42°31′05″N90°39′04″W / 42.518°N 90.651°W
| Lake Peosta Channel | |
|---|---|
| Lake Peosta, Peosta Channel | |
 Lake Peosta Channel visible at the bottom of the image | |
| Location | Dubuque, Iowa |
| Type | River channel |
| Part of | Mississippi River |
| Basin countries | United States |
Lake Peosta Channel, or simply Lake Peosta or Peosta Channel, is a branch of the Mississippi River in Dubuque, Iowa. It separates Chaplain Schmitt Island from the mainland. [1] Flooding events have built up a ridge of sediment near the mouth of the channel as a result of silting. [2] Lake Peosta Channel was where modern Kerper Boulevard is in 1875. [3]
US 151/61 crosses the channel. [4]
In the 1950s, a boat harbor was dredged out from Lake Peosta Channel. [5]
