The Ottumwa Courier

Local News

July 25, 2013

Slowing erosion could improve water quality

(Continued)

Though Harrow's Branch residents have voiced concerns that flooding has worsened since levees were installed, Seals said that's not what this project will address.

"Their complaint is flooding, but if you have a 7-inch rain event in ... an hour, you're going to have flooding no matter what we do," he said.

The solution, Altheide said, is to create smaller sediment control basins and erosion control structures. A sediment control basin is "an earthen structure with a tile outlet that temporarily holds water and releases it slower," she said.

The erosion control structure is similar, though it permanently holds water — "it looks like a pond to you and I." The structure catches sediment and slows gully erosion, which then improves water quality.

Memorial Park also contributes to poor water quality, though its watershed is much smaller than Harrow's Branch.

The pond in Memorial Park has silted in over the years, Seals said.

"We cleaned it once [in 2004] but it silted up again," he said. "It has a lot of bank sloughing and soils that are carried down into the pond."

But the silt continues to erode into the pond, estimated at 232 tons per year.

"What happens is it fills in with sedimentation, and when it does that you don't have the aquatic fish type habitat in there because it's so full of sediment," Altheide said.

That pond feeds into the Des Moines River, so protecting it will improve water quality.

But the park's soil health also needs to improve, which will help its ability to absorb water so there isn't as much run-off. To accomplish this they'll use "aerating practices on the park's lawn area," she said.

"If you go out and walk there, it's hard and doesn't have a lot of organic matter," she said. "It doesn't have the root growth going down into the lawn for a very long distance, so the water just isn't able to infiltrate as it would if it had better health."

Text Only
Local News
  • Seasonal forecast Cool summer leading to cool fall? OTTUMWA — By late July, the average daytime high temperature starts to drop. What is normally the hottest part of the year is over. Averages are still in the mid-80s, and it certainly wouldn’t be out of the ordinary to see days in even the upper 90s.

    July 28, 2014 1 Photo

  • Grant helps Hills keep students on track OTTUMWA — Thanks to a grant designed to improve graduation rates, Indian Hills Community College now has even more tools in its campuswide effort to help students with needs and give them the resources they need to stay in class. Indian Hills is one

    July 28, 2014

  • 0728 OTT ribs in eldon BBQ dinner with a hundred friends

    ELDON --- This year's Eldon Rib Cook-off was won by three BBQ chefs --- and about 150 hungry visitors. "I was down here last year, too," said Dwayne Yates from Floris, who was biting into his third smoked rib. "I never had a bad one yet." That's what

    July 27, 2014 1 Photo

  • Mediacom: Rural cable consumers and companies mistreated OTTUMWA --- You may want to add just a racing channel, a court channel or a nature channel to your cable line up. Unfortunately, you'll probably have to buy a "bundle," which, ironically, is what it will cost you here in Wapello County. That's accord

    July 26, 2014

  • Alternate juror could not have convicted Techel based on evidence DAVENPORT — An alternate juror who was dismissed before Seth Techel, 23, of Agency was convicted of killing his wife and the non-consensual termination of a human pregnancy says the verdict could have been different if she had been in deliberations.D

    July 25, 2014

  • Overcome testing fear, get a good job OTTUMWA — It's not who you know, it's what you know. That's what City leaders say about getting a good paying job in Ottumwa. "It seems like in the last year we've had a real reduction in the number of individuals who've applied," said Joni Keith, hu

    July 25, 2014

  • Water Pollution Control Facility gets OK to upgrade OTTUMWA — An emergency Ottumwa City Council meeting resulted in spending $140,583 for the Water Pollution Control Facility. Friday afternoon, council members listened intently as Ottumwa Water Pollution Control Facility Superintendent Kam Reeves told

    July 25, 2014

  • Quincy Ave. project starts Aug. 4 OTTUMWA — Updates on the Quincy Avenue project was given to residents and businesses residing between Albia Road and Hwy. 34 on Thursday night at Ottumwa City Hall. About a dozen people attended the meeting where City Engineer Dan Sturm gave an updat

    July 25, 2014

  • Silence continues on fatal shooting OTTUMWA — Law enforcement is exercising its right to remain silent about a shooting death that occurred south of town this week. The Wapello County Sheriff's Office, which had responded to the shooting, said most information on the case would now com

    July 25, 2014

  • 0726 OTT cedar creek Gone in a flash

    BLOOMFIELD — Bob Parker got about as close to lightning as you can Friday morning, and came out of it without injury. A line of thunderstorms started moving through southeast Iowa in the early morning hours. Parker was heading to work at about 7 a.m.

    July 25, 2014 2 Photos

Photo reprints


Obituaries

Facebook