Iowa DNR
Iowa DNR Fish Kill Database

Fish Kill Event - West Branch Floyd River

bridge east of 430th and Harrison Ave intersection, NW of Orange City

Event ID
954
Date of Kill
8/10/2016
Waterbody Type
River/Stream
Cause Origin
Unknown
Cause
Unknown
Mode
N/A
Magnitude
6 (25,001 - 50,000 fish killed)
Estimated Fish Killed
37,910
Kill Length
4.50 miles
Valuation
$10,001.16
Investigation Expenses
$816.82
County
Sioux
ESD Field Office
FO 3
Fisheries Office
Spirit Lake Hatchery
LongDD
-96.14877
LatDD
43.02620
Created Date
3/15/2019 8:58:20 AM
Last Update
3/15/2019 8:58:20 AM
For more information about this fish kill event, contact the Field Office or Fisheries Office listed above.
Impacted Assessment Segments
Lat/Long uses WGS84 datum
Onsite Comments

Investigated on 8/13 - 8/14/2016

This kill looks to have occurred 4-6 days ago based on the level of decomposition and scavenger activity. Many fish were deteriorated heavily. This stream bed is extremely hard to traverse in places because of heavy siltation and mud shorelines. The kill looks to have occurred when water levels were 6 inches to 1 foot higher than current level. The beginning of the kill is fairly well defined and located on the map in report. There were no dead fish upstream from this location.

A source could not be determined by ESD. No restitution will be sought.