20170607 8884 |
So I zoomed in. You can kinda see the pilothouse of the tug boat for Crane Barge 10 on the left, the two pillars that are used to anchor the barge and most of the Manitowoc 777 that was setting on the barge.
So I crossed the parking lot to go to the visitor center to check out what was happening. I noted the temporary offices because that indicates they must be planning to do some non-trivial work.
I knew there was a big red sign on the fence that said no cameras were allowed in the area by the lock, so I left the camera in the van. Thus I was not able to take pictures or video of the crane lifting a steel cylinder that was about twice as tall and twice as wide as the man standing next to it. The crane swung around and set it down on the barge. It then picked up another cylinder that I had noticed was laying on the barge. The crane lifted the new one up and swung it into position. I figured it would take a while to lower the new part in place, so I left. On my way back to the van, it occurred to me that I could play games with the rules and take pictures from outside the fence through the gate. So I grabbed the camera and trotted back up to the top of the sidewalk. To my surprise, they already had the part down in place by the time I got back.
It looks like they were still unfastening the orange rigging.
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Zoomed in on the shot above. |
And leaning over a handrail to get a shot from the other side of the tree was pretty well destroyed by the fence.
20170608 9075 |
I took the crane photo while rushing back to Brandon Road to get a picture of the recreational boat I saw entering the lock while I was driving to the parking lot. It turns out that there was already a tow in the lock. By the time there was a break in the traffic so that I could step out on the bridge to take a picture, the gate had started to close.
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20170615 9188 |
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Satellite |
A towboat had just left the upstream gates because I saw the gates were still closing. So I waited until a lock crew of three people walked by me. When I asked some questions, the crew member with an Army Corps of Engineer shirt stayed to answer them. First of all, the operation I saw on June 7 was the replacement of a floating tie-up. So the crane was lifting something heavy enough that the "twice the height and width of a man" cylinder would sink to its top. That cylinder had a little cylinder attached to one side of its top. That would be the tie-up.
20150714 2712 |
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Closeup from 2712 |
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Camera resolution from 9073 |
20140613 0061 |
On June 21 I made another trip to the lock to see what the crane was doing. It looked like it was doing nothing. It was parked in the same place and there were no workmen in sight even though there were about 10 pickup trucks parked on the access road. The USACE person I talked to on June 15 said they would build the bulkhead and then wait for the gate repair. When I asked when the gate would be repaired, he said the had no idea because it depended on what other gate work needed to be done by the USACE. He implied it could be a long wait because their gate problem was rather minor.
20170621 9305 |
9311 |
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Closeup of 9311 |
Comparing this picture to a closeup of a June 15th photo, the hieght of the big hook has changed and the telescope boom crane is setting at a different angle. So they are doing some work with this equipment, I just haven't been able to catch it. I did a couple of passes up Railroad Street trying to grab pictures in gaps between the weeds. Below are closeups from the best photo from each pass.
We can see the two cranes are probably working on different projects. If you look at the satellite photo above, the 777 is on the dam side of the point created by the dam and lock walls. The yellow crane is on the dam itself.
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Steve McGee posted What was the idea behind using boom cylinders as opposed to cables? Any loss in lift by the cylinders pulling it up instead of pushing? [From the comments, it seems the motivation for using rams was that it could boom up and down faster than a "cable bridle" design. But they had boom deflection because the attachment point was a lot closer to the house than is the case with cable attachments. Some liked the 777, some hated it. It was the only Manitowoc design that used hydraulic rams to control the boom.] |
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Tim Freitag posted, cropped Saw this little number heading down the Illinois river at Peoria il Nestor Madson Corps of Engineers 777 Levi Kriete Nestor Madson and the mighty M/V Channahon [With Google Search, I found a photo of USACE Channahon. But I could not find a fact sheet for it on the USACE website. I was stubborn and wasted a lot of time looking. It appers that every district admins its own site and organizes it differently. And it seems like the web designers were told to try to hide information.] |
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David Muise commented on Tim's post [It frustrates when they don't type any information. It is obviously being towed rather than pushed.] |
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David Webster posted, Apr 2021 It looks like the USACE plans to do more construction on the Brandon Road Lock. |
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Dustin Weibrecht posted Brandon Road Lock |
A couple of timelapse videos of the lock filling and emptying.
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