Wednesday, May 8, 2019

Mississippi Lock and Dam #2 at Hastings, MN

(John A. Weeks IIISatellite)

USACE

Angle Binner posted
lock 2 and courtesy of Chuck Holst

John Weeks III
This structure is 722 feet long and consists of 19 tainter gates, each 30 feet wide. 

Deborah Holdgrafer posted

Angel Binner shared a USACE St. Paul District photo
New miter gates enroute to Lock & Dam 2. Two deck hands are circled to demonstrate the size.
https://go.usa.gov/xFcwy
Locks and Dam 2’s miter gates are original from the 1940s. Over time, the gates have been damaged and distressed, which has led to serviceability and safety issues. The new upstream gates are 27 feet tall and weigh 256,000 pounds, while the downstream gates are 30 feet tall and weigh 266,000 pounds. The new gates will increase navigational longevity and operational readiness in support of the economically significant navigation infrastructure.
Dave Harrington: Did these gates come up from the USACE yard at L&D 14, or does the St. Paul district have its own build/repair site?
Angel Binner: Dave Harrington came up from rock island.



Two photos from USACE's announcement. Each had the caption: "New miter gates for Lock and Dam 2 in Hastings, Minn., lock through Lock and Dam 10 in Guttenberg, Iowa, July 7. The gates will be installed at Lock and Dam 2 the weeks of July 19-30, 2021."
From the article: "The new upstream gates are 27 feet tall and weigh 256,000 pounds, while the downstream gates are 30 feet tall and weigh 266,000 pounds."
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Angel Binner shared USACE St. Paul District
REMINDER: Lock and Dam 2 closure: The first of four, 12 hour closures at Lock & Dam 2 in Hastings is tomorrow from 7am-7pm. This is so we can replace the original miter gates, the gates at the upstream and downstream ends of the lock chamber. The lock will also be closed:
Thurs., July 22
Tues., July 27
Thurs., July 29
Once the lock reopens, lock staff will communicate specific locking instructions via marine band VHF radio channel 14. More: https://go.usa.gov/xFcwy #BuildingStrong

Dave Lewey posted 10 photos with the comment: "Stopped at Lock 2 a little earlier and they are getting ready for the first gate change tomorrow!!" [I wish someone would ask him to turn his phone horizontally.]
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Angel Binner shared a USACE photo

Photo from USACE

USACE posted two photos with the comment: "THEN AND NOW: On this day in 1928, the St. Paul District awards a contract for the construction of Lock and Dam 2 in Hastings, Minnesota. It is the first large Corps project to be constructed by private contractors in the district. Previous large projects had been built with government plant and contract labor. More: http://ow.ly/zo1K50L8uTB"
Steven Bruni shared
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1 of 6 photos posted by David Webster
[This was taken soon after the flood of 2023. Note that the downstream side is not much lower than the upstream side.]

1 of 12 photos and a video posted by Debarah Holdgrafer
Dave Harrington: One thing I've noticed about high water.
It takes less time to raise/lower the chamber than it does to open/close the gates.
[It appears that the Spring 2023 snowmelt is still in progress.]

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