Lights on three key Mississippi River bridges in southeast Minnesota are being temporarily darkened to combat dangerous ...

The Minnesota Department of Transportation will be turning off overhead lights on three Mississippi River bridges to prevent ...

TREMPEALEAU, Wis. (KARE11) - It is a right of summer that this year, residents along the Mississippi River would rather do without. We're talking about the annual mayfly hatch, an event that fills the ...

If you've driven by a local river or lake recently, your car is probably covered in the corpses of these swarming pests.

A sign of a healthy river — although not necessarily liked — is approaching: it’s mayfly hatch season. Every year around this time, thousands of mayflies emerge from the Mississippi River for about ...

MINNEAPOLIS -- July is here and, unfortunately, so are the mayflies. These harmless but irritating insects have made their return in full force, and due to their incredible numbers, could even be seen ...