, resize, sharpen or colour-correct a photo for display, and we may remove a photo at any time. We will not alter a photo in a way that misrepresents the fish, the water or you.

6. Your details

We keep your name, email address, the credit name, the water and date you gave us, and the network address the submission came from, with the submission record, as our evidence of this license. We hold that record for as long as the photo is published and for the retention period described in our privacy policy. Location data that your camera or phone embedded in the file is removed before the photo is published.

7. Versions

The version of this license you accepted is stored with your submission and printed with the photo. A later version does not apply to a photo you have already sent unless you agree to it.

Access

Coralville Dam tailwater - the gauge reach and the main bank fishing access.
Coralville Lake Recreation Area - Corps parking, ramps and camping at the dam.
Iowa City, Terrell Mill Park - developed access on the upper river.
Sturgis Ferry Park, Iowa City - the main trailered ramp on the middle reach.
Hills access - bank and small craft access south of Iowa City.
River Junction - lower river access toward the Cedar confluence.
Columbus Junction - the bottom of the run near the Cedar River junction.

Seasons

Spring: the strongest walleye and sauger fishing of the year in the tailrace.
Summer: catfish dominate, best worked at night and on a falling river after rain.
Fall: cooling water pulls walleye back to the dam and the lower river clears.
Winter: slow, with sauger and deep-holding catfish for anglers who pick their days.

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Questions

What is the current flow on the Iowa River?

As of Sep 17, 5:00 am, the USGS gauge Iowa River below Coralville Dam nr Coralville, IA reads 1,610 cfs. Conditions update every 15 minutes.

What species can you catch on the Iowa River?

Anglers target Channel Catfish, Common Carp, Flathead Catfish, Freshwater Drum, Largemouth Bass, Sauger, Shovelnose Sturgeon, Smallmouth Bass, Walleye, White Bass on the Iowa River in Iowa.

Where can you access the Iowa River?

Coralville Dam tailwater - the gauge reach and the main bank fishing access. Coralville Lake Recreation Area - Corps parking, ramps and camping at the dam. Iowa City, Terrell Mill Park - developed access on the upper river. Sturgis Ferry Park, Iowa City - the main trailered ramp on the middle reach. Hills access - bank and small craft access south of Iowa City. River Junction - lower river access toward the Cedar confluence. Columbus Junction - the bottom of the run near the Cedar River junction.

When is the best time to fish the Iowa River?

Spring: the strongest walleye and sauger fishing of the year in the tailrace. Summer: catfish dominate, best worked at night and on a falling river after rain. Fall: cooling water pulls walleye back to the dam and the lower river clears. Winter: slow, with sauger and deep-holding catfish for anglers who pick their days.

Where are the fishing regulations for the Iowa River?

Regulations change by season and section. Read the current rules on the Iowa agency site: https://www.iowadnr.gov/things-do/fishing/regulations-laws