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| USACE-image |
An example of a double-locking operation.
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| USACE-image |
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| USACE-mission Dam consists of a concrete dam 763 feet long with four roller gates and eight tainter gates. Earth embankment is 6,000 feet long with a concrete spillway 1,200 feet long. |
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| USACE-content A lift of 8' |
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| John Weeks |
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| HAER IOWA,22-GUTBU,1-, cropped 2. OVERALL VIEW OF DAM, LOOKING NORTHEAST, UPSTREAM - Upper Mississippi River 9-Foot Channel, Lock & Dam No. 10, Guttenberg, Clayton County, IA Photos from Survey HAER IA-22 [This report has 114 photos and diagrams.] |
Two of the eight Tainter gates are submersible.
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| HAER IOWA,22-GUTBU,1- 17. DETAIL VIEW OF TAINTER GATE, SHOWING SUBMERSIBLE (LEFT) AND NONSUBMERSIBLE (RIGHT) GATES, PIERS AND DAM BRIDGE, WITH ROLLER GATE HEADHOUSE IN BACKGROUND, LOOKING NORTHEAST |
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| Feb 2022: Steve Vogt posted Good morning from lock 10 Richard Thomas: The yellow structure is the footbridge used to get across the chamber. Are they working on the lower gates? Steve Vogt: Richard Thomas yes the anchorages. |
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| Steve commented on his post |
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| USACE-report |
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| USACE-brochure This is the southernmost lock in the St. Paul Disctrict |
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| USACE-navigation |
USACE St. Paul District posted three photos with the comment:
A shout out to Barb Wall, Lock and Dam 10 head operator, in Guttenberg, Iowa, as she explains what one of the four roller gates machinery is used for in maintaining the 9-foot navigation channel. That wheel is the main drive gear directly attached to the sprocket that moves the chain to raise and lower a dam roller gate. A reduction gear system reduces the number of revolutions per minute while simultaneously multiplying the torque of an electric motor - similar to the chain and sprocket assembly on a 21-speed bike.
Steven Bruni shared with the comment: "We are always keeping track and giving shout outs to the men and women on the boats... but let us not forget about the men and women who work and run the lock and dams. Without them these massive boats could not travel up and down the Mississippi River."
Richard Thomas: It was always a “ good time” when we crawled into those gears with grease guns and buckets of grease.
Dave Harrington: I'm a bit of an engineering geek. I read up on the design of Jeremiah Burnham Tainter's gates. Pool 12 is approaching record lows. [Sep 2022] We recently boated up to L&D 11. Seemed the rollers were on the sill, but a north wind was pushing pool 11 water over the top. Nothing was boiling under these but a little was coming under the tainters.
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Apr 2023: with the river running that high, it won't take long to fill up the lock.
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| David Webster posted #whereiswebbie [#10 got the most votes. But #11 got a strong vote.] Dave Harrington:Looks like L&D 11 Dubuque. Water tower on the bluff. |
The above photo was Apr 19, which had a river level of 16'.
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| weather |
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| 13:37 video @ 4:14 |
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| weather |
Spring 2023 flood:
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| 3:53 video @ 3:18 |
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