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May 17th, 2010

 

The White County Drainage Board convened at 10:30 A. M. in the Commissioners’ Room of the White County Building, Monticello, Indiana. Board members present were: President Ronald Schmierer, Vice President Steve Burton, and Drainage Board Member John Heimlich. Also present were Attorney George W. Loy, Surveyor Dennis Sterrett, Drainage Assistant Mary Sterrett and Secretary Jamie Rozzi.

 

Also in attendance were Engineer Todd Frauhiger, Dow Dellinger representing Northgate-Thayer Aggregates LLC, and Charlie Mellon.

 

The first item on the agenda was to approve the minutes from the May 3rd, 2010 meeting. Board Member Heimlich so moved. Board Member Burton seconded the motion. Motion carried unanimously.

 

The next item on the agenda was Northgate-Thayer Aggregates, LLC Drainage Review.

 

Engineer Frauhiger explained, "The northeast corner of the site is what Denny was showing us just now. The end of the grass swale is right there…and they are going to pipe from their proposed detention pond into that grass swale. There are two sedimentation basins they put in, so all the water before it goes into the detention pond will either go through this sedimentation basin or this sedimentation basin to take some of the silt out of it before it actually gets to the detention pond. At that point it’s discharged, by gravity, into that grass swale. The other interesting thing is that to be sure that no silt gets carried on downstream in our ditch, every 100 feet along that grass swale they are going to put in a small rip-rap check dam. So, if the sedimentation tries to get off site they are going to pick it up on each one of those check dams and they’ll be able to clean it out behind the check dams….and that is every 100 feet all the way down to the outlet. So, it’s a significant number."

 

Surveyor Sterrett stated, "It’s about 2,000 feet."

 

Engineer Frauhiger stated, "So, you’re talking about a significant number of check dams down through there. I would have to say that this is one of the better drainage submittals we’ve gotten. The firm, Nederveld, did an outstanding job. Not only did they use the hand method to calculate the detention storage, but that actually went back and used the TR20 methods just to confirm their flows and they all checked within 10 percent, which is very good for a drainage analysis. They are actually discharging the 100 year storm, pretty much at the two year undeveloped rate. They are allowed to discharge at the ten year, but they actually restricted it past the ten year and all the way down to the two year. So, we’ll be getting significantly less water off this site than if it wasn’t developed. There is their outlet control structure, and again, everything is meant to keep the sedimentation onsite. Their outlet control structure is actually a perforated tile, with a grate on top of it, surrounded by stone and filter fabric, just to make sure that any sedimentation that happens to get through the two sedimentation basins and into the detention pond—they have another chance to catch it there. I think they took everything into account and did a good job. I would recommend approval."

 

Board Member Burton made a motion to approve the drainage plan for Northgate-Thayer Aggregates, LLC. Board Member Heimlich seconded the motion. Motion carried unanimously.

 

Charlie Mellon stated, "That ditch floods a lot. That east road floods and it will be closed for…weeks at a time. These people have been in here growling about that. They should have been here today. Were the neighbors notified?"

 

Surveyor Sterrett stated, "I actually called Mr. Bumbleburg’s office."

 

Board Member Burton explained, "See, Charlie, what we’re saying here…if you didn’t hear, is that this will discharge less than it normally does, at a slower rate, so it’s actually better. The road flooded before this came in, and you know it flooded, but they are actually…it’s not going to keep it from flooding, but it’s going to do it at a slower rate. So they are actually making it better than it was."

 

Charlie Mellon stated, "Well, I can’t see that."

 

Attorney Loy asked, "Todd, can you explain it?"

 

Engineer Frauhiger explained, "The ordinance that we currently have allows an applicant to two-stage discharge. They have to calculate the undeveloped flow coming off of the site before any development is done at the two year storm and the ten year storm. And then they are allowed, post-development after it’s totally developed and their going through their detention pond…they are allowed to discharge the 10 year storm at the rate of the 2 year pre-development and they are allowed to discharge the 100 year developed storm at the 10 year pre-development. They went beyond that and exceeded that so when it that is developed and we get a 100 year flow out there we would have gotten about 80-90 cubic feet per second coming off of this site, but in the future we’re going to get something like 37, which is the 2 year pre-developed storm. So, they are actually going to be able to hold half the water on site that would have gone down that ditch un-detained, so it’s actually a help. Now granted, that flooding situation they have downstream, that 50 CFS isn’t going to make a huge difference or impact—but they aren’t hurting anything they are helping it."

 

The next item on the agenda is to discuss the W. W. Helfrick project.

 

Surveyor Sterrett explained, "This is near 1000 North where the W. W. Helfrick starts, it turns into the Harp-Helfrick and then drains into the river. We’ve got a project to clean this…and then Branch #2…the main ditch is 15,877 feet and the branch is about 5,205 feet. Right now there is $20,405 in the fund, plus we’ll have a 2009 settlement of $2,500 and a 2010 settlement of $3,600. So, at the end of 2010 there should be about $26,505 in the fund. There is some brush and I calculated the brush at $8,200. I went with $1.00/foot for clean out, so it’s probably too high. That would come up to $29,282."

 

Chairman Schmierer asked, "Does that go through you, Charlie?"

 

Charlie Mellon replied, "Yeah, up there where there isn’t hardly any brush…up there through Danny…that one side needs trimmed up. Some of those logs on the west side…do you figure on doing that?"

 

Surveyor Sterrett stated, "Yeah, in the detailed specs I’ve got to take the brush off of one side and the hangovers on the other side."

 

Chairman Schmierer asked, "So what is your question?"

 

Surveyor Sterrett replied, "Well, I guess…shall we just do a maintenance project on it so I can get bids? I think we’ll have to write a letter to Pulaski County because it’s a joint drain and request a waiver. I can explain that there is enough money in the fund."

 

Chairman Schmierer stated, "I would say go ahead and do what you need to do."

 

The next item on the agenda is to discuss the G. W. Chamberlain (branch of Esther Fraser).

 

Surveyor Sterrett explained, "I just wanted to tell you what we were going to do and where it’s at. We’ve already sent out for quotes on it. Gary Cooper, Ed Lawson, Kenneth Rogers…this ditch needs cleaned. When we did the Fraser we did 500 feet, so I was just going to go ahead and use the maintenance fund to clean 2, 450 feet."

 

Chairman Schmierer asked, "Do you have money in it, have you?"

 

Surveyor Sterrett replied, "There is about $50,000 in it."

 

Chairman Schmierer asked, "And you’ve already sent out for quotes?"

 

Surveyor Sterrett replied, "Yes, I was just informing you of what we were doing."

 

Surveyor Sterrett explained that a project was completed on the William Coonrod back in 2008, but payment fell through the cracks and was never paid because an invoice was never submitted. Chairman Schmierer said to go ahead and pay the invoice.

 

Surveyor Sterrett reported that a second and final check was received from FEMA. Surveyor Sterrett had also signed the P-4 so our FEMA project is finished.

 

Chairman Schmierer asked if there was anything further for the Drainage Board. Chairman Schmierer then adjourned the meeting.