County supervisors: Coralville lake plan is out of date

Coralville Lake. Photo by Alan Light; Flickr
Coralville Lake. Photo by Alan Light; Flickr

According to the Johnson County Board of Supervisors, Coralville Lake’s management plan is in need of an update. They have requested funding from the Army Corps of Engineers in order to research and write a new plan.

The reservoir’s current plan has been in place since 1995, and the Supervisors say that it does not account for new conditions due to climate change. Ideally, local Corps officials would be able to make decisions about water levels without having to wait for federal approval. The discretion to make such decisions without waiting for bureaucracy might have prevented some of the damage done by the flood events of the last decade.

The County Supervisors rely heavily on information provided by the University of Iowa Flood Center (IFC), which monitors local flood conditions. If the management plan is successfully rewritten, the Supervisors could act quickly on IFC information during any future flood situation, and more efficiently handle an emergency situation.

June ranked Iowa’s fourth wettest month in 141 years

Nick Fetty | July 11, 2014
The Skunk River near White Oak in Polk County on July 2, 2014. Photo by Carl Wycoff; Flickr
The Skunk River near White Oak in Polk County on July 2, 2014.
Photo by Carl Wycoff; Flickr

Last month’s recorded rainfall in Iowa was nearly ten inches, making it the fourth wettest month the state has seen since accurate records started being kept in 1873.

The week of June 15th saw rainfall levels nearly three times above average and later in month a Cedar Rapids teenager died after flash floods swept him into a storm sewer. Heavy rainfall led to flash flooding particularly in the central and eastern portions of the state while farmers in western Iowa saw damage to their crops caused by storms.

The Coralville Reservoir crested at 708.2 feet above sea level earlier this week and levels are expected to return to normal if weather cooperates. The University of Iowa has spent about $4 million on measures to protect university property while the City of Iowa City has spent more than $500,000. These figures do not include damage estimates.

The wettest year on record in Iowa was 1993 which saw 48.22 inches of rain. This led to flooding across the state, particularly Des Moines where about 250,000 residents were without water for as long as two weeks.

To monitor weather and water levels in your area, use the Iowa Flood Information System (IFIS).

Severe weather and heavy rains pound eastern Iowa, rest of state

Nick Fetty | July 1, 2014
A wall cloud near Missouri Valley in western Iowa on June 29. Photo by Rich Carstensen; Flickr
A wall cloud near Missouri Valley in western Iowa on June 29.
Photo by Rich Carstensen; Flickr

Heavy precipitation and severe storms have caused flash floods, power outages, and other issues as approximately 2.5 inches of rain fell in Iowa City Monday afternoon.

The series of storms – known as a “derecho” – also produced gusts as high as 64 miles per hour which contributed to power loss for thousands in the Iowa City-Coralville area. As of 9 a.m. Tuesday, the Iowa River in Iowa City stood at 22.39 feet. The U.S. Army Corps of Engineers announced Monday that it would increase the Coralville Reservoir’s outflow from 7,000 cubic feet per second (cfs) to 10,000 cfs beginning Tuesday. Efforts have been made to protect various University of Iowa buildings, including the flood-prone Mayflower Residence Hall on North Dubuque Street.

The severe weather has also impacted other parts of the state such as near Fairfax, where a building collapse has caused one death. Search efforts are currently underway for a Cedar Rapids teenager who is missing after being swept into a storm sewer while several were injured during a Cedar Rapids Kernels game last night. Hail ravaged western parts of the state while heavy winds and possible tornadoes hit central Iowa.

Governor Branstad has issued a disaster proclamation for several central and eastern Iowa counties including Adair, Cedar, Guthrie, Jones, and Linn.

For more information about flooding across the state, check out the Iowa Flood Information System.