Fish Kill Event - Unnamed Tributary to Otter Creek
Kill affected 2.11 miles of an unnamed tributary to Otter Creek from the mouth of a now dry ditch north of 1 st St. NE to the railroad bridge in Jefferson Township, Sections 21, 22, 20, 29, Fayette County, traveling through Oelwein, Iowa.
- Event ID
- 1035
- Date of Kill
- 6/4/2023
- Waterbody Type
- River/Stream
- Cause Origin
- Natural
- Cause
- Environmental
- Mode
- N/A
- Magnitude
- 2 (101 - 1000 fish killed)
- Estimated Fish Killed
- 1,000
- Kill Length
- 2.11 miles
- Investigation Expenses
- $285.83
- County
- Fayette
- ESD Field Office
- FO 1
- Fisheries Office
- Decorah State Hatchery
- LongDD
- -91.91540
- LatDD
- 42.67933
- Created Date
- 6/6/2023 8:38:53 AM
- Last Update
- 7/6/2023 2:44:54 PM
Highlighted river segments indicate those impacted in part or whole by this fish kill event. It is not meant to represent the actual extent of the kill.
Fish kill assessment was not conducted due to unknown age of kill, body condition of fish, and no responsible party was found.
Water was clear and very shallow. Stream running through town is heavily rip-rapped with many hard surfacessusceptible to run-off. Sections of stream go dry. Temperatures previous to kill were very hot in the upper 80’s to 90’s forover several weeks with little to no rain. No official assessment was made on the dead fish however both live and dead fishwere observed the length of the kill area. Carcasses were identified as minnows, suckers, chubs, and dace. No game fish wereobserved above or below the bridges crossing the stream. At the minimum, 1,000 fish were killed.