A Beautiful Boating Destination on Iowa's Ocean
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A Proud Member of the TopSide Marinas Family
Welcome to Iowa's Ocean
Lake Rathbun
For all Boating Styles and Activities
11,000 acres normal pool - Iowa's largest usable lake pool. Minimal shoal water - well marked and charted, 115 miles of undeveloped park and natural shoreline. Low frequency & magnitude flooding, Newly adopted 2016 water release plan to mitigate fluctuations. Minimal flood debris flow. Excellent water quality - minimal silting. Coves, creeks, channels, & beaches for all uses and boating styles. Nine mile sailing fetch and reliable summer breeze. Legendary walleye, catfish, and crappie fishing. Destination boating, family-friendly, and Iowa's best sunsets.
Iowa Corps of Engineers Lake Facts:
- Rathbun Lake is the only Iowa Corps Reservoir that does not receive wastewater effluent discharge from Iowa's major metro areas.
- Rathbun Lake is below expected sedimentation levels. Redrock, Saylorville, and Coralville are ahead of expected levels. Redrock has had two normal pool level increases since opening to accommodate siltation.
- Rathbun Lake water quality allows use as both a source of drinking water by RRWA and as a primary fish hatchery by the IDNR.
- The Rathbun Land and Water Alliance have had a demonstrable impact in efforts to mitigate pollutant discharge into our lake. The effort continues with goals that will further improve our recreational water
- Variation of the normal pool to maximum pool for Iowa Corps of Engineers reservoirs - Rathbun 22 feet Saylorville 48 feet Coralville 38 feet Redrock 38 feet