If all goes well, I might be able to get down to Madison, Ind., the week of April 6. That's the newest target date for the
big bridge slide.
This is from an e-mail I received the other evening from the Milton-Madison Bridge Project:
Preparation
work continues for the slide of the Milton-Madison Bridge, which is tentatively
scheduled to take place the week of April 6. Once the bridge has been moved onto
its permanent piers, it will take approximately a week to complete inspections,
road connections to the bridge and other work. As a result, the bridge will
remain closed until mid-April.
Additional restraints are being installed
and the sliding harnesses modified as part of the prep work. This additional
work follows a four-step process: The measures are designed off site, the
designs are reviewed by the states, the materials are fabricated and/or
delivered to the site, and finally, they are installed by bridge
crews.
Each of the four steps has its own timeline, and one must be
completed before the next. “We’re working diligently and carefully to move the
bridge and get it reopened safely and in a timely manner,” said Kevin Hetrick,
project manager for the Indiana Department of Transportation
(INDOT).
Structural engineers will continue to monitor and inspect the
bridge throughout the process to ensure it is safe through all phases of work.
Meanwhile, Walsh Construction crews continue to work as they are able on other
tasks that must be completed before the bridge reopens to traffic, such as
installing the remaining concrete railings and deck for the Indiana and Kentucky
approaches to the bridge.
Over the weekend, construction crews completed
the job of jacking up the bridge and replacing a steel bearing that dislodged
March 11. The southeast corner of the bridge was raised nearly one foot in
order to slide the bearing into place. The jacks were then removed, placing the
bridge load back on its bearings.
On March 13, a 100-foot concrete
approach bridge section was slid laterally into place over the Milton, Ky.,
riverbank. This was a precursor of the upcoming main truss slide because it
involved the same equipment and process. Time-lapse video is available on the
project website’s News Center page:
click here
to view time-lapse video.
The nearly half-mile steel truss
will be slid laterally 55 feet onto refurbished permanent piers. While there
have been reportedly more than 30 bridge slides in the U.S., the Milton-Madison
Bridge will be the longest steel truss (2,428 feet) in North America to be slid
laterally into place.
While U.S. 421 remains closed across the Ohio
River between Madison, Ind., and Milton, Ky., detours will remain in effect.
Signage is detouring traffic to the Markland Locks and Dam Bridge, connecting
Kentucky Route 1039 and Indiana State Road 101, 26 miles upstream, or the I-65
Kennedy Bridge in Louisville, 46 miles downstream.
A ferry has been
providing transportation across the river for emergency vehicles, such as an
ambulance. Residents are asked to keep Ferry Street and the boat ramps clear on
both sides of the river.
As updates become available, they will be
posted on the project’s website,
miltonmadisonbridge.com, and via Twitter at
twitter.com/mmbridgeproject. Regular updates will
also be provided to local news media.
The Milton-Madison Bridge Project
is a joint effort between the Indiana Department of Transportation and Kentucky
Transportation Cabinet. The new steel truss bridge is 2,428 feet long and 40
feet wide with two 12-foot lanes and eight-foot shoulders – twice as wide as the
old bridge.
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This one if about three weeks old. Sorry for the lateness, but it's still good. The
hydroelectric plant at the Meldahl Locks and Dam is on schedule to go into service in about 12 months.
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And then there's
this report of a towboat grounding in the Ohio River on Wednesday at about Mile 65.
Here's a photo.
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Normally, we fret here over invasive species from elsewhere that are causing problems in the Ohio River system. In North Carolina, wildlife officials are dealing with the spread of the
rusty craysfish, a species of crawdad (which is what we call them where I come from) from the Ohio River watershed.