Fish Iowa - Lakes, Ponds, and Reservoirs - Pool 12, Mississippi River


About Pool 12, Mississippi River

Surface Area (acres): 12349.00
Maximum Depth (feet): Unknown
Motoring Restrictions: In a few selected places no wake and no motor
See below for additional location-specific regulations

Location

County: Dubuque
Description: Starts at River Mile 583
Coordinates: 42.34631724, -90.33879535

Nearby Parks

- No results found

Amenities

Amenities at Pool 12, Mississippi River include:
  • Boat Access
  • Fishing Jetty
  • Accessible Pier
  • Picnic Area
  • Beach
  • Trails
  • Accessible Facilities
  • Playground
  • Restrooms
  • Camping
  • Good/Excellent Shorefishing
  • Gravel Boat Ramp
  • Hard Surface Boat Ramp
  • Carry Down Boat Launch
  • Accessible Shoreline
  • Fish Cleaning Station

Fishing Report

  • Ice Condition: None
  • Water Temperature (°F): 49.0
  • Ramp Condition: Useable
  • Comments: Water level is around 5.0 feet at the Dubuque tailwater and holding steady. Water temperatures are steadily dropping. Use caution when navigating in off channel areas. Last updated on 11/06/2025
Species Reports
Largemouth Bass - Excellent: Try spinnerbaits along dying weed edges or crankbaits along rocky structures or edges of dredge cuts in backwater areas. Also try pitching jigs into woody structure. Last updated on 10/30/2025
Smallmouth Bass - Fair: Cast inline spinners or crankbaits as close as possible to rock piles or shoreline rip-rap. . Last updated on 10/22/2025
Black Crappie - Slow: Use a minnow or small plastic on a crappie rig in the tree piles in sloughs near backwater overwintering areas. Last updated on 10/30/2025
Bluegill - Slow: Look for bluegill in backwaters and side channels around brush piles. Bluegill are on the move into overwintering areas. Last updated on 10/30/2025
Northern Pike - Slow: Cast spoons, spinnerbaits or inline spinners at the mouth of tributary streams or along dying vegetation edges in backwaters. Last updated on 10/30/2025
Sauger - Good: Saugers are biting in the tailwaters of the Lock and Dam. Vertical jig live minnows, hair jigs or twister tails. Last updated on 10/30/2025
Walleye - Good: Try wing dams throughout Pool 12; fishing has improved with stable water levels, and many fish are still on the wing dams. Troll crankbaits or crawlers on a three-way rig. Hair jigs have been effective. The tailwater bite has picked up over the past week. Last updated on 10/30/2025
White Bass - Good: Look for feeding schools of white bass in the tailwaters or along rocky shorelines. Watch for them to start breaking water; cast your rig into the area. Use a small inline spinner or small white jig with a twister tail. One Eyes can also be effective in deeper water. Last updated on 11/03/2025

Fishing Summary

Excellent Fishery! Mississippi River fisheries are varied with nearly 100 species of fish being present in each Pool. Pool 12 is especially noted for quality Largemouth Bass fishing, sunfish, crappie, and catfish. Some other fisheries are coming on strong as well including smallmouth bass and northern pike. Freshwater drum are always a staple and easy to catch in any moderate flowing current areas. Yellow perch can also be found in Pool 12 but often they are reported as "hit or miss". When found they can be abundant. The dredging of Stone, Tippy's, Sunfish and Keogh have really improved opportunities for angling in the middle and lower sections of Pool 12. - Last updated on 04/25/2025.

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

  • 05/01/2018 - 50,000 Walleye (Fry)

Management

    - No results found

Motoring Restrictions

Motoring Restrictions: In a few selected places no wake and no motor

Contacts for this Location

Fishing Regulations

The summaries listed below are a partial listing provided for your benefit. Familiarize yourself with the complete Fishing Regulations here: Iowa DNR Fishing Regulations and Laws.

Aquatic Invasive Species

  • Bighead Carp
  • Brittle Naiad
  • Eurasian Watermilfoil
  • Flowering Rush
  • Silver Carp
  • Zebra Mussel

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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