Ice build-up on the wall of the tailrace.

Geddes Dam, Huron River, Ann Arbor
February 9, 2013
Detail of floating ice.

Geddes Dam tailrace.
Huron River, Ann Arbor
February 9, 2013
Detail of floating ice and icicles above the waterline, plus reflections.

Geddes Dam tailrace.
Huron River, Ann Arbor
February 9, 2013
Detail of floating ice and icicles above the waterline, plus reflections.

Geddes Dam tailrace.
Huron River, Ann Arbor
February 9, 2013
Ice build-up on the wall of the tailrace.

Geddes Dam, Huron River, Ann Arbor
February 9, 2013
I can only guess what combination of conditions produced such a weird coating of ice.

South half of the south tailrace, Geddes Dam.
Huron River, Ann Arbor, Michigan
February 9, 2013
Lineup.
Ring-billed gulls fishing from the Grand Rapids Dam, Grand Rapid, Ohio
October 14, 2010
An adult ring-billed gull warning an immature one to keep its distance.  Maumee River dam at Grand Rapids.

Grand Rapids, Ohio
October 14, 2010
Ring-billed gulls perched at the lip of the dam, seemingly impervious to the rush of water past them.

Grand Rapids Dam, Grand Rapids, Ohio
October 14, 2010
Ice build-up on the wall of the tailrace.

Geddes Dam, Huron River, Ann Arbor
February 9, 2013
Ice build-up on the wall of the tailrace.

Geddes Dam, Huron River, Ann Arbor
February 9, 2013
Ice build-up on the wall of the tailrace.

Geddes Dam, Huron River, Ann Arbor
February 9, 2013
See photo in original gallery.